AXIS 241QA/AXIS 241SA - Audio 25

If t the sound input is too low or high, it is possible to adjust the input gain for the microphone attached to the AXIS 241QA/AXIS 241SA.

Select the desired audio Encoding format, G711, G726.

Depending on the selected encoding, set the desired Bit rate (audio quality). The settings depend on the available bandwidth and the required audio quality, that is, a high bit rate setting requires more bandwidth.

Audio Output

If the sound from the speaker is too low or high it is possible to adjust the output gain for the active speaker attached to the AXIS 241QA/AXIS 241SA.

When satisfied with the settings, click Save, or click Reset to revert to the previously saved settings.

Advanced Audio Settings

The Audio Quality Settings allow you to tune the audio input to suit your environment.

Enable speech filter improves the sound quality if using a microphone that 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 points).

Enable echo cancellation can reduce the feedback generated when using full duplex. If there is sound distortion, turning echo cancellation off may improve the sound quality.

Noise cancelling is a way of reducing the background noise when there is no useful audio present. A typical application could be when there is a noisy environment and you are only interested in hearing the sound when someone is speaking close to a microphone. There are two adjustable parameters available to optimize this function:

Noise canceller threshold value

Noise canceller attenuation

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Axis Communications AXIS 241SA user manual Audio Output, Advanced Audio Settings