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spectrogram
This term is primarily used in technical, scientific, and engineering contexts, specifically within acoustics, signal processing, and linguistics. It describes a three-dimensional data plot where time is on one axis, frequency is on another, and the intensity or amplitude is represented by color or shading. It is a precise tool for analyzing non-stationary signals where the frequency content changes over time.
In a practical sense, it differs from a simple spectrum (which shows frequencies at a single moment) by providing a temporal map. Users of this term are typically researchers, audio engineers, or biologists studying bioacoustics, such as analyzing the complex patterns of animal vocalizations or speech patterns in phonetics.
Ý nghĩa
Ví dụ
The researcher analyzed the spectrogram to identify the bird species.
Look at this spectrogram and tell me where the noise begins.
A spectrogram allows us to see the frequency components of a sound over time.
I wonder if the spectrogram will show any hidden patterns in the signal.
The audio engineer adjusted the filter after reviewing the spectrogram.
The forensic expert used a spectrogram to verify the voice recording.
This spectrogram clearly shows the harmonic structure of the vowel.
The software generates a real time spectrogram of the incoming audio stream.