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Subject: RE: Audible distortion/clipping
From: Henri DAVID (hdavid_at_mail.com)
Date: 2003-01-21


even better, solution with setting in menu settings that allow the user to
decide what the maximum is (100, 110)

henri

> -----Original Message-----
> From: owner-rockbox_at_cool.haxx.se [mailto:owner-rockbox_at_cool.haxx.se]On
> Behalf Of Chris Holt
> Sent: 21 January 2003 03:25
> To: rockbox_at_cool.haxx.se
> Subject: Re: Audible distortion/clipping
>
>
> 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
> >
>
>



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