Intelligibility Measurement Kit

This kit contains all you need for speech intelligibility measurements using the STIPA method according to most national and international standards, including the following:

  • IEC-60268-16
  • ISO-7240-19
  • NFPA72 Annex D
  • NEN2575
  • DIN-60849/DIN-VDE-0833-4
  • BS-5839-8

The kit consists of a Bedrock SM50 analyzer and a Bedrock BTB65 Talkbox, combined in a rugged waterproof carrying case.

The functionality extends far beyond just STIPA measurements, and covers all of the most commonly required acoustic test methods:

  • STIPA measuring (quick screening mode, pro mode)
  • Full STI using the direct method (65 second measurement). With firmware 2.0 
  • Speech Level Measurements cf IEC-60268 Annex J. With firmware 2.0 
  • Class 2 / Type 2 sound level meter (fast, slow, A/C.Z-weighting, Leq) conforming to IEC-61672 class 1, ANSI S1.4 Type 1.
  • Real Time Analyzer (1/3 and 1/1 octave)
  • FFT analyzer (detailed frequency analysis up to 32768 lines)
  • RT60 measuring (reverberation times: T20/T30/EDT).
  • Noise Curves (NR, NC, PNC, NCB, RC, RC mark II) With firmware 2.0 
  • Calibrated audio recording
  • LAeq long-term logging and monitoring
  • Audio oscilloscope 
  • AC Volt meter for audio line level measurements (dBU, dBV, V rms) With firmware 2.0 
  • USB audio device mode – calibrated audio for your PC-based software applications 
  • More functionality will be added through free future firmware upgrades.

View Bedrock SM50 Product Sheet

View Bedrock BTB65 Talkbox Product Sheet

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