Reverberation Time
The XL3 measures the reverberation time in octave bands from 63 Hz – 8 kHz using the standardized T20 or T30. The room may be excited using an impulse source or an interrupted pink noise. The Acoustic Analyzer averages all the recorded decays for each measurement position automatically. Additionally, installing the Extended Room Acoustics Option enables reverberation time measurement in one-third octave resolution, calculating the spatial average of the room and simultaneous T30/T20/T15/EDT measurement on the XL3 Acoustic Analyzer. An audio file of the level decay may be recorded for more detailed analysis.
Features
- ISO 3382 and ASTM E2235 based on Schroeder backward integration
- Octave band: 63 Hz – 8 kHz
- Measurement parameters T20, T30
- Impulse and interrupted noise source
- Automatic averaging for each position
- 1/3 octave band: 50 Hz – 10 kHz (optional)
- T20, T30, T15, EDT simultaneously (optional)
- Calculating spatial room average (optional)
- Audio recording (optional)
- Minimum trigger level (optional)
- Decay curve (optional, planned)