[music-dsp] simple bandpass code ?
tebjan at gmx.de
Wed Mar 23 14:11:33 EST 2005
to help a friend for his pre-diploma in design, i implemented a simple
music analysis patch with the graphical language vvvv. we try to detect
beats in low, mid and high frequency bands of a music input.
for now i do FFT on the input with 256 output slices, than i sum up the
desired spectral bands to get three ouput signals.
but i think its a little oversized, isn't it ?
we just have to split the music input in three bands. therefor i think
its faster to have three simple bandpass filters.
we dont need musical quality but speed for realtime. i am just interested in
the energy envelope of the three bands for beatdetection. so can anybody
to a short code that i can rebuild with vvvv ?
i browsed the music-dsp source code archive, but couldn't find one,
or are they build up with a low and a high pass ?
many thanks and greets,
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