> 
> In calc_noisex(), tot_noise is stored as a sum of distortions.
> Each distortions are calculated in dB (10*log10).
> Assuming that one distortion is -3 and another distortion is +3,
> total distortion will be zero.   Is it what we expect ?
> 
> I think checking tot_noise means that we allow the large distortion.
> (see -X2 or -X3)
> 
> 
> Iwasa Kazmi
> [EMAIL PROTECTED]
> 

It probably should have been called "average_noise".  It may
not the best quantity to use since as you point out it will
allow a large distortion in one band if all the other bands have
noise < masking.  But thats why we have all those other 
variables: tot_noise, over_noise, max_noise and over.

This comes back to the questio of what is the best measure of quality?
the average noise (tot_noise), the average of the noise > masking
(over_noise), the maximum noise in any sfb (max_noise) or the number
of sfb's with distortion (over)?  Or some complicated combination
(like the later -X options)?


Mark


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