Spectrogram

Spectrogram: Analyze Acoustic Properties

A visual representation of frequency spectrum as it varies with time, used to analyze acoustic features of audio.

What is Spectrogram?

A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. It is a useful tool for analyzing acoustic signals such as audio recordings.

In a spectrogram, the x-axis represents time, the y-axis represents frequency, and the color or intensity represents the amplitude or power of each frequency at that point in time. This creates a two-dimensional image with color mapping that shows how the spectral content changes over time.

Spectrograms allow us to visualize patterns, harmonics, transitions and other acoustic qualities that are not as discernible by simply listening to the audio. They are used extensively in fields like audio engineering, acoustics, phonetics, speech analysis and more to study the frequency and pitch content of sounds.

There are various types of spectrograms possible depending on the parameters used such as window sizes and overlap. Digital audio editors and analysis software like Audacity provide tools to easily generate and study spectrograms. They require signal processing analysis to convert from the time domain waveform into the visual frequency domain.

Spectrogram Features

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