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python - can PyAudio handle non-interleaved buffers ...
https://stackoverflow.com/questions/36926405/can-pyaudio-handle-non-interleaved-buffers#:~:text=Given%20your%20example%20code%2C%20you%20seem%20to%20misunderstand,pointers%20to%20each%20row%20of%20your%20NumPy%20arrays.
[Portaudio] PortAudio Asserts when using non-interleaved ...
https://portaudio.music.columbia.narkive.com/1wGlcULH/asserts-when-using-non-interleaved-sample-format
I am using the portaudio library to read/write audio from a multi-channel audio device. I am operating the stream in non-interleaved mode. I am getting the following assert from the PortAudio code when I attempt to play sound on my Windows 7 64-bit system. The assert occurs on line 599 of pa_process.c assert( bp->hostOutputIsInterleaved )
python - can PyAudio handle non-interleaved buffers ...
https://stackoverflow.com/questions/36926405/can-pyaudio-handle-non-interleaved-buffers
Given your example code, you seem to misunderstand how PortAudio's "non-interleaved" mode works. In this mode, PortAudio assumes that input and output data are C-arrays of pointers to a bunch of other arrays each holding the data for one channel. To be able to use this, you would need to get pointers to each row of your NumPy arrays.
PortAudio: portaudio.h File Reference
http://portaudio.com/docs/v19-doxydocs/portaudio_8h.html
A non-negative PaDeviceIndex ranging from 0 to (Pa_GetDeviceCount()-1) or, a PaErrorCode (which are always negative) if PortAudio is not initialized or an error is encountered. A paInvalidHostApi error code indicates that the host API index …
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