Digital Coaxial vs Optical Toslink

Jun 4, 2005
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I'm looking into a new motherboard and it uses optical rather than digital which I have now. I'm wondering if at about 5 feet the quality would be better, worse or the same. I imagine there wouldn't be a difference at such lengths, but it never hurts to ask.
 

Googer

Lifer
Nov 11, 2004
12,576
7
81
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.
 
Jun 4, 2005
19,723
1
0
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

So it's pretty much impossible for optical to be better than coax?
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.
 

Googer

Lifer
Nov 11, 2004
12,576
7
81
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.

Well, I heard it straight from Jesus, care to doubt that?
 

Googer

Lifer
Nov 11, 2004
12,576
7
81
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.

Well, I heard it straight from Jesus, care to doubt that?

No doubt at all.
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.

Well, I heard it straight from Jesus, care to doubt that?

No doubt at all.

OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.
 

Googer

Lifer
Nov 11, 2004
12,576
7
81
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.

Well, I heard it straight from Jesus, care to doubt that?

No doubt at all.

OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

I don't doubt the bandwidth abilities of optical but high bandwith is not necessary for high resolution multichannel audio. At most it needs 2MB/s and any coaxial cable can handle that with ease.
I did say it is lossy and that refers to the plastic core fiber cables. I also mentioned the glass fiber cables are the exception and are very good at data transmission.

 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
Originally posted by: montypythizzle
Originally posted by: Googer
It has been said many times that optical cable is generally lossy and coax is virtually lossless. The exception to this is expensive glass fiber cables that are easily broken when flexed.

LOL, where did you get that information?!?!?!
They can/do carry the same information.
Optical is not as delicate as you say, just don't expect to bend it at a sharp 90* angle.

From a recording engineer and I have also seen it on a few websites.

Well, I heard it straight from Jesus, care to doubt that?

No doubt at all.

OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

I don't doubt the bandwidth abilities of optical but high bandwith is not necessary for high resolution multichannel audio. At most it needs 2MB/s and any coaxial cable can handle that with ease.
I did say it is lossy and that refers to the plastic core fiber cables. I also mentioned the glass fiber cables are the exception and are very good at data transmission.

You would be surprised how many fiber cables are indeed plastic.
 
Mar 11, 2004
23,444
5,849
146
What happens is that a lot of products use a poor quality device to convert the electrical signal into the optical signal, and then it has to be converted back (by probably another low quality part).
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: montypythizzle
OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

Toslink has bandwidth of 10 Mbs. That's pretty pathetic in all honesty. You can't compare toslink to communications - completely and totally different things.

Coax has much, much higher bandwidth from a physical medium standpoint than optical and that matters in digital transmission. You need to remember that digital is really analog.

Coax IS better than toslink.
 

cmdrdredd

Lifer
Dec 12, 2001
27,052
357
126
Originally posted by: spidey07
Originally posted by: montypythizzle
OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

Toslink has bandwidth of 10 Mbs. That's pretty pathetic in all honesty. You can't compare toslink to communications - completely and totally different things.

Coax has much, much higher bandwidth from a physical medium standpoint than optical and that matters in digital transmission. You need to remember that digital is really analog.

Coax IS better than toslink.

But the information is exactly 100% the same. Therefore you do not get any benefit using one over the other.
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: cmdrdredd
Originally posted by: spidey07
Originally posted by: montypythizzle
OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

Toslink has bandwidth of 10 Mbs. That's pretty pathetic in all honesty. You can't compare toslink to communications - completely and totally different things.

Coax has much, much higher bandwidth from a physical medium standpoint than optical and that matters in digital transmission. You need to remember that digital is really analog.

Coax IS better than toslink.

But the information is exactly 100% the same. Therefore you do not get any benefit using one over the other.

:thumbsup:
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: cmdrdredd
Originally posted by: spidey07
Originally posted by: montypythizzle
OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

Toslink has bandwidth of 10 Mbs. That's pretty pathetic in all honesty. You can't compare toslink to communications - completely and totally different things.

Coax has much, much higher bandwidth from a physical medium standpoint than optical and that matters in digital transmission. You need to remember that digital is really analog.

Coax IS better than toslink.

But the information is exactly 100% the same. Therefore you do not get any benefit using one over the other.

True, the payload is exactly the same. The benefit comes from a higher bandwidth cable and less jitter because of it. This isn't the idiot "it's digital it either works or it doesn't" because that simply isn't true. This aspect has everything to do with jitter and clocking.
 

cmdrdredd

Lifer
Dec 12, 2001
27,052
357
126
Originally posted by: spidey07
Originally posted by: cmdrdredd
Originally posted by: spidey07
Originally posted by: montypythizzle
OK then
Optical has bandwidth capabilities that dominate copper in networking, whether that pertains to audio isn't up to me. Copper can also suffer from ground loop problems as well.

Toslink has bandwidth of 10 Mbs. That's pretty pathetic in all honesty. You can't compare toslink to communications - completely and totally different things.

Coax has much, much higher bandwidth from a physical medium standpoint than optical and that matters in digital transmission. You need to remember that digital is really analog.

