Topic: Spectrogram, Cepstrum and Mel-Frequency Analysis

← Back to document page

Speech Technology - Kishore Prahallad Technology: A Practical IntroductionTopic: Spectrogram, Cepstrum and Mel-Frequency AnalysisKishore PrahalladEmail: Mellon University&International Institute of Information Technology HyderabadSpeech Technology - Kishore Prahallad Spectrogram Cepstrum Mel-Frequency Analysis Mel-Frequency Cepstral CoefficientsSpeech Technology - Kishore Prahallad Technology - Kishore Prahallad signal represented as a sequence of spectral vectorsFFTFFTFFTSpectrumSpeech Technology - Kishore Prahallad signal represented as a sequence of spectral vectorsFFTSpectrumFFTFFTFFTFFTFFTFFTFFTF FTFFTFFTFFTFFTFFTSpeech Technology - Kishore Prahallad signal represented as a sequence of spectral Technology - Kishore

• Phones and their properties are visually studied by phoneticians • Hidden Markov Models implicitly model spectrograms for speech to text systems • Useful for evaluation of text to speech systems – A high quality text to speech system should produce syn thesized speech whose spectrograms should nearly match with the natural sentences.

  Analysis, Spectrum, Frequency, Visually, Spectrograms, Cepstrum and mel frequency analysis