Cross-linguistic distribution of vowel systems
Cho & Ladefoged – Variation and universals in VOT: evidence from 18 languages
Voice onset time (VOT) is known to vary with place of articulation.
Carr – English Phonetics and Phonology: An Introduction – Ch 5 – The Phonemic Principle
Takes you from phonetics (which is about sound) to phonology (which is about mental representation and organisation into categories).
Ladefoged & Johnson – A course in phonetics – Chapter 8 – Acoustic phonetics
Links the source-filter model to spectrograms and acoustic analysis of speech.
Introduction to the IPA from the Handbook of the International Phonetic Association
Describes the aims of the International Phonetic Alphabet and its various uses.
Practical Phonetics
Videos for the course Practical Phonetics
Normal Speech Articulation
X-ray movies of speech
Seeing Speech
Interactive IPA chart
Taylor – Section 12.7 – Pitch and epoch detection
Only an outline of the main approaches, with little technical detail. Useful as a summary of why these tasks are harder than you might think.
Jurafsky & Martin – Section 8.5 – Unit Selection (Waveform) Synthesis
A brief explanation. Worth reading before tackling the more substantial chapter in Taylor (Speech Synthesis course only).
Furui et al: Fundamental Technologies in Modern Speech Recognition
A complete issue of IEEE Signal Processing Magazine. Although a few years old, this is still a very useful survey of current techniques.
Holmes & Holmes – Chapter 9 – Stochastic Modelling
May be helpful as a complement to the essential readings.