chimes

Procedural wind chimes sound simulator in C.

Based on the article:

"Modal Synthesis of Wind Chime Sounds with Stochastic Event Triggering"

by Teemu Lukkari and Vesa Välimäki, 2004

Audio output thanks to RtAudio.

Building

mkdir deps
cd deps
git clone https://github.com/thestk/rtaudio.git -b 5.2.0
cd rtaudio
./autogen.sh
./configure --prefix=$PWD/../../local
make
make check
make install
cd ../..
mkdir build
cd build
cmake ..
make

Running

./chimes

You should hear wind chimes triggered by simulated random wind gust.

In the directory rp2040 there is a Pi Pico board app generating the sound via PWM. At sample rate 11025Hz it barely makes it at CPU clock speed of 280MHz. Still fairly impressive taking into account that it's Cortex M0+ without FPU.

Other

• modesynth - Python scripts for extracting modes from a WAV file