RESEARCH DEPARTMENT
ALL INDIA RADIO & DOORDARSHAN
Revenue Generation
During the year 2018-19, acoustic material provided by the various firms have been tested in Acoustic Lab and revenue total amount of Rs 342672/- has been earned . Further the acoustic material received for testing is under progress.
Acoustic Test Facilities available:
In Laboratory
-
- Noise Reduction Coefficient (NRC).
- Sound Transmission Class (STC)/Sound Reduction Index (Rw).
- Sound Absorption Coefficient (SAC).
- Impact Insulation Class (IIC).
On site Measurement
- Sound Level measurement
- Reverberation Time
- Ambient Noise
- Sound Transmission Class
- Impact Insulation
Tests on Electro-Acoustic Transducers:
In Anechoic Chamber
Microphone Testing
-
- Sensitivity.
- Frequency Response.
- Polar Pattern.
Loudspeaker Testing
- Sensitivity.
- Frequency Response.
- Polar Pattern.
NRC Report
STC Report
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