Description

Select NVRs/DVRs have a two-way audio function that is used between an NVR and a client/Web page. It doesn’t support two-way audio access to an IP camera directly.

NOTE: Camera must have a microphone and speaker and support two-way communication.
Two-way audio of any device supports one active connection only.

If you have a two-way audio connection to the NVR/DVR or the IP camera on the NVR/DVR, the system will return a "failed to initiate 2 way audio” error message if trying to initiate another two-way audio connection to the device from other software or via Web access.

Required Equipment

Compatible NVR/DVR, network switch, computer, stereo 3.5 mm (female) to 2 RCA plugs (male) cable, earphone/integrated microphone with 3.5 mm plug.

NOTE: The methods below are based on a stereo cable divided into two RCA plugs with a 3.5 mm jack and an earphone/integrated microphone with a 3.5 mm plug. The cable for your situation may differ, depending on your earphone plug.

How To Connect the Audio Line

1. Insert the red RCA plug into the NVR/DVR AUDIO IN port, and insert the white RCA plug into the NVR/DVR AUDIO OUT port.
2. Insert the 3.5 mm earphone plug into the cable’s 3.5 mm female jack.

How To Start Two-Way-Audio in the Web Page

1. Log in to the NVR Web page, and stay in the Live view interface.
2. Choose the two-way audio channel in the Web page.
   NOTE: Some NVR series have more than one two-way audio channel.
   Two-way audio channels refer to audio output ports. For example, a DS-9632NI-I16 has two audio output ports (AUDIO OUT 1, AUDIO OUT 2). These two ports are linked with two-way audio channels 1 and 2 separately. Users can set the port that outputs the two-way audio. So, in the NVR Web page, there are two two-way audio channels of choice.
3. The HDMI port can transmit an audio signal and work as an independent two-way audio port in NVRs/DVRs that support HDMI/VGA asynchronous output. However, the VGA port can’t transmit an audio signal, so it has to be linked with one audio out port.
   

   

How To Start Two-Way Audio in the Guarding Vision Client

1. Add the NVR/DVR to the Guarding Vision, and make sure the NVR/DVR is online.
   
   
   
   
2. Switch to the Main View interface, and live view one of the channels.
3. Select any channel, and click the right mouse button.
4. Click start two-way audio, and there will be two options, Camera1 and Camera 2. It means the NVR/DVR has two two-way audio channels, channel1 and channel2. Select one to start the two-way audio.
   
   
   

How To Start IP Two-Way Audio in the Guarding Vision Client

1. Add the NVR/DVR to the Guarding Vision, and make sure the NVR/DVR is online.
2. Switch to the Main View interface, and live view one of the channels.
3. Right click the channel for two-way audio, select Start IP Two-way Audio.
   
   

   NOTE: IP Two-Way Audio: The NVR/DVR transmits a two-way audio signal between the IP camera and the client. Add the NVR/DVR to Guarding Vision, and start two-way audio with the IP camera connected to the NVR/DVR.
   

   This option requires the NVR/DVR added as IP/Domain.

    

How To Start Two-Way Audio in the Annke Vision App

1. Add the NVR/DVR to Annke Vision, and live view one NVR/DVR channel.
2. Click the “loudspeaker” icon.
   

   NOTE: The NVR/DVR supports two-way audio to the IP camera when the NVR/DVR is added as IP/Domain in the Annke Vision app.