Title :
Enhancement of esophageal speech by injection noise rejection
Author :
Javkin, Hector ; Galler, Michael ; Niedzielski, Nancy
Author_Institution :
Speech Technol. Lab., Panasonic Technol. Inc., Santa Barbara, CA, USA
Abstract :
Esophageal speakers, who produce a voice source by bringing about a vibration of the esophageal superior sphincter, must insufflate the esophagus with an air injection gesture before every utterance, thus creating an air reservoir to drive the vibration. The resulting noise is generally undesired by the speakers. This paper describes a method for the automatic recognition and rejection of the injection noise which occurs in esophageal speech
Keywords :
acoustic noise; acoustic signal detection; acoustic signal processing; interference suppression; prosthetics; speech enhancement; air injection gesture; air reservoir; automatic recognition; enhancement; esophageal speech; esophageal superior sphincter; esophagus; injection noise rejection; utterance; vibration; voice source; Acoustic noise; Cepstral analysis; Esophagus; Gain control; Mel frequency cepstral coefficient; Noise figure; Pulse width modulation; Signal analysis; Speech enhancement; Switches;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.596161
