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Rockbox mail archiveSubject: Re: crackle in mp3's regardless of bps?Re: crackle in mp3's regardless of bps?
From: BlueChip <cs_bluechip_at_webtribe.net>
Date: Thu, 17 Feb 2005 04:17:37 +0000 As Rockbox does not accept 'anonymous' submissions, you will need to get it from http://homepage.ntlworld.com/cyborgsystems the build there is quite an old v2.2 build iirc, but the source and step-by-step instructions are there if you wish to compile it into a more recent build - shouldn't be necessary for these tests. BC At 21:10 16/02/2005, you wrote: >Bluechip- I will try that. Is that in the daily build? > >-----Original Message----- >From: BlueChip <cs_bluechip_at_webtribe.net> >Sent: Feb 16, 2005 2:38 PM >To: Gary <flgants_at_earthlink.net>, Rockbox development <rockbox_at_cool.haxx.se> >Subject: Re: crackle in mp3's regardless of bps? > > > > Hello > > > > Is there anyone else that has a problem with high end sound breakdown > > on some MP3's? I get a small amount of distortion on some MP3's that > > sound simial to a pre-amp being turned up to high. It seems to be pretty > > random, and doesnt seem to be confined to any low or high bit > > rate. Might there be something wrong with my V2, or is it just a > > characteristic of mp3's that my ears have just come to hear? > > > >Let me know > > > >Gary > >Could well be the mp3's ...but if your settings are tweaked out-of-spec >(which is allowed by Rockbox (which is a good thing)) then you may be >introducing digital distortion. > >Flatten everything (treble/bass/etc); disable MDB; and set the volume to >0db (iirc this is about 92 under Rockbox - it is "0db" or exactly "88" with >the audio3587 extension) >This is the maximum you are allowed before introducing digital distortion - >if you then increase the treble by 1db, you must reduce the volume 1db >...if you decrease *ALL* settings by 1db, then you may increase the volume >by 1db ...Audio3587 makes this simple, and flashes the icons when you are >at risk of digital clipping - so whether or not you want to use Audio3587 >permanently is up to you, but it would certainly be a good test-bed for >this type of complaint. > >BC _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2005-02-17 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |