Sound related projects

Simple SD Audio Player

This is a simple SD audio player biult with only an 8-pin microcontroller. The ATtinyX5 series (25/45/85) 8-pin AVR microcontroller has two fast PWM outputs in 250kHz carrier frequency. This enables to output a wide frequency range audio signal.[more]

Posted in : AVR projects | Audio and Video | Sound related projects

Picaxe Metronome

This simple metronome does just the trick by providing an adjustable tempo with slightly stronger first beat of each measure. Here are some features:Adjustable tempo between 60-240 BPM, Selectable 3/4 and 4/4 time , First beat of each measure is accentuated [more]

Posted in : MIDI related projects | PIC projects | Sound related projects

Aurora’s Sound Generator

This project was designed and implementation of the device that converts the light collected by the phostherion into the sound of the Aurora Borealis.The conversion is done by a computer program running on a microprocessor.[more]

Posted in : PIC projects | Sound related projects

Diesel and Horn sound module for model

Without using a computer chip this analog design is still a challenging task and of course it still lacks that realistic sound created by the natural effect elements of reverbaration ,sustain and doppler effects that we love to hear at night.The 555 timer is really a poor replacement for the LM566 as a VCO (Voltage controlled oscillator ) although it is linear in function a negative voltage range is needed to activate the timer and produce the RPM to relate to the actual engine speed thus the op-amp is used to invert the track positive voltage .? [more]

Posted in : Radio control projects | Sound related projects

Engine Sound Synthesizer for Electric Airplanes

This page describes an airplane sound generater system using Tini2138 module. It’s main innovation is that the pitch of the engine sound is proportional to the speed of the propeller.Tini2138 module is a tiny module with a powerful LPC2138 ARM7-TDMI CPU from NXP running at 60MHz. The sounds were extracted from engine sound files that are provided with various flight simulator models. [more]

Posted in : Radio control projects | Sound related projects