audio to trigger

[ryckebu at subasehp.san.mrms.navy.mil]

You need an envelope follower. They are real easy to biuild with a 
diode cap and resistor, possibly an opamp stage for 
buffering or to set output levels.

Jules

> Date:          Thu, 10 Dec 1998 
05:16:59 +1100
> To:            "synth-diy at mailhost.bpa.nl" <synth-diy at mailhost.bpa.nl>
> From:          Stewart Pye <stew at uq.net.au>
> Subject:       audio to trigger

> Hi All,
> 
> I'm looking for a way to convert the audio outs of my TR 707 to short
> trigger pulses for triggering analog drum sounds. I thought about a
> differentiator but I'd get several pulses with that, or a 555 one shot but
> I guess I'd get the same problem. Any help would be greatly appreciated.
> 
> Thanks,
> 
> Stewart Pye
> 
> 
>