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Subject: Re: DSP: low pass filter

Re: DSP: low pass filter

From: BlueChip <cs_bluechip_at_webtribe.net>
Date: 2005-08-14

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

_______________________________________________
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Received on Sun Aug 14 00:31:00 2005


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