Accessories – NTi Audio Acoustilyzer AL1 User Manual
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7. Accessories
MiniSPL
The MiniSPL is the perfect accessory for
acoustic measurements. Together with
the Acoustilyzer AL1 a comprehensive
integrating sound level meter is formed.
The MiniSPL is a self-contained omni
directional 1/2" measuring microphone with
built in impedance converter, pre-amplifier
and power supply. It is battery powered
with balanced XLR-output. The MiniSPL
is classified as class 2 in accordance with
IEC 61672 and is factory adjusted to a
sensitivity of 20 mV/Pa.
STI-PA Measurement Option
The STI-PA analyzer option allows the
reliable measurement of the speech
transmission index according to the latest
IEC standards within 15 sec. Besides the
single value STI or CIS test result, a detailed
view of the modulation indices and individual
band level results is provided.
NTi Audio TalkBox
The TalkBox is the missing link for the
complete evaluation of speech intelligibility
in emergency life & safety announcement
systems, from the talker’s microphone to
the listener’s ear. The NTi Audio TalkBox
presents the standardized voice-like
acoustic signal emission simulating a
human talker according to IEC 60268-
16, combined with a TNO certified speech
intelligibility signal at standardized levels.