Circuit Lake

Electronic Project and Circuit Collection

Audio Related Resources

Arduino MP3 Player

March 15, 2013 By: admin Category: Arduino, Audio, Microcontroller, Miscellaneous No Comments →

This mp3 player project is built based on Arduino Mega. It is equipped with STA013S MP3 decoder, an SD card for storage, and a nokia LCD for display. When it is turned on, first it checks all the hardware is working, then updates the song library using tag from song. The player has features like […]

AVR Auto Composing Piano

January 27, 2013 By: admin Category: Audio, AVR, Miscellaneous No Comments →

This ATmega644-based smart piano can composes music of your own taste automatically. What you have to do is select a mood of the music and play two notes upon which the music is based, and then let the piano create the music for you. You can also train the piano by first playing several pieces […]

Stereo Audio with Arduino

December 10, 2012 By: admin Category: Arduino, Audio No Comments →

The project shows you how to use Arduino and TLC7528 to produce stereo audio, 2 independent channels of audio. With stereo audio you can achieve some interesting and quite fun auditory effects since each ear is hearing its own independent channel of sound, for example, “3D audio” spatial effects, binaural beats, and panning.

Easy Voice Commander

February 05, 2012 By: admin Category: Audio, Control, Digital, Interfacing, Microcontroller, Miscellaneous, Renesas No Comments →

The purpose of the project is to build uncomplicated voice recognition system based on M32C/84 microcontroller. The main part consists of telephone, some amplifiers, and development board. The project used to operational amplifiers in the analog part, the first one, provide amplification to the signal of 220mV p-p generated by signal transducer (a microphone electret) […]