Automatic Speech Recognition
■ The speed of a sound wave depends on the temperature and weight of the gas molecules. Given the temperature and weight of the molecules, a changes in air density or in pressure do not affect the speed of sound waves.
■ Sound waves satisfy the superposition principle, i.e. the superposition of several sound waves is a sound wave. This principle implies that two sound waves coming from opposite directions can travel through each other without loss.
KeywordsSpeech Recognition Discrete Fourier Transform Vocal Tract Output Probability Critical Band
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- 1.We use here the ARPAbet in contrast to the SAMPA alphabet which we use below for German speech recognition.Google Scholar