Win 7 Optimisations

[darrell]

No difference, in that his server tweaks still made a difference, so it must be those pesky bits, I presume.

So, confronted with the alternatives:

1. There are complicated (and widely studied and documented) psychological factors which might influence what one thinks one hears;

or

2. Previously unknown phenomena which fly in the face of established science are at play, in the operation of one of the most important technologies of the last decade, which is now the backbone of critical worldwide communications;

he chooses the second!

[m1abrams]

I am curious if his network is gigabit or not? If he is connected through a gigabit switch to the touch I wonder if he worries about the switch buffer and throttling that will happen since the touch is only a 100mbit device.

[SBGK]

I am curious if his network is gigabit or not? If he is connected through a gigabit switch to the touch I wonder if he worries about the switch buffer and throttling that will happen since the touch is only a 100mbit device.

not gigabit, 10/100 full duplex.

shall give the various suggestions a test and let you know. As other people have noted having the wireless running in the Touch affects the sound which is why I prefer ethernet, but shall try the wireless bridge again.

re 'The touch is only a 100 mbit device' the network chart shows it is only running at 12% capacity at initial start of the song and then runs at a lot less than that so looks like there are no capacity issues.

[adamdea]

Yes absolutel! which is why it is puzzling when sound checks says that server optimisations work for the touch audio stream in the same way that that do for gamers who are just trying to increase throughput for games that need prodigious data rate to work properly.

[evdplancke]

There is supposed to be...
But as discussed elsewhere, that would only block noise on the ground/earth line... High frequency Noise superimposed on the signal line(s) would still pass through the transformer into the Touch. What happens to that noise once inside the Touch is unclear...

Thanks Phil, you have reformulated my question in a concise and cristal clear way!

About galvanic isolation though I don't think shielded cables are galvanically isolated.

[Phil Leigh]

Thanks Phil, you have reformulated my question in a concise and cristal clear way!

About galvanic isolation though I don't think shielded cables are galvanically isolated.

Shielded cables can be galvanically isolated by connecting them via transformers or opto isolators.

[Phil Leigh]

In case anyone is interested, Chill hit the nail on the head earlier in this thread, when he described the "golden period" of buffer only playback, during which time the computer and network can have NO effect at all on replay quality.

If anyone on this forum believes that test is flawed because the damage has already been done and the bits in the buffer are wrong, then they are simply in denial of the truth. The bits cannot be wrong... They represent the bits from the disk, sent as bits inside IP packets. This is computer data processing and has NO audiophile issues with it. It works exactly the same way that every network I the world works and I think if there was a generic issue we would have heard about it by now...

Furthermore, the final nail in the coffin is the fact that both HDCD and wav-wrapped DTS playback perfectly.
Let's be clear on this; IF EVEN A SINGLE BIT WAS WRONG, DTS and HDCD would not decode properly.

So whatever people claim to be hearing, it has nothing to do with "the bits"

[evdplancke]

There is supposed to be...
But as discussed elsewhere, that would only block noise on the ground/earth line... High frequency Noise superimposed on the signal line(s) would still pass through the transformer into the Touch. What happens to that noise once inside the Touch is unclear...

To be exhaustive, I'd add there is another possible noise source: the processing noise of the NIC, that might depend of the pattern of the Ethernet transmission. Of course not altering the bits but possibly the digital to analog conversion inside the Touch or inducing jitter and adding hf noise to the signal of the digital ouput.

[Phil Leigh]

To be exhaustive, I'd add there is another possible noise source: the processing noise of the NIC, that might depend of the pattern of the Ethernet transmission. Of course not altering the bits but possibly the digital to analog conversion inside the Touch or inducing jitter and adding hf noise to the signal of the digital ouput.

True, but the NIC will be dormant if the cable is pulled so the test will still detect that

[soundcheck]

So whatever people claim to be hearing, it has nothing to do with "the bits"

Phil.

You're "again" wrong. And you never seem to understand.

A bit got a logical value AND a physical shape. (It's been even mentioned earlier in this thread)

For you as an IT person the logical value is obvisously the only thing you're interested in. That also explains your overall and "buffer" logic.

For me as an audio+it person I'm interested in the logical value AND the physical shape and conditions.
I can tell you that'll give you a much wider perspective.

Anyhow. I give it up on you. You doesn't seem to be able to cross your pretty narrow IT universe.


Enjoy.

P.S: 1. I consider the "plug the cable" test nonsense.
2. Since we discovered the server impact more than a year ago, we've
been running one server wireless.
Guess what. The server optimzation still made a difference.
Again. All stuff that I post has been verified on several systems
before I post it.