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Subject: Re: FS#10199: Limiter DSP function

Re: FS#10199: Limiter DSP function

From: Thomas Martitz <>
Date: Mon, 17 Aug 2009 12:26:10 +0200

Al Le schrieb:
> On 17.08.2009 07:44, Jeff Goode wrote:
>> Jeff Goode wrote:
>>> The latest version of my limiter DSP was just posted this
>>> afternoon. Its purpose is to amplify the signal by a user
>>> selectable amount, then smoothly reduce gain for those samples that
>>> clip as a result. This allows listening to dynamic material in
>>> noisy environments that could drown out quieter passages, sort of a
>>> smart volume control.
>>> [. . .]
>> Nobody appears to have an opinion one way or the other regarding this
>> patch
> Jeff, I read the patch description and tried to understand what it
> does but couldn't fully do it. (Disclaimer: I'm not a sound processing
> expert.) And I'm sorry for not having replied earlier.

It's basically replaygain with clipping prevention, with the differences
that only the passages that are too lout is scaled down by a few dB, not
the whole file...IIUC

I don't really see a sense in the feature, but I'm not opposed either.

Best regards.
Received on 2009-08-17

Page was last modified "Jan 10 2012" The Rockbox Crew