Accession Number:

AD0626659

Title:

TEMPORAL EFFECTS IN SPEECH ANALYSIS AND SYNTHESIS,

Descriptive Note:

Corporate Author:

COMMUNICATION SCIENCES LAB UNIV OF MICHIGAN ANN ARBOR

Personal Author(s):

• Scott,Robert James

Report Date:

1965-12-01

Pagination or Media Count:

81.0

Abstract:

Two major methods of adjusting the time dimention of speech were investigated. One was linear time normalization and the other was arc-length time normalization. In the experiments conducted the distribution of spectral energy was derived by scanning the output of a bank of vocoder analyzer filters. A hybrid computing facility was employed to accomplish the various methods of speech time adjustment. The perceptual effects of time-adjusted synthesized utterances were investigated in an intelligibility test. A dichotic method of time-compression of speech was studied in which information from alternate time samples was supplied to alternate ears. A comparison of the linear and non-linear methods of time normalization suggests that the arc-length method may be superior for use in automatic speech recognition. A number of potential applications of time adjusted speech and possibilities for future research are suggested. Author

Descriptors:

• *SPEECH
• *SPEECH
• INTELLIGIBILITY
• VOICE COMMUNICATIONS
• SYNTHESIS
• BANDPASS FILTERS
• AUDITORY PERCEPTION
• AUTOMATIC
• PHONETICS
• TIME
• EAR
• DIGITAL SYSTEMS
• LINEARITY
• TABLES(DATA)

Subject Categories:

• Linguistics
• Computer Programming and Software
• Computer Hardware
• Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE