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Sound Analyzer

Spectral analysis and harmonic decomposition. Demo data from the University of Iowa Electronic Music Studios recordings.

Demo Instruments

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Supported: WAV, MP3, OGG, M4A

Spectral Metrics

Fundamental440 Hz (A4)
Spectral Centroid1236 Hz
Partials measured10
Brightness (centroid ratio)2.81

Harmonic Spectrum

Relative amplitude of each harmonic partial. Source: University of Iowa EMS.

1st (A4, 440Hz)2nd (A5, 880Hz)3rd (E6, 1320Hz)4th (A6, 1760Hz)5th (C#7, 2200Hz)6th (E7, 2640Hz)7th (G7, 3080Hz)8th (A7, 3520Hz)9th10th00.30.61.1

Frequency Spectrum (Power Spectral Density)

Simulated PSD across frequency range for piano A4

100Hz200Hz300Hz440Hz500Hz600Hz700Hz800Hz880Hz1000Hz1200Hz1320Hz1500Hz1760Hz2000Hz2200Hz2640Hz3000Hz3520Hz4000Hz0306090120

Piano vs. Violin Harmonic Comparison (A4)

P1P2P3P4P5P6P7P8P9P1000.30.61.1
  • Piano
  • Violin

Violin has proportionally stronger upper partials, contributing to its brighter timbre. Piano's decay means high partials fade faster.