A speech recognition system suitable for use in cars has been developed by the Volkswagen Research Department, Wolfsburg, Germany. The aim was to show that such a device can satisfy the following conditions: remain functional over the entire vehicle operating range with bad signal-to-noise ratios; and reduce costs in comparison with conventional systems. Systems of this type can be employed to good effect to help the handicapped. Basically, it enables the driver to concentrate more on actual driving as driver/vehicle communication is effected audibly rather than visually. This applies in particular to the operation of future information systems requiring considerable amounts of input data. For demonstration purposes only, the system was used to control the trip computer available as standard in the Golf GTI. The vocabulary is made up of the following commands: Zeit (time); Strecke (trip mileage); Dauer (elapsed time); Tempo (average velocity); Durchschnittsverbrauch (average consumption); Oeltemperatur (oil temperature); Aussentemperatur (temperature of air); Loeschen (reset of the trip computer); Eins (one); and Zwo (two). After the command has been given, the required information is displayed on a multifunctional indicator. The most important problems foreseen in incorporating a speech recognition system into vehicles are: 1) low cost; 2) driving noise and positioning of the microphone; and 3) rejection of other acoustic signals. 1) The cost of the system should be comparable to that of a trip computer, i.e., it should be possible to construct the system using a few standard components. 2) The microphone should not hinder the driver in any way. It was, therefore, positioned beneath the headlining at a distance of approximately 40 cm from the driver's mouth. The driving-noise stems from engine, tyres and wind, with the last two variables causing considerable speech-band interference. However, the distance of the microphon from the driver's mouth results in a relatively low signal-to-noise ratio of 6 dB.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A new speech input system for use in cars


    Weitere Titelangaben:

    Ein neues Spracheingabesystem fuer die Verwendung in Kraftfahrzeugen


    Beteiligte:
    Andreas, P. (Autor:in) / Junge, M. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1985


    Format / Umfang :

    4 Seiten, 5 Bilder, 4 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    An adaptive microphone array for speech input in cars

    Grenier,Y. / Xu,M. / Telecom Paris,FR | Kraftfahrwesen | 1990


    Measurement of the speech intelligibility inside cars

    Farina, A. / Bozzoli, F. | Tema Archiv | 2002



    Design and evaluation of speech information systems in cars

    Faerber, B.C. / Faerber, B.A. | Tema Archiv | 1985


    Design and evaluation of speech information systems in cars

    Faerber,B.C. / Faerber,B.A. / Univ.Tuebingen,Psychologisches Inst. | Kraftfahrwesen | 1985