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Nope. Opus and Vorbis are better, but they still don't support 100% gapless playback. E.g. create a full-scale sine wave, split it into two files, then convert
by aaaaaaaaaaab 4y ago
Nope. Opus and Vorbis are better, but they still don't support 100% gapless playback.
E.g. create a full-scale sine wave, split it into two files, then convert them to "gapless" Opus. Now open the files in Audacity and you'll see that there's a small amount of ringing at the boundary, so it is not truly gapless.
If you try the same with AAC using Apple's gapless metadata (i.e. iTunSMPB) you'll find that the boundary is perfectly continuous.
- edflsafoiewq 4y agoAFAIK iTunSMPB just tells you where playback should start/end, which is also all the Ogg metadata does for you. MP3s can have iTunSMPB too, it's just a matter of if a player supports it. Is there any specific feature of AAC that makes gapless playback possible?
- aaaaaaaaaaab 4y agoNope, there’s nothing special to gapless playback. But as it stands, libopus cannot produce truly gapless files right now. Is it a bug in libopus? Most likely.