Wavelet-based Modification of Impulsive Sound Character and Application to Diesel Sound Quality 2005-01-2271
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.
Citation: Scholl, D. and Blommer, M., "Wavelet-based Modification of Impulsive Sound Character and Application to Diesel Sound Quality," SAE Technical Paper 2005-01-2271, 2005, https://doi.org/10.4271/2005-01-2271. Download Citation
Author(s):
David Scholl, Mike Blommer
Affiliated:
Ford Motor Company
Pages: 7
Event:
SAE 2005 Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2005 Transactions Journal of Passenger Cars: Mechanical Systems-V114-6
Related Topics:
Sound quality
Statistical analysis
Simulation and modeling
Noise
Powertrains
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