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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Re: Jitter, DACs and jitter-free computer technology posted by that's, my name on July 27, 2006 at 15:39:43:
HowdyLike I said...
That clock isn't in the DAC OR you are doing asynchronous sample rate conversion on the PC which is mangling your bits.
There isn't a capability for a USB device to source a clock to the PC, hence without a separate clock line to the PC from the DAC the PC has to be the clock source.
If USB allowed multiple bus masters, this wouldn't be a problem, but it doesn't.
Here's an intro to USB: http://www.beyondlogic.org/usbnutshell/usb1.htm
Here's more details on what I was saying earlier about real-time audio hell on USB, i.e. either accurate bits or accurate timing but not both: http://www.beyondlogic.org/usbnutshell/usb4.htm
-Ted
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- Yep, but you still loose - Ted Smith 15:56:22 07/27/06 (0)
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