Title :
Speech spectrograms using the fast Fourier transform
Author :
Oppenheim, Alan V.
Author_Institution :
Massachusetts Institute of Technology
Abstract :
An important aid in the analysis and display of speech is the sound spectrogram, which represents a time-frequency¿intensity display of the short-time spectrum.1-3 With many modern speech facilities centering around small or medium-size computers, it is often useful to generate spectrograms digitally, online. The fast Fourier transform algorithm provides a mechanism for implementing this efficiently.
Keywords :
Acoustic noise; Computer displays; Fast Fourier transforms; Frequency; Linear systems; Resonance; Spectrogram; Speech analysis; Speech synthesis; Steady-state;
Journal_Title :
Spectrum, IEEE
DOI :
10.1109/MSPEC.1970.5213512
