Accession Number : ADD012734

Title :   Front-End Processor for Narrowband Transmission.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kang,George S ; Everett,Stephanie S ; Thornhill,Alexander F

Report Date : 16 Dec 1986

Pagination or Media Count : 11

Abstract : Bandwidth compression of speech signals is done by aliasing the fricative-sound signals (4-8 KHz) into the voiced-sound signal band for transmission (0-4 KHz). To minimize distortion, aliasing (foldover) is done only when the fricative band power is more than twice the voice band power. (Patents)

Descriptors :   *PATENTS, *COMPRESSION, *FRONT END PROCESSORS, *DISTORTION, *SPEECH, BANDWIDTH, NARROWBAND, TRANSMITTANCE, SIGNALS

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE