Patrick Dixon;130969 Wrote: > > You might like to think of it in relation to what happens at the DAC; > the digital signal is converted to an instantaneous analogue level at > the sampled points, and then held (and filtered) to give a continuous > analogue signal. But the signal between the precise sampled points (in > the analogue domain) is not 'invented'.
If you upsample from 44.1khz to 96khz, there are now 2.17687x more data points than in the original sample, and only one of those data points per second is identical to a single data point in the original sample. > Maybe in concept it's even akin to FLAC compression; when you decompress > from FLAC to WAV you get more data samples, but you're not 'inventing' > data - the information is all in the original compressed FLAC file. It's not the same at all. FLAC is decompressed at play-time to the exact original data set from the original sample. Upsampling increases the data set to 2.17687x the number of data points at a mathematical precision of 24-bits, and every one of those new data points is fed to the DAC for analog conversion. -- PhilNYC Sonic Spirits Inc. http://www.sonicspirits.com ------------------------------------------------------------------------ PhilNYC's Profile: http://forums.slimdevices.com/member.php?userid=837 View this thread: http://forums.slimdevices.com/showthread.php?t=26685 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
