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.
A square wave to Sine wave converter circuit is an important analog circuit that converts square waveforms to sine waveforms. It has a broad spectrum of applications in many different areas of electronics, such as mathematical operations, acoustics, audio applications, inverters, power sources, function generators, etc.
In this project, we will…
Speech recognition technology is very useful in automation which not only gives you hands free control over devices but also adds security to the system. Apart from making voice controlled gadgets, speech recognition also provides significant help to people suffering from various disabilities.
In previous projects we built Arduino based Text to…
Tone control or Active equalizer circuit especially bass, treble, and MID control based Equalizer is an important circuit in audio amplifier design. Generally, three-stage active Equalizer filters require three control bass, treble, and MID. The bass control allows the low frequency to pass but blocks high frequency and the treble control allows the high frequency to pass…
COVID19 is really a historic pandemic affecting the whole world very badly and people are building a lot of new devices to fight with it. We have also built an automatic sanitization machine and Thermal Gun for Contactless temperature screening. Today we will build one more device to help fighting with Coronavirus. It is a cough detection system, which can distinguish…
Nowadays, most of us like to listen to music, with our smartphones. But a few years back, this was not the case, at that point in time, FM radios were the first choice for listening to music, podcasts, news, and others. Nowadays nobody listens to the radio for music, news, and others, grandma and grandpa being an exception.
So, to revive the old…
A potentiometer is a mechanical device using which one can set the resistance according to the desired value, thus changing the current passing through it. There exist many applications for a potentiometer, but mostly, a potentiometer is used as a volume controller for audio amplifiers. The digital volume control circuit is an electronic circuit that accurately adjusts…
Infineon Technologies AG has introduced a self-contained Raspberry Pi audio amplifier HAT (Hardware Attached on Top) board that offers high definition audio at boom box power levels in small form factors. The multi-level technology of the board delivers minimum size and consumption, state of the art power efficiency, and HD audio quality for Raspberry Pi users and makers.…
TT Electronics has expanded its professional audio portfolio with the introduction of five rotary potentiometer families, four slide potentiometers families, and one encoder series. Ideal for a variety of applications found in the professional audio industry like electric guitars, amplifiers, mixers, drum machines, synthesizers, DJ equipment, recording studio controls, and…
RICOH Electronic Devices introduced the RN5T569, a power management multichannel IC (PMIC) for automotive applications that provide four high-efficiency step-down DC-DC converters, seven low-dropout regulators, four GPIOs, an interrupt controller (INTC), and an I2C-Bus interface. The new IC can customize the power supply voltage and the power on/off sequence to meet user-…
Often times, we need to control bass, treble, and volume of our audio signal before passing it through amplification stages to prevent sound distortion. The circuit that amplifies the audio signal before it enters the main speaker amplifier is called an Audio Preamplifier. The use of an audio pre-amplifier ensures good audio quality and provides options to modify our sound…
Who does not like the rumbling tone of a distorted electric guitar? It is a key part of many important genres of music, especially in blues and rock music genres and is also frequently used in hard rock, metal or the punk music genre. In this project, we will build a basic distortion pedal for guitars using a simple circuit. You can also check out the Arduino Guitar Tuner Circuit if you are…
The LA4440 is a very popular dual-channel audio amplifier commonly used to build high power audio amplifiers. The IC is known for its high power, easy availability and cheap price which makes it popular among Home Theatre and Car Amplifier Systems which operate on 12V. Hence in this article, we will learn how to build a High-Power Stereo Audio Amplifier using the LS4440…
