Spectrogram Generator

Convert WAV audio to a downloadable PNG Standalone HTML

Audio File

Drop WAV file here

or click to browse

Frequency Analysis

FFT window size frequency detail

Hop length time detail

Maximum frequency (Hz) 0 = Nyquist

Normalize audio before analysis

Image Appearance

Colormap

Minimum dB

Maximum dB

Output mode

Raw Labeled

Chart title labeled mode

Raw output is directly suitable for the standalone SpectoAudio reconstruction tool. Use the same colormap, dB range, frequency limit, and duration when reconstructing.

Download PNG

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