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Topic: QAAC: TVBR and CVBR (Read 8522 times) previous topic - next topic
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QAAC: TVBR and CVBR

I would like to understand the technical difference between TVBR and CVBR.

Pls. can someone explain or point me to a place where I can found already published documentation.

Thx

QAAC: TVBR and CVBR

Reply #1 –
Quote from: schiff108 on
I would like to understand the technical difference between TVBR and CVBR.

Pls. can someone explain or point me to a place where I can found already published documentation.

Thx


Well. Seems that I already found the answer in another post below.

    Hard CBR: no bit-reservoir, every frame (21.5-43 ms) has the same bit consumption (e.g. -hard-cbr in Opus)
    Soft CBR: small bit-reservoir, for example one with the size given in the MPEG standard (e.g. Fraunhofer CBR)
    ABR: large bit-reservoir, maybe up to a few seconds. Entirely up to the developer (e.g. ABR in Nero's encoder?)
    CVBR: very large bit-reservoir, maybe up to a minute. Entirely up to the developer (e.g. CVBR in Apple's encoder?)
    TVBR: maximum bit-reservoir, every frame and channel may use between ~10 and 6144 bits (e.g. Apple's or Fraunhofer's VBR)

Sorry for not checking before.

QAAC: TVBR and CVBR

Reply #2 –
I remember C.R.Helmrich wrote that but I can't find the post, can you link it please? Thanks.