Wavecatcher

Anfractuosity published a new build: “Acoustic cryptanalysis is a type of side channel attack that exploits sounds emitted by computers or other devices” Wavecatcher is a simple PCB that makes use of a MEMS ultrasound microphone, in order to capture audio to around 80kHz, with the goal of finding interesting ultrasound sources and playing with […]

Lo-Fi SES: Hackable 8-bit chiptunes instrument

Here’s an interesting open source project on Kickstarter the Lo-Fi SES (Sound Entertainment System) by Assorted Wires: The Lo-Fi SES (Sound Entertainment System) makes the process of playing an instrument easy by providing a video game controller interface for the lo-fi instrument. The d-pad allows you to change or record tracks, the buttons play the various sounds, […]

Propeller Halloween pumpkin project

This project uses a Parallax Propeller Project board with microSD card attached, PIR sensor, LM386 Audio Amp, IRL520 FET and associated discrete components to make an animated Halloween prop. The PIR inside the pumpkin senses motion and when triggered it plays a WAV file from a microSD Card while flashing an internal light, causing an […]

SIDCog v1.3 produces C64 sound on Propeller

Johannes Ahlebrand has released version 1.3 of SIDCog. This Spin language object emulates the famous sound chip in the Commodore 64 running in a single Propeller cog. The developer reports it’s much closer to the 8580 than the 6581 when it comes to filter emulation and combined waveforms. Features include a 31kHz sample rate, >16bit […]

Xmas tree with sound-controlled LED animations

Sound controlled LED light show for your Xmas tree.  An STM32 microcontroller takes instructions from a PC via Bluetooth and animates the LEDs. This is my Christmas tree, it has over 400 lights (exactly 404) that are all individually controlled by an STM32 microcontroller. The computer plays the music and processes the sync track for […]

Milkymist™ open source sound visualizer

The Milkymist™ is an open source sound visualization tool. Its said to be one of the fastest open source systems on a chip capable of running uClinux. It features the LatticeMico32 processor core on a Spartan-6 FPGA (XC6SLX45). The project developed from Sebastien Bourdeauduca’s Master’s Thesis in system-on-chip design. The Milkymist™ project develops a comprehensive […]

C64 sound on Parallax Propeller

The eight-core Parallax Propeller is capable of some pretty amazing things. One use developed by Johannes Ahlebrand is to emulate the famous Commodore 64 sound chip. His SIDcog V 1.0 code object allows the Propeller to accurately emulate an original C64 SID chip. With this code, your Prop can produce retro C64 game sounds like […]