In these simple exercises, we get our hands on speech and other audio signals, and analyse them in various ways. We use the Wavesurfer and Praat tools.
Getting started
Examining sounds with Wavesurfer. Inspecting the same signal in both the frequency and time domains. Various types of sound, including speech.
Analysing sound in Praat
Praat is more powerful than Wavesurfer, and can perform various useful and interesting manipulations of speech.
Fun with TD-PSOLA
For diphone synthesis, systems like Festival need to manipulate the fundamental frequency and duration of recorded speech. TDPSOLA is a popular way to do that.
