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More => Old Versions => Media Jukebox => Topic started by: Matthias on February 26, 2002, 12:54:36 am

Title: 24/96 upsampling
Post by: Matthias on February 26, 2002, 12:54:36 am
Is it possible to upsample Monkey's Audio encoded music to 24/96 in real-time using MJ on an Audigy??

TIA,
~Matthias
"My mind is glowing..."
Title: RE:24/96 upsampling
Post by: Trelane on February 26, 2002, 10:21:39 am
It would be possible, but useless. There's no quality gain and doing so on an Audigy would be bad (as it resamples everything back to 16 bit/48 khz... despite what Creative Labs says, it's not a "real" 24/96 card).
Title: RE:24/96 upsampling
Post by: KingSparta on February 26, 2002, 10:30:58 am
Trelane

Does Your Handle Come From A Star Trek Episode?

Episode 18, "The Squire Of Gothos" Stardate 2124.5

Airdate January 12, 1967
Title: RE:24/96 upsampling
Post by: Matt on February 26, 2002, 11:42:45 am
Well, it doesn't hurt to playback at 24-bit if your card supports it.  Just pick "Optioms-> Playback-> Playback Bitdepth" to change what bitdepth MJ plays at.

Also, I think upsampling / oversampling is probably best left to your DAC.  I'm not an expert on that though...

Take care.

-Matt
Title: RE:24/96 upsampling
Post by: Matthias on February 26, 2002, 12:09:24 pm
OK...I haven't bought the Audigy yet...so I will switch to an M-Audiophile 24/96 card.

Now, to my knowledge, if I play a 16/44.4 signal, the DAC on the 24/96 card will pass it along, without "dithering" the waveform...but that's what I want...I want to have the waveform smoothed out, because there are receivers that do it, and everyone says that there is a noticable difference in quality.  So, will MJ "dither" the signal?

Thanks,
~Matthias
"My mind is glowing..."
Title: RE:24/96 upsampling
Post by: Matt on February 26, 2002, 12:37:43 pm
CD's have already has been dithered when they were converted to 16-bit at the mastering studio.

I'm not really sure that more dithering (which is basically the addition of noise to add smoothness) will make the audio quality any better.

Also, wouldn't a DAC naturally dither the signal based on it's own noise floor?

From my experience, the soundcard isn't typically the weakest link in a stereo.  Your money may be better spent on a better amp or set of speakers.  Just my opinion though...

Take care.

-Matt
Title: RE:24/96 upsampling
Post by: Matthias on February 26, 2002, 05:51:04 pm
I do have good speakers, and a good receiver.

-Denon AVR 1602
-Home Theater Direct Level 2 5.1

To my knowledge, the soundcard does not dither...it just is able to pass up to 24/96 through its DACs.

~Matthias
"My mind is glowing..."
Title: RE:24/96 upsampling
Post by: Trelane on February 26, 2002, 06:31:56 pm
King Sparta:
It does, indeed Next Page
Title: RE:24/96 upsampling
Post by: K-Wood on March 01, 2002, 12:41:45 pm
I have several wav files (ripped from CD using EAC) that I have converted to 24/88.2 using Sonic Foundry Batch Converter.  Will Media Jukebox playback these files?  If so, how?
Thanks. . . .
Title: RE:24/96 upsampling
Post by: Smiler on March 01, 2002, 01:29:49 pm
K-Wood  if your sound card is capable of this sample rate and bit depth and has direct sound drivers then I would exspect MJ to play back ok.
What Card are you using?