|
OBSELETE Vigilant Speech Intelligibility Meter & Talkbox (STI-CIS)
Speech Intelligibility Meter & Talkbox
SKU
STI-CIS
The STI-CIS Analyser measures the speech
intelligibility of a fire alarm evacuation signal. To
measure overall speech intelligibility, the STI-CIS
Analyser uses the STI measurement method
to factor in the effects of the warning system,
room acoustics (reverberations and echoes) and
background noise.
The STI-CIS Analyser comes equipped with its
own microphone and LED display and has buttons
to activate dBA and CIS measurements. There is
provision for a PC interface (RS-232) for use with the
STI-CIS Noise Effect Correction Software Tool.
The TALKBox is used to send the STI-PA test tone
into the fire alarm warning system. It interfaces with
the system through its microphone input. A linelevel
output is also available for systems with direct
line inputs. The TALKBox comes equipped with
its own CD player and speaker. The CD player has
controls to Play, Rewind, and Fast Forward the CD
with STI-PA test tone (supplied). However, pressing
Play on the CD player is all that is required to play
the test tone once you insert the STI-PA Test Tone
CD into the CD player. Power is supplied to the
TALKBox through a DC power supply (connected
to the Ext. Power socket) or batteries. The TALKBox
operates a minimum of 18 hours on eight AA
alkaline batteries