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In Reply to: Re: How do these modded USB Dacs really work? posted by audioengr on October 28, 2004 at 16:47:07:
I understand that but why would you want to use a push model to begin with.All the translations USB -> S/PDIF - S/PDIF - I2S - DAC would not really matter if the only clock that matters is the one that drives the DAC. Fundamentally the clock of the dac would determine the (presumably very stable) rate at which the audio data is converted. The clock of the I2S and S/PDIF links would be directly derived from this master and run completely synchronously.
The USB / S/PDIF chip would simply use flow control back to the PC to always have enough data in the buffer to maintain an uninterupted flow.
This setup could achieve the highest possible conversion quality at very low cost.
The USB solution outlined in the earlier post is a way to connect a DAC directly to a USB port but as far as I understand has no great benefit to the jitter problem.
Cheers
Thomas
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- Re: How do these modded USB Dacs really work? - ThomasPf 20:16:57 10/28/04 (0)
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