iPhone App › Add voice recognition? [closed]

I'd like to build an app that uses voice recognition. I've seen big companies like Google etc implement this feature, but I'm curious about doing it on a start-up level. Anyone looked into this? Are there any tools out there for us to do this?


OpenEars looks promising... http://www.politepix.com/openears/

Based on Pocket Sphinx.


If you start here at wikipedia, you'll get a good list engines (http://en.wikipedia.org/wiki/Speech_recognition#Commercial_software.2Fmiddleware)

As I write this (June 24, 2009) it looks to me that are two viable open source solutions

  • Pocket Sphinx (http://www.speech.cs.cmu.edu/pocketsphinx)
  • Julius (http://en.wikipedia.org/wiki/Julius_(software))

Both have been used in iphone apps, but the iphone friendly source isn't readily available.

As I edit this (8 July, 2009) I recently learned that Loquendo (http://www.loquendo.com/en/) has voice recognition and speech synthesis (ASR & TTS) for the iphone.


The best approach will probably be to:

  1. Record the voice on the phone
  2. Send the recording to a server that runs the speech recognition software
  3. Then return something to the phone to indicate what it should do