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USB audio transmission isn’t bit true


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29 minutes ago, beerandmusic said:

I am confident that you have a high power computer have optimized for noise

 

I am sorry Beer, but this is not so at all. I wouldn't even know how to accomplish that. It's actually the contrary, if anything. The current Audio PC we provide lacks filters towards the mains. All right, it's a Linear PSU in there, but still the filters should be there. They are not in order to increase "speed" (PSU response).

 

Yes, I am into controlling noise all over the place. But with USB not that I am aware of.

And btw, don't take my approaches for granted - I am just someone else. Or, someone else trying to convince you of the subject not being legitimate. :P

 

 

Lush^3-e      Lush^2      Blaxius^2.5      Ethernet^3     HDMI^2     XLR^2

XXHighEnd (developer)

Phasure NOS1 24/768 Async USB DAC (manufacturer)

Phasure Mach III Audio PC with Linear PSU (manufacturer)

Orelino & Orelo MKII Speakers (designer/supplier)

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15 minutes ago, beerandmusic said:

archimago found no errors with a $10 belkin cable and even with 50' extension cable....again, i would like to see if crc errors can be increased by injecting noise on system doing quad dsd processing.

 

Same here, if that is what you like to hear. Now trust me on not wanting to sell anything ... Why is it so that a single USB cable with different shielding options sounds totally different for each of such a configuration ? they ALL show now errors anywhere, which is the least YOU would expect. Right ?

So the sound of a USB cable is not about that. Probably it isn't even about the USB cable at all but merely about what it may cause to its environment. It also would nicely explain what otherwise is the most difficult to explain.

 

USB errors do not cause a different in SQ unless at a relatively high rate (like once or more per second). You will hear them though, as ticks or scratches or dropouts. That too is SQ related but it is not what you are talking about.

 

 

 

Lush^3-e      Lush^2      Blaxius^2.5      Ethernet^3     HDMI^2     XLR^2

XXHighEnd (developer)

Phasure NOS1 24/768 Async USB DAC (manufacturer)

Phasure Mach III Audio PC with Linear PSU (manufacturer)

Orelino & Orelo MKII Speakers (designer/supplier)

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  27 minutes ago, beerandmusic said:

again, i would like to see if crc errors can be increased by injecting noise

25 minutes ago, PeterSt said:

 

 

The answer is Yes.

 

 

So if crc errors can be increased by injecting noise, then, in a non-optimal solution (unlike yours), then it is feasible that there can be many crc errors dependent on how much noise in the system.  Cleaning noise is not always cheap...i see some threads talking about using Paul Hynes power supplies costing thousands. 

If noise can be isolated by running fiber between server and dac, this can be done very inexpensively comparatively.....not everyone has a lot of money.

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  34 minutes ago, beerandmusic said:

archimago found no errors with a $10 belkin cable and even with 50' extension cable...

22 minutes ago, PeterSt said:

 

Same here, if that is what you like to hear. Why is it so that a single USB cable with different shielding options sounds totally different for each of such a configuration ?

I would love to hear your answer...i don't know so i would love to hear your answer...my guess is that it minimizes noise some how, because I still haven't heard that there is anything besides music and noise being transferred to the dac. 

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10 minutes ago, beerandmusic said:

So if crc errors can be increased by injecting noise, then, in a non-optimal solution (unlike yours)

 

No. Only with flat tires.

 

Take a break or a burn-out will be yours. ;)

Lush^3-e      Lush^2      Blaxius^2.5      Ethernet^3     HDMI^2     XLR^2

XXHighEnd (developer)

Phasure NOS1 24/768 Async USB DAC (manufacturer)

Phasure Mach III Audio PC with Linear PSU (manufacturer)

Orelino & Orelo MKII Speakers (designer/supplier)

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19 minutes ago, PeterSt said:

 

It is the greatest misconception that fiber isolates noise. Keep in mind: the noise is not there to begin with (no matter you have wet dreams over it).

 

Why do people buy expensive power supplies like Paul hynes if there is no noise to begin with?  Even you said you use lps in your server?

So you are saying low power media converters have a lot of noise measured on them, like the one in picture? (more noise than a generic pc doing quad dsd upsampling w/stock ps?)

 

Truly trying to learn, and am listening.  My goal is to create optimal solution in very low budget, and am currently buying parts to create ethernet over fiber system, and using parts similar to ones suggested by Miska and Jabbr.

