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So long as you're doing some sort of transformation on the vocal sound, it can be reversed. A vocoder is probably the the best way to go if you need real-time disguising. If concealing vocal identity is paramount, then you shouldn't be utilizing a voice recording at all. You should instead use a method that totally obfuscates the original vocal signal, ...


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The best thing I know is to use TRAX software from Flux / IRCAM, for which an astonishing video is posted here. The software enables independant Pitch / Formant / Gender / Age control as well as mapping to subtle LFOs, and ability to add further Formant/Spectral envelopes. The software is designed for both speech and singing voice signals. The easiest way ...


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some pitch detunes and filters tied to the most random slow and medium fast LFO are very difficult to decode, like i think it would take a typical audio pro a lifetime before he gave up on it, any FX like volume, overdrive, vowel morph, vocoder, just has to be on super random LFO's.


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This technique has nothing to do with "removing" hum from recordings - it's all about using the very slight - but trackable - variations in mains frequency (50Hz or 60Hz depending on where you are) - to authenticate recordings. Localised recordings of mains AC frequency can be spectrally tracked so that the variations in the AC frequency can be compared ...


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