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Setting the Audio Transmission Mode
There are three audio transmission modes, plus the option for disabling audio (see
To set the audio transmission mode:
1.
2.
3.
Setting the Audio Gain
You can adjust the volume of the audio input and output. To set the audio gain:
1.
2.
3.
Setting the Audio Bit Rate
You can adjust the audio transmission bit rate. Higher bit rates produce better audio quality but
require more bandwidth.The G.726 speech codec is used with 16, 24, 32, and 40 kbit/s
transmissions. The G.711 speech codec is used with u-law and A-law algorithms (64 kbit/s).
To set the audio bit rate:
1.
2.
3.
Table 4-6
Audio Transmission Mode Settings
Transmission Mode
Full-duplex (Talk and
listen simultaneously)
Simplex (Talk only)
Simplex (Listen only)
Disable (default)
Navigate to Streaming
Under Transmission Mode, select one of the following:
• Full-duplex (Talk and listen)
• Simplex (Listen only)
Click Save.
Navigate to Streaming
Under Server Gain Setting, in the Input gain and Output gain drop-down lists, select a
value from 1 to 6, or Mute (default = 3). Select a higher value to increase the volume.
Click Save.
Navigate to Streaming
In the Bit Rate drop-down list, select one of the following:
• 40 Kbps
• 32 Kbps
• 16 Kbps
• uLAW (64 Kbps),
Click Save.
Configuring Video and Audio Streaming | 51
Description
The local and remote sites can transmit and receive audio
(talk and listen) at the same time.
The local or remote site can only talk to the PTZ site.
The local or remote site can only listen to the PTZ site.
Audio transmission is disabled.
Audio.
• Simplex (Talk only)
• Disable
Audio.
Audio.
• 24 Kbps
• ALAW (64 Kbps)
default setting
Table
4-6).
800-11873V2 - A - 07/2013
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