usualsuspects Wrote: > The datasheet for the PCM1748 (DAC used in SB2) is 24bit/96khz. I see > that the 16 to 24bits resampling is being done, but could the SB2 also > be made to do 44.1 to 88.2khz and 48 to 96khz upsampling? Or is it > already doing that?
We feed the DAC at 44.1/48. I don't think there is any advantage to upsampling before the DAC, as the DAC does this anyway (8x oversampling for the digital filter). Keep in mind upsampling (aka oversampling) is the same as "digital zoom" in a camera - it doesn't add any new information. The DAC does it internally in order to apply a sharper/better/cheaper filter than can be achieved with analog passives. Would be more interested in 88.2/96KHz support for those native file formats. I haven't yet looked at what all it would take to go to 96KHz - obviously clock rates, data rates, and CPU cycles double all over the place. It's not outside the realm of feasibility though. -- seanadams _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
