Bytebeat is a fascinating genre of audio programming where complex, evolving chiptune-like music is generated by a single line of code. Usually expressed as a formula in the C language, bytebeat evaluates an incrementing time variable ( t ) and outputs an 8-bit audio signal.
Then pipe the output into a ByteBeat player or compile it.
Bytebeat formulas typically output raw sample values (0–255 for unsigned 8-bit audio). To represent pitch, you need to generate a periodic wave. The simplest mapping is:
Therefore, conversion relies on a specific technique: Waveform Lookup and Bitwise Modulation . midi to bytebeat
: The foundational work for bytebeat is widely attributed to Ville-Matias Heikkilä (viznut) in 2011. While not a formal academic paper, his article Algorithmic music with one line of C explains how bitwise operations generate complex melodies and rhythms from a simple time variable ( ), which serves as the "score" in these systems.
import numpy as np import pyaudio
Note: 60, start=0, end=44100, vel=100 Note: 64, start=22050, end=66150, vel=80 Bytebeat is a fascinating genre of audio programming
A protocol that transmits performance data—such as pitch, velocity, and duration—rather than actual audio. It relies on external synthesizers to interpret these commands into sound.
I’ve released a small Python script to get you started:
Bytebeat is a simple, yet expressive, method of generating music algorithmically. It involves creating music using mathematical expressions that are evaluated for each sample in audio output. Typically, these expressions manipulate the sample position (often referred to as "time") to produce melodies, rhythms, and harmonies. The term "bytebeat" comes from the fact that these algorithms often operate on individual bytes (8-bit values) of digital audio data. : The foundational work for bytebeat is widely
While they are fundamentally different, creators often bridge these worlds: Websynth - stellartux
# Play audio p = pyaudio.PyAudio() stream = p.open(format=pyaudio.paInt16, channels=1, rate=sample_rate, output=True)
A classic bytebeat program follows this pattern:
python midi2beep.py -file your_melody.mid -merge -export arduino
If your MIDI file has chords, you must mix the audio bytes. In bytebeat, mixing is achieved through addition or bitwise blending.