Lectrosonics DMTH4, Справочное руководство

Страница: 49 / 70

Digital Telephone Hybrid
Rio Rancho, NM
49
DMTH4 Audio Output Commands
Command Description
outgn Audio output gain
outlv Audio output level (dBu RMS)
outattn Audio output attenuation
outmt Audio output mute status
outmttog Audio output mute toggle
outsrc Audio output channel signal source
Note: All commands are terminated with an
ASCII carriage return character (hex code 0x0D),
represented by <CR> in the examples. All
responses are terminated with an ASCII carriage
return, line feed pair (hex codes 0x0D, 0x0A),
represented by <CRLF> in the examples. An
ellipsis (...) represents members of an array that
have been omitted from an example for the sake of
brevity.
outgn (output gain)
This command is used as a query to read the output
channel gain, or as an update to set the gain. The output
channel is specified by using the address syntax. Ad-
dresses must be in the range 1 to 24. The data type is
integer, in the range -70 to +20, representing the gain in
dB. If the channel address is a wildcard, then the data
type is an array of integer of size 24. In this case the
value 99 may be used in an update to indicate that a
particular output gain is to remain unchanged by the
command.
Examples:
Request Response
Query
outgn(1)?<CR> OK -3<CRLF>
Query
outgn(*)?<CR> OK{3,-4,0}<CRLF>
Update
outgn(2)=5<CR> OK<CRLF>
Update
outgn(*)={0,-5,99}<CR> OK<CRLF>
outlv (output level)
This command is used as a query to read the output
channel level. The output channel is specified by using
the address syntax. Addresses must be in the range 1
to 3. The data type is integer, in the range -70 to +20,
representing the RMS audio level in dBu. If the channel
address is a wildcard, then the data type is an array of
integer of size 3.
Examples:
Request Response
Query
outlv(1)?<CR> OK -23<CRLF>
Query
outlv(*)?<CR> OK{3,-4,-66}<CRLF>
outattn (output attenuation)
This command is used as a query to read the output
attenuation value, or as an update to set the value. The
output channel is specified by using the address syntax.
Addresses must be in the range 2 to 3.
The output
attenuation feature is not available for the telephone
interface output (channel 1). The data type is integer
and the following values are allowed:
• 0 means normal operation, the output channel is not
attenuated.
• 20 means the output channel is attenuated by 20 dB.
• 40 means that the output channel is attenuated by 40 dB
.
Examples:
Request Response
Query
outattn(2)?<CR> OK 0<CRLF>
Update
outattn(3)=20<CR> OK<CRLF>
outmt (output mute)
This command is used as a query to read the output
channel mute status, or as an update to set the status.
The output channel is specified by using the address
syntax. Addresses must be in the range 1 to 3. The
data type is integer, either “1” meaning that the output
is muted, or “0” meaning that it is not. If the channel
address is a wildcard, then the data type is an array of
integer of size 3. In this case the value 99 may be used
in an update to indicate that a particular output mute is
to remain unchanged by the command.
Examples:
Request Response
Query
outmt(2)?<CR> OK 1<CRLF>
Query
outmt(*)?<CR> OK{0,0,1}<CRLF>
Update
outmt(3)=0<CR> OK<CRLF>
Update
outmt(*)={0,1,99}<CR> OK<CRLF>
outmttog (output mute toggle)
This command is used as a simple comand to toggle the
output channel mute status. The output channel is speci-
fied by using the address syntax. Addresses must be in
the range 1 to 24.
Example:
Request Response
Command
outmttog(2)<CR> OK<CRLF>