PortAudio是一个便携式的音频I/O库,跨平台支持。它使用回调机制，要求音频处理。音频可以生成各种形式，包括32位浮点， 将转换为本地格式。-PortAudio is a portable audio I/O library designed for cross-platform support of audio. It uses a callback mechanism to request audio processing. Audio can be generated in