There is visible 20 kHz LPF, but it is meaningless for use case of music listeni... | Hacker News

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diimdeep on Aug 15, 2021 | parent | context | favorite | on: SoundStream: An End-to-End Neural Audio Codec

There is visible 20 kHz LPF, but it is meaningless for use case of music listening, right ?

I did not liked degradation at 140-128kb/s and noise above 16kHz and some artifacts 10-16khz that is clearly visible and much more impactful.

Here is spectrograms https://disk.yandex.com/d/PvQGSS2xBu7ucQ

rokweom on Aug 15, 2021 [–]

As I said, spectrograms are not indicative of compression quality. Codecs should be judged by ears only. What you see in a spectrogram will vastly differ between codecs and will not reflect their compression efficiency.

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