ClearOne AP400 - Manual (Page 60)

Appendices ~ Appendix E: Serial Commands 56
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MHP
This command changes or reports back the state of the high
pass filter for a microphone.
[DEVICE] MHP
Explanation
CH= 1-4 Parameter to apply to the specified
microphone channel
CH= * Parameter to apply command to all
microphone channels
X=0 Parameter to set the state to OFF
X=1 Parameter to set the state to ON
X=Null Parameter to return the current state
Return Values
The command will return the updated condition (On=1, Off=0)
of the high pass filter in the same format as the command.
MINIT
This command sets or reports the current setting for the
initialization string sent to the modem when in modem mode.
[DEVICE] MINIT
Explanation
STRING can be any character combination up to 30 characters.
If STRING is not specified the command returns the currently
assigned string. To specify no initialization string, set STRING
to “CLEAR.”
Return Values
The command will return the updated string in the same format
as the command was issued.
MLINE
This command changes or reports back how much gain is
applied to the microphone input. The three settings are 0dB,
25dB, and 55dB.
[DEVICE] MLINE
Explanation
CH= 1-4 Parameter to apply to the specified
microphone channel
CH= * Parameter to apply command to all
microphone channels
X=1 Parameter to set the state to 55dB gain
X=2 Parameter to set the state to 25dB gain
X=3 Parameter to set the state to 0dB (line level)
X=Null Parameter to return the current state
Return Values
The command will return the updated condition of the gain
applied in the same format as the command.