> -X subtract 5db from all masking thresholds. The masking thresholds
> are often too aggressive, causing problems like audible distortion
> even with -V 0. Subtracting 5db from the ISO psy model is actually
> recommended in "Application of a physiological ear model..."
> by Frank Baumgarte (page 6):
>
http://www.tnt.uni-hannover.de/project/coding/audio/perception/publications.
html
I didn't understood this paper like that. It seems to me that the author
never recommended to remove 5dB, but only done it to match the bitrate of
its ear model.
However, it's right that the ISO masking threshold are sometimes too
aggressive, and sometimes not. So it seems a good thing, but 5dB is perhaps
not the right value.
This viewpoint is only theorical, as I didn't yet tested the -X
Gabriel Bouvigne - France
[EMAIL PROTECTED]
icq: 12138873
MP3' Tech: www.mp3tech.org
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