13
Using
response of your entire audio sound system including the room
characteristics. Then setup the different sound levels of the used
speakers or channels (with your surround audio equipment).
Reposition the various speakers within the room or setup the sound
characteristic using an equalizer until the desired audio sound
characteristic has been obtained. The size, shape and furnishing of
a room can have a tremendous effect on a home theatre system’s
performance, for example.
Note:
If WEIGHTING is set to
C
, the meter’s frequency response is flat
from 32 to 10000 Hz (±3 dB). Above 10 kHz the frequency response
of the meter drops off rapidly. Therefore avoid using test tones with
a frequency higher than 10 kHz.
RCA Audio Output
The RCA output jack (6) lets you connect the meter to recording
equipment, to high-impedance headphones, oscilloscopes,
frequency analyzers, sound card of your PC or to other measure-
ment equipment. This way you can record or interpret the noises
recorded by the meter’s microphone. Note that the meter’s response
will not be flat due to the A- and C-weighting characteristics.
Use A-weighting for voice recordings or C-weighting for full-range
musical material.
1. Connect the interpreting or recording equipment to the RCA
output jack (6).
2. Setup the range so the maximum needle deflection is never
greater than +4 dB to prevent the built-in amplifier from clipping.
Calibration
A small calibrating screw (5) is located at the left side of the
housing. Do not adjust this screw as this can decrease the accuracy
of the meter. Have the meter only calibrated by an audio profes-
sional or turn to our customer service.