Programming and Customizing the Multicore Propeller Microcontroller: The Official Guide

12SYNTHESIZING SPEECH WITH THE PROPELLER

Chip Gracey

Introduction

Have you ever wondered how to make a human voice in software? I’ve always been tantalized by the idea, since speech is perhaps the ultimate analog communication protocol. It certainly predates computers by a long time! In this chapter, we are going to “look” at actual speech and then synthesize it with the Propeller using small amounts of data. Here’s what’s in store:

Using spectrographs to “see” speech

Synthesizing formants, vowels, and making speech sound like speech

Exploring ...