thanks russlk. i'd like to actuate a puppets mouth with a solenoid. What i need is a bandfilter system that filters signals for the solenoid. The mouth movement can be rough, i mean, there is no need for very natural movements. Important is the open/closing moments of the mouth, synchrone with speech start/stop.
i was thinking that it is possible with a system with the speakersignal (tape or microphone) as input, then adjustable bandfilters for filtering the signal and finally a output signal for a relais that triggers a solenoid.
what do you think russlk? can you help me out? the system is neccessary for a puppet movie with 6 puppets. Each puppet has its own (voice) input signal. I'd like to do this with the above mentioned system so there is no need for manual actuated mouths anymore.