Tvheadend

I need to force the audio to encode on videos to standard aac. Some streams are AAC-HE. I have this working using a pipe command (pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec copy -acodec aac -metadata service_provider=TVE -metadata service_name=Service01 -f mpegts -tune zerolatency pipe:1).

However, I want to do it with the a stream profile. Is it possible for force the audio to re-encode to aac via stream/codec profile?