Adjusting the volume of the receivers
Start the transmitters to be used.
Ask someone to help you adjust the volume to a comfortable level. In
volume settings, adjust the volume for each receiver separately (WR1 &
WR2).
The speaker begins to speak into the microphone in a normal voice. The
person who is listening makes the necessary volume adjustments. Test
all parts of the room to check that the sound is distributed in a good way.
If any problems with the sound distribution are revealed, the speaker
positions may need to be changed. Take room acoustics into account.
Sound distribution can also be improved by using multiple speakers
in the room. Using two speakers instead of one typically improves the
sound distribution substantially in a “classroom-like” room.
The speakers should be a support and not drown out the direct sound
from the person speaking.
A common description of how the volume should be set is that it should
feel like a greater change if the speakers are turned off than when they
are being used. This requires that the speakers only be there as an aid
and do not drown out the direct sound from the person spreaking.
If any problems with feedback occur, this may be due to the high volume
set on the speaker.
When using speakers in, for example, a classroom where “push-to-talk
microphones” are used by students, it is especially important to ensure
that the speakers are not positioned too close to the students. This is to
avoid feedback when the student microphones are activated.
A good solution is often to position the speakers high up, at the very
front of the classroom, as shown in the illustration.
In instances where a higher volume is required, for example, if speakers
are used in a large room, the use of a boom microphone is recommend-
ed to avoid feedback. In these cases, the speaker should be positioned
between the speaker and the audience, directed towards the audience in
order to avoid feedback.
