Portaudio Record Callback | Audio-Digital.net

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PortAudio: PortAudio Tutorials

http://files.portaudio.com/docs/v19-doxydocs/tutorial_start.html#:~:text=Write%20a%20callback%20function%20that%20will%20be%20called,the%20inputBuffer%20and%2For%20write%20data%20to%20the%20outputBuffer.

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PortAudio: Writing a Callback Function

http://www.portaudio.com/docs/v19-doxydocs/writing_a_callback.html

The "callback" is a function that is called by the PortAudio engine whenever it has captured audio data, or when it needs more audio data for output. Before we begin, it's important to realize that the callback is a delicate place.

PortAudio - an Open-Source Cross-Platform Audio API

http://portaudio.com/

PortAudio provides a very simple API for recording and/or playing sound using a simple callback function or a blocking read/write interface. Example programs are included that play sine waves, process audio input (guitar fuzz), record and playback audio, list available audio devices, etc.

c++ - Portaudio Callback Function Example - Stack Overflow

https://stackoverflow.com/questions/26172522/portaudio-callback-function-example

Many apps may want to use paFramesPerBufferUnspecified, which tells PortAudio to pick the best, possibly changing, buffer size.*/ patestCallback, /* this is your callback function */ &paData ); /*This is a pointer that will be passed to your callback*/. An example of a good callback function would be very useful, but of course any help is ...

portaudio - Interpreting inputBuffer's Value in a Callback ...

https://stackoverflow.com/questions/35640453/interpreting-inputbuffers-value-in-a-callback

The inputBuffer parameter to the callback is a void*. The actual type of the underlying buffer depends on the parameters and the flags that you pass to Pa_OpenStream. If you specified paFloat32 then there will be a float* in there somewhere. However the are two possibilities: Interleaved: inputParameters.sampleFormat = paFloat32;

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