Lynne's compiled musings

Low bitrate white noise?

"Every collection of random bits is white noise.".

"Every collection of random bits is a valid Opus packet.".

But is every collection of random bits a valid Opus packet which decodes to white noise¹? Here are two volume-reduced² 16kbps samples.

Clearly not.

1. Yes, in a VoIP context signalling an Opus packet is silence via the flag will cause the comfort noise generator to produce noise, but it won't be white. ↩
2. Volume was reduced without transcoding via the opus_metadata FFmpeg BSF. ↩

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