PreSonus StudioLive 24.4.2 - Manual (Page 58)

3 Universal Control and VSL
3.8 Smaart System Check Wizards (StudioLive 16.4.2 and 24.4.2 only)
StudioLive ™ Software Library
Reference Manual
54
Secondary Mic Position
You will use two different secondary positions in a multi-point measurement. These
can be on- or off-axis measurements of a speaker within the listening area. This will
allow the SRA wizard to create an average frequency response of your sound system.
Avoid using locations outside the core coverage area of your system or on the edges.
The graphic below displays some good secondary measurement positions relative
to the primary position, as well as some positions that would be more problematic
than useful. With any mic position, avoid creating position-dependent anomalies.
1
2
2
2
2
2
2
2
2
2
X
2
A word of caution about ground bounce: Ground reflections become an
issue when a speaker is flown and angled down. The proper mic position,
in this case, will also catch the reflection of the signal off the floor.
Reflection arrives ~4 ms late...
In this case, you can choose from three options:
• Block the reflection with a baffle that is large enough to
be effective above 100 Hz (so at least 5’ by 5’).