In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain. Humans can only hear sound waves as distinct pitches when the frequency lies between about 20 Hz and 20 kHz. Sound waves above 20 kHz are known as ultrasound and are not perceptible by humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges.
“This is the EmTronic mini synth, it’s a super simple Arduino powered noise maker that I have designed to be easy to build and only requires easy to buy parts. This little synth allows you to control frequency, modulation …
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“Last summer, I made an ESP8266 MP3 Sound Machine using ESPHome to play calming sounds when my son goes to sleep. I used ESPHome to develop the firmware so it could communicate with my Home Automation platform, Home Assistant. Well …
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“Today, we are going to be using 555 timers to create some musical instruments! We will be building a theremin, organ, and an Atari Punk Console. I used this activity in my classroom to celebrate graduating from discrete components to …
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“First and foremost, I have to give a massive shout out to Pete McBennett who designed this awesome circuit. When I came across it on YouTube I couldn’t believe the sound that he managed to get out of a …
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“In this guide I will show how you can make your very own bass/guitar pre-amplifier and effects box. I choose to make a hybrid effect box, which mixes the common Black Ice or Electra Distortion distortion effect with the …
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“This build is based around a great little reverb module you can get on eBay for under $5. Ive used it now in a couple of projects (listed below) but this time I wanted to have a stand along reverb …
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“Hello everyone ! I’m a lasercut fan since three years for now, and always been a bit curious about mechanical computers. Those mechanism This instructables will help you to make your own signal synthetizer designed to be cut in wood …
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“Build a retro sounding 8-Bit Sound Generator and control it through MIDI.This design is partly inspired by Chiptune enthusiasts building Arduino circuits to play Chiptune files and some of my own ideas to integrate the sound of early video …
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“Here you will find everything you need to make the Daisy mp3 player. All the source files, hex files, EAGLE cad files, and documents are here. This is the official Make: mp3 player available here or at the Make: store …
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“2 x 16-band audio spectrum analyzer with Arduino Nano and 2 x 16 chars LCD display. This project is based on Shajeeb’s project. This little and easy-to-do project is based on an idea to represent audio spectrum data: 32-Band …
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