Audio Entropy Analysis V10

Audio source

Select WAV file…

No audio loaded. Choose a WAV file to begin.

Playback position 0.00 s

Audio playback is the master clock. The cursor is positioned from the Web Audio playback time, not a separate timer.

Entropy processing

FFT window 2048

Time-domain bins 64

Trace stride 1 sample

Each result uses a window ending at its timestamp; only complete windows are used. Analysis is processed in small batches to keep the browser responsive.

XY cursor controls

X gain 1.00

X offset 0.00

Y gain 1.00

Y offset 0.00

3D entropy history · XY reticule / Z time

X = amplitude-histogram entropy (bits) · Y = FFT spectral entropy (bits) · Z = time (seconds). Gain/offset adjust the displayed X/Y coordinates.

3D orientation & time

Pitch 25°

Roll 0°

Yaw -30°

Z zoom 1×

Z scroll 0%

Smooth false-color contour rug · time → / amplitude values ↑

Horizontal axis = audio time; vertical axis = audio sample amplitude, automatically scaled to the recording minimum and maximum. A smooth 2D false-color surface built from the 64-bin time-domain amplitude histograms (no FFT bins). Hue follows the entropy vector, scaled from measured minimum to maximum; brightness follows locally smoothed histogram occupancy. Black indicates no activity. White line = playback position.

Current sample

FFT entropy—bits

Time entropy—bits

Trace time0.00seconds

Sample index0source samples

Diagnostics

State: Starting…

Startup: Checking scripts…

Error: None

Audio clock: —

Processed points: 0

Estimated cursor error: —

Precompute: Idle

Last draw: —

Audio context: not created

Session notes

The X coordinate is Shannon entropy of a quantized amplitude histogram. The Y coordinate is spectral power entropy—not entropy of raw floating-point samples. These are exploratory signal features, not direct measurements of biological hair-cell activity.

Choose a WAV file to load and analyze.ReadyVersion 17 · smooth false-color contour rug