Hi folks,
One of the utilities, namely mp3amp.exe, available
at http://www.chat.ru/~lrsp/coding.html (thanks to
Sergey) made me curious about this "normalization"
issue once again ...
Can anyone please explain it to me in more details,
or/and point to some references ??? Here is what
Mark said earlier (and, I guess, what Sergey's
utility does):
> One easy thing would be to change the value of
> global_gain. it's an 8bit int stored for each
> channel of each granule. Changing this +/-1
> changes the volume by .75db.
But volume of *what* does this value change ??? To
what value global_gain is set during encoding ???
Most likely, it is set according to some mean
level of the source data; and then it tells to
decoder with what factor to amplify frame content.
If so, how the result of such decoding will differ
from regular normalization ???
Now I'm totally confused: what is "regular
normalization" anyway ??? Isn't it multiplying
data to some constant factor ???
Any help would be appreciated.
Greetings,
-E.
[EMAIL PROTECTED]
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