Interactive spectrogram created using React.

Chrome Music Lab

Use the SpectroDraw web app to draw, visualize, and sculpt sound directly on the spectrogram. Free, browser-based sound design.

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 …

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.

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

Spectrogram Viewer – Online Audio Frequency Visualizer Analyze audio frequencies instantly with this free online spectrogram viewer. Visualize harmonics, overtones, transients, and noise patterns in …

Spectrogram Generator Online — Visualize Frequency Over Time Capture live microphone audio or generate demo signals, compute the STFT in real time, and view a scrolling color-mapped …