Spectral Analysis Tool

Overview

The Spectral Analysis Tool analyzes signal spectra using windowing, power spectral density, and spectrograms. Upload audio or generate signals, then view frequency content over time. Includes different window functions (Hamming, Hann, Blackman) and spectral estimation methods.

Open in new tab

Tips

• Spectrogram shows frequency content changing over time
• Window functions reduce spectral leakage
• Hamming, Hann, Blackman windows have different trade-offs
• Power spectral density (PSD) shows power distribution across frequencies
• Short-time Fourier transform (STFT) for time-varying signals
• Applications: speech analysis, music analysis, vibration monitoring
• Wider windows = better frequency resolution, worse time resolution