Audio Settings - Axis P1346 User Manual

Audio Settings

This section describes how to configure the basic audio settings for the network camera. These settings apply to all video
streams, whereas audio functionality can be enabled or disabled in each view area and stream profile.
Audio Channels
Audio mode - The available audio modes are
Full duplex. Simultaneous two-way audio allowing you to transmit and receive audio (talk and listen) at the same
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time.
Note: There is no echo cancellation; if there is echo, try moving the microphone or the speaker.
Half duplex. Audio is transmitted in both directions between the network camera and the client compute, but only in
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one direction at a time. You must actively transmit/receive sound using the Talk/Listen button available on the Live
View page (see AXIS Media Control toolbar, on page 11). In Push-To-Talk mode, click and hold the button to speak and
release it when done. In Toggle mode, click once to switch between speaking and listening.
Note: The Talk/Listen button mode is configured from the Audio tab in the AMC control panel (see AXIS Media Con-
trol (AMC), on page 14).
Simplex - Network Camera speaker only. Audio is transmitted from the client to AXIS P1346/-E/AXIS P1347 and
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played by the speaker connected to the camera. To send audio, the Talk and Microphone buttons in the AMC toolbar
must both be enabled. Click either button to stop audio transmission.
Simplex - Network Camera microphone only. Audio captured by the microphone connected to the network camera is
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transmitted from the camera to one or more clients.
Audio Input
An external microphone or a line source can be connected to the Audio in connector. If an external microphone or line source
has been connected, the internal microphone is automatically disconnected. The audio source must be set to Microphone or
Line depending on the connected device.
Notes:
• To prevent unauthorized listening, disable the internal microphone by inserting a plug in the Audio in connector.
• The internal microphone on AXIS P1346-E cannot be used.
The Enable microphone power option provides DC power for an external microphone. If using a small electret condenser
microphone such as a clip-on microphone or a PC microphone, enable this option.
Note:
To use a high impedance dynamic microphone, do not enable microphone power. Microphone power will not harm the
microphone; if you are uncertain, try switching it off and on. To use a professional microphone requiring 48V phantom
power, you need an external power supply and a balanced-unbalanced converter (audio transformer) in between.
If the sound input is too low or too high, adjust the input gain for the microphone attached to the network camera.
Select the desired audio Encoding format, G711 μ-law, G726 or AAC.
Select the required Sample rate (number of times per second the sound is sampled). The higher the sample rate, the better the
audio quality and the greater the bandwidth required.
Changing the Bit rate changes the audio compression level and hence audio quality. A higher bit rate can improve audio
quality but requires more bandwidth.
The network camera can be configured to trigger an event if the incoming sound level rises above, falls below, or passes the
set Alarm level.
Audio Output
If the sound from the speaker is too low or too high, adjust the output gain for the active speaker attached to the network
camera.
When satisfied with the settings, click Save, or click Reset to revert to previously saved settings.
AXIS P1346/-E/AXIS P1347 - Video & Audio
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