Opus at its present state defeats AAC for speech and broadband audio while it sucks with tonal audio and because a movie soundtrack is a mix of all types in one I'm stuck on whether Opus might outclass AAC in this department.
I've always wished I could use 64 kb/s for a stereo movie track which HE-AAC achieves with great quality on 90% of it but if there's just one part of the movie with things like glass clinking, chimes, bells or triangles then HE-AAC fails horribly on these parts while sounding flawless with the rest. Because I accept no such compromise, I've always used 80-96 kb/s AAC.
I'm wondering if Opus might finally make that possible? It uses really low bitrates for speech parts and another algorithm for more complex ones so even though Opus does suck with tonal audio maybe the extra bits saved from the speech segments could make up for the loss in those parts? Has anyone done tests on this?
I've always wished I could use 64 kb/s for a stereo movie track which HE-AAC achieves with great quality on 90% of it but if there's just one part of the movie with things like glass clinking, chimes, bells or triangles then HE-AAC fails horribly on these parts while sounding flawless with the rest. Because I accept no such compromise, I've always used 80-96 kb/s AAC.
I'm wondering if Opus might finally make that possible? It uses really low bitrates for speech parts and another algorithm for more complex ones so even though Opus does suck with tonal audio maybe the extra bits saved from the speech segments could make up for the loss in those parts? Has anyone done tests on this?