Idle noises diesel engines

Therefore, rapid sensory methods are used to substitute for conventional profiling. They are used as a first step to select a subset of products to study. In terms of sensory description, we use than to develop a first base sensory lexicon, as described in the example on idle noise in diesel engines. They are also used to compare experts and consumers perceptions. Indeed, the experts point of view is sometimes so accurate that it can be too precise, and way above the perceptions of the consumers. Rapid sensory methods are then used to calibrate the experts according to the sensations of consumers in terms of intensities and vocabulary this aspect will be illustrated by the example on Gearboxes sensations and comfort. ... 

Eleven idle noises of diesel engines were evaluated anonymously. They are coded in this paper by their short names (Table 20.3). These cars were chosen to represent different types of engine (3-, 4-, 6- and 8-cyIinder). 

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