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Stereo and mono sound output is supported via a slightly customized version of libsoundio 2.0.
Audio clips can have arbitrary channel counts, and can be queued for streaming or dynamic music.
CA contains a very simple embedded VM for running custom signal processors, allowing you to add custom DSP code (currently assembly language only) without compiling native code.
Errors are reported using well-documented negative return codes, and CA attempts to handle expected errors gracefully.