User Manual

Table Of Contents
ProVisionaire Design DME7 Component Guide
12
c [ECHO SUPP] knob
Sets the strength of the echo canceler function. As the strength is increased, more echo
cancellation is performed, but if the strength is raised too high, the necessary signals will
also be removed, which will decrease the sound quality of the speaking voices.
This can only be set when Custom has been selected for [AEC EFFECT].
d [DEREVERB] knob
Sets the strength of the dereverberation function, which removes the reverberation
generated in closed rooms. Please set this to a higher value for rooms with a large
amount of reverberation. If the strength is raised too high, the necessary signals will also
be removed, which will decrease the sound quality of the speaking voices. Setting to the
lowest necessary strength is recommended. Reverberation is not removed when set to 0.
Best used with "DEREVERB" set to Off (0) for rooms with almost no reverberation.
This can only be set when Custom has been selected for [AEC EFFECT].
e [REVERB TIME] knob
Sets the reverberation time inside a room. Normally, no change from the Default value of
0.6 s is necessary. When using the AEC in a glass room or other location that has more
reverberation than a normal conference room, adjust to increase the target REVERB TIME
to 0.61.0 s. For events in large halls, please set the reverb time to suit the hall's
reverberation time.
This can only be set when Custom has been selected for [AEC EFFECT].
Reference
f [FE DELAY] knob
Sets the delay time between the speakers and MIC1 by comparing the audio output from
the speakers and the audio picked up by the microphone. This is normally used in AUTO.
When AUTO is turned Off, the knob will be shown.
How to manually set FE (Far End) Delay
1. Please place the microphone connected to MIC1 at the closest position to the
speakers sending sound from the far area.
The FE Delay value is calculated based on the position of the microphone
connected to MIC1
g [DELAY OFFSET] knob
The calculation of the FE Delay value is based on the position of the microphone
connected to MIC1. If the microphone connected to MIC1 is placed at the closest
position to the speaker, as recommended, it will not be necessary to implement a Delay