The Federal Aviation Administration (FAA) is currently evaluating low rate voice digitizing coder/decoder (CODEC's) for use with the Aeronautical Mobile Satellite Service (AMSS). Phase 2 of this evaluation consisted of air traffic control (ATC) personnel participating in an objective intelligibility test of several CODEC's under operational conditions. The results of the testing show that the intelligibility of the low rate 4.8 kilobits per second (kbps) CODEC's is essentially equivalent to the intelligibility of the 9.6 kbps CODEC. The results also show that the 4.8 kbps CODEC's can operate with high intelligibility under conditions of high bit error rates and operational background noise.


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    Titel :

    Phase 2 Testing and Evaluation of Low Data Rate Voice CODEC Equipment


    Beteiligte:
    T. Dehel (Autor:in) / M. Grable (Autor:in) / J. Child (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    42 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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