Interactive spectrogram created using React.

The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are …

3D Spectrogram Flute

SpectroDraw is a free, browser-based spectrogram editor that lets you draw, visualize, and sculpt sound directly on the frequency spectrum. Perfect for sound design, audio repair, and experimentation.

Free Online Spectrogram Generator & Decoder Drop any audio file to instantly generate a spectrogram — a visual frequency-over-time map of your sound. Decode hidden patterns, convert images to …

Spectrogram of the spoken words "nineteenth century". Frequencies are shown increasing up the vertical axis, and time on the horizontal axis. The legend to the right shows that the color intensity …

Visualize the frequency spectrum of any audio file over time. Free browser-based spectrogram viewer with adjustable FFT, color palettes, and PNG export. Like Spek, but online.

Apr 10, 2026 · Online spectrogram for bioacoustics: bird songs, bat echolocation, whale calls. Measure, annotate, filter, export. Free, in browser.

Tool to perform spectral analysis of audio files (WAV, MP3, etc.) and display any hidden data in sound frequencies and their visualization.

Visualizes audio as a spectrogram to spot hidden patterns, tones, and messages embedded in sound.