The Interactive NVH Simulator as a Practical Engineering Tool

Allman-Ward, Mark; Venor, Joe; Williams, Roger; Cockrill, Martin; Distler, Hartwig; Crewe, Alun; Heinz, T.

doi:10.4271/2003-01-1505

Cited by 23 publications

(4 citation statements)

References 2 publications

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“…To address many of these limitations, interactive simulation, in which the sound of a vehicle is accurately created in a driver-in-the-loop interactive environment [40], is now commonly used. The data and data preparation requirements of interactive simulation have been described in detail in previous papers [41,42]; only a brief overview is presented here. The key feature is that the NVH simulation is built upon a model of the car which includes the contributions of all the components and sources to the sound experienced in the car at any point during its operation (Fig.…”

Section: Interactive Simulation 41 Descriptionmentioning

confidence: 99%

Tools and techniques for understanding the fundamentals of automotive sound quality

Jennings

Dunne

Williams³

et al. 2010

Proceedings of the Institution of Mechanical Engineers, Part D:

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Understanding the sounds that create the most positive subjective and emotional responses for customers and, importantly, linking this knowledge to objective engineering specifications is a major challenge. This paper presents research to create the tools and techniques to achieve this. It starts with work carried out to understand the language of sound perception and a means to capture it succinctly. Two perceptual dimensions were established that enabled the positioning of current, competitor, and target vehicles in a subjective space to be determined. Early work involved the study of fixed sounds, both real and simulated, in a listening room. However, this approach has been improved by enhancing the level of context and interactivity. Perception of the sounds of on-road cars is affected by stimuli for other senses (e.g. visual and vibrational), and the fact that an assessor is also concentrating on driving. Furthermore, drivers experience a full range of vehicle sounds, rather than fixed stimuli. The development and use of interactive simulation tools are therefore introduced. They provide a more confident assessment of preferences but also allow a greater understanding of the contributing factors to these preferences, e.g. those aspects of real-world driving that are most important in forming overall impressions of vehicle sound.

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Section: Interactive Simulation 41 Descriptionmentioning

confidence: 99%

Tools and techniques for understanding the fundamentals of automotive sound quality

Jennings

Dunne

Williams³

et al. 2010

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…Recent developments allow 3D display without any magnifi cation in a so-called 'virtual reality cave' to evaluate the real visible impression of driving a vehicle. In addition, simulating seat and steering wheel vibrations in such a cave creates a real invehicle 'look and feel' impression [12].…”

Section: Confi Dence In Noise and Vibration Refi Nement Simulationsmentioning

confidence: 99%

Advanced simulation techniques in vehicle noise and vibration refinement

Hampl¹

2010

Vehicle Noise and Vibration Refinement

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“…Binaural sound is heard via headphones and vibration is felt through the steering wheel, the floor and the seat. The sound and vibration stimuli are accurate and furthermore existing and concept vehicles can be heard in real-time in response to the assessors' driving behaviour [1].…”

Section: Figure 1: Listening Roommentioning

confidence: 99%

Optimising the value of sound quality evaluations by observing assessors' driving strategies

Giudice

Jennings

Cain

et al. 2008

The Journal of the Acoustical Society of America

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Traditionally vehicle sound evaluations have been conducted either whilst driving a car or by auditioning fixed test conditions in a listening room. On-road testing provides the right context but the results are often inconsistent and unrepeatable. Furthermore it is not possible to evaluate prototype sounds or carry out back-to-back comparisons. In-room evaluations improve the statistical confidence, but the context of the assessments is unrepresentative. Interactive NVH vehicle simulators enable assessments to be performed in a setting representative of real appraisals. Accurate sounds can now be generated in real-time, and assessors can adopt a driving strategy that allows their own interpretation of the attributes. The benefits include the opportunity to understand how preferences are formed by assessors, albeit with added complexities. Different assessors may be associating their preferences on different operating conditions which have different acoustical properties. Therefore for engineers to identify the key features that influence perception they need to be able to relate the driving strategies with the subjective preferences. This paper reports on new observational methods which capture assessors' decision making strategies. It demonstrates how these help in relating subjective preferences to vehicle operating conditions and how to design a structured evaluation to reduce sources of experimental error.

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The Interactive NVH Simulator as a Practical Engineering Tool

Cited by 23 publications

References 2 publications

Tools and techniques for understanding the fundamentals of automotive sound quality

Tools and techniques for understanding the fundamentals of automotive sound quality

Advanced simulation techniques in vehicle noise and vibration refinement

Optimising the value of sound quality evaluations by observing assessors' driving strategies

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