Hi,
I thinks it is a scale factor, but I am not really sure how it works. It
seems pretty easy to do in the analog domain, but I can't comprehend how you
would do it digitally. Normalization is easy, as far as I understand it,
because you just change the scale factor of each, uh, thingy :-)
Compression would be much more difficult than I can comprehend.
mark stephens
----- Original Message -----
From: "Richard A. Smith" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, January 17, 2000 4:40 PM
Subject: RE: [MP3 ENCODER] Normalization routine?
On Mon, 17 Jan 2000 14:12:20 -0500, Mark Stephens wrote:
>everything else equally. Normalization is like turning up the volume, no
>dynamic range is lost. The difference between the quietest sounds and the
>loudest sound is the same. If you change the difference (dynamics) of the
>music then you are either compressing or expanding. By letting the peaks
>clip, you are using distortion to reducing the dynamic range of the music.
>Peak limiting just reduces the output for any waveform above a threshold
>that you set, without adding clipping distortion.
Ah.. I see. Thank you. I had a general idea what a compander did
but never had a full explaination. This sounds like a better
solution than what I was doing.
How is the interface handled between the music sections? I mean when
you scale a portion how do you match it back up to the sections
surrounding it? Some sort of changeing scalefactor?
--
Richard A. Smith Bitworks, Inc.
[EMAIL PROTECTED] 501.846.5777
Sr. Design Engineer http://www.bitworks.com
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