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4.6.2 Set Volume Offset
The output of the Myriad raises and lowers depending on the ambient level of the surrounding environment. As
the ambient noise level changes the Myriad will adjust automatically, providing a focused intelligible sound
field directly in front of the speaker. How high the Volume Offset is set will dictate how well the speaker
contains the sound.
Volume Offset Adjustment:
Have a test subject stand in line with the front of the focused speaker. Raise or
lower the Volume Offset to a level that barely has 100% intelligibility. This level should be just above the
surrounding ambient noise. The Volume Offset should be set at a time when there is an average to high level of
ambient noise. Pink noise can be used to simulate these higher levels of ambient noise. A fan or vacuum
cleaner can also be used to simulate high levels of ambient noise. A good way to test your Volume Offset
setting is to walk to the side away from the center of the speaker. The audio heard from the speaker should
blend into the noise of the environment.
4.6.3
Set Response Time
To set Response Time move slider to desired setting. Response time controls how quickly the Myriad will
respond to the changes in ambient levels of noise. The Myriad can only respond to ambient levels during very
quiet passages in the program, or if the mute is engaged. If your audio program has a very short time between
tracks (less than a second) the response time should be set high, 5dB/s to 10dB/s. If you have more time
between tracks (i.e. 10 seconds of silence within five minutes of a program) the Response Time can be set at 1.0
dB/s. If you have time between tracks and only wish to have the Myriad adjust to slow trends in ambient levels
through out the day set the Response Time at 0.3dB/s or below. Higher Response time allows for quicker
response to changing levels but also can react to single outbursts of sound. Slower Response Time allows for a
smoother more gradual change in levels but will take longer to react.