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From Sound Quality to the Engineering of Solutions for NVH Problems: Case Studies

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The subjective quality of sounds is a topic of increasing importance in the automotive industry. The first consideration when dealing with a specific noise quality problem, is to describe the perceptual characteristics of this quality by means of jury tests or appropriate metrics.

Once the problem is determined in terms of an appropriate Sound Quality description, an in-depth analysis of the underlying physical phenomena must be made and engineering solutions need to be proposed and validated.

This involves the detailed analysis of the signal structure in the time, frequency and order domain and identifying the signal components critical to the relevant sound quality dimension, the correlation of the critical signal components to specific sources, noise or vibration transmission paths and vibro-acoustic system characteristics and ultimately the prediction of the effect of feasible modifications.

The above procedure is reviewed for two typical automotive sound quality cases, being a road noise problem (broad-band signal) and the sound of a door-slam (transient signal).
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Document Type: Research Article

Publication date: September 1, 1997

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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