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A few years ago I did a much more detailed comparison of lossy audio codecs: https://andrewrondeau.herokuapp.com/objectively_comparing_audio_codecs_the_case_for
by gwbas1c 6y ago
A few years ago I did a much more detailed comparison of lossy audio codecs: https://andrewrondeau.herokuapp.com/objectively_comparing_audio_codecs_the_case_for_lossless https://andrewrondeau.herokuapp.com/objectively_comparing_au...
TLDR: If you need to go lossy, use Opus. At higher bitrates, it's the only lossy codec that has a flat frequency response.
- hctaw 6y agoYou cannot objectively analyze the performance of perceptual audio codecs. They exploit subjective perception of audio signals... I haven't dug into your analysis but on the surface it appears quite biased against MPEG codecs that exploit masking to determine quantization levels (one of the major advantages being that humans can't perceive quantization error in the presence of loud/noisy content, which can be exploited to use far fewer bits for the same samples!). The closest thing to an objective analysis tool is PEAQ which is also pretty terrible, but its universally terrible so that makes it useful as a benchmark.
- gwbas1c 6y agoI demonstrate the equalization differences. That's about as objective as you can get.