HLAE + FFMpeg always uses ipcm audio format

[boytunp]

Whatever I pass as an audio codec, HLAE never really uses it and output video file's audio codec always ends up with ipcm. I suspect this is due to mirv_streams record startMovieWav 1 command to HLAE here which I guess creates a wav file. Is there any way to make HLAE use an audio codec?

[akiver]

I don't think so, even the game only support wav.
You could try to ask on the HLAE GitHub repo or Discord.