xanguera/beamformit

BeamformIt acoustic beamforming software

Hi there 👋

Welcome to my personal repo!

beamformit's Issues

external include path

Hi,
Thank you for this great package.
When I make the file, I get this error:

In file included from C:/Users/Admin/Documents/GitHub/BeamformIt/includes/delaysum.h:7,
from C:/Users/Admin/Documents/GitHub/BeamformIt/src/BeamformIt.cc:23:
C:/Users/Admin/Documents/GitHub/BeamformIt/includes/tdoa.h:9:10: fatal error: ffft/FFTReal.h: No such file or directory
9 | #include "ffft/FFTReal.h"
| ^~~~~~~~~~~~~~~~
compilation terminated.

would you please help me to solve it

unknown operand when reading wav files

when i run the do_beamforming.sh with sh do_beamforming.sh data test, it shows the following message:
sh: data/20G_20GO010I_STR.CH1.wav: unknown operand sh: data/20G_20GO010I_STR.CH2.wav: unknown operand sh: data/20G_20GO010I_STR.CH3.wav: unknown operand sh: data/20G_20GO010I_STR.CH4.wav: unknown operand sh: data/20G_20GO010I_STR.CH5.wav: unknown operand sh: data/20G_20GO010I_STR.CH6.wav: unknown operand
and
Opening the input channels Extracting channel information for show test [ERROR]: No information on showID test was found in channels file ./output/test/channels_file

The programm has no output and I have no idea about the channels_file, could you solve my problem?

out-of-directory build places content in-directory

Hi - when I build with cmake I usually use a separate build folder so as not to clutter the source folder. However, the BeamformIt cmake scripts somehow ignore that desire, and place the produced executable back into the source folder.

To reproduce:

• Get a fresh clone, and cd into it
• mkdir build
• cd build
• cmake ..
• make
• Expected: all build products are inside the build folder
• Actual: the BeamformIt executable is actually outside the build folder, in the source folder.

BeamformIt output file

Hey, I am new to the beamformit tool and I am running tool using the basic way. In the output I have .del, .del2 and .weat file. Can you tell me where are actually the tdoa features, I know that .del contain best tdoa delays for each segment. So are those delays actually the tdoa features or have to use some weighing to generate feature using .weat file is my question? ?

How closely aligned do audio files have to be for this to work?

I’m trying to work with a similar set of recordings to the example in the README (a bunch of random microphones recording separately in a conference room. However, they all started recording and stopped recording at different times. Do I need to align the files somehow so they all start and stop at the same time or does the BeamformIt simple method do that for me?

Thanks!

InputFile Erro

When I ran the simple way using do_beamforming.sh to obtain tdoa feature, I am getting Input File error @ #

question about the beamformer

I have read your paper and a quick look at your code. I am wondering about the deployment of the microphones in the room. Does the microphone has the arbitrary position？If it is arbitrary, so I can use arbitrary microphone array ( ULA, non uniform linear array, circular array or even spherical array) to record the signals and then put them into your beamformerIT to get the result. In terms of the delay and sum, then question comes up again, how does algorithm know the whole steering vector for calculating the beamformer?

Why GCC-PHAT values are always positive and range from 0 to 1

Hi Xavier,

I read your paper "Acoustic Beamforming for Speaker Diarization fo Meetings". You said that "All possible values range from 0 to 1 given the frequency domain amplitude normalization performed.". But I think frequency domain amplitude normalization cannot guarantee the GCC-PHAT values range from 0-1. Can you give me some details?

Best
Sining

Any advice on hoe to use beamformit to remove background noise from single channel recording?

For some events I have a single recording. but i still want to use beamformit for the acoustic signal enhancment capabilities. specifically background noise removal based on wiener filter. what i did is i run do_beamforming.sh on a folder with a single recording but the background noise in the output was not removed. Any advice on hoe to use beamformit to remove background noise from single channel recording?

question about real-time performance

Hi , when I use the BeamformIt to process my rocodings ,it preforms well ,but there is a doubt that can the BeamformIt work realtime?

Can this system be used directly after downloading?

Can the system process data in real time?
Does this system have a version of C?

algorithm returns low correlation between channels

Hi,
I was applying beamformit on a set of recordings. The correlation values the algorithm reported was low. I tried to tweak some parameters to increase the correlation but no luck: I increased delay margin up to 300 but correlation did not change. Below is the detailed messages that I am getting. I would appreciate if you can suggest any parameters I should be looking .

Thank you.

