Sound Measurement Services offered by us

Sound Pressure Level Measurement
(Time Domain)

  • A-Weighted, C-Weighted, Flat Weighted
  • Measurement Range : 30 dBA ~ 130 dBA
  • IEC 61672 Class 2 Measurement microphone (Calibrated)
  • Leq Measurement (Time Averaged Sound Pressure Level)

Sound FFT Analysis (Frequency Domain)

  • Frequency Domain measurement of Sound Pressure Levels
  • 1:1 Octave Band Filter, 1:3 Octave Band Filter
  • Measurement Range : 30 dBA ~ 130 dBA)
  • Transmission Loss Measurement (Frequency Domain)

Reverberation Time Measurement for any room :

  • Reverberation Time (RT60)
  • Early Decay Time
  • T10,T20,T30 Measurement
  • Reverberation Time FFT ( RT60 for each Octave Band       Centre Frequencies)

Early Decay Time Measurement with T10,T20,T30 Reference curves

Early Decay Time Measurement with T10,T20,T30 Reference curves


Speech Transmissibility Index Measurement (STIPA Test)

  • Speaker Test for Speech Transmissibility Index Measurement
  • STIPA Signal is played on the speakers and intelligibility of the speech is measured and STI is calculated for a particular location in the room.
  • STI recommended values for different applications :

    STI (>0.76) – Recording Studios

  • STI (0.74~0.66) – Theatres, Speech Auditoria

    (Complex messages with unfamiliar words)

    STI (0.62) – Classrooms (Good speech intelligibility)

    STI (0.58) – Concert halls (High quality PA Systems)