Soft dB Opus Suite Building Acoustics Module Reverberation Time ISO 3382 - Manual (Page 3)

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1 Introduction
Congratulations on your purchase of the Opus Suite RT-60 Module.
The Opus Software Suite is a Sound and Vibration software. The current version contains six
measurement modules:
• SLM 4-ch module : 4-channels, Class 1 (IEC 61672 and ANSI S1.43)
• SLM & 3Vib module : 1 SLM channel (same as SLM 4-ch module) and 3 vibration channels
(ISO 8041 and ISO 2631)
• Data Logger module
• Building Acoustic module
• Sound Transmission (ASTM E 336/ISO 140-4)
• Reverberation Time (ISO 3382)
• Speech Privacy (ASTM E 2638 and ASTM E 1130)
• Building Vibration module (DIN 45669-1 and ANSI S2.46)
• Intensity module (IEC 1043)
The Opus Suite is intended to run on a Concerto. The software can also be installed on a computer if
an Alto-6ch or an I-Track unit is connected. Moreover, some post-processing functions are available
on a PC even if no compatible unit is detected.
The current user’s manual describes the RT-60 Module.
General Specifications – RT-60 Module
Measurement modes
• Automatic interrupted noise mode with built-in noise
generator
• Automatic Schroeder mode using impulse response
reconstruction
• Manual interrupted noise mode using auto-detection of
an external noise source interruption
• Manual impulse mode using auto-detection of an
impulse noise
Spectrum Bands
• 1/1 Octave bands (125 Hz to 4 kHz)
• 1/3 Octave bands (100 Hz to 5 kHz)
• Global
Available Results
• T10
• T20
• T30