Sound – Audio Projects Archives - Page 17 of 18

Quiz Game Controller using “Lights and Sounds Buzzers” and Arduino

Jeopardy style quiz games are favorites for creating excitement and educational instruction at the same time. Teachers, summer camp counselors, and even industry educators find this type of game to help generate interest and involvement from the participants. The idea behind the game is simple, but sometimes finding a device that will perform the “first

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Midi Light Show using Arduino

Projects, Sound – Audio Projects / By Ibrar Ayyub

For a class, my teammate and I decided to develop a MIDI based system that has a responsive light for each note played. For example, if you plug our little setup to a keyboard, pending on which note you press, you’ll get a specific color. You’ll need a list of several items, but the reward

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Arduino Esplora Microphone (Sound Sensor)

Projects, Sound – Audio Projects / By Ibrar Ayyub

This sketch shows you how to read the microphone sensor. The microphone will range from 0 (total silence) to 1023 (really loud). It uses the sound level to set a brightness level for the green LED. When you’re using the sensor’s reading (for example, to set the brightness of the LED), you map the sensor’s

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Make Voice Call using Arduino

Phone Projects, Projects, Sound – Audio Projects / By Ibrar Ayyub

This sketch connects a voice call from your GSM shield and Arduino to a remote phone number entered through the serial monitor. You’ll need to attach a speaker and microphone to hear the connected phone and send your voice. First, import the GSM library #include <GSM.h> SIM cards may have a PIN number that

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Using switch to control Piezo speaker with Arduino

Projects, Sound – Audio Projects / By Ibrar Ayyub

In this project, we will learn how to use a speaker (peizo sounder) and use switch button to change the pitch of the sound. Sorry about this one, you might find it a bit difficult to digest at first, and I didn’t realise it’s actually harder than it sounds. Anyway, spend some time on the code,

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An amplifier for Arduino

Interfacing(USB – RS232 – I2c -ISP) Projects, Projects, Sound – Audio Projects / By Ibrar Ayyub

For my project, the Arduino output is not enough so digging on the net and asking to a friend some help, I managed to build an amplifier to feed my 3 computer fans. This circuit can be used as an amplifier to switch on and off a DC motor and to regulate its spinning speed

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Audio VU Meter using Arduino

Metering – Instrument Projects, Projects, Sound – Audio Projects / By Ibrar Ayyub

Biasing AC input using resistor divider and scaling up / down if necessary; Sampling fast and accurately using direct access to Control Registers of ADC and Timer1; Subtract whatever was added at step #1 from result of Analog / Digital conversion and Square; Average / accumulate, filtering following VU specification; Sqrt – take square root,

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True Analog Audio Volume Control using Arduino

Projects, Sound – Audio Projects / By Ibrar Ayyub

ow my Arduino can precisely measure audio input (VU meter), and obviously, next thing that comes to mind right after measurements, is regulation or control. There are many different ways how to electronically adjust audio volume or level of AC signal. I’ll name a few: Specifically design IC, Digital potentiometers. Mechanical potentiometers, driven by servo

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Audio VU meter with Extra wide Dynamic Range 69 dB using Arduino

Metering – Instrument Projects, Projects, Sound – Audio Projects / By Ibrar Ayyub

O’K, after having some fun with stereo version of the VU meter I described in my previous blog-post, now it’s time to do a serious stuff. Studio grade VU meter !!! 24 steps, equally spaced every 3 dB, covering Extra wide Dynamic Range from -63 up to +6 dB. Single (mono) channel this time, no messing around,

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Sound Localization using Arduino

Projects, Sound – Audio Projects / By Ibrar Ayyub

In theory, it is quite simple to perform sound localization by measuring the phase difference of signals received by two microphones that are far apart in space. The devil is always in the details. I have not come across any project made for Arduino like this before, and I am wondering if it is even

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