A wavelet-based technique for reducing the impulsive character of sound recordings is presented. The amount of impulsive content removed may be adjusted by varying a statistical threshold. The technique is validated for a diesel idle sound-quality application. The wavelet-based modification produces a substantial decrease in impulsive character as verified by an objective sound-quality metric for engine “ticking”. Informal subjective assessment of the modified results found them to be realistic and free from artifacts. The procedure is expected to be useful for sound-quality simulation and target-setting for diesel powertrain noise and other automotive sounds containing both impulsive and non-impulsive content.


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    Titel :

    Wavelet-based Modification of Impulsive Sound Character and Application to Diesel Sound Quality


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Scholl, David (Autor:in) / Blommer, Mike (Autor:in)

    Kongress:

    SAE 2005 Noise and Vibration Conference and Exhibition ; 2005



    Erscheinungsdatum :

    16.05.2005




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Wavelet-based Modification of Impulsive Sound character and Application to Diesel Sound Quality

    Scholl, D. / Blommer, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2005





    Wavelet-Based Visualization, Separation, and Synthesis Tools for Sound Quality of Impulsive Noises

    Scholl, D. / Yang, B. / Society of Automotive Engineers | British Library Conference Proceedings | 2003