Stylophone circuit
I`m not sure exactly which department this topic should go in, but I`ve added Software/MIDI` as the advent of these two things has made the possibility of using...
Simple Graphic Equalizer Circuit
The Circuit is the diagram of a simple three band graphic equalizer circuit. An IC called LF 351 IC is used here....
Audio Distortion Meter Circuit
circuit diagram of audio distortion meter has been described here. Audio distortion meter is used to measure Total Harmonic Distortion....
Audio Clipping Detector Circuit
Clipping is one of the main problems that causes distortion in amplifiers. It causes the amplitude level of a waveform to drop suddenly before it reaches the li...
3 Input Mic Mixer Circuit
Here is the circuit diagram of a 741 IC based 3 input mic mixer ckt. Altogether four 741 IC`s are used out of which IC1, IC2, and IC3....
Preamplifier + tone control circuit based TDA1524A
Preamplifier + tone control circuit based TDA1524A. Tone control circuit module is included in this preamplifier circuit, so you can connect the output channels...
40W 4 channel audio amplifier
With the integrated audio TDA8571J designed for automotive applications, this circuit can expand the sound of the car radio or connect a portable MP3 playerin i...
Preamplifier for magnetic phono cartridges schematics
Circuit IC1 provides a do amplification of 40 dB, which drops to about 20 dB when the frequency rises above 500 Hz. To minimize the (resistor) noise and the loa...
Resistor change
Resistor change in ECM Mic Preamplifier schematic diagram. The electret condenser microphone (ECM) contains a very sensitive microphone element and an internal ...
High quality pc audio amplifier
High quality audio amplifier for computer circuit diagram. The electrical circuit of the amplifier is shown in Fig. 1. For its production is chosen in a typical...
5 watt audio amplifier based LA4460 circuit
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Broadcast Audio from your DX-60
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Ultrasonic sound producer(insect repellent)
As we know many kinds of insects have their tendency to hear ultrasonic sound(which cause them irritation), this project is very useful to swept away those inse...
Using FET 2n3819 simple audio mixer circuit
This circuit, a simple mixer circuit. It can mix two signal channels and one channel is output. Using a codec circuit, Convert stereo audio to mono audio time. ...
Digital Voice Record and Playback Project by ISD2560P
This project is based on ISD2560P IC which allows you to record 60 seconds voice and then playback it with very high quality. As shown in the schematic, the inp...
electronic doorbell using UM3481
The heart of this circuit is the UM3481 IC which can be powered by a 1. 5 volts battery and can be used for electronic doorbell, toys, melody clock, music box, ...
Lm318 Microphone preamplifier with tone control circuit and explanation
This electronic project is a simple microphone preamplifier based on the LM318 op amp. The LM318 op amp is operated as a standard non-inverting amplifier. Resis...
Mini Voice Operated Relay circuit diagram
This is the circuit diagram of a voice operated relay. It similar with sound activation switch circuit which will turn on and turn off (connect and disconnect) ...
PCM2902 Soundcard with Microphone Input Schematic
Many of us have a pair of headphones connected to the output of the computer sound card us either to enjoy songs, or a game. Very likely your headphones and mic...
Subwoofer Filter circuit and explnation
Here is the ambit diagram of an opamp based subwoofer filter. Audio frequencies beneath 200Hz are advised to be in the subwoofer range. So a subwoofer clarify w...