Method and device for simultaneously recording and presenting ra

Details Method and device for simultaneously recording and presenting ra Method and device for simultaneously recording and presenting ra

1997-10-10

1999-11-09

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

455423, 455 671, G10L 300, H04B 122

Patent

active

059831855

ABSTRACT:
A system and method in a radio telecommunications network for correlating speech quality over an air interface link with a plurality of radio quality parameters. The system includes a mobile switching center (MSC) for recording uplink radio quality information from the air interface link, a mobile test tool for recording downlink radio quality information from the air interface link, a parser for parsing the radio quality information into the plurality of radio quality parameters, and a memory for storing the parsed radio quality information. A digital audio tape (DAT) recorder or personal computer (PC) is electronically connected to a mobile station for recording a speech conversation from the air interface link simultaneously with the recording of the radio quality information. A DAT-link interface is utilized to interface the DAT recorder with a playback unit and with a synchronizer/controller which synchronizes the stored radio quality information and the stored speech conversation. The radio quality parameters are presented to the operator in graphical form on a visual display while the speech conversation is simultaneously presented to the operator in audio form. The operator enters a subjective evaluation of the speech quality of the speech conversation, and the evaluation is correlated with the radio quality parameters and displayed on the visual display.

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Toshiaki Komizu, Ituo Hotta, Tutomu Ohnisi, Akio Maeda and Takeo Kontani; Development and Field Test Results of a Digital Cellular System in Japan; Proceedings of the Vehicular Technology Conference; 6-8-94; pp. 302-305.

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