Enabling/Disabling Filters (Advanced) - Patton electronics SmartWare R.3.20 Software Configuration Manual

SmartWare Software Configuration Guide
Mode: Profile VoIP
Step
node (pf-voip)[ name ]#dejitter-mode mode Specify the dejitter buffer as adaptive, static or
1
node (pf-voip)[ name ]#dejitter-max-delay
2
max-delay
Enabling/disabling filters (advanced)
The voice decoder output is normally filtered through a perceptual post-filter to improve voice quality. Like-
wise a high pass filter is normally used to cancel noises at the coder input. When the communication channels
include several SmartNodes in tandem as shown in
cause degrade signal quality. In this case, the user can choose to disable the post-filter and the high-pass-filter.
Note
Filtering only occurs with G.723 and G.729 codecs.
Node
Node
ISDN
This procedure describes how to disable post-filtering and high-pass-filtering.
Mode: Profile VoIP
Step
node (pf-voip)[ name ]#no post-filter
1
node (pf-voip)[ name ]#no high-pass-filter
2
Example: Disable filters
The following example shows how to disable the decoder output post-filter and the input high-pass filter.
node>enable
node#configure
node(cfg)#profile voip myProfile
node(pf-voip)[myProfi~]#no post-filter
node(pf-voip)[myProfi~]#no high-pass-filter
VoIP profile configuration task list
Command
Node
Node
VoIP
Figure 82. Multiple tandem and sequential post filtering
Command
static-data.
Specify the maximum delay in milliseconds that the
dejitter buffer is allowed to introduce. This setting
is valid for all modes.
figure 82, sequential post filtering or high pass filtering can
Sequential post filtering
PSTN
Disable decoder output filter
Disable decoder input high pass filter
40 • VoIP profile configuration
Purpose
Node Node
Node Node
VoIP
Purpose
ISDN
516