Audio Frequency Analyzer

Choose a time position and FFT size to inspect a local magnitude spectrum and dominant frequency without uploading the file.

Choose audio file

Analyze at time (seconds)

FFT size

Max display frequency

—Dominant frequency

—FFT bin spacing

—Sample rate

—Nyquist frequency

Choose an audio fileUses a Hann-windowed FFT of channel 1 around the selected time. It is a spectral inspection tool, not a calibrated acoustic analyzer.

How to use this Audio Frequency Analyzer

Analyze the dominant frequencies in a short section of an audio file. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.