
Three Pillars of Sound Science

Music Theory
Scales · Chords · Intervals · Progressions
Explore the mathematical foundations of music. Understand how scales are constructed, how chords derive from harmonic series, and how chord progressions create emotional movement.
12+
Scales
20+
Chord Types
13
Intervals
Open Module

Signal Processing
Waveforms · FFT · Filters · Oscilloscope
Visualize sound as a mathematical signal. Decompose complex waveforms via Fourier analysis, explore filter responses, and understand how digital audio processing works.
5
Waveforms
4
Filter Types
1024
FFT Bins
Open Module

Acoustics
Mechanical Waves · Resonance · Doppler · dB
Dive into the physics of sound as a mechanical wave. Study wave propagation, compression and rarefaction, the Doppler effect, resonance, and the decibel scale.
3
Wave Types
343 m/s
Speed in Air
20–20k Hz
Hearing Range
Open Module
343 m/s
Speed of Sound (air, 20°C)
440 Hz
Concert A Pitch
20 Hz – 20 kHz
Human Hearing Range
130 dB SPL
Pain Threshold
ISO 16 · A4 = 440 HzMIDI 1.0 Spec · MMA/AMEI 1983f = 440×2^((n−69)/12)DFT: X[k] = Σ x[n]·e^(−j2πkn/N)
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