Using Praat To Partially Reconstruct Speech using 3 Sine Waves

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Uploaded by: stormium

Upload date: 9/28/2025

Description:

In this recording I used Praat

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https://www.fon.hum.uva.nl/praat/

 to reconstruct recordings of me speaking by the use of 3 sine waves, assigned to track each of the 3 formants of my speech. Keep in mind that up to five are sometimes measured.
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F1 (first formant): Relates mainly to how open the mouth/jaw is.
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F2 (second formant): Relates mostly to tongue position (front vs. back).
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F3 (third formant): Adds clarity and helps distinguish certain sounds (like “r” vs. “l”).
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F4, F5, …: Higher resonances exist, but they’re less critical for distinguishing vowels; they can influence timbre or voice quality.
Here

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https://www.youtube.com/watch?v=UrBZsUBibtk

 is the video that inspired me to try this.
Here

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https://stormium.net/files/Praat_Scripts.zip/

 is a little bitty zip file, containing the two scripts used in this recording.
Hope you find this interesting!

Comments

  • rommix0 - 09/29/2025

    I thought I was the only one. It wasn't long ago that I read that F2 defined tongue position, and F3 defined what's called R coloring of the vowels. R is for rhoticity. Rhoticity is extremely rare in foreign languages, but extremely common in american english.

    Some consonants and liquid sounds like R are also affected by something called Labialization based on if the vowel is a front or back one.

    In short, the unique version of phonemes are called allophones. The most well known allophone is the velarized L (also known as dark L) like in the word bowl.

  • the space pup - 09/29/2025

    . I think that's right

  • KamiKitsune - 09/29/2025

    something about baking and cookies?

  • vrivri - 09/29/2025

    That's interesting. In fact, the script link is broken or no longer exists.

  • SilkyDinoRoar - 09/29/2025

    Wow, I loved this. Reminds me of how they took someone's voice and synthesized it to be used with the Texas Instruments speak and ... products.

  • SilkyDinoRoar - 09/29/2025

    Well darn, sorry for the double post. I thought you could edit your comments. Could that be added in future possibly?
    But, anyway, I also was wanting to say that it reminded me of one of the really really old synthesizers. I can't remember what it was called. But, it also sounded very similar to these and even had that shaky quality to it.

  • Jim Pickens - 09/29/2025

    I think you can...

  • Jim Pickens - 09/29/2025

    ok no you can't, that was applevis that just did that

  • patricus - 09/29/2025

    I only heard gookity gookity gook on the end that wasn't even speech but it was almost speech lol

  • Andrew T - 09/29/2025

    Very interesting and cool comments from all of you.
    I will say @KamiKitsune was the closest to figuring out what it said.
    @Vrivri You're right! tired me put a slash at the end of the link. woops. This is what you want

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    https://stormium.net/files/Praat_Scripts.zip

    .

  • keoku - 09/30/2025

    This is very cool.