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USB кабеля для Аудио: влияние, тесты, советы
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alexsandr
Ветеран
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RE: USB кабеля для Аудио: влияние, тесты, советы / 15-03-2012 22:12
Вот полный текст:
"Why is there any sound degradation ? it all depends on signal quality. In USB-audio the computer sends the data to the USB-DAC in datapackets.
If the DAC receives error/missing packets there is only a very small timeframe during what the DAC can tell the computer to re-send the packets.
If this timeframe is passed, the music is played without these packets and this degrades the soundquality. USB-Audio transfer is a completely different thing as USB-data transfer.
Ferrite
Ferrite rings/beads have to be avoided, as they affecting the highs. Because they filter in same frequency bandwith as the transmitted USB-audio datastream.
USB signal quality
Digital Audio signal cables for USB. Just because it is a USB-signal, it is not automatically resistant against signal-alteration due to different influences! The trivial argument: that is digital, so 0 or 1, yes or no, there can nothing be wrong, is a statement in general only made by users who have no own experience in developing digital- or data-technology.
The development of best USB-cables requires appropriate measuring equipment, where signal-problems can be detected and on construction level and proper material selection nearly be eliminated.
Even here: the ear is also a development tool.
USB Signal Measurements
If we find the time, we will publish here some screenshots and measurement protocols of USB-signals. Professional USB-developers will explain the results in an understandable manner. We will compare and analyse standard USB-cables with AQVOX USB-cables.
To be honest: for our experience, the audible differences between USB cables can be huge when it comes to audiophile standards. The AQVOX USB cable sounds very open, transprent and natural, without any harshness. Our customers can go sure, that the AQVOX highend USB cable is made of the very best materials, provides maximum soundquality. A good hifi set will reveal the advantages of a good USB connection. The sound improves over the complete frequency bandwidth and in all aspects.
Just try it !"
http://www.aqvox.de/cable.html
(Отредактировал 15-03-2012 в 22:17 alexsandr.)
Музыка образует середину между мыслью и явлением. (Генрих Гейне)
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RE: USB кабеля для Аудио: влияние, тесты, советы - alexsandr - 15-03-2012 22:12
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