Recording the mix
Click the ● record button in the transport bar to capture the live mix. Recording uses MediaRecorder tapping a parallel MediaStreamAudioDestinationNode — everything coming out of the master bus, post-compressor.
- Click ● to start. The button pulses pink and a timer appears.
- Click ● again to stop. The file downloads as
sonyk-<timestamp>.webm.
TipTo convert a WebM file to WAV / MP3, run it through ffmpeg:
ffmpeg -i sonyk-1234.webm -c:a pcm_s16le sonyk.wav.