Schaedler – Seeing Circles, Sines and Signals

A very nice concise primer on the basic components of digital signal processing with great visual demonstrations.

Practical Phonetics

Videos for the course Practical Phonetics

Plag (2003) – Word formation in English: Chapter 1 Basic Concepts

An introductory text of word structure/morphology in English. Useful to read if you come from a non-linguistic background.

Peterson & Barney – Control Methods Used in a Study of the Vowels

Examines the production and perception of vowels. This is a classic paper that many other studies on have built on.

Normal Speech Articulation

X-ray movies of speech

Lyons – Understanding Digital Signal Processing

A great introduction to digital signal processing, including the maths!

Ladefoged & Johnson – A course in phonetics – Online examples

An Introduction to articulatory phonetics and speech acoustics

Ladefoged & Johnson – A course in phonetics – Chapter 8 – Acoustic phonetics

Links the source-filter model to spectrograms and acoustic analysis of speech.

Ladefoged & Johnson – A course in phonetics – Chapter 2 – Phonology and Phonetic Transcription

Basics of phonology and phonetic transcription. Read this over Speech Processing modules 1 and 2.

Ladefoged & Johnson – A course in phonetics – Chapter 1 – Articulation and Acoustics

An Introduction to articulatory phonetics and speech acoustics

Ladefoged (Elements) – Chapter 8 – Resonances of the vocal tract

A more detailed look at how resonance occurs in the vocal tract, and how that can be used to explain the sound quality (e.g. formant frequencies) of vowel sounds.

Ladefoged (Elements) – Chapter 7 – The production of speech

Some phonetics at last, and a first encounter with the source-filter model of speech.