What is an audio spectrum analyzer?

An audio spectrum analyzer is a free tool that visualizes sound frequencies in real-time. It breaks down audio into its component frequencies and displays them as a graph, showing which frequencies are present and their relative amplitudes. This helps you understand the frequency content of music, speech, or any audio signal.

Can I use this spectrum analyzer with my microphone?

Yes! This free audio analyzer works with your device's microphone. Simply click the 'Use Microphone' button and grant permission when prompted. You can then analyze any sound in real-time, including music, voice, or environmental sounds.

What audio file formats are supported?

This free tool supports all common audio formats including MP3, WAV, OGG, M4A, and more. Simply upload your audio file and the analyzer will process it immediately, displaying the frequency spectrum as the audio plays.

What do the different visualization modes show?

The free spectrum analyzer offers multiple visualization modes: Bars mode shows vertical frequency bars, Line mode displays a continuous frequency curve, Circular mode creates a radial visualization around a center point, and Waveform mode shows the audio's amplitude over time. Each mode provides a unique way to visualize your audio.

What is FFT size and how does it affect the analysis?

FFT (Fast Fourier Transform) size determines the frequency resolution of the analysis. Higher FFT sizes (like 2048 or 4096) provide more detailed frequency information but update slightly slower. Lower FFT sizes (like 512 or 1024) update faster but with less detail. This free tool lets you adjust FFT size to match your needs.

Audio Spectrum Analyzer - Free Music Visualizer & Frequency Analyzer Tool

About This Tool

Visualize and analyze audio frequencies in real-time with this powerful spectrum analyzer. Perfect for musicians, audio engineers, and anyone interested in understanding sound.

Multiple Visualization Modes: Choose from bars, line, circular, and waveform displays
Peak Detection: Automatically identifies dominant frequencies
Customizable: Adjust colors, FFT size, smoothing, and more
Flexible Input: Use your microphone or upload audio files
Full Screen Mode: Immersive visualization experience

🎵 Audio Spectrum Analyzer

About This Tool

Audio Source

Visualization Mode

FFT Size

Smoothing

Primary Color

Secondary Color

Peak Frequency

Average Level

Peak Level