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In Reply to: RE: Read the link I provided posted by E-Stat on January 25, 2020 at 06:50:54
I mention Nyquest in an attempt to bound the discussion to reality. Inevitably someone will come along and say "Well Nyquest says...." and proceed to incorrectly cite Nyquist.
ALL digitization schemes lose some of the original audio content and the overwhelming majority of discussions of digital music are blind to this fact. The terms "lossless" and "lossy" are misleading. NO digitizing method records 100% of the original music.
In my work I use a 10 Gs/sec digitizing O'scope to look at 1 MHz waveforms. That is 4 orders of magnitude greater than the original waveform. I find it to be sufficient for my work even though some portions of the original waveforms are lost. To compare that to audio, the harmonics of some instruments can extend high 10's of kilohertz. Ignoring the mixing that will occur, to sample 4 orders of magnitude higher than 100 kHz would require a 1 Gs/sec sampling rate. I am not aware of any digitization method used for audio files that high.
Am I asserting that MQA is "good", or "sufficient" or excellent"? Nope. I am asking questions and participating in a discussion and appreciate your input.
Edits: 01/26/20Follow Ups:
The terms "lossless" and "lossy" are misleading.
Perhaps to you. It simply means you cannot return the recording to the originally captured signal.
I am asking questions and participating in a discussion and appreciate your input.
Lossy formats were useful ten years ago. I stream 192/24 losslessly via Qobuz and store similar formats on my NAS. Further, all the signal processing in the MQA chain changes the tonal balance.
I share mastering engineer Brian Lucey's opinion :
"Let's just sell the 24 bit files at the mastering session sample rate, not higher and not lower, and call it a day?"
Yes, the original recording cannot be completely recreated from a digital file, be it "lossy" or "lossless".
using bit perfect codecs.
MQA cannot even approach that dithering 24 bit content to 17. Why choose to arbitrarily throw away anything ?
To each his own I guess. My approach is the diametric opposite - my system building steps have been to retain as much information found in recordings as possible.
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