If you understand basic mathematics and know how to program with Python,
youâ re ready to dive into signal processing. While most resources start
with theory to teach this complex subject, this practical book
introduces techniques by showing you how theyâ re applied in the real
world. In the first chapter alone, youâ ll be able to decompose a sound
into its harmonics, modify the harmonics, and generate new sounds.
Author Allen Downey explains techniques such as spectral decomposition,
filtering, convolution, and the Fast Fourier Transform. This book also
provides exercises and code examples to help you understand the
material.
Youâ ll explore:
- Periodic signals and their spectrums
- Harmonic structure of simple waveforms
- Chirps and other sounds whose spectrum changes over time
- Noise signals and natural sources of noise
- The autocorrelation function for estimating pitch
- The discrete cosine transform (DCT) for compression
- The Fast Fourier Transform for spectral analysis
- Relating operations in time to filters in the frequency domain
- Linear time-invariant (LTI) system theory
- Amplitude modulation (AM) used in radio
Other books in this series include Think Stats and Think Bayes, also
by Allen Downey.