Operation Manual

EF1210 C
OMMAND
S
ET
R
EFERENCE
ASPI Digital - The Sound of DSP Technical Support: 404.892.3200 71
NC
N
-
ENABLE
/
DISABLE NOISE CANCELLATION ON CHANNEL
N
The noise cancellation feature improves the signal-to-noise ratio of the incoming
microphone speech by either 6 or 10 dB. The NC
n
command enables or disables this
feature on the channel specified. The NCL
n
command selects between 6 and 10 dB of
noise cancellation. Noise cancellation is applied to each microphone channel.
The factory default setting for NC
n
is 1 (on).
Remote Commands
The following commands can be sent by the remote control device to enable or dis-
able noise cancellation on channel n.
EF1210 Messages
The following messages are sent by the EF1210 in response to an NC
n ? command, or
in response to any NC
n
command when acknowledgment mode is on.
Example
In the following example, the remote control device turns noise cancellation off on all
channels on the EF1210 with Device ID number 12. Then it turns noise cancellation
on on channel 1 and requests the noise cancellation status on channel 5 of the same
EF1210. Acknowledgment mode is enabled.
Remote Command Effects
NC
n 0 Turn off noise cancellation on channel n.
n ranges from 1 to 8.
NC
n 1 Turn on noise cancellation on channel n.
NC
n 2 Toggle noise cancellation on or off on channel n.
NC
n ? Request status of noise cancellation on channel n.
EF1210 Message Message meaning
NC
n 0 Noise cancellation is currently off on channel n.
NC
n 1 Noise cancellation is currently on on channel n.
Note.
It is possible to use a wildcard (*) for setting NCn to 0 or 1 (turn-
ing on/off), but not for querying or toggling.
Remote Command EF1210 Message
C12NC*0 C12NC*0
C12NC11 C12NC11
C12NC5? C12NC50