Laying Out Venue Planes - Tannoy QFLEX User Manual

6.2 LAYING OUT VENUE PLANES

1. Click on ADD to create a new venue plane(s)
2. Choose SPL to target this particular area from the loudspeaker.
NB. Other Options here are
Silent – This is basically a probe to view the out of beam attenuation on the SPL map.
Don't Care - In the straight forward default case the steering algorithm will aim for silence in all unspecified directions, the user
can specify areas where avoiding areas does not matter, for example, areas of high absorption. This may improve results
elsewhere, but any differences will be marginal.
3. SPL (x1) is the front, and SPL (x2) is the rear of this specified venue plane. Specify your target/desired SPL here.
Specifying these levels has nothing to do with setting absolute volume levels. After optimization you will be notified if
there is enough headroom to reach your desired SPL. Manipulating these two levels allows you to adjust the intensity
of the sound beam across the specified venue plane. Normally the goal is to achieve an even SPL distribution across
the whole venue plane.
Hint: Where even coverage is required over large areas, splitting the venue plane into two sections may yield better results.
In this instance you are effectively creating two separate beams which you can manipulate independently, giving you more
control. Again, the goal is to achieve an even SPL distribution across the whole venue plane.
4. The first X co-ordinate of the venue plane.
5. The Second X co-ordinate of the venue plane.
6. The First Y co-ordinate of the venue plane.
7. The Second Y co-ordinate of the venue plane.
(You may have a sitting or a standing audience. Remember to factor for the listening height when specifying the
Y coordinates.)
8. Here you can label your specified venue plane. This is especially helpful if you have multiple target areas.
9. Frequency Band – To view the beam steering characteristic at different frequencies you can view octave bands or the
following averages; Broad-Band(125Hz – 8kHz), Low-Band (125Hz - 1kHz), Mid-Band( 250Hz - 2kHz),
High-Band (1kHz – 8kHz)