Create files of sound localization

[introlab]

Create files of sound localization

[FrancoisGrondin]

You can find some info in a paper with wrote a little while ago to perform triangulation with multiple arrays:

https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8206065

[GodCed]

Hi @mikoga,

ODAS Studio does not record tracking information (azimut and energy of the potential and tracked sources).

However, ODAS, the processing library, does. You can save the tracking information to a CSV file. However, you will not be able to replay this file into ODAS Studio.

To review tracking not in real time, I would suggest you save the RAW audio trough alsa or ODAS, then run ODAS on your recorded audio to reprocess the tracking.

[mikoga]

Thanks a lot for the answer!
Can you please guide the noob how to do these things? :)

1. How to save with odaslive to csv?
2. How to save RAW files with odaslive?

[GodCed]

Please see the ODAS wiki for instructions on how to adapt your config file.

[GodCed]

I'm not sure you can do CSV, but you can do json. You'll need interface format json, type file.
For raw, you need to use an external tool, such as acrecord or Audacity. odaslive only record separated and post filtered audio. Use interface type file.

[oscarmh]

Hi, as I dont want to open a new issue, I will jump into this (sorry) thanks for ODASweb first of all. My question is, can we measure distance to sound source ? I´m thinking on using it for active shooter location in my campus. Will it fit ? thanks in advance

[GodCed]

@oscarmh ODAS can only provide direction of arrival of sound relative to a single microphone array. However you may obtain distance by triangulating directions of arrival from multiple arrays installed at different locations.

[oscarmh]

sounds great, any hint on how to achieve that triangulation ? Imagen I can have 3 arrays separated by let´s say 250 meters. I dont see how can I configure them in ODAS, thanks in advance

[GodCed]

You need to have one ODAS instance per array. Then you'll have to build your own software to perform the triangulation.