The TalkBox is an acoustic signal generator for speech intelligibility measurements in evacuation and announcement systems, as well as for level alignment of teleconference or other audio systems. It allows you to perform a complete end-to-end evaluation of the speech intelligibility STI from the talker’s microphone to the listener’s ears.
The TalkBox simulates a human talker (60 dBA @ 1 meter according to IEC 60268-16) with the STIPA test signal and spoken messages. Further it provides a wide range of test signals like sine, pink noise, white noise and delay.
Applications
Speech intelligibility measurements
Level alignement of teleconference systems
System line up
Simulating human voice
Impulse response measurements
Advantages
Excellent ±1 dB flatness from 100 Hz to 10 kHz
Calibrated output level
Very low residual noise at high output levels
Balanced Line In/Out
FIR equalized speaker (level and phase)
The TalkBox features human head-like dimensions and is based on a solid-state-generator. It replays the STIPA test signal at the precisely equalized frequency response, also ensuring best performance through the internal amplifier and the precision loudspeaker. A variety of supplied or user-defined test signals may be used for different alignment applications.
The TalkBox has been designed to latest quality standards for reliable measurements results. It offers unmatched signal purity with a minimum distortion over the complete frequency range from 100 Hz to 10 kHz. This ensures the repeatable and precise verification of the speech intelligibility STI.