Audio Electronics
Audio Electronics deals with the circuits that are designed for converting sound/pressure wave signals to electrical signals, or vise versa. These circuits are used to processes and manipulate audio signals to design different types of audio amplifiers, audio mixers, frequency controllers etc..
This section consists of a huge collection of audio circuits with schematics and detailed explanation, to help you build Audio projects and use them for your Audio designs.
DIY Musical Doorbell Circuit using UM66T
Doorbell is a very common and useful device used in every household. Among electronics students and hobbyists, the doorbell...
Dog Barking Security Alarm using Arduino, PIR Sensor and Dog Barking Sound Module
The need for home security alarm systems nowadays is a serious demand. As the number of crimes is increasing every day, there...
Simple Arduino Voice Recorder for Spy Bug Voice Recording
Planning to buy a small voice recorder to record voices or sounds in an environment and store them in its memory? Think again!...
Build a Simple Stereo Audio Amplifier Board using TDA2822
An audio amplifier is an Electronic circuit that amplifies low-power audio signals to a level suitable for driving Loudspeaker...
Building a Wailing Siren Circuit using a 555 Timer IC
If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable...
How to Build a High Efficiency Class-D Audio Amplifier using MOSFETs
Audio content has come a long way over the past decades, from a classic tube amp to modern-day media players, technological...
DIY ESP32 Based Audio Player
DIY Music players are fun to build, and we previously built a few music players using Arduino and a dedicated MP3 module. Now...
Speech Recognition using Arduino
Speech recognition technology is very useful in automation which not only gives you hands free control over devices but also...
Audio Equalizer / Tone Control Circuit with Bass, Treble and MID Frequency Control using Op-Amp
Tone control or Active equalizer circuit especially bass, treble, and MID control based Equalizer is an important circuit in...
Cough Detection System using Arduino 33 BLE Sense and Edge Impulse
COVID19 is really a historic pandemic affecting the whole world very badly and people are building a lot of new devices to...
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Understanding the Fundamentals of Digital Audio
On average, 2500 songs are uploaded every hour on Spotify, Apple Music, YouTube, and other streaming platforms which makes 60,...
Superheterodyne AM Receiver - Working with Block Diagram and Schematics
A superheterodyne receiver uses signal mixing to convert the input radio signal into a steady intermediate frequency (IF) that...
Pi Filter - Overview, Working, Construction, Application and Design Tips
Filters are commonly used in power and audio electronics to reject unwanted frequencies. There are many different types of...
Electromagnetic Interference (EMI) – Types, Standards and Shielding Techniques
Certification is usually one of the most expensive and tedious stages during the development of a new hardware product. It...
Different Types of Transformers and Their Applications
A transformer is a widely used device in the electrical and electronics domain. It is an electromagnetic device which follows...
Audio Transformer
What is a Transformer?
A transformer is a static electrical device that transfers energy between two or more circuits through...
RC, RL and RLC Circuits
The whole of electronics components can be slip into two broad categories, one being the Active components and the other as...
Active High Pass Filter
Previously we described about Passive High Pass Filter and Active Low Pass Filter, now it is time for Active High pass filter....
Passive High Pass Filter
Previously we discussed Passive Low Pass Filter, now it is the time to look insight of passive high pass filter.
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Passive Low Pass Filter
This tutorial is about Passive Low Pass Filter, a widely used term in Electronics. You will hear or use this ‘technical’ term...
Analog Piezoelectric Voice Accelerometer that Enables High Fidelity Voice Pickup in Small Hearable Devices
VA1200 from Vesper is the piezoelectric MEMS voice accelerometer that enables high-fidelity Voice Pickup (VPU) in earbuds, TWS...
New High-Resolution Audio Amplifier Designed for Compact, Cost-Effective Automotive Applications
The HFDA801A from STMicroelectronics is a high-resolution audio amplifier that is specifically designed for compact, cost-...
Class-D Automotive Audio Amplifier with Hi-Fi Audio Quality and Advanced Diagnostics for Compact Audio and Alerting Systems
The HFDA801A from STMicroelectronics is a 2MHz switching pulse-width modulation (PWM) Class-D amplifier designed for compact,...
Fully Integrated Single-Chip Ethernet Audio Endpoint Controller for Vehicle Ethernet Audio Video Bridging (AVB)
LAN9360 from Microchip is the recently released fully integrated AVB audio endpoint solution that helps in reducing development...
Raspberry Pi Audio Amplifier HAT from Infineon for Active Speakers with Wireless Music Streaming
Infineon Technologies AG has introduced a self-contained Raspberry Pi audio amplifier HAT (Hardware Attached on Top) board that...
TT Electronics announces Wide Range of Pro-Audio Potentiometers with Customizable Options for Audio Industry
TT Electronics has expanded its professional audio portfolio with the introduction of five rotary potentiometer families, four...
Programmable Power Management IC (PMIC) from RICOH for Automotive Audio Equipments and Navigation Systems
RICOH Electronic Devices introduced the RN5T569, a power management multichannel IC (PMIC) for automotive applications that...
TLV320ADC5140 - New audio ADC for far-field Voice capturing in Smart Speakers
Texas Instruments has introduced the TLV320ADC5140, a new audio analog-to-digital converter that can capture clear audio up to...
CoolGaN 400V and CoolGaN 600V Devices for Premium HiFi audio systems and Low power SMPS applications
Infineon Technologies has introduced two new devices CoolGaN 400V and CoolGaN 600V, to its portfolio of CoolGan devices. The...
Bluetooth 5.0-qualified dual-mode solutions for wireless audio designs
To help Bluetooth speaker and headphone manufacturers maintain product differentiation in the competitive wireless audio...