Specifications

Danish Interpretation Systems Technical Specifications
Printed in Denmark
33
This message gives the following status information about the microphone with the address
256*Microphone Address MSB + Microphone Address LSB
Information Stored in Meaning
Microphone State Bit 0 of State A 1  Microphone is on
0  Microphone is off
Request State Bit 1 of State A 1  Microphone is in the request queue
0  Microphone is not in the request queue
Microphone Mute
State
Bit 2 of State A 1  Microphone is muted
0  Microphone is not muted
Request Position Request Position The microphones position in the request queue. This
number is undefined if the microphones isn’t in request.
Delegate Off State Bit 0 of State B 1  The microphone is a chairman unit and has activated
the delegate off state.
0  The microphone hasn’t activated the delegate off state.
Muting State Bit 1 of State B 1  The microphone is a chairman unit muting the system
0  The microphone does not mute the system.
4.5.3 Messages in EXTERNAL_AUDIO_STATUS_MU
The following subsections describe each of the messages in the group. The message format
descriptions have the same meaning as in section 3.4.4. The amplifier numbers in the following refers
to the diagram in section 4.3.3.
AUDIO_STATUS_MU_SPEAKER_VOLUME
Command item value: 2
Message format:
<START> 'c' <ID> <MSB addr> <LSB addr> <29> <2> <2> <Gain Level> <CRC> <STOP>
The CU sends this message when the gain setting for amplifier 6 is changed. The new setting in dB is
in the field Gain Level. A setting of –41dB signifies that the amplifier is switched off.
AUDIO_STATUS_MU_SPEAKER_ON
Command item value: 3
Message format:
<START> 'c' <ID> <MSB addr> <LSB addr> <29> <1> <3> <CRC> <STOP>
The CU sends this message when the speakers on the delegate microphones are switched on.