On Sunday 17 July 2011 18:57:59 Grant wrote: > Does anyone know if USB DACs use any sort of internal buffer or if the > data they receive is converted the moment it is received? First, usb is a packet based transport where (additionally) multiple devices have to share the transmission time. So there will be buffers. Second, the dsp in the device will probably talk to the adc/dac via a serial connection (probably i2s) so there have to be buffers again. And the pc is not made for continous stream processing but also uses blocks of audio. So there are buffers there as well. Have fun, Arnold
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