Digital Audio Signal Processing — Zölzer

Udo Zölzer, 3rd Edition (Wiley, 2022)

The reference on digital audio signal processing, from the converter to the effect. The first part fixes the signal path — quantization, dither, and noise shaping; sample-rate conversion; and AD/DA conversion with oversampling and delta-sigma modulation — as the audio-domain refinement of the quantization and multirate theory of the digital-signal-processing phase. The second part is the algorithms that are audio processing: parametric equalizers and fast convolution, room simulation and reverberation, dynamic range control, and the psychoacoustic coding that decides what can be thrown away. The 3rd edition adds chapters on nonlinear/virtual-analog processing and on machine learning for audio (feedforward and convolutional networks).

Worked in Course 1 — the digital audio processing phase: Week 18 (quantization, sample-rate conversion, and AD/DA, Ch. 1–4) and Week 19 (equalizers, room simulation, dynamic range, and coding, Ch. 6–10), then Ch. 11 (machine learning for audio) as part of the learned-signal-processing capstone in Week 20. Every chapter carries an exercise set, worked by hand.

Chapters

Exercises added as I work through each chapter.