Bug with FLAC ?

Posted by: mige0 on 27 August 2011

Anybody knowing if there already is a firmware update for the Uniti / UnitiCute to solve the sound quality issue (more or less MP3 quality) when playing FLAC?

If there isn't any at the moment, anybody to know when this possibly to be awaited or any suggestions for a workaround (Qnap NAS, Twonky)?

Michael
Posted on: 28 August 2011 by mige0
My hardware is already selected - no NDX nor NDAC in the pipe.

The SW for upsampling was dbpoweramp (Windows) and SoundConverter (Ubuntu).
Any SW suggestions besides those two to check out ?

DbPoweramp offers different dithering methods when going 24bit - rectangular and triangualr - which one to prefer?

Michael
Posted on: 28 August 2011 by mige0
@ Simon-in-Suffolk

Interpolation "errors" may be a minor issue compared to reconstruction filter issues.
At least this is what I think my ears try to tell me .


Michael
Posted on: 28 August 2011 by Simon-in-Suffolk
Michael, possibly, I thinks it fair to say you are tweaking rather than remedying issues, but as I say elsewhere ( which is what I think you might be eluding to ;-) ) going from digital to analogue is not an exact process and is more an art than a science, and so there is no one right way of doing it in the real world, as its a case of balancing compromises, which of course is great for audio equipment  manufacturers as we see, and great those of us who want to experiment with as you are finding out ;-)

The interpolation I was referring to was in the time domain,  but as far as going from 16 to 24 bits I would use what ever method sounds best for you as it is subjective. I don't have a preference as i dont modify the PCM before sending to the NDX. Let us know how your experiments develop.
Simon
Posted on: 29 August 2011 by likesmusic
Originally Posted by mige0:

DbPoweramp offers different dithering methods when going 24bit - rectangular and triangualr - which one to prefer?

Michael

I think you only need to worry about dither when you are reducing bit depth. When going the other way, say from 16 to 24 bit, you don't want any.