 Mandatory parameters:
  scroll_size: 250
  window_size: 500
  source_dir: 
  show_id: Zahraa14
  result_dir: /Users/mas/MultiChannelSignalEnhancment/src/BeamformIt/output/Zahraa14
  channels_file: ./output/Zahraa14/channels_file
 Optional parameters:
  uem_file: 
  delay_variance: 5
  ovl_variance: 20
  do_optimum delays: 1
  do_indiv_channels: 1
  output_format: 0
  do_xcorr_reference: 1
  nbest_amount: 4
  reference_channel: 0
  Transition nbest probability: 25.000000
  Percentage of noisy xcorr values: 10.000000
Creating necessary directories
Opening the input channels
Extracting channel information for show Zahraa14
File 0: /Users/mas/MultiChannelSignalEnhancment/data/interm/new2//0.wav
File 1: /Users/mas/MultiChannelSignalEnhancment/data/interm/new2//1.wav
File 2: /Users/mas/MultiChannelSignalEnhancment/data/interm/new2//2.wav
Filename: //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//0.wav
File //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//0.wav (1 channels) open
Filename: //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//1.wav
File //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//1.wav (1 channels) open
Filename: //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//2.wav
File //Users/mas/MultiChannelSignalEnhancment/data/interm/new2//2.wav (1 channels) open
NumChannels is: 3, sampling rate is 16000
Opening output channels
Opening /Users/mas/MultiChannelSignalEnhancment/src/BeamformIt/output/Zahraa14/Zahraa14.wav file
We will output to file /Users/mas/MultiChannelSignalEnhancment/src/BeamformIt/output/Zahraa14///0.wav
We will output to file /Users/mas/MultiChannelSignalEnhancment/src/BeamformIt/output/Zahraa14///1.wav
We will output to file /Users/mas/MultiChannelSignalEnhancment/src/BeamformIt/output/Zahraa14///2.wav
Marginst for delays in frames: 4800 in ms: 300
Computing the skew between input signalsFinding the skew for channel 1
Average skew: -75.199997
Finding the skew for channel 2
Average skew: -423.200012
Initializing...Total number of delays to be computed: 2575
Using an fft window of 8192 points for the window of 8000 points
finished
Setting the reference channel
Determining the reference channel via average xcorr values
Computing the average xcorr between 0 and 1
Average xcorr final: 0.061488
Computing the average xcorr between 0 and 2
Average xcorr final: 0.057684
Computing the average xcorr between 1 and 2
Average xcorr final: 0.082405
Selected channel 1 as the reference channel
Computing the scalling factor for the output signal
Calculating the maximum values of the signal, to do a signal adjustment
Processing channel 0
The Median maximum energy for channel 0 is 0.627289
Processing channel 1
The Median maximum energy for channel 1 is 0.939636
Processing channel 2
The Median maximum energy for channel 2 is 0.615570
Weighting calculated to adjust the signal: 0.412372
Finished computation of the scalling factor
Setting initial Channel Weights...finishedFrames: 10311680
Rate 250, window 500 frames 10311680 samplerate 16000
Processing 637.500 s. (99.029 percent)
Finished computing delays
Computing the optimum delays
Threshold is 0.050917 (min: 0.039975 max 0.363064)
Thresholding noisy frames lower than 0.050917
  Aplying a noise thresholding
  Finished applying a noise filter
Deconding Each channel Independently to find the 2-best delays from each N-best inputComputing the 1st best delay
First best start

Trans_weight selected to 25.000000
Starting Viterbi with 3 channels and 4 N-best values per channel
Computing Viterbi for channel 0
   Segmentation Over with Viterbi score = -3063.230279
Computing Viterbi for channel 1
   Segmentation Over with Viterbi score = -19371.280221
Computing Viterbi for channel 2
   Segmentation Over with Viterbi score = -2330.568275
First best finish
Computing the 2nd best delay
second best start

Trans_weight selected to 25.000000
Starting Viterbi with 3 channels and 4 N-best values per channel
Computing Viterbi for channel 0
   Segmentation Over with Viterbi score = -6616.264327
Computing Viterbi for channel 1
   Segmentation Over with Viterbi score = -2594371.280221
Computing Viterbi for channel 2
   Segmentation Over with Viterbi score = -6183.380772
second best finish
Done computing the 2nd best delay
Finished decoding both best paths, writting out results

