This command is saved to non-volatile memory only as part of a preset. The state of this command will be
restored after power-up only if a preset is saved and that preset is set to be the power-on preset.
Example Description Status Message
B01REFASGN31
Configure the AEC on input
channel 3 to use AEC Reference 1
(R1).
B01REFASGN31
B01REFASGN2?
Query which AEC reference is
currently being used for the AEC
on input channel 2 .
B01REFASGN2x , where x is either 1, 2, or 3
depending on which AEC reference is currently being
used.
B01REFASGN*3
Configure the AEC on all input
channels (1-4) to use the EF Bus
reference.
B01REFASGN*çççç
B01REFASGN*?
Query which AEC reference is
currently being used for the AEC
on each of the input channels.
B01REFASGN*abcd, where a-d are each either à, å,
or ccedil; depending on which AEC reference is
currently being used on each of the input channels.
8.143. REFGAIN -- Set Reference Output Gain
This command sets the effective output gain of the corresponding AEC reference. When doing volume
control of room speakers, it is a good idea to adjust this reference gain along with the speaker output gain
so that the AEC is aware of any volume changes. This will help prevent short echoes when volume changes
are made.
There are two AEC references on the EF2280, EF2241, and EF2241, so there are two separate commands,
REFGAINR1 and REFGAINR2, for controlling the effective output gain of R1 and R2, respectively.
There is only one AEC reference on the EF2211 and EF2210, so there is only one command, REFGAINR1 for
controlling the effective output gain of R1.
This command was introduced in firmware version 2.5.0.
This command is an integer command. See
Section 6.2 for more information on this type of command. The
minimum and maximum values for this command are -100 and 20, respectively.
This command is saved to non-volatile memory only as part of a preset. The state of this command will be
restored after power-up only if a preset is saved and that preset is set to be the power-on preset.
Example Description Status Message
B01REFGAINR16
Set effective output gain of AEC
reference 1 (R1) to 6 dB.
B01REFGAINR16
B01GAINP>3
Increase phone output gain by 3 dB.
B01GAINPx , where x is the new value of the
phone output gain. If this command was issued
after the example above, then the status message
would be B01GAINP9 .
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