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The ANIR Corpus - Loudspeakers

   
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The loudspeakers in this corpus can be divided into three groups with respect to usage and integration in the vehicles. Loudspeakers built into the vehicle by the manufacturer are referred to as standard car loudspeakers. The other types of loudspeakers are the ones added in a system retrofit and the mouth loudspeakers of head and torso simulators (HATS), which meet the criteria defined in ITU-T Rec. P.58.

To give a rough location of a loudspeaker, the zone convention from ITU-T Rec. P.1150 is used. According to this convention, each seat in the vehicle is assigned a zone number, starting with the driver's seat as zone one. Zone numbers are incremented by moving through a row from left to right before moving from the front of the vehicle to its back. A graphical overview of the zones in a vehicle is inlcuded in the vehicle-specific information below.

 

Vehicle-specific Information

The following will give a desription of the loudspeakers in each vehicle. For graphical overviews of the loudspeaker locations in the vehicles, please refer to the bottom of the page

To ensure that the measurements made are as reproducible as possible, there are standards that define the measurement setup and the implementation of the measurements. In this case it is recommendation P.1150 of the International Telecommunication Union (ITU). According to ITU-T P.1150, a vehicle can be divided into different zones. The numbering of the zones begins on the driver's seat. All other seats are numbered from front to back and, depending on the driver's seat position, from left to right or from right to left. The example of the ITU recommendation contains a total of eight seats - but more seats are theoretically conceivable.