Texas Instruments Corporation

Wallace Anderson

Vishu R Viswanathan

George R Doddington

Michael L McMahan

Basavaraj I Pawate

Wai-Ming Lai

P K Rajasekaran

Rabin Deka

A Karaoke (10) apparatus with autokeying is provided by measuring the average pitch (28) of the singer or user over a predetermined time period, comparing (29) the pitch of the singer or user voice to that of a reference pitch to provide a signal representing mismatch and changing the pitch (31) of the background music to match that of the singer or user.

Autokeying for musical accompaniment playing apparatus

A low cost speech recognition system generates frames of received speech having binary feature components. The received speech frames are compared with reference templates, and error values representing the difference between the received speech and the reference templates are generated. At the end of an utterance, if one template resulted in a sufficiently small error value, the word represented by that template is selected as the recognized word.

Low cost speech recognition system and method

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Richardson, TX, United States of America

Wallace Anderson