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Music put through a precision rectifier - what does that sound like?
Music put through a precision rectifier - what does that sound like?
By Julian
Youtuber, shed dweller, solar charge controller aficionado
When do we hear it?
Hey. I've been searching for two years. I imagine it doesn't work well but just to make sure and learn why not….why can't you do full wave rectification on an audio signal, run it through transistor or op-amp for amplification then convert it back to audio(for the purpose using say, a single transistor that amplifies both the positive and negative halfs of audio signal with only needing a small forward bias to keep transistor on/active)?
What's the deal, does it cause distortion or something?
Most useless experiment ever, by a furry foreigner no-less.
I have seen this video 3 years ago. Today I Googled "what sound do you get if you rectify the output to a speaker" and your result was at top! Now I remember. And no one else has ever published an answer to this question. You are unique!
For single notes, the distortion you get actually shifts your tone up by an octave. You can see this clearly from the wave-form, it goes from 1 maximum and 1 minimum per period to 2 maxima and 2 minima per wavelength effectively doubling the fundamental frequency
Great experiment, thanks for sharing.
Design/schematics from ETI (Electronics Today International) SEPTEMBER 1980. 😉 It is on page 62. 😉
Whenever I leave my apartment…the local sports radio station (with a very strong, clean signal) is randomly interrupted by music. It's the same kind of music every time. Thus, I assume it's a Bluetooth signal coming from one of the units in the same building. As soon as I drive about 50 ft, to the first stop sign, it cuts back to the original sports station. Is it possible for a mere Bluetooth signal in someone's apartment to cut into my fm signal?
I don't think that it would sound very nice and very distorted so lets not do that.
Seems like a good way to simulate a blown speaker. I have blown a number of them over the years, and they sound very much like this rectified audio when they're blown.
What PCB Design software do you use?
Theoretically, you could use this to build a speaker without permanent magnets.
well that was awful, thanks mate 🙂
Egad, is that '80s Disco, Julian? Ayieeeeeeeeeeeeeeeeeeee! My ears! That's a poor test music for this since it's already distorted before your rectifier. VBG No, we don't need to hear it less distorted. 😉