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DETEXI® Network Video Management System
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  • Audio
  • Enable Camera Sound
  • Alarm Voice Setup
  • Alarm Server Service
— Administration and Management — Audio —
Audio
In an analog system, separate audio and video cables must be installed from endpoint to endpoint. In a network video system, a network camera with audio support processes the audio and sends both the audio and video over the same network cable for monitoring and recording.
Many network camera manufacturers are recognizing the importance of audio, and audio is becoming a common feature in network cameras. Some video encoders also have built-in support for audio, which means that they can provide audio functionality in an analog camera installation.
Having audio as an integrated part of the DETEXI NVR is an invaluable addition to a system’s ability to detect and interpret events and emergency situations. The NVR supports three basic modes of audio communication: simplex, half duplex and full duplex — depending on the application, it can be configured to send audio in only one direction or both directions, which can be done either simultaneously or in one direction at a time.
The DETEXI NVR also provides alarm management — the software can sound an alarm, display pop up windows with alarm video/audio stream, send e-mails, call a phone and play alarm-specific WAV file or text-to-speech message.
  • Full duplex mode enables users to send and receive audio (talk and listen similar to a telephone conversation) at the same time. Full duplex requires that the client PC has a sound card with support for full-duplex audio.
— Audio — Enable Camera Sound —
Audio
Enable Camera Sound
Depending on the application, the NVR can be configured to send audio in only one direction or both directions, which can be done either simultaneously or in one direction at a time (simplex, half duplex and full duplex modes).
  • Be sure that the NVR audio settings make sense considering the camera audio capabilities and settings.
  • Enable Camera Sound
  • Configure User Permission
  • Camera (with audio) Live View
  • Live View (half duplex)
  1. In the NVR Control Center — Cameras select a camera with audio support from the Cameras List.
  2. In the Camera Settings check Sound checkbox.
  3. Under the Audio(R/T) check R checkbox to receive audio from the camera and/or check T checkbox to transmit audio from the operator to the camera.
The next step is to define which audio communication mode is permitted to the user.
  1. In the NVR Control Center — Users select a user from the Users List.
  2. In the User Information select a camera from the user cameras to interact list at the right.
  3. Under the Sound select an audio communication mode by checking proper checkboxes —
  • Receive checkbox checked — audio will be sent in one direction only by the camera to the operator (simplex mode)
  • Transmit checkbox checked — audio will be sent in one direction only by the operator to the camera (simplex mode)
  • Receive and Transmit checkboxes checked — audio will be sent to and from the operator simultaneously, similar to a telephone conversation (full duplex mode)
  • Receive, Transmit and Half duplex checkboxes checked — audio will be sent in both directions, but only one party at a time can send, similar to a walkie-talkie (half duplex mode)
  • If the checkboxes are not visible — sound was not enabled for the camera.
  • If you intend running the audio module in full duplex mode, check that the sound card on your computer supports this.
Camera (with audio) Live View
When the camera (with audio) live view is launched on the Remote Client the camera starts to stream live video and audio over the Internet. Depending on audio settings one or two additional checkboxes will appear on the image top (except for half duplex mode).
  • Left checkbox checked enables receiving audio (unchecked disables receiving)
  • Right checkbox checked enables transmitting audio (unchecked disables transmitting)
  • The Sound button on the top allows to show/hide the checkboxes
Camera Live View (half duplex audio mode)
When using the half duplex audio mode camera will normally send audio to the operator. To transmit audio from the operator to the camera press and hold the Talk button (button state switches to the Talking).
— Audio — Alarm Voice Setup —
Audio
Alarm Voice Setup
As a part of alarm management system an audio alert can be activated — all available operators could be notified of the alarm by playing alarm-specific WAV files or text-to-speech messages.
When the video devices (cameras and/or video servers) are mostly defined in the NVR the default cameras alarm sound files should be generated. If more video devices than is added to the system new sound files will be generated automatically.
  • Cameras Alarm Sound Files
  • Voice Configuration
  • Assign Voice Message to Camera
To generate alarm sound files for the cameras, defined in the system —
  1. Go to the NVR Control Center — General — Voice Setup.
  2. Click on the Voice Setup button to launch the Alarm Server to configure voice type, speed and sound file format.
  3. Click the Record button to save voice settings and generate the default alarm sound files according to the settings.
  • Sound files will be generated according to the Camera’s alarm voice message template ; the template can be changed
  • The phone greeting message can be changed in the Type here new greeting message textbox
  • By pressing the Speak button, you can hear the greeting message
  1. In the Alarm Server Voice Configuration select Voice Type and Speed.
  2. By pressing the Test over speakers button, you can hear the test message.
  3. Select a Format for writing Wave files.
  4. If you want to change the default alarm message to your own, enter a new message in the Information for recording to file textbox and save the file. The message than can be assigned to any camera
The default alarm voice message is assigned to a camera automatically. In order to assign a specific message —
  1. In the NVR Control Center — Cameras select a camera from the Cameras List and switch to the Security & Alarm.
  2. Enter the Location to play message from, if provided (for advanced users).
  3. Check the Play Alarm checkbox to activate radio buttons below.
  4. Select the WAV file radio button to activate the file directory.
  5. Choose a sound file you want to play from the directory.
  • Or select the Message radio button and enter a message to be played.
— Audio — Alarm Server Service —
Audio
Alarm Server Service
The Alarm Server service is responsible for raising alarms via the text-to-speech engine, telephone, e-mail and other mediums. This NVR service should be running in order to send the following alert notifications —
  • Phone notification calls a user-defined phone or pager and plays alarm-specific or a user-defined WAV file or text-to-speech message. Has the ability to attempt multiple times on failure.
  • eMail notification sends an alarm-specific or user-defined email to one or more user-defined email addresses. Has the ability to attempt multiple times on failure.
  • Speak notification plays alarm-specific or a user-defined WAV file or text-to-speech message over the NVR Server soundcard.
  • Launch Alarm Server
  • Configure Voice
  • Configure Phone
  • Configure Mail
Launch Alarm Server Interface —
If the NVR is running the Alarm Server icon appears in the Windows taskbar tool tray. Double-click the icon to launch the Alarm Server interface. Switch to the Voice, Phone or Mail configuration.
Voice Configuration —
  1. In the Alarm Server — Voice Configuration select Voice Type and Speed.
  2. By pressing the Test over speakers button, you can hear the test message.
  3. Select a Format for writing Wave files.
  4. If you want to change the default alarm message to your own, enter a new message in the Information for recording to file textbox and save the file.
  • A specific alarm voice message than can be assigned to a selected camera in the NVR Control Center — Cameras —Security & Alarm (the default alarm message is assigned automatically)
Phone Configuration
  1. Append voice modem hardware.
  2. Select appropriate sound files and Waiting delay for answer.
Mail Configuration
You must correctly configure the Internet e-mail information service to send messages in the NVR. To do this, you must have the following specific information about your e-mail account and configure it in the Alarm Server —
  1. Enter the SMTP server name or address into the Server (SMTP).
  2. Select the Port number that is used for SMTP (most ISPs use port 25).
  3. Enter your full E-mail address.
  4. If the outgoing e-mail server (SMTP) requires authentication check the Server requires authentication checkbox and enter e-mail account and password.
  5. Under the Default values enter the Sender name and the Subject line info.