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Category:Serbian musical groups
Category:Serbian hip hop groups
Category:Serbian pop music groups1. Field of the Invention
The invention relates to a method of calculating a shock sound level in a microphone array and a corresponding system for sound level measurement.
2. Description of Related Art
Sound level calculation is widely used in order to obtain the sound power, for example, at a certain point in a room. Most of the sound level calculation methods employ a number of microphones. For example, the acoustic system described in the U.S. Pat. No. 5,122,799 B1 includes a microphone array of several microphones positioned at a distance from each other which is small compared with the wavelength of sound. A corresponding sound level is calculated from the amplitude of signals measured at the individual microphones.
It is known that a method of this type can be used in a vehicle for determining the sound power generated by an air conditioner. The sound power is a sound pressure which is caused by the source and which is superimposed on the vehicle noise. A noise level calculator is described in the German patent application DE 10 2007 051 087.6. In this application, the microphone array is mounted in a vehicle interior area so as to take into consideration that vehicle interior sound sources and components are present at the microphones in the vehicle interior. It is also known to provide an acoustic sensor in the vehicle interior area which allows a direct calculation of the sound power generated in the vehicle interior.
In vehicles, a very high sound pressure level can be present in the vehicle interior. This leads to interference with the passengers and thus is objectionable. In order to be able to adjust the sound power within a vehicle interior to a value at which it is no longer objectionable for the passengers, it is important to obtain a sound level measurement.
One possibility for adjusting the ac619d1d87
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