Axis Communications Security Camera 215 PTZ User Manual

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AXIS 215 PTZ/AXIS 215 PTZ-E - Setup
17
Advanced Audio Settings (AXIS 215 PTZ only)
The Advanced Audio settings allows you to tune the external microphone connected to the AXIS 215 PTZ to
suit your environment.
Enable speech filte
r improves the sound quality when the microphone is placed close to the person talking and
can also help reduce background noise. The filter cuts the lowest and the highest frequencies. The bypass
frequency range is approximately 250Hz to 3700Hz (measured at -10dB cut-off break points).
Enable echo cancellation reduces acoustic echoing
if sound from the speaker is captured by the microphone.
Noise canceling is a way of reducing th
e background noise when there is no useful audio present. A typical
application could be that the camera is set up in a noisy environment, and you are only interested in hearing
audio from the AXIS 215 PTZ when someone is speaking close to the microphone.
Noise canceller attenuation - when
the incoming sound is louder than the threshold, it will pass without any
changes. When lower than the threshold, the incoming sound will be reduced by a certain attenuation factor.
The threshold level should be set higher than the background noise, but lower than the useful audio.
There is a trade-off between noise canceling and sound quality. In
other words, increasing the noise canceller
attenuation deteriorates sound quality. Adjust the threshold and the attenuation to an optimum by listening and
changing the levels.

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