Qref, Omni-directional sound power reference source
The most interesting aspect of this source is the real time sound power proportional signal. Contrary to traditional solutions for sound power reference sources this sound source allows user selected signals; broadband noise, sine, chirps, etc. This allows flexible adaptation to the background noise of the environment. A third-octave band calibration chart with the refrence signal to sound power ratio is provided with each individual source.
*These specifications may be adapted if necessary to improve the quality of the product.
**When driven with Qam generated low crest-factor pink noise at 22 Celsius ambient temperature.