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Proposed Changes to PortAudio
http://portaudio.com/docs/proposals/019-NotifyClientWhenAllBuffersHavePlayed.html#:~:text=PortAudio%20allows%20clients%20to%20terminate%20a%20stream%20by,stream%20has%20actually%20completed%20playing%20all%20audio%20data.
c++ - Portaudio Callback Function Example - Stack Overflow
https://stackoverflow.com/questions/26172522/portaudio-callback-function-example
PortAudio: Writing a Callback Function
http://www.portaudio.com/docs/v19-doxydocs/writing_a_callback.html
PortAudio: portaudio.h File Reference
http://files.portaudio.com/docs/v19-doxydocs/portaudio_8h.html
PortAudio - an Open-Source Cross-Platform Audio API
Proposed Changes to PortAudio
http://portaudio.com/docs/proposals/019-NotifyClientWhenAllBuffersHavePlayed.html
PortAudio Tutorial - Columbia University
https://www.ee.columbia.edu/~mim/meap/paMat/portaudio_v18_1/docs/pa_tut_callback.html
Your callback function must return an int and accept the exact parameters specified in this typedef: typedef int (PortAudioCallback)( void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, PaTimestamp outTime, void *userData );
PyAudio Documentation — PyAudio 0.2.11 documentation
https://people.csail.mit.edu/hubert/pyaudio/docs/
PyAudio # define callback (2) def callback (in_data, frame_count, time_info, status): data = wf. readframes (frame_count) return (data, pyaudio. paContinue) # open stream using callback (3) stream = p. open (format = p. get_format_from_width (wf. getsampwidth ()), channels = wf. getnchannels (), rate = wf. getframerate (), output = True, stream_callback = callback) # start …
Streams using NumPy Arrays — python-sounddevice, version 0.4.4
https://python-sounddevice.readthedocs.io/en/0.4.4/api/streams.html
In order for a stream to maintain glitch-free operation the callback must consume and return audio data faster than it is recorded and/or played. PortAudio anticipates that each callback invocation may execute for a duration approaching the duration of frames audio frames at the stream’s sampling frequency. It is reasonable to expect to be able to utilise 70% or more of the …
Python - pyaudio - DevTut
https://devtut.github.io/python/pyaudio.html
In callback mode, PyAudio will call a specified callback function (2) whenever it needs new audio data (to play) and/or when there is new (recorded) audio data available. Note that PyAudio calls the callback function in a separate thread. The function has the following signature callback (<input_data>, <frame_count>, <time_info>, <status_flag>) and must return a tuple containing …
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