flothesof/pyqtgraph-spectrographer

A pyqtgraph based spectrogram app using pyaudio.

pyqtgraph-spectrographer's Issues

What changes are needed for 32Bit Audio?

I verified that this program works great on a Jetson Nano with a USB Microphone that has 16bit depth. But, I'm having issues getting it to work with an I2S MEMS Microphone (SPH0645LM4H) that has a bit depth of 24bits (where you use 32bits transfers).

I successfully tested recording wave files with pyaudio with this microphone as long as I use pyaudio.paInt32 as the sample format. But, I can't figure out everything I need to change to get it work with the pyqtgraph-spectrographer.

I tried changing lines 21, and 33 of the microphone.py file, but then I didn't get anything on the waveform or FFT plot.

Incorrect axis ticks/scale in spectrogram's frequency scale (correct value / 2)

I realized that the frequency scale in the spectrogram view is off by a factor of 0.5.

Great work on the pyqtgraph based spectrogram! I love it!