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Ramblio

  • Meg

    I don't know what to think. You sound like a kids laptop toy. it scares me a bit, but, I also love it. You still have human qualities to your voice. but this is very compressed and robotic sounding. Like, those voice changers.

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  • Doug Lee

    Skimmed it I did, but sounds like LPC10.

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  • Dane Stange

    Ha, this sounds very sharp. I'd estimate maybe this is an svox pico style vocoder, but a modern digital encoder is absolutely much smoother than that! What even is that thing? It's rather sharpington indeedly dandy, atop that, wouldn't you want an actual speech system behind it? I imagine there's a lot more, as even I mean if you wanna know how the microsoft voices are made they've been rewritten in portable c, thanks to some delicious vibecoding.

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  • Diego Gomez

    I built this vocoder from scratch as my own rough approximation of an LPC-style vocoder. It tracks the pitch of the original voice, separates the excitation into several frequency bands, and uses a pulse-train/noise excitation depending on how voiced the speech is. I also used CheapTrick to estimate and apply the spectral envelope rather than a traditional LPC all-pole filter. This recording is my own voice converted through it. It uses a YIN-based pitch tracker with multi-candidate selection and harmonic scoring to avoid octave errors, though it seems like sometimes it shifts octaves on certain things so I can’t guarantee that part.

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  • Diego Gomez

    I was trying to compare this against world vocoder, but I guess Claude built it from scratch for me somehow instead of actually using world vocoder.

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  • Diego Gomez

    If y’all have any other ones I should try, let me know. I’d love to test them!

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  • Doug Lee

    Diego: My experience with LPC10 was from a rarely remembered program called SpeakFreely, which was my VoIP solution of choice before we had Skype. It was the worst, yet most amusing encoding available in that application, alongside PCM and GSM and a few others.

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  • Diego Gomez

    Oh wow, that’s interesting! Well, I just so happen to also have an implementation of LPC itself. I wonder how many implementations there are out there?

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