Comment Re:FLAC (Score 1) 277
It doesn't make sense to me when you say frequency-domain codecs cannot be perceptually transparent. That statement is general and absolute and is in contradiction to the experimental data.
If a codec is indistinguishable from the original by a given individual, it is by definition transparent - at least for that person, with that source material, on that system.
Absolute proof is not achievable in this situation, but I believe the extensive double-blind ABX tests on hydrogenaudio provide a reasonably convincing body of evidence in favor of general perceptual transparency of high-bitrate MP3 with most source material on most sound systems for most people.
Vague and dogmatic assertions about "known issues" are less convincing to me. If it is a question of human perception, which this is, then the way to get closer to the answer is to test it by observing humans, not by theorizing without experimenting.