On Qsources

From the field:

Mr. Michel Karroum,  TOEC Ltd Turin italy:
"We have been using the small Qsources source to perform testing at various larger and smaller sites for building qualification tests. The source and amplifier have shown to be reliable and I use them at my mayor client sites like  Generali assicurazioni, UBI Leasing, Unicredit, etc.
Now, it is difficult to imagine going back to using my other heavy sound source again. In using the Qsources set we have gained both in efficiency and flexibility"

Prof. Wieslaw Woszczyk, McGill recording Studios, Schulich school of Music:
“To explain how excellent these dodec speakers are. We measure large recording and performace site acoustics, and the Qsources dodec speakers are sufficiently powerful to fill with sound energy, even at some of the largest rooms we have measured. Their output is also well balanced across frequencies so it makes it easier to see all the needed parameters. Great job designing these little monsters. The enclosed photo is from recent measurements made at a relatively short distance (as it shows better on the picture).”

Prof. Dr. Gerrit Vermeir, Catholic University Leuven Belgium:
"The Qsources set has been used for room-acoustic measurements and isolation measurements in our laboratory. The experiences have been very positive; small size, easy handling weight, high sound power, high stability of the power during prolonged use, maximum achievable omni-directionality,... Additional advantages were the step-wise fixed levels on the amplifier unit. And, due to the compactness of the source we could use a good microphone stand instead of the large and heavy tripod we previously had to use with dodecahedron sources."
“Het gebruik van onze Qsources bron is momenteel beperkt gebleven tot zaalakoestische
toepassingen en tot een specifieke geluidisolatiemeting in labo. De ervaringen zijn uitermate positief: beperkte omvang en goed hanteerbaar gewicht, groot vermogen, hoge stabiliteit van het vermogen bij langdurig gebruik, maximaal haalbare omnidirectionaliteit,…  Bijkomende voordelen zijn de trapsgewijze maar vast instelbare standen van de versterkerunit en omwille van de compactheid van de bron kan ook volstaan worden met een stevig microfoonstatief in de plaats van een omvangrijke driepikkel die nodig is voor onze voorgaande omvangrijker dodecaëderbronnen."

 

Background info:

  • Noise and vibration excitation technology is the core of Qsources BVBA, as it is developing and producing sound sources, shakers, NVH specialized equipment and test-beds from 1992 onwards.
  • July 2009 launch of the INFRA-QSOURCES product range products for building and environmental acoustics applications.
  • Qsources is supplier to LMS International nv for the LMS Qsources product range.  Shakers and sources for the road, rail and air transportation industry, as well as other product development and industrial applications. 
    Link to these products on the LMS International website: LMS Qsources.
  • Unique driver technology and sensors are combined in practical products with exceptional properties to make measurements easier and more reliable.

The product scope:

  • Specialized sound sources (using proprietary patented technology)‏:

    • volume acceleration sources

    • accurate point sources

    • miniature sources

  • Integrated electro-mechanical shakers (using proprietary patented technology)‏:

    • Self suspending structure excitation shakers

    • Self aligning system

    • Force and acceleration sensor integration

    • Non-contact shakers for special applications

  • Measurement power amplifiers