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Rockbox mail archiveSubject: Re: DSP: low pass filterRe: DSP: low pass filter
From: BlueChip <cs_bluechip_at_webtribe.net>
Date: Sat, 13 Aug 2005 23:25:04 +0100 Check out "fast fourier transforms" (FFT) available for most DSPs and most languages. >Hi All, > >I need a simple (doesn't have to be really accurate) filter to cut all >high frequencies (say > 120 hz) from a stream of samples. This way I want >the peakmeter to react only on the bass tones. > >I already have dynamic backlight dimming linked to the peakmeter value, >but it flashes at high tones too now... > >Can anybody help me out? > >Tomas >_______________________________________________ >http://cool.haxx.se/mailman/listinfo/rockbox _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2005-08-14 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |