audiomix

Overview ¶

Command audiomix demonstrates editing audio with AVAudioMix.

It loads an audio or video file, applies volume ramp effects using AVMutableAudioMix, and either previews the result with AVPlayer or exports a new file with the mix baked in via AVAssetReader/Writer.

This example is a Go port of Apple's "Editing Spatial Audio with an Audio Mix" sample, adapted to use the general-purpose AVAudioMix APIs available through the avfoundation bindings.

Usage:

audiomix preview [--duration <seconds>] <file>
audiomix bake [--fade-in <seconds>] [--fade-out <seconds>] --output <outfile> <file>

Examples:

audiomix preview --duration 10 recording.mov
audiomix bake --fade-in 2 --fade-out 3 --output mixed.mov recording.mov