Introduction For our ECE 4760 final project, we designed and built an array of 12 independently-controllable speakers to implement an acoustic phased-array system. The system samples a standard audio input signal at approximately 44.1 kHz, and then outputs this signal to each of 12 speakers, each with a variable delay. The idea behind a phased-array […]
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I have a pretty cool workplace where we’re all about fun pranks. One of the programmers I sit next to has a habit of banging on his desk a lot when he is frustrated. I decided it would be a fun prank to hook up a LinkIT ONE and some sensors to his desk to
We see in all house we have calling bells. We go and search for the switch and Ring the bell. IF no one is in home we don’t know it and ring the bell again and again. To over come that in this project i make Intelligent Calling Bell. Which sense the incoming person coming
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Keep an eye on your beloved bbies and play music or tell ’em to be quiet while you are away! This tutorial will show how to use a Raspberry Pi computer to monitor the volume of sound in your home (via the Cloud) to see if and when your pet is upset. Drum roll… the
An ATMega32 sound generator code is extremely simple to implement. Almost any GPIO pin can drive a piezo buzzer, and the output quality is fine for producing some beeps. The code shown here is the simplest one I remember using basic physics, and since it does not use PWM it could be implemented on almost
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Traditional speakers produce sound by using an electromagnet to move a flexible cone back and forth. They use drivers to help translate electrical signals into physical vibrations so that you can hear recorded sounds. A tweeter is the type of speaker driver that produces the highest range frequency. The other two main drivers are woofers
What is a speaker tweeter? Read More »
5: Bluetooth Car Stereos Just because a vehicle didn’t come straight from the dealer ready to connect to Bluetooth doesn’t need to deter you from upgrading. There are stereos on the market that can have you hooked up and ready to go in no time. These devices help sync everything together and provide you with
5 Bluetooth Car Accessories Read More »
