speech recognition

OMeR is the printed music recognition add-on for Melody Assistant.

Analyze, synthesize, and manipulate speech.

Task management with speech commands and AppleScript support.

Text-to-speech utility.

Play with OS X's text-to-speech system.

Create text-to-speech ringtones.

Easy and free speech recorder and audio creator

VX-323 is a software instrument that plays real-time synthesized speech.

Vox Machina is a speech synthesizer program for Mac OS X.