sound spectrograph

American

noun

an electronic device for recording a sound spectogram.

sound spectrograph British

noun

an electronic instrument that produces a record ( sound spectrogram ) of the way in which the frequencies and intensities of the components of a sound, such as a spoken word, vary with time

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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sound spectrograph

By means of a sound spectrograph, Kersta converts spoken words into picture patterns that he says identify the speaker as reliably as his fingerprints.

From Time Magazine Archive

The most striking evidence came from a sound spectrograph, a machine that reduces speech to electronic "pictures" called spectrograms or voiceprints.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023