Axis 210 User Manual page 59

Full duplex not supported.
Firewall or router settings.
DC power not enabled for microphone. If the microphone has a built-in amplifier then the DC power must be enabled on the
Audio volume too low/high
Volume settings incorrect.
Input and output gain set incorrectly.
Poor audio quality
Too many users.
User too close to microphone.
Feedback from speaker.
Background noise.
CPU overloaded.
For additional assistance, please contact your reseller or see the support pages on the Axis
Website at www.axis.com/techsup
AXIS 210/210A/211/211A - Troubleshooting
Sound card does not support full-duplex. For information on how to check if your sound
card supports full-duplex, please visit http://support.microsoft.com
The AXIS 210A/211A works locally, but not externally. Check the Internet firewall set-
tings with your system administrator or reconfigure the default router settings.
Audio Settings page.
The volume of the microphone or speaker connected to the AXIS 210A/211A is either too
high or too low. Change the volume for the speaker or microphone in the Live View page.
Change the input gain for the microphone and the output gain for the speaker to adjust
the audio levels on the Audio Settings page.
Too many users/clients connecting to the AXIS 210A/211A may affect the sound quality
adversely. Try limiting the number of clients allowed to connect on the Audio Settings
page.
Enable the speech filter in Audio > Advanced Settings.
Enable the echo cancellation filter in Audio > Advanced Settings.
Adjust the noise cancellation threshold and attenuation to reduce background noise
levels in Audio > Advanced Settings.
Reduce the number of listeners and viewers and decrease the image resolution and com-
pression.
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