What is the room equivalent absorption area?
Definition The room equivalent absorption area, , is used to characterize the acoustic absorption capacity of a room. The acoustic absorption of a given room is linked to its wall […]
Definition The room equivalent absorption area, , is used to characterize the acoustic absorption capacity of a room. The acoustic absorption of a given room is linked to its wall […]
Context There are differences between sound parameters we measure physically and the sound perception we have as humans. For instance, we are used to describe the loudness of a sound […]
Definition Sound perception is a subjective phenomenon depending on both physical and cognitive factors. The aim of psychoacoustics is to better understand the human perception of sound and improve Sound […]
Definitions A tone is a sound composed of a single frequency component. Sounds we hear can be either pure tones (e.g. a whistle in a quiet background), or a combination […]
Context Hearing is a cognitive phenomenon : auditive perception can be improved with experience, but it can also diminish with age, hearing fatigue or traumatism. Perception varies from a person […]
Definition Some sounds may no longer be perceived when combined with an additional sound: this effect is called masking. There are two forms of masking : spectral and temporal. Spectral […]
EOMYS presented at ISEF 2019 held in Nancy (FR) on 30th August 2019 a presentation on numerical challenges of vibroacoustic simulation of electrical machines, including application with MANATEE software (V1). […]
Summary of e-NVH sound sample Application Tesla® X90D (EV HEV NVH) Electrical machine SCIM Supply condition Run-up at max torque Noise sources Electromagnetic, mechanical, aerodynamic See also Nissan Leaf, Renault […]
Definition In acoustics, Sound Power Level (SWL) characterizes the intrisic acoustic power of an acoustic noise source, whereas Sound Pressure Level (SPL) characterizes the acoustic noise level observed at a […]