strobe lights and tempo

[Budweiser [FTS]]

An envelope follower tuned to the frequency required would work.
Say, working between10Hz and 60Hz, a bass drum "beat" could
be extracted and a gate signal produced at the output, and used
to trigger a strobe midi clock (via some form for DSP for midi).

<bUd>

>Would the same type of bpm calculation be used to provide an interface
>whereby an audio signal is analysed and a midi clock signal of the
>correct tempo put out? Could this be done or would big DSP be needed?
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>On Sun, 22 Nov 1998 Aranakin at aol.com wrote:
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>> how does a strobe that flashes with the beat (like at a dance club) work?
>> whatis the principal behind it and who would sell a kit that would allow
you
>> to build your own sound reponsive strobe light?
>> anthony
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