Signal Analysis and Representation — LT World

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Signal Analysis and Representation

In acoustic phonetics, the speech signal is represented as a waveform (amplitude curve over time). Through subsequent frequency analysis (e.g., using an FFT), a spectrogram (frequency distribution over time) is generated. For automatic speech processing (e.g., recognition, synthesis), further derived and discretised representations are required, e.g. mel-cepstrum coefficients (see also DSP Techniques).

Signal Analysis; Signal Representation;