# Talking Piano

**URL:** <https://boards.straightdope.com/t/talking-piano/513299>\
**Category:** Cafe Society\
**Created:** [October 10, 2009, 9:03am UTC](https://boards.straightdope.com/t/talking-piano/513299 "2009-10-10T09:03:49Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Half\_Man\_Half\_Wit](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/half_man_half_wit/32/21766_2.png) [@Half\_Man\_Half\_Wit](https://boards.straightdope.com/u/Half_Man_Half_Wit)\
**Post date:** [October 10, 2009, 9:03am UTC](https://boards.straightdope.com/t/talking-piano/513299/1 "2009-10-10T09:03:49Z")

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Saw this on TV a few days ago and just remembered about it: the [talking piano](http://www.youtube.com/watch?v=muCPjK4nGY4), a mechanical piano modified to play voice recordings. Granted, it’s not especially high fidelity, but I wouldn’t have thought it possible at all.

Not sure if this is the right place to put it, one could certainly see a degree of mundane pointlessness in this, but it’s played on a piano after all…

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**Author:** ![BigT](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bigt/32/12044_2.png) [@BigT](https://boards.straightdope.com/u/BigT)\
**Post date:** [October 11, 2009, 10:39am UTC](https://boards.straightdope.com/t/talking-piano/513299/2 "2009-10-11T10:39:47Z")

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It’s neat, but it’s also quite monotone, and would be quite creepy in the right setting. And I’m reading it just before bed!

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**Author:** ![Mike\_Fun](https://avatars.discourse-cdn.com/v4/letter/m/a9adbd/32.png) [@Mike\_Fun](https://boards.straightdope.com/u/Mike_Fun)\
**Post date:** [October 12, 2009, 7:04pm UTC](https://boards.straightdope.com/t/talking-piano/513299/3 "2009-10-12T19:04:31Z")

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It’s a piano run through a vocoder. Really any sound source could be used.

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**Author:** ![BigT](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bigt/32/12044_2.png) [@BigT](https://boards.straightdope.com/u/BigT)\
**Post date:** [October 13, 2009, 9:35am UTC](https://boards.straightdope.com/t/talking-piano/513299/4 "2009-10-13T09:35:01Z")

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> [@Mike\_Fun](#):
>
> It’s a piano run through a vocoder. Really any sound source could be used.

It took me a bit, but I think I understand what you are saying. What they did was run the kid’s reading through a vocoder, rounding the formants to the closest piano note frequencies, and used that data to play notes on a device similar to a nickelodeon or player piano.

I already knew that was what the experiment did. What I didn’t know was that was how a vocoder worked. I thought they just sped up or slowed down the pitches of the voice to match the note played.

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**Author:** ![Half\_Man\_Half\_Wit](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/half_man_half_wit/32/21766_2.png) [@Half\_Man\_Half\_Wit](https://boards.straightdope.com/u/Half_Man_Half_Wit)\
**Post date:** [October 13, 2009, 9:47am UTC](https://boards.straightdope.com/t/talking-piano/513299/5 "2009-10-13T09:47:02Z")

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Doesn’t a vocoder usually work the other way round, though – taking an instrument’s sound as carrier, modulating it with a voice input? This decomposes the voice recording, and mechanically plays it on an otherwise unaltered piano – perhaps nothing terribly challenging, engineering wise, but an original idea nevertheless.

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**Author:** ![Gyrate](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gyrate/32/3588_2.png) [@Gyrate](https://boards.straightdope.com/u/Gyrate)\
**Post date:** [October 13, 2009, 9:53am UTC](https://boards.straightdope.com/t/talking-piano/513299/6 "2009-10-13T09:53:16Z")

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Clearly, the piano has been drinking.

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**Author:** ![Pitter\_Patter](https://avatars.discourse-cdn.com/v4/letter/p/90db22/32.png) [@Pitter\_Patter](https://boards.straightdope.com/u/Pitter_Patter)\
**Post date:** [October 13, 2009, 7:21pm UTC](https://boards.straightdope.com/t/talking-piano/513299/7 "2009-10-13T19:21:56Z")

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Can you imagine being awakened by that at 3am. I’m out the window!
