Converting sample rate for specific devices

[simbun]

It's not possible to create renderer profiles I'm afraid.

MinimServer can offer multiple streams for the control point to choose between (based on the renderers support which it communicates with the control point) but I don't think this information extends to sample rate, it's typically what codecs they support.

I tried this with:

Code:

flac(88):-/wav;48

This tells MinimServer for all FLAC tracks with a sample rate of 88000 Hz to not only present the original track but also a resampled stream of 48000 Hz.

Looking at 'Show Metadata' for that track in BubbleUPnP I see both streams, one FLAC at 88200 Hz and a WAV at 48000 Hz but unfortunately it sends the 88200 Hz to Sonos, which is unplayable.

Instead of having the BubbleUPnP app do the transcoding you could use BubbleUPnP Server which has much the same functionality. Not only will it do the transcoding but it will also hold the playback queue so you'll be saving even more battery life!
Unfortunately there is no DSM 7 package so you'll need to install it using Docker which is a bit more involved.

EDIT: Another option would be to configure multiple MinimServer profiles, one for Sonos (that performs the resampling) and another without, but you can't have them both active at the same time so you would need to switch between them.