Operating Instructions
•Audio features such as camera microphone sensitivity and mute during pan/tilt can be set up on the Audio page (see page 75).
•If you are running other applications or opening multiple windows, the audio may be interrupted or delayed.
•When the image is refreshed during any operation such as preset registration or a web browser refresh, the volume is reset to the default (midrange) position. Audio that was muted is enabled.
•The audio may be interrupted due to your PC's performance or network environment. Reduce the max. bandwidth (see page 42 and page 47).
•If the camera is accessed while the PC user visits other websites, the active microphone may pick up audio from the PC's speakers. Be careful with it.
•Talk feature cannot be used from a PC when the camera is accessed via a proxy server.
•If you cannot listen to the audio or talk from your PC, see 2.6 Audio Problems in the Troubleshooting section of the Installation/Troubleshooting.
•If you use external microphone, excessive length or poor quality microphone cable can cause a degradation in audio quality.
•The cables for the external microphone must be less than 7 m (about 23 feet) long.
•To talk to the camera from your PC, an external amplified speaker must be connected to the camera. The speaker connects to the camera with a stereo audio cable similar to that used by your PC. Though the connector is stereo, the audio is not.
•If you install the camera outdoors, external microphone or external speaker must be outdoor compatible.
Cable diameter: 
2
0.3 mm or below
3.5 mm mini plug
External Microphone
GND | ||
3.5 mm stereo mini plug | Signal | |
| ||
External Speaker |
|
|
(Output impedance 560 | line level) | GND |
For Microphone |
| Not |
| Connected | |
|
| |
|
| Signal |
| For Speaker | |
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