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Finally Going Digital Questions.

post #1 of 16
Thread Starter 
Over the last couple of years ive been running a 3.5mm jack from the back of my sound card to split RCA cables going to my receiver. Ive noticed that when I play audio through the computer (all lossess btw) that the detail is not as sharp and crisp as when it's coming off my CD Player> Receiver.

So I finally bought a new Yamaha RX-V371 which has optical ins.
I plan to now use my optical out of my motherboard hooked directly up to the new receiver.

Questions about my new setup:

1. Optical is Lossless correct? Since I rip all my CD-R's in apple lossess, there will be 0.00 THD untill it hits my receiver. Essentially its like hooking up a USB cable and putting audio through it right? : )

2. Compared to my cd player, my new setup "should" sound better now straight out of the computer, due to the fact that my cd player is hooked up via RCA cables and adds its own (VerY minuscule THD distortion)

3. Is my logic sound?
post #2 of 16
Quote:
Originally Posted by peck1234 View Post

1. Optical is Lossless correct?

If the source is lossless, yes. Optical can handle a data stream all the way up to the 96kHz/24bit linear PCM format.

Quote:


Since I rip all my CD-R's in apple lossess, there will be 0.00 THD untill it hits my receiver. Essentially its like hooking up a USB cable and putting audio through it right? : )

Yep.

Quote:


2. Compared to my cd player, my new setup "should" sound better now straight out of the computer, due to the fact that my cd player is hooked up via RCA cables and adds its own (VerY minuscule THD distortion)

If you hear any difference, it will be the CD player's analog output stage adding its own "sonic signature" to the signal. Which is also what will happen with the receiver's own internal analog output stage (part of its DAC section) leading to its power amp section. This is not a bad thing. Analog stages are easily "tuned" by an engineer and depending on the manufacturer's design philosophy, can have negligible to very audible impacts on the sound you finally hear. This is why CD players, dvd players, phono preamps, amplifiers etc can sound different from one another.

FYI: the last time I looked, the average human can't hear the effects of THD until it reaches nearly 3% (that's a full three, not a point three), so I wouldn't worry about that issue at all.

Quote:


3. Is my logic sound?

:thumbsup:
post #3 of 16
You probally want to take a look in the HTPC forum here (home theater pc) lots of good info. Once going digital there are a few steps to improve the output. What player are you using on the pc side? J. River and media monkey have the ability to use the WASPI output which bypasses the Windows audio filters straight to digital output. If not Windows adds another layer of proccessing before it gets to you AVR.
post #4 of 16
Windows still processes digital signals? Oops, I thought that was just the old versions like Windows ME and such.
post #5 of 16
If the volume control works, then digital is being resampled.
post #6 of 16
Thread Starter 
Quote:
Originally Posted by psgcdn View Post

If the volume control works, then digital is being resampled.

IE (So the Volume Will remain at 1 level via optical out correct?) Thus, I will control it through my receiver?
post #7 of 16
Right.
Just like a CD player digital output, for example.
post #8 of 16
Thread Starter 
Excellent. Thanks! I cant wait to finally hear all my lossless!!! : ))
post #9 of 16
I run all my lossless FLAC through an XBMC PC, is it changing it? Just curious.
I love my Revo pc...plays everything I throw at it...
post #10 of 16
Quote:
Originally Posted by wyowolf View Post

I run all my lossless FLAC through an XBMC PC, is it changing it? Just curious.
I love my Revo pc...plays everything I throw at it...

Sorry not familiar with that set up. You may have to change something in settings. Look for audio playback or something like that. Set to "WASPI" if that is an option.
post #11 of 16
Thread Starter 
Ok just got my receiver in today and hooked up my optical out. Problem is the volume conrol on the pc (is) working. Which means my audio is being re-sampled right? Or no? Also, when I hook up my cd player I can keep the reciever about -8DB lower than what I need to get the same volume level out of the PC?

On the good side, quality wise, lossless through optical puts the both my cd player and aux outputs to shame! So yay!!!

post #12 of 16
Thread Starter 
Bump on the question about volume control regarding the spdif.
post #13 of 16
I don't know why people said that the volume control shouldn't work. It works with my HTPC over HDMI. Maybe there is a way to disable it, but many applications have their own volume control, so I don't see how that's going to make a big difference.
post #14 of 16
Thread Starter 
Ya, I think it's a new technology with Digatol Voltage and Windows. IE (It's Still 100% lossless and convenient as hell)

Still I'll leave it at 100% and manage it from my reciever.
post #15 of 16
Quote:
Originally Posted by peck1234 View Post

Still I'll leave it at 100% and manage it from my reciever.

Exactly. And if you listen to a lot of music, you want Windows to be able to affect the volume if you have volume leveling enabled on your music media player. I want Windows to attenuate the volume for each song before outputting it to my receiver.
post #16 of 16
I'm not sure about the volume either, every configuration I've ever tried hasn't disabled control.

What media player are you using? Windows OS will perform some processing unless bypassed, which will require a plugin for the player. Google WASAPI or ASIO and your media player for more info.
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