Audio Waveform Viewer - Free Online | ToolXHub

After uploading the audio file, the tool draws a complete waveform diagram (time domain) and spectrum diagram (frequency domain). The waveform diagram shows the change in amplitude over time, and local details can be viewed by zooming. The spectrum shows the distribution of frequency components over time and expresses the energy intensity in hues.

Waveform drawing decodes the audio data through the Web Audio API to obtain the amplitude value of each sampling point. Spectral analysis uses a fast Fourier transform (FT) to convert a time-domain signal into a frequency-domain representation. Supports stereo separation to display left and right channels.

Suitable for audio engineers to analyze recording quality, detect clipping distortion, and view frequency distribution. It is also used for music production, post-podcasting and sound research. You can export the waveform chart to PNG, or export the peak data to CSV.

Audio waveform viewer, which visually displays the time-domain waveform and frequency-domain spectrum of audio, supports zoom, pan and peak annotation for audio analysis.