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Method for measuring speech intelligibility in global system for mobile communication radio system in motor vehicle, involves deriving rapid speech transmission index value from speech transmission index value
Method for measuring speech intelligibility in global system for mobile communication radio system in motor vehicle, involves deriving rapid speech transmission index value from speech transmission index value
The method involves supplying a noise signal into a network analyzer by a Global system for Mobile Communicationmodule. Different received quality of speech values are activated and evaluated at the network analyzer by regulating field strength. An analog signal is recorded and is output by a loudspeaker. A speech transmission index value for speech intelligibility is directly measured, and a rapid speech transmission index value is derived from the speech transmission index value, where the speech intelligibility is evaluated only at a speech band.
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