
Introducing Audio Spectrogram: Visualize Sound Live in Your Browser
Visualize sound as a live frequency-vs-time spectrogram in your browser. See harmonics, speech formants, and noise. 100% local, secure, and free.
July 25, 20265 min read
2 articles

Visualize sound as a live frequency-vs-time spectrogram in your browser. See harmonics, speech formants, and noise. 100% local, secure, and free.

Generate sine, square, triangle, and sawtooth tones from 20Hz to 20kHz. Free browser-based frequency generator for hearing tests, tuning, and speaker calibration.