Need to measure reverberation time with your sound level meter? Common room acoustics measurements of RT60, T30, T20 explained.

The reverberation time (or RT60) describes the time it takes for the sound to decay by 60 dB after the sound source is removed. The reverb time is affected by the size and shape of the room, the building materials and techniques used and all objects (including people) within the room.

Quality indicators and ratings (Poor, Fair, Good) for Room Acoustic measurements are adapted from measurement procedures described in ISO 3382-1 (2009), ISO 3382-2 (2008) and application engineering recommendations for the SoundAdvisor™ Sound …

When room acoustics properties are at issue, the RT60 Reverberation Time solution represents an essential tool for obtaining accurate measurement results. The easy setup enables reliable measurement for effective modification of room parameters and easy achievement of desired reverberation time.

2014年3月4日 · The standardised measure for this is RT60, which refers to the time taken for the sound to decay by 60 dB. Equipment required for this measurement: Balloons Recording equipment Computer (PC or Mac) Method. First, set-up your recording equipment so that it is recording to either 16 or 24bit WAV.

Dewesoft acoustic test solutions support all essential sound measurement applications, including Sound Level, Sound Power, Sound Quality, Sound Intensity, Octave Band Analysis, Reverberation Time (RT60), and more.

Measuring the RT60 reverberation time requires a suitable sound level meter and a sound source to generate an excitation signal. Suitable sound level meter: The sound level meter needs to be able to measure a frequency spectrum in 1/1 and/or 1/3 octave bands

Spectra Tech employes sophisticated equipment and software to measure and document the Room Reverberation Time (RT60), considered to be a universal descriptor of sound intensity. We can also provide assistance in designing solutions to reduce excessive reverberation times.

A Log Sweep from 250Hz – 15kHz is played through an omni-directional source in the room under test and four microphones measure the impulse responses generated. These waveforms are analyzed using the Time Selective Response and room acoustics algorithm.