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I found the Lyra codecs in both examples easily the most difficult to comprehend, even compared against the scratchy Speex. Am I the only one? It is a little o

I found the Lyra codecs in both examples easily the most difficult to comprehend, even compared against the scratchy Speex. Am I the only one? It is a little odd to me to see the praise here and on the previous discussion. To be fair, I am convinced I have APD (and, to be fair again, I have never got it checked out). E: Just realized there is a third example. Perhaps it is not as strong a statement due to Opus' doubled bitrate, but it is still far scratchier. Yet, it is more decipherable than the Lyra codec to me.

deleted 6y ago
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bscphil 6y ago
I personally wouldn't say "difficult to comprehend". I would say that the Lyra audio is "cleaner" but that the artifacts that there are, are louder and more annoying in Lyra. There's a very bad ringing effect and some flutter. If you personally find these artifacts distracting or confusing, I could very easily see the Lyra examples being harder to understand. I'm almost certain that Lyra has increased the volume on the first sample too. It's quite audible, although I haven't confirmed this with Audacity. Through good quality headphones, I actually find the Lyra artifacts rather piercing and think I'd pretty quickly get fatigued through having it in my ears over a long conversation. Maybe they would handle this better with a bit of a lowpass filter added.
- acdha 6y ago
  I noticed the loudness, too, followed by a bit of a letdown with the subsequent odd artifacting. I was wondering whether that was also a factor in the user-perception ratings similar to how FM radio stations all started deploying compression to sound louder because it increased the odds of people favorably picking out their station while scanning through the spectrum.
contravariant 6y ago
It sounds 'clean' but the remaining artefacts are quite weird. Somehow the intonation/timing feels off, which is just sounds plain odd. The compression artefacts are 'ugly' but at least recogniseable as compression artefacts.

deleted 6y ago

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bscphil 6y ago

I personally wouldn't say "difficult to comprehend". I would say that the Lyra audio is "cleaner" but that the artifacts that there are, are louder and more annoying in Lyra. There's a very bad ringing effect and some flutter. If you personally find these artifacts distracting or confusing, I could very easily see the Lyra examples being harder to understand. I'm almost certain that Lyra has increased the volume on the first sample too. It's quite audible, although I haven't confirmed this with Audacity. Through good quality headphones, I actually find the Lyra artifacts rather piercing and think I'd pretty quickly get fatigued through having it in my ears over a long conversation. Maybe they would handle this better with a bit of a lowpass filter added.

acdha 6y ago
I noticed the loudness, too, followed by a bit of a letdown with the subsequent odd artifacting. I was wondering whether that was also a factor in the user-perception ratings similar to how FM radio stations all started deploying compression to sound louder because it increased the odds of people favorably picking out their station while scanning through the spectrum.

contravariant 6y ago

It sounds 'clean' but the remaining artefacts are quite weird. Somehow the intonation/timing feels off, which is just sounds plain odd. The compression artefacts are 'ugly' but at least recogniseable as compression artefacts.