Measurement System

ODEON has a powerful measurement system for measurements of real rooms. On top of ODEON itself, you will also need at least one speaker (in most cases omnidirectional) and a microphone. ODEON generates a sweep for the speaker, that is recorded in the room (or outside) and then recalculated into an impulse response. The Sine Sweep Method is the most effective way of measuring room acoustics while suppressing background noise, both from other sounds and the electronics themselves.

  • All editions have the measurements system
  • The Auditorium and Combined editions include the ability to make auralisations from measurements

ODEON has a powerful measurement system for measurements of real rooms. On top of ODEON itself, you will also need at least one speaker (in most cases omnidirectional) and a microphone. ODEON generates a sweep for the speaker, that is recorded in the room (or outside) and then recalculated into an impulse response. The Sine Sweep Method is the most effective way of measuring room acoustics while suppressing background noise, both from other sounds and the electronics themselves.

  • All editions have the measurements system
  • The Auditorium and Combined editions include the ability to make auralizations from measurements

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Measuring System in ODEON

(NOTE: THIS IS NOT THE NEWEST MEASURING SYSTEM. Updated video being made, but the basics are the same.) 

A comprehensive introductory video on the ODEON Measuring system by Claus Lynge Christensen: How to make a measurement, how to process it and how to import measurement results to simulations.

Load and analyse impulse responses

If you possess the WAV file of an impulse response, even if it was obtained from outside of ODEON Room Acoustics Software, ODEON can load it and derive the room acoustic parameters from it. You can even load multiple impulse responses at once for statistical results.

In this video, we take a look at:

  • How to load an impulse response example
  • Onset time and truncation time
  • Performing snapshot measurements with a smartphone
  • Loading a series of hand claps in a single WAV file
  • Viewing decay curves
  • Common issues in impulse responses
  • Viewing room acoustic parameters
  • Frequency response, cepstrum, and spectrogram
  • New “Play It!” feature for easy auralisation
  • Loading multiple impulse responses
  • Viewing individual and statistical results

Two Step Sound Source Calibration

The two step calibration in ODEON makes it easier AND safer to calibrate the measurement system by adding a second step to the calibration in the laboratory and repeating this second step in-situ, just before performing the measurements.

 

Onset and Truncation Time

Although ODEON automatically detects the onset and truncation times in an impulse response, it is often desirable to have manual control on these parameters. The measuring system in ODEON 13 allows such versatility.