 

PS- i would 'take a break' if people quit replying (smile)...i am way past burned out on topic and even asked Chris to delete it a couple of times...

 

image.thumb.png.dee7e9f69ce7db2d8296fface5e83adb.png

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9 hours ago, mansr said:

Name one DAC using synchronous mode.

 My understanding is that the USB inputs of earlier Oppo players such as my Oppo 103 weren't Async. However, I could be incorrect about this, Async was mentioned in the blurb for the 105.

 The discussion at the attached link by Graham Slee may be of interest to some.

 

https://www.hifisystemcomponents.com/forum/isochronous-or-asynchronous_topic1887.html

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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14 hours ago, PeterSt said:

...The Lush USB cable we make, is not guaranteed beyond 3 meters and I actually don't like to sell even the 3 meters (ask @Teresa who owns (or owned) one of the two I ever put out). It deliberately voids the USB spec and thus this comes from it. Problem ? no, because it is anticipated...

 

Yes, Peter I am still using your 3 meter Lush USB cable. ?

 

In case anyone is interested in my listening impressions of it see USB audio cracked... finally! page 93

I have dementia. I save all my posts in a text file I call Forums.  I do a search in that file to find out what I said or did in the past.

 

I still love music.

 

Teresa

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13 hours ago, beerandmusic said:

Why do people buy expensive power supplies like Paul hynes if there is no noise to begin with?  Even you said you use lps in your server?

So you are saying low power media converters have a lot of noise measured on them, like the one in picture? (more noise than a generic pc doing quad dsd upsampling w/stock ps?)

 

Truly trying to learn, and am listening.  My goal is to create optimal solution in very low budget, and am currently buying parts to create ethernet over fiber system, and using parts similar to ones suggested by Miska and Jabbr.

 

Your questioning is like asking whether a computer program is a better one if something arbitrarily, randomly alters a bit of the code to junk, and the user can't then see the program crashing. What you want is for the audio system to work correctly under all reasonable conditions, and the USB connection is part of that system. So, work towards getting optimal SQ with whatever you happen to own; deliberately 'sabotaging' part of it to see if it "sounds worse" is pointless, really ...

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18 minutes ago, mansr said:

He's got the terminology all wrong (synchronous, asynchronous, and adaptive are all subtypes of isochronous endpoints). I wouldn't trust anything that man has to say.

 

 Who can you trust if you can't even trust well known E.Es  ?.:D

( He was originally a BBC Engineer before going into business for himself)

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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44 minutes ago, Ralf11 said:

this thread needs some frame-shift mutations...

 

 This thread, like most threads,  needs less mindless Ralf 11 gobbleydegook.

 They contribute NOTHING of value to the threads.

 

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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4 minutes ago, mansr said:

I don't care if he's the Pope himself. When he can't get basic terminology right, he loses all credibility.

That wasn't my point.

 Misinformation is spread by many Professionals.

 It then comes down to who can you trust, or is it because you need to source this information from Professionals who work specifically in these areas, and aren't Electronic " Jack of All Trades"  ?

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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42 minutes ago, sandyk said:

That wasn't my point.

 Misinformation is spread by many Professionals.

 It then comes down to who can you trust, or is it because you need to source this information from Professionals who work specifically in these areas, and aren't Electronic " Jack of All Trades"  ?

Regarding USB, the best source of information is the actual spec. It's free to download.

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31 minutes ago, yamamoto2002 said:

BDP-103's DAC will work with its own local clock when sound source is placed on USB memory.

 

 Thanks for the explanation.

I only use USB with my Oppo 103 from USB memory sticks, or occasionally a USB SSD.

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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15 hours ago, PeterSt said:

 

It is the greatest misconception that fiber isolates noise. Keep in mind: the noise is not there to begin with (no matter you have wet dreams over it).

Any noise which is there (DAC side) is created there. This is how fiber sounds the worst of all - it creates the most noise because it requires the most processing (to convert back to copper).

 

 

Proof that the fiberoptic (internet) does not isolate noise, rather lets it sail right through to our browser ;) 

Custom room treatments for headphone users.

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8 minutes ago, jabbr said:

 

Proof that the fiberoptic (internet) does not isolate noise, rather lets it sail right through to our browser ;) 

 

 And adds a little of it's own ?

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

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