this post was submitted on 19 May 2026

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How would one go about generating human voice? (lemmy.world)

submitted 2 months ago by yogurtwrong@lemmy.world to c/askscience@lemmy.world

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Posting here, as this has more to do with the human voice itself than electronics.

I am planning to build a simple human voice synth, but I couldn't find much on the internet. The overall plan is to generate a signal, pass it through about 10-ish bandpass filters and adjust each filter's gain to create speech.

For my source signal, I found this, which seems to be the sound generated by the larynx before passing through the throat and mouth. From what I read online, a relaxation oscillator or a sawtooth wave seems to be a close approximation of it.

One of the things I am struggling to find is the frequency components corresponding to certain phonetics. Though I am pretty sure it is either because I can't find the right keywords or because SEO ruined the internet.

US2121142A is the patent for Voder, the first human voice synthesizer by bell labs. It has a similar structure to what I've been modeling in my head. Should I just use the frequency values here for my bandpass filters or should I use something else?

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[–] frongt@lemmy.zip 2 points 2 months ago* (1 child)

No need to call, I'm sure there are plenty of papers published if you use Google scholar or similar. Or thesis projects on github, etc.

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[–] _haha_oh_wow_@sh.itjust.works 5 points 2 months ago

There are, but there's no harm in calling or e-mailing: It could be the start of a collaboration.

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lemmy:	0.19.20
mlmym (mschae):	26.3.3