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• Reply: Chris Holt: "Re: Audible distortion/clipping"
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Have you tried the auto volume option?

Chris Holt wrote:
> 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
>>
>
>
>

-- 
Gerald L. Clark
Aero TerraTrike #1
http://www.wizwheelz.com/images/clarkaerotrike1.jpg
Member: Sky Soaring
Illinois, U.S.A.
Archos Recorder JBR20101 1.28 0x302 positive 0x200 positive 11.0592

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