Quelqu'un peut-il me renseigner au sujet de la connexion d'un ordinateur au DAC par liaison USB. Les prix varient étonnement. Un câble USB haute-fidélité a-t-il un sens ? Y-a-t-il une longueur optimale ou maximale?
Merci
There is a fundamental difference between the transfer of computer data and
digital audio signals. Computers are able to transfer digital data without loss, because the data moves in the robust form of blocks, which do not depend on specific timing between the sending and receiving devices. However, digital audio signals are continuous streams of data, which are quite fragile, since the digital processor must remain perfectly locked onto the timing of the signal to avoid data losses.
The Limitations of digital audio processors and cables create timing errors known as jitter, which remove portions of the audio signal and replace them with noise and distortion. Cables tend to round off the square waveforms of the signal, making them less clear to the processor, thus increasing jitter. This rounding effect varies greatly among cables and a truly superior digital audio cable can make great improvements in sound quality.
WireWorld digital audio cables utilize unique designs specifically developed to minimize jitter by providing sharper, cleaner leading edges on the digital waveform.The Platinum Starlight® employs the WireWorld's new, patent-pending DNA Helix™ conductor design, which uses six signal conductors – twice as many as other USB cables, arranged in an innovative symmetrical geometry that provides precisely balanced 90-ohm impedance, for performance that far exceeds the official USB 2.0 High Speed specification. The DNA Helix™ design maximizes transmission speed while minimizing noise, thus reducing digital jitter to provide substantial overall improvements in sound quality. Another special feature of the cable is a power conductor that is fully isolated from the signal conductors to preserve signal purity.
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