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Practical audio DSP projects with the ESP32

easy and affordable digital signal processing

Dogan Ibrahim, Ahmet Ibrahim (Autoren)

Buch | Softcover

254 Seiten

2023 | 1. Auflage
Elektor (Verlag)
978-3-89576-567-4 (ISBN)

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Inhaltsverzeichnis (PDF)

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lt;p>The aim of this book is to teach the basic principles of Digital Signal Processing (DSP) and to introduce it from a practical point of view using the bare minimum of mathematics. Only the basic level of discrete-time systems theory is given, sufficient to implement DSP applications in real time. The practical implementations are described in real time using the highly popular ESP32 DevKitC microcontroller development board. With the low cost and extremely popular ESP32 microcontroller, you should be able to design elementary DSP projects with sampling frequencies within the audio range. All programming is done using the popular Arduino IDE in conjunction with the C language compiler.

After laying a solid foundation of DSP theory and pertinent discussions on the main DSP software tools on the market, the book presents the following audio-based sound and DSP projects:

Using an I²S-based digital microphone to capture audio sound
Using an I²S-based class-D audio amplifier and speaker
Playing MP3 music stored on an SD card through an I²S-based amplifier and speaker
Playing MP3 music files stored in ESP32 flash memory through an I²S-based amplifier and speaker
Mono and stereo Internet radio with I²S-based amplifiers and speakers
Text-to-speech output with an I²S-based amplifier and speaker
Using the volume control in I²S-based amplifier and speaker systems
A speaking event counter with an I²S-based amplifier and speaker
An adjustable sinewave generator with I²S-based amplifier and speaker
Using the Pmod I²S2 24-bit fast ADC/DAC module
Digital low-pass and band-pass real-time FIR filter design with external and internal A/D and D/A conversion
Digital low-pass and band-pass real-time IIR filter design with external and internal A/D and D/A conversion
Fast Fourier Transforms (FFT)

Dogan Ibrahim holds a BSc (Hons) degree in Electronic Engineering, an MSc degree in Automatic Control Engineering, and a PhD degree in Digital Signal Processing and microprocessors. Dogan has worked in many organizations and is a Fellow of the Institution of Engineering and Technology (IET) in UK and is a Chartered electrical engineer. Dogan has authored over 100 technical books and over 200 technical articles on electronics, microprocessors, microcontrollers, and related fields. Dogan is a certified Arduino professional and has many years of experience with almost all types of microprocessors and microcontrollers.

Ahmet Ibrahim holds BSc (Hons) and MSc degrees in the fields of computing, software, and networking. Ahmet has held positions in many industries involved in enterprise computing. He enjoys advising, designing, and implementing complex cloud and on-premises computer systems.

Erscheinungsdatum	24.07.2023
Verlagsort	Aachen
Sprache	englisch
Maße	170 x 235 mm
Einbandart	kartoniert
Themenwelt	Technik ► Elektrotechnik / Energietechnik
Schlagworte	Audio • digital signal processing • DSP • ESP32 • Projects
ISBN-10	3-89576-567-8 / 3895765678
ISBN-13	978-3-89576-567-4 / 9783895765674
Zustand	Neuware