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my DVD player coax out sounds better then my computer. WTF!

post #1 of 6
Thread Starter 

here is a quote I read on diyaudio and struck me as odd... until I try:

Recently, I discovered that the s/pdif outputs of all my audio interface devices are a lot inferior to the digital output from my Philips universal dvd player ($90).

The Philips makes the sounds better in every aspect, particularly cleaner, from having less noise / jitter. You can easily hear differences from a headphones set. My reference system includes the OMZ DAC/HEADAMP/PREAMP and the JVC DX1000 cans. The interface devices I tested include:

1. M-Audio Firewire Solo <= sounds the same as to the USB version
2. M-Audio Audiophile USB <= cheaper than the Firewire version
3. Creative 5.1 Live!! USB <= the noisiest s/pdif output 
4. Creative Audigy2 PCI card
5. On-board optical s/pdif <= the second lowest rank
6. Philips universal DVD player

A friend of mine even re-comfirmed my discovery by transferring his lossless music files to a CD for testing. He was so surprised by the differences 

I doubt that there exists a perfect s/pdif audio interface on a computer. Now I'm back to an old-fashioned machanical transport, for the best reproduction.

Someone said to me "That's what a Mac is for". Another one said "Get the $1,299.99 RME Fireface 400 or the $185 ESI Juli@ card". But I'm very doubtful about them too. 

The CD/DVD transport technology has become very well known, and the components have been mass production for years. you can proove this yourself by watching Spider Man 3 with 5.1 DTS sounds at home, using any universal DVD player (bundled with your HT system)."

 

 

 

Do anyone solved this problem. The difference are so huge is like passing from low-fi to mid-fi for fuck sake!

post #2 of 6

Sooo, are you complaining about onboard sound? I think all onboard sound is pretty bad by audiophile standards no matter what kind of interface you use. 

post #3 of 6

Despite some people around here claiming jitter is not audible, it is. However, it is not a "huge" difference.

 

In this case, I strongly suspect your problem is resampling. What software are you using? It is very likely Windows/DS/drivers are (crappily) resampling your audio.

post #4 of 6

It's not jitter, more likely computer noise or the fact that the all the dvd has to do is play a disc where a pc has hundreds of other tasks going on. I have a phillips cd630 and my pc dac is a fiio E7/E9 combo they sound a bit different but i don't think 1 is better than the other, the fiio has a bigger soundstage, the cd player sounds more analog and crisp , theres not much between them.

post #5 of 6
Thread Starter 

Okay, I have foobar with asioforall, and I use a m-audio firewire 1814.

 

The spif out of my sound card compared to the one of a cheap dvd player is quite shocking. The difference in clarity is really big. With the computer, their is a sort of veil around the sound, but with the cd player, its a whole new level of fidelity.

 

 

I have read a lot about the matter, and their can have big difference of spdif output, it all comes from the clocks that control the spdif out.

 

I'm going the cd player route, no more computer in the equation.

post #6 of 6



 

Quote:
Originally Posted by murphythecat View Post

 

I have read a lot about the matter, and their can have big difference of spdif output, it all comes from the clocks that control the spdif out.

 

 



I've read about some DAC's that are specifically designed to be used with computers for this reason.  By using a USB cable instead of a S/PDIF they can force the computer to use a clock that's built into the DAC to accurately control the digital output stopping any jitter from occurring

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