[speex-dev] --dtx alone does nothing?

[David Willmore]

> > So there should be some equivalency between --abr values and --quality
> > values?  Or do they effect the rate in different ways.
> 
> Actually, --abr adjusts the quality in real-time so that the average
> bit-rate meets a certain target. with just --quality, the final average
> bit-rate is dependent on the data, so that's why --abr is there.

Is there some time window over which it tries to meet this average?

> > I'm still confused as to all of the different ways to specify the bit rat=
> e/
> > quality of an encoding.  Could you enumerate the valid combinations of
> > switches?
> 
> Basically, you have CBR and VBR and you can specify either quality or
> bit-rate, so:
> 
> CBR+quality  = --quality <int>
> VBR+quality  = --vbr --quality <float>
> CBR+bit-rate = --bitrate <int>
> VBR+bit-rate = --abr <int>

Okay, so are CBR+quality equivalent to CBR+bit-rate or is there some psycho-
acustics that make them different?

What is the range of quality <float>?  0-10 like the int or 0.0-1.0?

Thanks for helping to clear this up for me, Jean-Marc.

Cheers,
David
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