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Rockbox mail archiveSubject: Re: FS#10199: Limiter DSP functionRe: FS#10199: Limiter DSP function
From: Jeff Goode <jeffg7_at_gmail.com>
Date: Tue, 14 Jul 2009 20:39:26 -0400 Replaygain doesn't reduce dynamic range, which is the goal of a limiter. The idea is to amplify low level material so it's audible in a noisy environment and at the same time avoid clipping your amps. Replaygain tags, even with preamping and avoid clipping, will bring the entire waveform up to just short of clipping and no more. The shape of the waveform is unchanged, and the low level material is still low level. My solution is to amplify past clipping, but reduce the clipped peaks on the fly. That way the low level material becomes more audible and the amps (and speakers) are safe. Jeff Dan Everton wrote: >> Summing up: this patch adds a "Limiter Preamp" menu item to the sound >> settings menu on SWCODEC targets. Any selection above 0db amplifies the >> > > How does this compare to just adding ReplayGain tags to your files? > IIRC, the ReplayGain code currently supports both a pre-amp and an > "avoid clipping" setting. > > Cheers, > Dan > > Received on 2009-07-15 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |