Circuits & Schematics Audio - 5

All waveforms, no matter what you scribble or observe in the universe, are actually just the sum of simple sinusoids of different frequencies. Hi, I am just refreshing the basics of fourier transform. I am not an expert. Now I did a small audio ...

On my desktop PC I have a speakers and a headphones. Usually I use headphones, but when I need to switch to speakers I need to physically plug in speakers instead of headphones to my PC’s soundcard. I wanted to solve this problem for a long ...

Nico Ras, South Africa Project Summary My passion for excellence progressed over the past 40 years to developing sonically superior amplifiers to the highest possible standards, providing life like sound performance. Project Description I am ...

IC1: MAX2606 L1: 390nH Voltage Supply: 3 - 5V Frequency: 88 - 108MHz A simple FM transmitter links your home-entertainment system to a portable radio that can be carried around the house and into the back yard. For example, you can play music on ...

Part 1 - Schematic In the mode Pin-to-Pin (mode 1) to perform a song you have to select the track number using binary inputs IN1, IN2, IN3, IN4, IN5 and IN6 and then run the selected file simply giving a ground pulse on the PLAY line. Applying ...

This embedded MP3 module is an universal and compact circuit for playing MP3 audio files. The MP3 module can be used in embedded systems. The MP3 files (up 65,536) are stored in a micro SDcard. Controlling the module could be done either by buttons ...

This is a precision 15V regulator on a single side PCB. The circuit is based on EB-802 with design by zerosoft on www.headphoneamp.co.kr . I have replaced some components that easy to find in the market and design a new PCB that look like symmetry ...

Rotary encoders are very versatile input devices for microcontroller projects, not only do they provide 360 degrees of rotational freedom they also allow digital positioning information to be gained without the use of analogue to digital converters ...

Part 1. Schematic Supported Sound Formats and Control Commands Supported sound file format is RIFF/WAVE in LPCM, 8/16bit, mono/stereo and 8kHz-48kHz. Any other sound files, such as ADPCM, MP3 and AAC, must be converted into the PCM. The sound files ...

This is a simple sound generator based on 8-pin SD Audio Player . It is built with an Atmel ATtiny861 microcontroller from Atmel and an SD memory card. The tiny861 has fast PWM outpus like tiny85 so that it can generate clear sound compared to any ...