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[SergiyShulgan]

Hi, working with the opus codec, I noticed that when changing packet loss perc, the sound quality changes. Bitrate is constant. At values close to some value (different, for different bitrates), distortion in the sound may occur. Is it normal for opus? Is it possible to calculate how much I need to change the bitrate after changing the packet loss perc so that the quality remains at the same level?

[nofreewill42]

Audio = packet0, packet1, packet2, ..., packet127, for example. If you loose all the packets but i.e. packet2, then you can have however high bitrate in packet2, you won't be able to reconstruct the audio.

And having more packets lost and higher bit rate will make a different impact on the audio as less packets being lost while working on lower bitrate.

I don't know of any empirical tradeoffs of these two, but you could make that judgement for yourself.