Decoding all 2-best input delays to find the optimum path in coherence with all channels
Total number of possible delays: 8
Starting the viterbi
   Segmentation Over with Viterbi score = -7514.321233
Finished computing optimum delays
Finished computing the optimum delays
Printing delays to file
Summing up all the channels
Memory allocation for all data
Finished allocating memory
Wrong channel number 1 with correlation 0.014901
Wrong channel number 1 with correlation 0.014467
Wrong channel number 0 with correlation 0.027015
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.015113
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.032577
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.041954
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.023086
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
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Wrong channel number 1 with correlation 0.029149
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Wrong channel number 0 with correlation 0.001576
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Wrong channel number 0 with correlation 0.004511
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Wrong channel number 1 with correlation 0.025662
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
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Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.034923
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.009228
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.043301
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.009183
Wrong channel number 1 with correlation 0.000000
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Wrong channel number 2 with correlation 0.036026
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 1 with correlation 0.032423
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 0 with correlation 0.001720
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 0 with correlation 0.006803
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Wrong channel number 1 with correlation 0.004819
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 0 with correlation 0.029565
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Wrong channel number 0 with correlation 0.027352
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Wrong channel number 1 with correlation 0.031969
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Wrong channel number 1 with correlation 0.025097
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Wrong channel number 1 with correlation 0.021179
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 2 with correlation 0.000000
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Wrong channel number 0 with correlation 0.046169
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 1 with correlation 0.016364
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 0 with correlation 0.005212
Wrong channel number 0 with correlation 0.022709
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Wrong channel number 1 with correlation 0.036217
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Wrong channel number 0 with correlation 0.003055
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.034141
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 0 with correlation 0.004961
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.020477
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 0 with correlation 0.005767
Wrong channel number 0 with correlation 0.032747
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 0 with correlation 0.041937
Wrong channel number 2 with correlation 0.000000
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Wrong channel number 1 with correlation 0.033012
Wrong channel number 0 with correlation 0.000000
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Wrong channel number 2 with correlation 0.038594
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Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.005198
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.028020
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.003237
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.038916
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.029685
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.038039
Wrong channel number 0 with correlation 0.001857
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.037384
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.046636
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.018478
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.025881
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.017314
Wrong channel number 1 with correlation 0.030364
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.032189
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.037455
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.028501
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.008064
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.015151
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.022087
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.002012
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.030433
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.030204
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.048368
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.003618
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.046910
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.028467
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.036657
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.017482
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.009794
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.010996
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.038123
Wrong channel number 2 with correlation 0.017473
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.023829
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.048927
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.025426
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.020568
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.041552
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.002718
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.008435
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.017360
Wrong channel number 1 with correlation 0.042653
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.032888
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.045925
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.019390
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.013085
Wrong channel number 1 with correlation 0.021198
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.035363
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.035349
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.043898
Wrong channel number 0 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 0 with correlation 0.012438
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 2 with correlation 0.000000
Wrong channel number 1 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
Wrong channel number 0 with correlation 0.000000
finished writing files
Sinc-ed all files' outputs for the 0 best
Finished summing up all the channels
Closing all used channels
Finished closing all the channels

output file significantly larger than input

My original audio files had a size of 154MB, however, beamformit produces an output of 617MB. the fileSize = (bitsPerSample * samplesPerSecond * channels * duration) / 8;
How can I make beamformit write the output file with the same settings and not change the size of the processed audio.

Runtime error

Running the do_beamforming.sh script on a folder like so:

do_beamforming.sh ./my_folder_of_records gibberish

I get the error:

[ERROR]: No information on showID gibberish was found in channels file ./output/gibberish/channels_file

Question : is it possible to spatially filter audio using a microphone array?

I have a https://wiki.seeedstudio.com/ReSpeaker_Mic_Array_v2.0/ microphone array.
Is it possible, using this repository, given the microphone array topology, to spatially filter the audio channels in a particular direction?

warning my signals contain digital zeros

I have multiple recording of an event. the recordings started recording at different instances. first I aligned them by computing the (offset) and then padding the signal with zeros.
when i run do_beamforming.sh I get the following warning:
WARNING!!! no maximum points found in crosscorrelation!!! does your signal contain digital zeros?
Do beamformit have its own way to align signals? what should i pad my signal with to avoid this warning?

quesiton about --delays_margin

Hi ! I have a uniform circle arrays with diameter 80mm and six micrphones, when I set the delays_margin =0.25 according to the description , the tdoa is wrong . How should I set this parameter?

pass parameters to do_beamforming

I want to change the result_dir (-o) and the print_level. for that I am doing:
./do_beamforming.sh -o /Users/data/ /Users/data2/ out this is what I am getting:
Usage is: ./BeamformIt/do_beamforming.sh audio_source_dir output_name

I can enhance the sound in a certain direction

I can enhance the sound in a certain direction ,using your method,and how input
parameter

recommended min/max audio length

I am using beamformit on long recordings (1-3hrs). I would like to perform audio processing on chunks of processing for memory issues. I want to know is there any recommendations on the minimum and the maximum length of the audio needed for the beamformit to operate optimally.

Bug in string matching of -s option argument

When I run
Beamformit -s Foo-1

And my channel file has

                          Foo-1
                          Foo-11
                          Foo-12
                          …

all the waveforms with a channel name STARTING with “Foo-1” get used, i.e., the waveforms for Foo-11 etc. get used too. Also, an empty waveform name gets inserted between the lists for Foo-1, Foo-11, etc., which leads to an error when opening a nonexistent file.

It looks like a bug in the string matching of the -s argument against the first column of the channel file.

Andreas

.del files format explained

Hi @xanguera,

Thanks for BeamformIt, it works really well for my application. I do however have one question: could you explain the format of the .del files? What do the values mean? I am trying to use that data as a feature for diarization. Example of one row:
0 -> 0 1.000000 0 0.126987 4 0.125331 0 0.139378 0 0.175643 0 1.000000 -2 0.111881 -4 0.139887 0 1.000000 0 0.163803 0 0.157673 0 0.124941 2 0.124990 0 0.106618 0 0.120836 0 0.124682
There are 16 channels in my audio, and I see that reprented in this .del file. I get that the first number indicates a window of 250 ms. What I don't understand however are the values [0, 2, 4, -4] in front of every decimal value. I am guessing the decimal value is the delay info?

Thanks in advance.