JHDarkLeg
JHDarkLeg t1_j20l4ze wrote
Reply to comment by PossibilitySuperb465 in Wiil CD's make a comeback like Vinyl? by trukises
>all digital formats are lossy by comparison
https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem
Digital isn't lossy within the Nyquist bandwidth, it's mathematically provable. CDs do not utilize lossy compression algorithms like DVDs do.
JHDarkLeg t1_j20jvi0 wrote
Reply to comment by scavengercat in Wiil CD's make a comeback like Vinyl? by trukises
Have you taken a vinyl and a CD pressed from the same master recording and then mathematically compared the output waveforms with the waveform of the master?
JHDarkLeg t1_j20q9mb wrote
Reply to comment by PossibilitySuperb465 in Wiil CD's make a comeback like Vinyl? by trukises
A higher sampling rate will capture a larger frequency range, but it won't improve the sound quality within that range.
The interpolation you mention is called quantization error, caused by having to use discrete steps rather than an infinitely analog level. Quantization error effects the maximum dynamic range of the recording. A 16-bit CD has a dynamic range of 96dB vs about 70dB for vinyl.
Analog media does have it's own "data points" as well. The size of the magnetic particles on tape or the size of vinyl that is required to still be strong enough to not break when in contact with the stylus. It's harder to measure but it's there.
Regarding compression, CDs do not use lossy compression whereas DVDs use MPEG2 lossy compression.