Accession Number : AD0466022


Title :   FORMANT ANALYSIS,


Corporate Author : MICHIGAN UNIV ANN ARBOR COMMUNICATION SCIENCES LAB


Personal Author(s) : Hanne, John R


Report Date : Mar 1965


Pagination or Media Count : 193


Abstract : The investigation begins with a summary of some of the models which have been used to study speech. Closed representations of the output of a simple resonator which are synchronous with the fundamental frequency are examined as a basis of formant analysis. The representations are then discussed with respect to measured speech data. The representations are also used to specify the inherent accuracy limitations of two different formant tracking schemes. Finally, a feasibility study was made of a method of formant tracking which employs a fixed filter bank as an input to an automatic, zero crossing detector which is synchronous with the fundamental frequency. It was concluded that such a device could be built with an accuracy close to the three percent which has been reported for the human difference limen for formant frequency discrimination. (Author)


Descriptors :   *SPEECH , SYNTHESIS , ACOUSTICS , SPECTROSCOPY , SPEECH RECOGNITION , ANALOG SYSTEMS , RESONATORS , MULTIPLEXING , COMPUTER PROGRAMMING


Distribution Statement : APPROVED FOR PUBLIC RELEASE