Accession Number : AD0888850

Title :   Speech Controlled Radio Channel Selector.

Descriptive Note : Final rept. 9 Mar 70-30 Jun 71,

Corporate Author : RCA ADVANCED TECHNOLOGY LABS CAMDEN NJ

Personal Author(s) : Scott, Phillips B. ; Richards, Jerry R.

Report Date : OCT 1971

Pagination or Media Count : 78

Abstract : The report describes the design and development of a breadboard model of a radio channel selector activated by spoken call signs. The breadboard model was designed to be capable of operating with speech input in a typical aircraft environment. It is capable of recognizing with high accuracy a set of six words as spoken by six talkers. The speech used to test the performance of the equipment was recorded in a simulated aircraft environment with a noise level of 107 dB to approximate the noise conditions in the cockpit of an F4B aircraft in a holding configuration. The equipment is capable of direct interfacing with an aircraft radio type AN/ARC-144. The frequency of the radio, as well as the transmit/receive function, is controlled by voice command. With the aid of an airborne version of such a speech controller, it would be possible for a pilot to automatically tune the radio to a desired frequency by speaking the appropriate call sign into his microphone. The speech controlled radio channel selector responded with an accuracy of 91 percent to three repetitions of each of six call signs as spoken by five talkers in the noise background. Recognition circuitry was designed to recognize six selected call signs with the capability of expansion to twelve call signs designed into the equipment. (Author)

Descriptors :   (*CHANNEL SELECTORS, AUTOMATION), (*SPEECH RECOGNITION, CHANNEL SELECTORS), TUNING DEVICES, LOGIC CIRCUITS, JET FIGHTERS, RADIO EQUIPMENT.

Subject Categories : Electrical and Electronic Equipment
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE