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Subject: Re: Audible distortion/clipping

Re: Audible distortion/clipping

From: Chris Holt <amiga2k_at_cox.net>
Date: Mon, 20 Jan 2003 21:24:40 -0500

I like 3.
If I have some material that is in need of normailization (as in, very
quiet) and can't do it right away, or can't be bothered to do it, then I
would still like to be able to compensate at least on a temporary basis.

Chris

----- Original Message -----
From: "Linus Nielsen Feltzing" <linus_at_haxx.se>
To: <rockbox_at_cool.haxx.se>
Sent: Monday, January 20, 2003 6:07 PM
Subject: Re: Audible distortion/clipping


> Björn Stenberg wrote:
> > Joaquim Carvalho wrote:
> >
> >>Full volume on the jukebox should be full volume. Exceeding the
> >>output limit of the DAC (16 bits -> +32767 to -32768 ) for putting
> >>a few more milliwatts into the headphones is not a good thing.
> >
> >
> > You mean every other consumer audio equipment you own is perfectly
distortion free at max volume? Your discman, walkman, pocket FM radio?
> >
>
> Ooops. It just came to mind that we do "overdrive" the MAS decoder. The
> 100% volume setting in Rockbox is 12dB, and 90% is 0dB. Setting the
> volume above 90% may introduce digital distortion.
>
> We can solve this in several ways:
>
> 1) Don't allow a volume above 0dB
>
> 2) Give a warning when setting it above 0dB
>
> 3) Let 0dB be 100% and allow the user to set it up to 110% (or whatever)
>
> 4) Don't do anything
>
> 5) ???
>
> /Linus
>
Received on 2003-01-21

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