Sound Source

Alfa Acoustic Omni‐directional sound source is designed to measure RT, sound transmission loss measurements in Lab or Onsite. This omni‐directional source consists of 12 lightweight high wattage loudspeakers connected in series and parallel.

The shape of this sound source makes it special, as all speakers are mounted on a dodecahedral housing. This ensures a complete omni‐directional radiation diagram dodecahedral housing. This ensures a complete omni directional radiation diagram.

This omni‐directional sound comes with a special power amplifier designed to deliver required power output to omni‐directional sound source for generating sound pressure levels more than 120 dB.

• Measurement of sound insulation in buildings and of building elements ISO 10140-2, ISO 140-4, ISO 16283-1
• Measurement of the reverberation time of rooms ISO 3382-1/-2
• Measurement of sound absorption in a reverberation room ISO 354 / ASTM C423
• Measurement of Noise Insulation Class (NIC)
• Measurement of Sound transmission loss in Reverberation chamber as per ASTM E90