Hi Michael,

You have the full spectrum with opus@8000h actually : 10,20,40,60,80,100,120 .

80,100,120 are created like this (using Opus repacketization):
80 = 2 x 40 ms
100 = 5 x 20 ms  (since Opus can only repacketize frames of the same size)
120 = 2 x 60 ms .

As far as I know 60 ms at 48 khz exceeds an internal buffer size in Freeswitch when decoding,
so that's why no frame sizes over 40 ms for Opus @ 48 khz .

Regards,
Dragos


On 10/07/2015 01:49 AM, Michel Aoun wrote:
I think that only 3 frame sizes (10ms, 20ms and 40ms) are implemented in mod_opus? 

Is there a reason for not adding the entire list of 2.5, 5, 10, 20, 40, and 60 ms (https://tools.ietf.org/html/rfc6716#section-2.1.4)?

Thanks

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