FIELD MEASUREMENTS
The acoustical field performance of buildings and rooms has to meet the requirements described by standards and legislation. Level Acoustics has the facilities and knowledge to perform various acoustical measurements in the field. In addition to standard measurements, we can also conduct specialised field research, such as the mapping of the room acoustics of a hall and the measurement of speech intelligibility. The latest techniques are used by measuring room impulse responses with DIRAC software.

Some examples of possible measurements are found here.

 
Sound transmission
- Sound Level Lp
- Airborne sound transmission between rooms: R', DnT, Ilu,k
- Impact sound transmission of floors LnT , Ico
- Airborne sound  insulation of facades GA,k
- Noise from services LI,A,k
- Vibrational transmission research

Room acoustical parameters like
- Reverberation Time T30 , T20 , T10 , Tx
- Early decay time EDT
- Bass ratio BR

Energy ratios:
- Clarity C80 , C50 , Cx
- Definition D80 , D50
- Strength G
- Center Time Ts
- Hallmass H

Spaciousness:
- Inter-aural cross-correlation coefficient IACC
- Lateral Energy Fraction LF

Satge parameters:
- Support ST1, ST2

Speech Intelligibility
- Speech Transmission Index STI, RASTI, STIPA
- Articulation loss of consonants ALC
 























 

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