Axis Communications 216FD user manual Audio Channels, Audio Input, Audio mode

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22AXIS 216FD - Audio

Audio Channels

Audio mode

Half-duplexmode transmits and receives audio in both directions, but only in one direction at a time. This means that you must select when to receive or transmit audio with the push-to-talk button. To speak, press and hold the button (check that the microphone is not muted). When finished speaking, release the button and you will receive audio from the other end of the connection.

Note that the push-to-talk button is configured from AMC, see AXIS Media Control, on page 17. It is also possible to configure the push-to-talk button so that it toggles between speaking and listening modes.

When selecting Simplex - Network Camera speaker only mode, the speaker connected to the camera will play audio, but no audio will be transmitted from the camera to other web clients. This could be used to e.g. provide spoken instructions to a person seen in the camera. This mode requires you to use the push-to-talk button.

Simplex - Network Camera microphone only mode transmits audio only from the AXIS 216FD to web clients. It will not receive audio from any other web clients. This can be used in remote monitoring, web attractions etc., to provide live audio, as well as video, of a monitored situation.

When using half-duplex, the Send the sound from the active client to all other clients option transmits the audio signal from the client that is talking to all the other clients.

Audio Input

Audio from an external microphone or a line source can be connected to the Audio in connector of the AXIS 216FD. The audio source must be set to Microphone or Line depending on the connected device.

Note: To prevent unauthorized listening, the internal microphone can be disabled by inserting a plug in the Audio in connector.

The Enable microphone power option provides DC power for an external microphone. If using a small electret condenser microphone such as a clip-on mic or a PC microphone, this option needs to be enabled.

Note: To use a high impedance dynamic microphone, DC power should not be enabled. DC power will not harm the microphone, but if you are uncertain, try switching it off and on. The default value is DC power enabled. To use a professional microphone requiring 48V phantom power, you need an external power supply and must use a balanced-unbalanced converter (audio transformer) in between.

If there are problems with the sound input being too low or high, adjust the input gain for the microphone attached to the AXIS 216FD.

Select the desired audio Encoding format, AAC, G711, G726.

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Contents Axis 216FD Fixed Dome Network Camera User’s Manual About this Document Support Contents Axis 216FD Product Features Key featuresOverview With a maximum load of 50mA and a maximum voltage Terminal connectorLED indicators DC, this output has an open-collector NPN transistor withAccessing the Camera Access from a browserSetting the Password Accessing the camera from the InternetAdjusting the image AdjustmentLive View AMC audio controls How to stream MPEG-4 Video StreamsAxis Media Control AMC MPEG-4 clientsMotion Jpeg QuickTime & Real PlayerAlternative methods of accessing the video stream Accessing the Setup tools ConfigurationAxis Media Control Video and Image settings Image AppearanceVideo Stream Text Overlay SettingsAdvanced Camera Settings Overlay/MaskLow Light Behavior Advanced MPEG-4 Settings GOV SettingsBit Rate Control Audio Audio SettingsEnable Audio MicrophoneAudio Channels Audio modeAudio Input Audio Output Live View Config LayoutUpload Own Web Files Customizing the defaultOwn Home Action Buttons Default Video FormatDefault Viewer Output ButtonsHtml Examples Sequence ModeAMC Settings External VideoEvent Servers Event ConfigurationDefinitions Triggered Event Configuring Event TypesHow to set up a triggered event Click Add triggered on the Event typesPre-trigger and Post-trigger buffers Scheduled EventMotion Detection Port Status Object SizeIP Address Filtering System OptionsSecurity ReferralsDate & Time HttpsIP Address Configuration Network Basic TCP/IP SettingsNetwork Advanced TCP/IP Settings ServicesLink-Local Address NTP ConfigurationHost Name Configuration NAT traversal port mappingWAN internet UPnP Smtp emailNetwork Traffic Maintenance LED SettingsPorts & Devices Configuration SupportUsing the Control Button Resetting to the Factory Default SettingsAdvanced Terminal connector I/O Terminal ConnectorPinout and Interface Terminal Connectors Checking the Firmware TroubleshootingBasic Configuration Upgrading the FirmwareEmergency Recovery Procedure Axis SupportCamera is accessible locally, but not externally BrowserDecode only I frames Power indicator is not constantly litCamera is inaccessible Are flashing red rapidlyIs enabled under System Options Date & Time Problems uploading filesAudio volume too low/high No audioTechnical Specifications LensClock General performance considerations ApprovalsOptimizing your system Frame rates Motion Jpeg and MPEG-4 BandwidthGlossary of Terms Compression See Image CompressionAllowed to enter Half-duplex See Full-duplexVOP See VOP Megapixel See PixelAxis 216FD Glossary of Terms SSL/TSL Secure Socket Layer/Transport Layer Security URL Uniform Resource Locator An address on the network Index AMCSnmp Axis 216FD Index
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