Transcoding down

[Pastim]

(04-03-2015 22:56)simoncn Wrote:  

(04-03-2015 22:46)Pastim Wrote:  Thanks very much indeed. I had a few attempts to install MinimServer 60 but it took eventually.

I do (inevitably - sorry) have a question.

I can't specify flac:wav24;192/wav24;96 (it is rejected), and so I assume that I have to set the transcoding to suit the least capable renderer that I have. Is that correct?

This is a bug and I will fix it in the next update. Thanks for letting me know about this.

Quote:I tried flac:wav24;192/wav16;96 but that didn't work on my Marantz. Could that be the fault of the CP not checking the renderer capability well enough?

This is a difficult area because the control point is unlikely to have enough information to know that the Marantz can't play a 24/192 WAV stream. The standard UPnP protocol enables the renderer to say whether it can play WAV, but that's as far as it goes.

The situation is better if the renderer supports LPCM (L16 or L24). In this case, the UPnP protocol does allow the renderer to tell the control point exactly what sample rates it can handle.

To check this out, you might like to try:

flac:L24;192/L16;96

I checked the Marantz spec with UPnP Inspector. It says it does up to L16;48. So I set the transcode to just "flac:L16;44" for a base-level test. That works with CD quality tracks, and with better ones such as 24/96, but not 24/192. That also seems to be the same when I just use the controls on the Marantz (cutting out any CP effects).