[candrian]

Is it able to e.g. launch a script or batch file (windows 10) when stereo is played ? I want to switch my equalizer apo config

interresting for me is this feature: "option to automatically select a profile based on audio codec/number of audio channels used in stream"

I  have a similar setup (Win 10 + Equalizer apo, 2.1. setup for stereo music and 5.1. video) and did this:

1. Create 2 profiles with Audio profiles addon:
  - "5.1. Video" channel 5.1., stereo upmix NO
  - "2.1. Stereo" channel 2.1., stereo upmix YES

2. Auto Switch all video to "5.1. Video" and all music to "2.1. Stereo"

3. config.txt in APO EQ

# Dolby Pro Logic II Stereo upmix
If: inputChannelCount == 2
Copy: L=0.5*L R=0.5*R C=0.354*L+0.354*R LFE=0.354*L+0.354*R RL=-0.436*L+0.245*R RR=0.245*L+-0.436*R
EndIf:

Comments:
APO EQ is able to recognize only 2 or more than 2 channels. The music signal arrives with 3 channels (= no change), the video signal with 2 (= Dolby Logic upmix) or 6 channels (= no change).
btw: This logic above is the Dolby Pro Logic II Stereo logic.

The result?
Music runs with Stereo and Subwoofer (3 channels), Videos with 5.1.....if the signal is 5.1. than there's no change, if the video signal is stereo the upmix jumps in.
During 5.1. movies the 2.0 commercials jumped to the Dolby logic and then back....

That setup works for me quite well.