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In Situ Compensation (ISC)

Features and Benefits

  • Fast In-Situ measurements
  • Simulates standard conditions
  • Compensation of room modes
  • Calibration of measurement rooms and test boxes
  • Accurate transient measurement

Most standard measurements are performed at a single point (e.g. 1m On-Axis). The In Situ Room Compensation (ISC) module copes with an imperfect acoustical environment by calculating a complex filter that compensates for room effects. Using this technique, simulated free field data can be acquired according to the IEC standard 60268-21.



Requirements

dB-Lab software (210 or higher)


Related Information

Other Modules of the R&D System 
Transfer Function Measurement (TRF):
  Measurement of transfer function and harmonic distortion
Tone Burst Measurement (TBM):
  Peak SPL measurements using tone burst signals (CEA2010)
Multi-Tone Measurement (MTON):
  MT-fundamental and distortion, continuous max SPL related to ANSI/CEA-2010-B, ANSI/CEA-2034, 
  IEC 60268-21 considering thermal compression, MT-distortion, LPM required 
Near Field Scanner (NFS):
  Visualisation of the sound pressure field in the nearfield 

Literature and Papers
Fast Loudspeaker Measurement in Non-Anechoic Environment

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