The Klippel Near Field Scanner (NFS) revolutionizes the art of loudspeaker measurement.
Measurement of the spherical radiation of a sound source can be made in 1° increments producing incredibly accurate radiation balloons and in a “typical” room-not an anechoic chamber. By measuring the sound source in the near field, room reflections can be separated from direct sound. Holographic processing algorithms developed by Klippel then convert the near-field measurements and reflections into a far field response. The results can be viewed as 3D radiation balloons, horizontal and vertical polar plots at any user-defined frequency. This also allows for full spectrum SPL measurements at any point in space- and at any distance.
Near field measurements have higher S/N and are less prone to reflection and air propagation effects. The scanning process can be performed in a non-anechoic environment through field separation where the outgoing wave (direct sound) is separated from the incoming waves (reflected sound).
The NFS is ideal for measuring the power response of large professional live performance speakers without the need for a huge chamber or the complication of precisely rotating a large and heavy speaker cabinet. The sound pressure in the near field can also be used to evaluate small studio monitors, tablets, laptops, and other personal audio devices.
Frustrated in getting your speaker to the consultant using EASE (Enhanced Acoustic Simulator for Engineers) on their projects? Warkwyn can insert your speaker’s acoustic data into the growing EASE speaker database as a benefit of Near Field Scanning; voila—done!
This is an incredibly powerful analytical and predictive tool that can save weeks of inefficient trial and error design work. Another way that Warkwyn can save you precious time and expense.