Hack Audio: An Introduction to Computer Programming and Digital Signal Processing in MATLAB

Computers are at the center of almost everything related to audio. Whether for synthesis in music production, recording in the studio, or mixing in live sound, the computer plays an essential part. Audio effects plug-ins and virtual instruments are implemented as software computer code. Music apps are computer programs run on a mobile device. All these tools are created by programming a computer.

Hack Audio: An Introduction to Computer Programming and Digital Signal Processing in MATLAB

provides an introduction for musicians and audio engineers interested in computer programming. It is intended for a range of readers including those with years of programming experience and those ready to write their first line of code. In the book, computer programming is used to create audio effects using digital signal processing. By the end of the book, readers implement the following effects: signal gain change, digital summing, tremolo, auto-pan, mid/side processing, stereo widening, distortion, echo, filtering, equalization, multi-band processing, vibrato, chorus, flanger, phaser, pitch shifter, auto-wah, convolution and algorithmic reverb, vocoder, transient designer, compressor, expander, and de-esser.

Throughout the book, several types of test signals are synthesized, including: sine wave, square wave, sawtooth wave, triangle wave, impulse train, white noise, and pink noise. Common visualizations for signals and audio effects are created including: waveform, characteristic curve, goniometer, impulse response, step response, frequency spectrum, and spectrogram. In total, over 200 examples are provided with completed code demonstrations.

Table of Contents

Chapter 1. Introduction
Chapter 2. Basics Of Programming In Matlab®
Chapter 3. Basics Of Audio In Matlab®
Chapter 4. Matlab® Programming Environment
Chapter 5. Logicals And Control Structures In Programming
Chapter 6. Signal Gain And Dc Offset
Chapter 7. Introduction To Signal Synthesis
Chapter 8. Digital Summing, Signal Fades, And Amplitude Modulation
Chapter 9. Stereo Panning And Mid/Side Processing
Chapter 10. Distortion, Saturation, And Clipping
Chapter 11. Echo Effects
Chapter 12. Finite Impulse Response Filters
Chapter 13. Infinite Impulse Response Filters
Chapter 14. Delay Buffers And Fractional Delay Interpolation
Chapter 15. Modulated Delay Effects
Chapter 16. Algorithmic Reverb Effects
Chapter 17. Amplitude Envelope Effects
Chapter 18. Dynamic Range Processors