USING THE CLIENT SOFTWARE
5.7 Audio stream control
Pressing the 
(Audio control) button on the main control panel brings up a control window shown in Figure 19. From here you can control the incoming audio data from the DVS and outgoing voice audio to the DVS (G723.1compressed to 5.3 K bit per sec).
A Red color square at the left top corner of each audio control button means an Enabled state.
Note: DVS MIC IN is designed for an
Volume control for PC Audio input: LINE IN or MIC IN, depending on PC input selected
Mute all audio
Volume control for PC audio output (if enabled)
Current status information | Toggle DVS MIC IN |
|
Selection PC input type. |
| |
Toggle DVS |
| |
(LINE IN / MIC IN) |
| |
PC encoding gain | audio output | DVS output volume |
|
|
PC decoding gain | Auto gain control |
Toggle PC MIC or | Acoustic Echo Cancellation |
LINE IN inputs. |
|
Toggle PC Speaker (output) | DVS MIC IN volume |
Figure 19 Audio stream control window
AGC (Automatic Gain Control) – controls the DVS microphone input. When this feature is enabled, the MIC sensitivity is changed with the current voice level in the monitoring (i.e. hearing) area. This is extremely useful for low audio level amplification. It is strongly recommended not to use this feature with the remote unit audio output. Use AEC to cancel the echo from the remote speaker to the remote MIC. Since the AGC mode is incompatible with the MIC IN volume, the slider shown is disabled in Figure 19. It is also incompatible with AEC mode.
AEC (Acoustic Echo Cancellation) – works only when both DVS in/out audio channels are enabled. Use this feature to avoid echo from the DVS unit’s speaker to the DVS unit’s MIC.
36 | Digimerge Dialup Video Server User’s Guide |