Handheld Solutions for AVI-Installations

• TalkBox offers a calibrated sound source for objective simulation of speaking persons into a microphone
• Improved and verified speech intelligibility STI-PA at each seat in the conference room
• All measurement results for are stored for documentation to SD Card

Screenshot Speech Intelligibility

• Sound pressure level SPL
  Setting up of sound levels for best performance.
   
• Real time analyzer RTA
  Fine tuning the system performance with pink noise. The reference spectra of speakers may be captured for comparative measurements, thus achieving the same sound performance of all speakers.
   
• 1/12 octave analysis
  Analysis of reflections and cancellations (comb filter effects) for improving the room architecture and speech intelligibility.
   
• RT60 reverberation time
  Verifies the room acoustics for optimized system performance and speech intelligibility.
   
• Polarity
  All speakers shall be verified for the same polarity, thus achieving a broad stereo sound image.
   
• Line level RMS and THD+N
  Verifies and troubleshoots the audio system performance.
   
• Speech intelligibility STI-PA
  Measures the speech intelligibility of conference systems using the TalkBox as signal source.

• Acoustic Sound Source
  The NTi Audio TalkBox generates the acoustic and line reference signals for system verification and speech intelligibility measurement.

• Signal Generator MR-PRO
  Provides line test signals for system verification and fine tuning.
   
• Cable Tester
  Verifies XLR audio cables for defects including pin 1 test.

Exel Acoustic Set

Description	NTi Audio #
Exel Acoustic Set Class 2 with M4260 Measurement Microphone	600 000 400
Exel Acoustic Set Class 1 frequency response with M2210 Measurement Microphone	600 000 410
NTi Audio TalkBox	600 000 085
Spectral Limits Option for XL2	600 000 376