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Colour enhanced spectrograms of male and female speech patterns with the word speech . At top are female voice types and accents: (from top to bottom) clear high pitched voice, throaty voice, Scotch-Irish accent. At the bottom are male voice types and accents: (from top to bottom) low pitched resonant voice, mid western accent, British accent. Spectrograms, Also called a speech sonogram, are used in many fields including music, sonar/radar, speech processing, seismology, and others. It is also used to identify phonetic sounds, to analyse the cries of animals.
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