A Flutter project that use ffmpeg to send PCM audio data through a websocked.
Be sure to have websocketd and ffmpeg installed (on Linux these packages are available using you package manager).
Also modify in main.dart the final audioPath to point to an audio file on you PC.
You can then choose which PCM audio data format you want to use and send through the websocket. There is also a slider to manage the flow speed of output packets. 0 means no limits, 1 means the packets are sent at 1x as the audio source.
Could happens that, when changing parameters, the websocketd process can't be killed and in the output window you see Can't start server: listen tcp :8080: bind: address already in use. Just hit the kill all websocketd and change some parameter.
PS: I just used and tested on Linux.