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Sounds with electronics Answered

So here goes, I am trying to figure out how to make basic sound generating machines. Preferably generating a sound that can be modified with a potentiometer or something of the sort. The principle is simple, these will be for messing around, possibly, if the result is good, using in some random recordings of mine, so most of the machines will have a jack out plug. Anyhow I was wondering, what, in a circuit, actually makes sound, what is the base of all sound generating electronic devices (synth, analog stuff, beepers) what actually creates the wave, the current that is sent to the speakers? Have I just answered my own question by saying current? Is it just the electrical current, and putting random resistors, capacitators, potentiometers and stuff changes the sound that is generated? Any help is more than welcome! and if anything good comes of it, I'll post some sound clips!

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Goodhart
Goodhart

9 years ago

You need a circuit, or chip that will take a signal (power) and oscillate it at the frequency you wish to produce.

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gavox
gavox

Reply 9 years ago

thanks, the instructable on how to make a square wave oscillator include the use of an OPAmp chip, would that be the kind of chip you are talking about?

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gmoon
gmoon

9 years ago

It's a fairly complex question, as there are many approaches to audio synthesis (analog, FM, PWM, sampling, etc.)

You could just plug the word "synth" into the search box on the upper right of the page. Most of the simple stuff you will find will have a basic explanation of function.

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gavox
gavox

Reply 9 years ago

Thanks for your answer, I'm planning on making the square wave oscillator found on this site, and my synths would be all analog, no sampling, completely stand-alone, (except for power supply)