google / google/lyra

quality issues

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#13 2 comments 0 reactions 0 assignees View on GitHub
enhancement
Dominant language
C++
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Description

Hardware:
modest gaming laptop speaker running Win10 & Firefox

Example: [demo blogpost](https://ai.googleblog.com/2021/02/lyra-new-very-low-bitrate-codec-for.html)

Issues:
Too much siblance (sharp `s` & `ch` & some other Transients)
Slow 'attack' at the start of some words (eg video of girl: M in "made", W for "What", & TH in "Think" have their initial loudness cutoff).
Overall EQ seems too bright

Pros:
Quality is easier to understand than Opus. & thanks for improving speech compression; so many times I had to manually tweak clients' talks' audio files to compress better.

I could do more deeper audio analysis if you need; I used to do audio DSP programming....

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