Is jitter an issue with usb signals ?

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But then again usb peripherals only became popular after Apple used it on the original iMac to connect the keyboard and mouse.

Funny OT story: A friend of mine used to run a graphic design bureau and as such he was totally dependent on Apple (that was in the early '90s and MSDos/Windows machines lacked the ability and software) so when Apple was in danger of going under he supported them by using his savings to buy shares. To us it seemed insane at the time but he paid around $8-12 a share and now they are worth nearly $700 (Apple split the shares 7:1). He's retired now and has been for a while.
 
Thunderbolt is a retro-compatible upgrade of FireWire800.

FW is quite popular in pro circles and there are a LOT of DACs and ADCs using it because it is much more reliable than usb. I had my entire computer freeze up but the music still kept playing over FW without hiccups or drop outs.
The downside is that FW will always be more expensive than usb as it uses its own processor and is thus independent of the computers cpu.

Er no. You can buy a thunderbolt to firewire adaptor for £30. New Macs have USB3 and thunderbolt. Apple can giggle as they sell you pricey adaptors.

20 years ago there was a good reason for pros to use macs (midi). now days its fashion and habit and preferring one OS to another.
 
RJ45 is not a communication standard it is a registered form of a 8 pin modular connector... I don't understand your problems with USB, plug it in and it works, even multiple plug ins with the smallest connectors (mobile phone charging is reliable)...

Hi ! when i hear the snap of the rj45 i feel secure. Comfortable. Happy !
I like so much connectors with locking mechanism.
Like also bnc ... not start another fight.
Why the hell is not used anywhere for spdif ?
Why in the world someone has started using a connector RCA intend for analog signals with digital signals while bnc was already widely available ? why ???? are these people sane of mind ?
And then i hear of not correct impedance causing reflection and i understand hifi is a joke ... it is just a game. It is not a serious thing. 🙁
Bnc is cheap, is beautiful, it works perfectly ... maybe too much ?

As to apple, I tend to disagree somewhat with your view, rip off prices, re-badged Samsung phones... sorry not into apple worship or worship of any other electronics or electronics based companies, far to much mythic for my liking...🙂

i am not an applist ... but i feel the beauty of objects. And they are really something. They please the eye and the brain at the same time.
Have you seen the Mac Pro presentation ? just amazing ...
Regards, gino

https://www.youtube.com/watch?v=ZwC1m7Y66LM
 
PS: I've had two computers since 1995, both Apple.

The only thing that went wrong in 21 years is that one after-market Western Digital hard disk failed.
I've not been hacked and never got a virus despite the complete lack of firewalls or anti-virus software.
 
PS: I've had two computers since 1995, both Apple.

The only thing that went wrong in 21 years is that one after-market Western Digital hard disk failed.
I've not been hacked and never got a virus despite the complete lack of firewalls or anti-virus software.
So? I've never had a virus or been hacked on any windows machine I have owned. You are sounding like wanting to run through the standard apple lovers list of why apple is great. This is run out almost daily on theregister.

Hey my BBC micro from 1985 still works as well 😛
 
Why in the world someone has started using a connector RCA intend for analog signals with digital signals while bnc was already widely available ? why ???? are these people sane of mind ?
And then i hear of not correct impedance causing reflection and i understand hifi is a joke ... it is just a game. It is not a serious thing. 🙁
Bnc is cheap, is beautiful, it works perfectly ... maybe too much ?

This is not a problem with SPDIF, I have posted many simulations of the SPDIF interface through different connectors and impedance mismatches, it is NOT a problem with SPDIF, the signal will be as stable through a 75R BNC as it is through an RCA, why get so tetchy about things that are irrelevant. The problem with audio as I said recently is people get hung up about the wrong things or people promote views that are not backed up by reality... SPDIF interface is pretty robust and if a terminating resistor is used you can use damp string to pass the signal.....
So no reason to get tetchy over such things as I have said you need to learn to separate what will have a real effect on sound quality from what doesn't...
 
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Both apple and windows machines use the same processors and memory these days, the only difference is the operating system and both are slow and a bit dodgy, we have an old silicon graphics workstation in the office to run an old CAD system (Visula) 680 series processors and UNIX still keeps up with todays systems....
For photography I use an I7core loads of ram and a big disk 2x 2k monitors because I could afford it, whereas with apple I would only have been able to afford the mouse....
 
LOL cheers for the entertainment.....

I must say that few of your posts on fast digital decoupling I found useful - only because they contained the links to useful white papers...

however, I get the same thrills from most of your other very entertaining posts, that reveal that you will never be able to unlock the true potential of an audio system - simply because you let your beliefs stand in the way.
 
Quest for audio nirvana should include a good dose of empirical testing and experimentation. Why is it so hard for most of you hard core non-believers to try different USB cables and listen to the outcome / results?

Maybe because you’ll hear the difference straight away, and then have hard time explaining what just happened?
 
This is not a problem with SPDIF,
I have posted many simulations of the SPDIF interface through different connectors and impedance mismatches, it is NOT a problem with SPDIF, the signal will be as stable through a 75R BNC as it is through an RCA, why get so tetchy about things that are irrelevant.

Hi and sorry for the late reply 😱
This is a very interesting point for me. Actually there is a big discussion about bad digital connections introducing additional jitter.
Thanks again for the valuable advice. Now i am less worried.

The problem with audio as I said recently is people get hung up about the wrong things or people promote views that are not backed up by reality... SPDIF interface is pretty robust and if a terminating resistor is used you can use damp string to pass the signal.....
So no reason to get tetchy over such things as I have said you need to learn to separate what will have a real effect on sound quality from what doesn't...

this is a very important point. I guess the average level of education in electronics of the audiophiles is not that high.
But i have a goal now. Before the end of this year i would like to be able to measure noise of power supply without spending too much money for equipment. I have a sack of smps and i would like to select and keep the decent one noise wise.
I hope to be able to achieve that goal.
I think that a very low noise system is key for good music.
Thanks a lot again for the helpful advice on spdif transmission.
Kind regards, gino
 
Quest for audio nirvana should include a good dose of empirical testing and experimentation. Why is it so hard for most of you hard core non-believers to try different USB cables and listen to the outcome / results?

Maybe because you’ll hear the difference straight away, and then have hard time explaining what just happened?

If you are happy with an expectation bias driven upgrade path then go for it, but accept that you are not hearing a difference, just gaming your brain, which is easily fooled.
 
Quest for audio nirvana should include a good dose of empirical testing and experimentation. Why is it so hard for most of you hard core non-believers to try different USB cables and listen to the outcome / results?

Maybe because you’ll hear the difference straight away, and then have hard time explaining what just happened?

The facts of the matter though are that if the data gets through then all USB cables will sound the same, also if you put a USB hub in between (such as the uptone regen) then if the data gets through it will sound the same... Ignore noise, there are PC sound cards that achieve silly figures inside a PC fastened to the PC bus...
If the data gets through intact then ALL USB cables sound the same (and the data does get through, if it doesn't you know immediately because there will be drop outs etc.)
It also does not matter how many audiophiles claim to hear a difference, there isn't one with bit perfect transports...
 
Boky do you have a theory as to what may cause a possible audible difference in USB cables?

From the fact that such a cable transports just a bunch of numbers, and that when the numbers come across correctly in any but a pathological cable, how can the same numbers lead to different sound?

You must have thought about that?

Jan
 
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