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sound spectrograph

noun
  1. an electronic device for recording a sound spectogram.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for sound spectrograph

sound spectrograph

noun
  1. 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