Use the Manage Audio Messages dialog to edit the camera's voice messages.
The camera can record, play and manage voice messages. To record voice messages, you can either use your telephone or the camera's integrated microphone.
In order to record a voice message using the camera's internal microphone, you must have activated the microphone in the Speaker and Microphone dialog. The factory default setting for the microphone is deactivated.
Alternatively, you can transfer one or more messages recorded by another camera as an audio file via your computer to this camera.
Select the Connection Type that should be used for all numbers in this profile (SIP). If you would like to use VoIP for this purpose, activate SIP telephony in the VoIP Settings dialog and enter the appropriate settings (open the VoIP Settings help page to get more information about this topic).
Enter the phone number or SIP address for the camera to dial.
Select the maximum message duration in seconds.
Value range: 2..20s.
Click on the Call & Record button.
The camera calls the telephone number or SIP address you entered so that you can record the voice message. Hang up the phone to stop the recording.
Select the maximum message duration in seconds.
Value range: 2..20s.
Click on the Record button.
To record a voice message, start recording the message using the camera microphone as soon as all LEDs are lighting up. The camera automatically stops the recording after the specified time.
Note that LED signaling will only work if the LED main switch in the LED Setup dialog has been set to Default Configuration or Custom Configuration.
Testing the voice message:
Click on the Play button in order to play back the voice message using the camera's speaker. For doing so, the speaker needs to be activated in the Speaker and Microphone dialog.
If you click on the Call & Play button, the camera calls the number and plays back the voice message over the telephone.
Once you are satisfied with the voice message, enter a name and save the recording by clicking on the Store button.
If you do not want to store the voice message, click on the Cancel button.
Launch an application for recording audio files on your computer (e.g. Windows: Audiorecorder, Audacity, Wavesurfer; Linux: Audacity, KRecord).
Record an audio file or open an existing audio file.
The length of the recording should not exceed 20 seconds.
Save the file as CCITT A-law with 8 kHz; 8 Bit sampling rate; Mono.
Make sure that the finished file is not larger than the free space on the camera (see Stored Voice Messages > Free).
This section is only available if you already have created and stored at least one voice message.
The name and size of the individual voice messages are displayed in the list. You can execute these actions on each voice message:
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Play |
The voice message is played back using the camera's speaker. |
|
Call & Play |
The camera calls the telephone number entered in Phone Number to Call and plays back the voice message. |
|
Deleting |
Removes the corresponding voice message. |
The last line of this section displays information on the amount of storage space that the voice messages are using.
This section is only available if you already have created and stored at least one voice message.
You can download one or several voice messages to archive them on your local computer. In order to select several files, keep the Ctrl key pressed and select the desired files with your mouse.
You can either keep such an archive for backup purposes or upload it to other cameras.
First, select the format of the file you would like to upload:
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TAR ( |
A compressed audio archive (Tape Archive) that can contain several packed .al files and that has been generated by a camera. You can use this format for backing up the files and for exchanging voice messages between cameras. |
|
Wave ( |
Use this format if you have recorded an audio file on a Windows computer by means of the |
|
A-Law ( |
A-law encoding is frequently used for digitally transferring analog signals. This encoding system needs very few digitizing levels for improving the quality of voice transfer. The camera expects an A-law file with the following specifications: 8 kHz, mono, 8 bit sampling rate. |
|
Opus ( |
Opus encoding is a file format for lossy compression of audio data with the lowest possible latency. This format is ideally suited for real-time applications on the Internet and covers the entire hearing range of the human being. The camera expects an opus audio file with one channel (mono) and a frequency range of 16 kHz. |
Click on the Browse button to select the file on your computer.
To start the transfer, click on Upload.
Use the Sound Recorder on Windows systems if you would like to convert audio files in WAV format to other formats. The WAV files on Windows systems
usually are PCM format with 44,100 Hz, 16 Bit, Mono. You will have to convert these files to one of the formats listed above (WAV, A-law or Opus) before you can use them in the camera.
On Linux systems, for example, you can use the sox program for converting audio files into one of the compatible formats (WAV, A-law or Opus) listed above.