Topic: Spectrogram, Cepstrum and Mel-Frequency Analysis
Speech Technology - Kishore Prahallad (skishore@cs.cmu.edu) 15 Usefulness of Spectrogram • Time-Frequency representation of the speech signal • Spectrogram is a tool to study speech sounds (phones) • Phones and their properties are visually studied by phoneticians • Hidden Markov Models implicitly model spectrograms for speech to text ...
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