Spectrogram
The sound spectrogram is one of the most fundamental tools of digital speech processing. The sound spectrogram of a speech file is an image map of the sequence of short-time log (or linear) spectrums, where each spectrum is obtained from an STFT analysis of a frame of speech, and subsequent spectrums are obtained from STFT analyses of subsequent, highly overlapped in time, frames of speech. Thus the sound spectrogram is a two-dimensional (image) plot of speech spectral information (linear or log magnitude) over the duration of the speech signal.
引用
Speech Processing (2024). Spectrogram (https://www.mathworks.com/matlabcentral/fileexchange/45386-spectrogram), MATLAB Central File Exchange. に取得済み.
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- Signal Processing > Signal Processing Toolbox >
- Signal Processing > Audio Toolbox > Simulation, Tuning, and Visualization >
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バージョン | 公開済み | リリース ノート | |
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1.4.0.0 | Updated to work with post-R2014b graphics
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1.3.0.0 | code updates; Read_Me.txt setup file; pathnew_matlab_central example |
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1.2.0.0 | changed GUI start-up parameters |
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1.1.0.0 | recording fs set to 16000 Hz |
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1.0.0.0 |