NTi Audio TalkBox - Manual (Page 5)

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2. Overview
NTi Audio TalkBox greatly simplifies the acoustical feed of the STIPA intelligibility
test source signal into closed sound reinforcement systems. It presents the stan-
dardized voice-like acoustical signal emission simulating a human talker according
to IEC 60268-16, combined with a TNO certified speech intelligibility signal at stan-
dardized levels.
NTi Audio TalkBox