STIPA Speech Transmission Index

The STIPA measurement procedure in accordance to IEC 60268-16:2011 is supported by the mobile application, that provides a step by step measurement route. The application uses the Bluetooth® interface to connect to SVAN 979 where STIPA results are presented on the display and saved in the memory.


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STIPA measurement is widely used for assessment of suitability of the room acoustics for speech communication and evaluating PA (Public Address) and VA (Voice Alarms) systems. The goal of measurement is to measure how good persons understand a spoken message.
The STIPA technique is simple, the test signal with a predefined set of two modulations is played back from the PA or VA system speakers whilst the SVAN 979 sound level meter is performing the measurements.


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