Playing back sound from Client microphone on camera speakers

General information

The Speaker object is used to configure audio notification that starts when a macro starts.

In Axxon One, you can create the following types of the Speaker objects:

  1. IP speaker device. It is created automatically if there is an audio outlet on an IP device.

    One audio outlet on an IP device corresponds to one Speaker child object of the Camera object.

  2. System speaker. It is created manually. Audio on the system speaker is played back using the server's sound card.

A Speaker object can play back audio notification files with the following extensions:

  1. .ac3;
  2. .amr;
  3. .avi;
  4. .aac;
  5. .aiff;
  6. .au;
  7. .adts;
  8. .caf;
  9. .dts;
  10. .flac;
  11. .gsm;
  12. .mkv;
  13. .mp3;
  14. .m4a;
  15. .m4r;
  16. .mp2;
  17. .oga;
  18. .ogg;
  19. .opus;
  20. .voc;
  21. .w64;
  22. .wav;
  23. .wma;
  24. .wv.

The following audio notification file encoding formats are supported:

  1. MPEG AAC Audio;
  2. MPEG-4 Video;
  3. MPEG Audio layer 1/2; 
  4. Vorbis Audio;
  5. Opus Audio;
  6. PCM S16 LE;
  7. PCM S16 BE; 
  8. twos; 
  9. FLAC (Free Lossless Audio Codec);
  10. AMR narrow band;
  11. DTS Audio;
  12. GSM Audio; 
  13. WavPack;
  14. A52 Audio (aka AC3);
  15. Yamaha ADPCM Audio;
  16. ADTS.

The audio notification file must be stored on the computer corresponding to the Server object on the basis of which the Speaker object is registered.

Creating and configuring the object

To create the Speaker system object, do the following:

  1. Go to the Devices tab.
  2. Click the Create... link in the object tree and select Speaker.
    ParameterValueDescription
    NameSpeakerEnter the required name
    Audio files

    This parameter is mandatory.

    Specify the path to the audio notification file in one of the following ways:

    • Select any already added file from the file collection:
    • Add a file using the file collection:
      1. Click the button.
      2. In the window that opens, click the Add button.

      3. In the File path field, specify the path to the audio file. As a result, the remaining fields will display the name of the selected audio file, size, and extension.
      4. Click the OK button.
    Playback modeDisabledFrom the drop-down list, select the speaker playback mode
    Play on server
    Play on client
    Volume100Enter the speaker volume level
  3. Configuration of a speaker of an IP device:
    ParameterValueDescription
    Other
    EnableYesBy default, the speaker of an IP device is disabled. To enable it, select Yes
    No
    NameSpeakerEnter the required name
    Audio codecg711_with_bitrate
    Audio files
    		Enter the full path to the audio notification file
    Bitrate64000
    Compression algorithmu-law
    Camera
    CameraIP serverFrom the drop-down list, select the camera with which you want to bind the speaker. As a result, the speaker becomes a child of the selected camera
  4. Click the Apply  button.

Configuration of the Speaker object is complete.

Checking the audio notification

To check the Speaker object, click the Test button.

As a result, the audio notification file is played back, the path to which you specified in the Audio files field (see Creating and configuring the object).