Axis Communications 211a AXIS 210/210A/211/211A - Troubleshooting, Audio volume too low/high

AXIS 210/210A/211/211A - Troubleshooting 59

	Full duplex not supported.	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
	Firewall or router settings.	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.
	DC power not enabled for microphone.	If the microphone has a built-in amplifier then the DC power must be enabled on the
		Audio Settings page.
Audio volume too low/high
	Volume settings incorrect.	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.
	Input and output gain set incorrectly.	Change the input gain for the microphone and the output gain for the speaker to adjust
		the audio levels on the Audio Settings page.
Poor audio quality
	Too many users.	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.
	User too close to microphone.	Enable the speech filter in Audio > Advanced Settings.
	Feedback from speaker.	Enable the echo cancellation filter in Audio > Advanced Settings.
	Background noise.	Adjust the noise cancellation threshold and attenuation to reduce background noise
		levels in Audio > Advanced Settings.
	CPU overloaded.	Reduce the number of listeners and viewers and decrease the image resolution and com-
		pression.

For additional assistance, please contact your reseller or see the support pages on the Axis Website at www.axis.com/techsup