Coax IS better than toslink.

But the information is exactly 100% the same. Therefore you do not get any benefit using one over the other.

True, the payload is exactly the same. The benefit comes from a higher bandwidth cable and less jitter because of it. This isn't the idiot "it's digital it either works or it doesn't" because that simply isn't true. This aspect has everything to do with jitter and clocking.

You get the same 5.1/6.1/7.1 signal regardless. Can you hear a difference? Cause my receiver doesn't know the difference.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
You're receiver wouldn't tell you. YOU DO NOT GET THE SAME SIGNAL. I don't know how to get this through peoples heads. Hook up a spectrum analyzer and measure the jitter of a toslink transmitter and cable. You wouldn't like the results.

Yes I can hear a difference. You can also measure this difference with test equipment.

-edit-
what I mean is you receive the frames, but those frames have clocking differences in them (jitter). This is measurable with toslink, not measurable with coax.
 

cmdrdredd

Lifer
Dec 12, 2001
27,052
357
126
Originally posted by: spidey07
You're receiver wouldn't tell you. YOU DO NOT GET THE SAME SIGNAL. I don't know how to get this through peoples heads. Hook up a spectrum analyzer and measure the jitter of a toslink transmitter and cable. You wouldn't like the results.

Yes I can hear a difference. You can also measure this difference with test equipment.

-edit-
what I mean is you receive the frames, but those frames have clocking differences in them (jitter). This is measurable with toslink, not measurable with coax.

You mean to tell me that your ears are so tuned that you can actually tell what hookup method is used? You're full of shit.
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
LOL!!!
It doesn't matter how you hook it up, you will get the same DD or DTS signal.
Troll.
Please hook it up to your spectrum analyzer and send us the results.
If not then please disregard this thread.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: cmdrdredd
Originally posted by: spidey07
You're receiver wouldn't tell you. YOU DO NOT GET THE SAME SIGNAL. I don't know how to get this through peoples heads. Hook up a spectrum analyzer and measure the jitter of a toslink transmitter and cable. You wouldn't like the results.

Yes I can hear a difference. You can also measure this difference with test equipment.

-edit-
what I mean is you receive the frames, but those frames have clocking differences in them (jitter). This is measurable with toslink, not measurable with coax.

You mean to tell me that your ears are so tuned that you can actually tell what hookup method is used? You're full of shit.

No, just can tell a difference between the two. Tell me then why don't studios use toslink?
 

cmdrdredd

Lifer
Dec 12, 2001
27,052
357
126
Originally posted by: montypythizzle
LOL!!!
It doesn't matter how you hook it up, you will get the same DD or DTS signal.
Troll.
Please hook it up to your spectrum analyzer and send us the results.
If not then please disregard this thread.

While one may be inherantly less "lossy" that doesn't mean that you're losing anything. That's the point, you get the same thing either way. Coax isn't very highly supported either. Many DVD Players and devices don't even use this method of connection.
 

cmdrdredd

Lifer
Dec 12, 2001
27,052
357
126
Originally posted by: spidey07
Originally posted by: cmdrdredd
Originally posted by: spidey07
You're receiver wouldn't tell you. YOU DO NOT GET THE SAME SIGNAL. I don't know how to get this through peoples heads. Hook up a spectrum analyzer and measure the jitter of a toslink transmitter and cable. You wouldn't like the results.

Yes I can hear a difference. You can also measure this difference with test equipment.

-edit-
what I mean is you receive the frames, but those frames have clocking differences in them (jitter). This is measurable with toslink, not measurable with coax.

You mean to tell me that your ears are so tuned that you can actually tell what hookup method is used? You're full of shit.

No, just can tell a difference between the two. Tell me then why don't studios use toslink?

because it's cheaper maybe? Hell if I know and why should I care? I am getting the same Dolby Digital or DTS signal as you get. Regardless of what you think you know, the quality is the same on the listening end.
 

montypythizzle

Diamond Member
Nov 12, 2006
3,698
0
71
Originally posted by: cmdrdredd
Originally posted by: spidey07
Originally posted by: cmdrdredd
Originally posted by: spidey07
You're receiver wouldn't tell you. YOU DO NOT GET THE SAME SIGNAL. I don't know how to get this through peoples heads. Hook up a spectrum analyzer and measure the jitter of a toslink transmitter and cable. You wouldn't like the results.

Yes I can hear a difference. You can also measure this difference with test equipment.

-edit-
what I mean is you receive the frames, but those frames have clocking differences in them (jitter). This is measurable with toslink, not measurable with coax.

You mean to tell me that your ears are so tuned that you can actually tell what hookup method is used? You're full of shit.

No, just can tell a difference between the two. Tell me then why don't studios use toslink?

because it's cheaper maybe? Hell if I know and why should I care? I am getting the same Dolby Digital or DTS signal as you get. Regardless of what you think you know, the quality is the same on the listening end.

Another :thumbsup:
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Oh well, just trying to present information so people are aware and informed. Keep up with your "it's the same", "it's just digital" beliefs.
 
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