Sound – Audio Projects

A Noise Generator per IEC 268-1, IEC 268-5, and IEC 268-7

A related article on this site: True RMS-To-DC Adaptor for DVM Introduction This project came about when I needed to perform some reliability tests on some headphones according to IEC 268-7. The test requires operating the headphones at their rated input power for a number of hours using clipped pink noise, and muting the noise […]

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AVR RGB LED and Sound Show using ATmega168 microcontroller

The tutorial is well planned and executed. I really liked the RGB LED and Sound show given at the end. I will try it and tell how it works. Till then you can read the rest of the article here. Working with Atmel AVR Microcontroller Basic Pulse Width Modulation (PWM) Peripheral The article also explain

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Visualize ADC data on PC Screen using USART AVR Project using microcontroller

ADC (Analog to digital converter) is a commonly used peripheral. We use it everyday to interface with several analog sensors. Many times a nice visualization of ADC data is required during learning about new sensors. For example you just bought a analog sound sensor, and try to do some fast experiments that how it performs.

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Speaking Calculator using AVR ATmega88 microcontroller

Speaking Calculator using AVR ATmega88 microcontroller

This Speaking Calculator project is an interesting device built just by three chips that can be very useful to blind people. The system has four basic operations (addition, subtraction, multiplication and division), and the functions: clear all, change of sign (+/-), inverse (1/x), square root (v), pi number (p), add with memory (M+) and read

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Controlling SpeakJet with an AVR microcontroller using ATmega88 microcontroller

Core Features: · Programmable, 5 channel synthesizer. · Natural phonetic speech synthesis. · DTMF and other sound effects. · Programmable control of pitch, rate, bend and volume. · Programmable power-up or reset announcements. · Multiple modes of operation. · Simple interface to microcontrollers. · Simple “Stand Alone” operation. · Three programmable digital outputs. · Internal

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PCM Audio Based Door Bell using Atmega32 microcontroller

This is a simple procedure to play PCM audio on any AVR microcontroller. AVR’s high speed PWM is used to play the audio. It almost sound fine and can be used for simple projects that require sound effects. The code is compiled in winavr GCC compiler. The microcontroller used is ATmega32, though any AVR processor

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Blinking, Singing, Marioman using Attiny microcontrollers

Use an attiny13a, two LEDs and a greeting card speaker to create a blinking Marioman that plays the Super Mario Brothers theme song. This can be an easy low-cost project for anyone who is looking for a fun way to break into AVR programming! The notes of the songs are generated by a square wave

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Music Playing Alarm Clock using ATmega644 microcontroller

This Instructable will be about designing a music player from using various building blocks. You will understand the communication between the microcontroller, memory, computer, LCD display, RTC, IR remote, and the music file decoder. I will try my best to to teach you in a way so that you can design your own projects using

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Arduino animatronics- make your awesome costumes more awesome! using ATmega328 microcontroller

Here’s how to add lights, sound and action to your favorite Halloween project using the open source Arduino microcontroller. Arduino is easy to learn to use and it opens up a whole new world for costume builders and creature creators. If you want to learn how to connect wires, servos, LEDs and use sound effects

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