PortAudio is a C library that should suit your needs. There is a tutorial to get you started.
PortAudio is a free, cross-platform, open-source, audio I/O library. It lets you write simple audio programs in 'C' or C++ that will compile and run on many platforms including Windows, Macintosh OS X, and Unix (OSS/ALSA). It is intended to promote the exchange of audio software between developers on different platforms. Many applications use PortAudio for Audio I/O.
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.
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PortAudio 是一个可以满足您需求的 C 库。有一个教程可以帮助您入门。
PortAudio is a C library that should suit your needs. There is a tutorial to get you started.
https://github.com/rdp/directshow-demo-audio-input如果您想使用 directshow，-open-source 可能会有所帮助。
https://github.com/rdp/directshow-demo-audio-input-open-source might help, if you want to use directshow.