Is it advisable converting 24bit 44.1kHz to 24 bit 96kHz?

Posted by: Consciousmess on 22 February 2018

Yes I know the storage volume increase, but it’s nice when the nDAC lights up HD, so visually, I like it, and if the placebo is there, so be it. The illusion of sound is already there...

But I ask in case the wise amongst you point out I am introducing noise to the signal, perhaps occasional interference like a defined radio??  I want to avoid that as the benefit of the HD light would be eclipsed substantially!

Posted on: 22 February 2018 by engjoo

Perhaps additional noise coming from the nDAC LED ? Just joking but I am not a believer in upscaling.

Posted on: 22 February 2018 by T38.45

very easy: if it sounds better it is better ;-)

 

Posted on: 22 February 2018 by David Hendon

Of course upscaling doesn't add new information, so it can't actually be better and as the nDAC will think its handling a real 96 kHz file when it isn't, it might actually sound worse.

If it were me, I would minimise the amount of processing, but as T38.45 says, if it sounds better that way to you, then fine.

best

David

Posted on: 22 February 2018 by Huge

David's answer is correct.

The degradation of information will be slight, but it will be there.  As 96 is not a multiple of 44.1 some of the existing sample values will have to be altered and an additional layer of dither will have to be added.

Posted on: 22 February 2018 by Richard Dane

Yup, if you really want to try upsampling your 44.1kHz files then better to pick a perfect multiple such as 88.2kHz to avoid sample rate conversion problems.  I think this should activate the HD light for you.  But listen and see which you prefer.

Posted on: 22 February 2018 by Consciousmess

Aha thanks - that’s helped!

Posted on: 22 February 2018 by Blackmorec

A few months ago I had a demo of a pair of YG Carmen IIs driven by AVM electronics. We were playing standard CDs and I really wasn't particularly liking the sound, which had that slight digital 'sting in the tail'. I complained to the dealer who switched on the amplifier's upsampling (The AVM has CD transport, DAC and amps in a single box). The music immediately changed...gone was the digital sting, replaced by nicely resolved 'air' which is basically the acoustic associated with each instrument and especially voice. My conclusion at the time was that the digital distortion I was hearing with standard 44.1 KHz processing was unresolved signal which resolved into additional information in the 192 KHz upsampled version.  I know the theory....in practice the upsampled signal was a lot better, far more musical, less digital.... in the context of the system I was listening to of course.  

Posted on: 22 February 2018 by David Hendon
Blackmorec posted:

A few months ago I had a demo of a pair of YG Carmen IIs driven by AVM electronics. We were playing standard CDs and I really wasn't particularly liking the sound, which had that slight digital 'sting in the tail'. I complained to the dealer who switched on the amplifier's upsampling (The AVM has CD transport, DAC and amps in a single box). The music immediately changed...gone was the digital sting, replaced by nicely resolved 'air' which is basically the acoustic associated with each instrument and especially voice. My conclusion at the time was that the digital distortion I was hearing with standard 44.1 KHz processing was unresolved signal which resolved into additional information in the 192 KHz upsampled version.  I know the theory....in practice the upsampled signal was a lot better, far more musical, less digital.... in the context of the system I was listening to of course.  

Interesting and this points up that with electronics you don't know (and maybe with electronics you do know too), you can't be sure that it handles all the different bit rates equally well.

But anyway it's a good demonstration that you need to listen and then decide which you prefer.

best

David

Posted on: 22 February 2018 by ChrisSU

Why mess around lighting up a silly little LED when you could go the whole hog and get one of these!

(Unfortunately, Naim never put them into production for some reason.)