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Rockbox mail archiveSubject: Re: the ALDI rockbox?Re: the ALDI rockbox?
From: Jerry Van Baren <gerald.vanbaren_at_smiths-aerospace.com>
Date: Tue, 22 Feb 2005 14:13:36 -0500 Vladimir Pantelic wrote: [snip] > No, this is fine. I know that you can change the pitch (and speed) of the > MAS by changing the crystal frequency setting in the MAS. > > But what the M3PO does is not simple pitch shift, the pitch stays the > same while the speed changes. The M3PO offers a speed setting between > 0.25x to 20x, this extreme range cannot by achieved by tweaking the crystal > frequency. (as said, you can "use" the range between 90% and 110%, > everything else > does not sound very nice) > > Regards, > > Vladimir BC explained it but tersely. Changing the playback speed (e.g. speed it up) inherently causes a pitch shift up. What the M3PO has is an additional _software_ algorithm that shifts the pitch the same amount in the opposite direction (down) which results in no apparent change to the pitch but faster playback. gvb _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2005-02-22 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |