Specifications

Danish Interpretation Systems Technical Specifications
Printed in Denmark
19
AUDIO_CONTROL_MU_SPEAKER_VOLUME
Command item value: 2
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <28> <2> <Gain Level> <0> <CRC> <STOP>
This command is used to set the gain in amplifier 6. The new gain is given in dB by the parameter
Gain Level which must be in the range –41dB - 0dB. Setting the gain to –41dB results in switching the
amplifier off (thus blocking the signal).
AUDIO_CONTROL_MU_SPEAKER_UP
Command item value: 3
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <28> <3> <0> <0> <CRC> <STOP>
This command increments the gain in amplifier 6. If the gain is already set to 0dB nothing happens.
AUDIO_CONTROL_MU_SPEAKER_DOWN
Command item value: 4
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <28> <4> <0> <0> <CRC> <STOP>
This command decrements the gain in amplifier 6. If the amplifier is switched off nothing happens. If
the gain is set to -40dB before the command is issued the amplifier is switched off.
AUDIO_CONTROL_MU_LINE_OUT_VOLUME
Command item value: 5
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <28> <5> <Gain Level> <0> <CRC> <STOP>
This command is used to set the gain in amplifier 5. The new gain is given in dB by the parameter
Gain Level which must be in the range –41dB - + 20dB. –41dB results in switching the amplifier off
(thus blocking the signal).
AUDIO_CONTROL_MU_MIC_TO_SPEAKER
Command item value: 6
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <28> <6> <Gain Level> <0> <CRC> <STOP>
This command is used to set the gain in amplifier 2. The new gain is given in dB by the parameter
Gain Level which must be in the range –41dB - + 20dB. –41dB results in switching the amplifier off
(thus blocking the signal).