post #31 of 36
4/17/07 at 11:11am
Sure, if your speakers/phones can do it (most can't, my HD650 can, but who cares, I listen to 44.1/16)
Sharp SM-SX300 1-bit Amplifier
11.2 MHz sampling
I don't know if the it's only the digital amp that samples 11.2MHz or if the DAC also goes that high, or if there's any difference in concept between the dac and the amp in here.
Sampling rate directly dictates the maximum frequency available for PCM i.e most standard CD systems - 44.1khz sampling rate dictates that the highest frequency that can be returned is 22.05khz i.e 1/2 the sampling rate - on some(most) systems the cutoff is pragmatically set a little lower i.e 20khz.
Bit-depth i.e 16 or 24 dictates resolution i.e the maximum no of discrete signal levels that can be rendered (for PCM systems) .
So a 16/44.1 system will give you roughly 20 - 20k with each sample having a range of 0000000000000000 to 1111111111111111 i.e 0 - 63535.
|It basically says that upsampling to 192 is bad because it gives more work for the DAC to do and hence, more room for error.|