rjplummer;150288 Wrote: > Careful design really doesn't have much to do with it. It's all about > having 8 spare bits. I realized that I wasn't thinking in stereo, so > 0.5dB would be 0.25dB/channel. So you could drop the volume much more > before you lose bits. > > > > DACs convert numbers into voltages, so every bit does equal 3dB > (Actually 3.010...dB). That's why people talk about CDs as having a S/N > ratio of 96dB (16 bits x 2 channels x 3dB). If there's anything > "carefully designed," it would be that each volume increment > corresponded to .0502dB (1/6 of a one-bit drop) rather than precisely > 0.5dB. But this would be the easiest way to implement it. > > Of course at some point you have to worry about the noise level of the > circuit between your SB and pre-AMP. But that doesn't have anything to > do with the digital attenuation.
Calculation of dynamic range has nothing to do with the fact that it's stereo (or a multichannel system would have enormous dynamic range!): http://en.wikipedia.org/wiki/Decibel#6_dB_per_bit -- P Floding ------------------------------------------------------------------------ P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=28834 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
