[sdiy] Combined output / headphone jack?

[Roman Sowa]

W dniu 2024-10-15 o 14:14, Mattias Rickardsson pisze:
> 
> Would be nice with a stereo pair of TRS jacks that could act both as
> - a stereo pair of unbalanced outputs (when two TS plugs are inserted)
> - a headphone jack (when a TRS plug is inserted in jack 1 and nothing 
> inserted in jack 2)
> - a mono jack (in jack 2 when nothing is connected in jack 1)
> - a stereo pair of [impedance] balanced outputs (when two TRS plugs are 
> inserted)   <-  this :-)
> 

That would require detecting the load caused by shorted Ring contact and 
then switching from 2-channel headphones mode to 1-channel ballanced 
mode based on that.
Why bother, if one extra jack only for phones solves it all.

Roman