Sound Frequency Analyzer

Real-time FFT spectrum, waveform, and frequency detection

Audio Source
Analyze live microphone input or an uploaded audio file.
StatusIdle
2048
Microphone
Audio File
Frequency Detection
Dominant frequency updates live; peak frequency holds the loudest component seen this session.
Dominant Frequency
—
Peak Frequency (session)
—
Input Level (RMS)0%
Waveform
Time-domain signal
FFT Spectrum
Magnitude vs. frequency (log scale)
Frequency Heatmap
Scrolling spectrogram — time (x), frequency (y), intensity (color)
20 Hz
20 kHz