Zach Archer Blog » linear predictive coding http://blog.zacharcher.com Friend to analog and digital alike Tue, 10 Jan 2012 06:24:29 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Synthetic Speech in Flashhttp://blog.zacharcher.com/2009/08/27/synthetic-speech-in-flash/ http://blog.zacharcher.com/2009/08/27/synthetic-speech-in-flash/#comments Thu, 27 Aug 2009 10:46:44 +0000 Zach http://blog.zacharcher.com/?p=161 Recently, I learned about Linear Predictive Coding ("LPC"). This technique is used in classic arcade games (such as Gauntlet) and the Speak & Spell to synthesize speech.

Here's my first attempt at LPC speech in Flash: (click & explore)

It's great, except for one tiny problem: It sounds horrific. Can you feel the cold, robotic love? This voice will stalk your nightmares.

The phonemes were derived from an unrehearsed recording of my voice. I'm confident that it can be improved. Note that direct LPC encodings of my voice, such as this one, sound more acceptable.

EDIT: I made an iPhone version, "Metal Mouth", with lots of features. Here it is on YouTube and the iTunes Store!

EDIT #2: The source code is available here.

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