How do I turn on the audio settings for a DX8100 Digital Video Recording System?
Pelco Video Management
- DX8100 Audio
Enable audio for live audio recording and play back audio.
To enable DX8100 audio there are two option Line in audio (Standard audio) or Expanded audio (Using the 16ch input cable). The DX8100 accepts up to 32 individual monaural audio inputs. Each input is designed to receive a line-level, analog audio signal that is sampled at a rate of 48 kHz (16 bits) by the DX8108-AUD’s digital analog converters (DAC). To minimize the amount of storage required to store audio data, the audio stream is down-sampled to 8 kHz (8 bits) for storage and playback. The DX8108-AUD/DX8116-AUD option accepts an unbalanced, line-level audio signal only. Line-level signaling requires a voltage between -1 V and +1 V into an impedance of 1 k or more. This means that the output of most microphones will be too low to function when connected directly to the DX8100’s audio inputs. In most applications, a preamplifier such as the Louroe Electronics ASK-4® KIT #101 will be required to boost the signal of a microphone to a level that is acceptable for input into the DX8100.
The DX8100 server supports two audio configurations: standard audio and optional expanded audio. Both of these configurations allow you to configure individual camera channels to listen to and record live audio. You can monitor live audio at a local server or listen to live audio from a remote DX8100 server or client system. You can play back audio recorded by a camera channel.
Note: Audio and video inputs are configured in a one-to-one relationship. For example, audio input seven corresponds to video channel seven.
Note: Live audio is not supported for IP cameras.
Audio status is one of the following:
– Not installed: If the optional audio card is not installed, the Advanced button in the Audio Settings area is available.
– Installed (enabled): If the optional audio card is installed, the Advanced button in the Audio Settings area is not available. The disable check box is available to be checked.
The DX8100 compresses audio data to save space. In this case, recorded audio that may not be of the same quality as live audio. Consult your Pelco sales representative for more information regarding the DX8100-AUD option.
Setting Up the Standard Audio Options
The DX8100 provides two standard audio inputs: Line In (stereo), Mic In (mono), and one audio output. The standard audio inputs are available by default if the optional audio option card is not installed. If the optional audio card is installed, the standard audio inputs are disabled. Use an audio cable with a 0.125-inch miniature male phone plug on one end to connect to the audio output of the DX8100. Ensure that the opposite end of the cable has the appropriate connectors for connection to your amplifier.
– Line In (stereo): A 2-channel stereo input (left and right channel) allows you to connect up to two external audio sources. You can assign a specific camera to record video in association with each audio channel. For example, you can assign camera 2 to the left audio channel and camera 32 to the right audio channel.
– Mic In: Accepts one audio input. You can assign one camera to record video in association with the audio input.
– Audio output: Allows you to connect an audio output device, such as an amplifier, to listen to recorded video and audio simultaneously.
To set up the standard audio options:
1. Connect the audio input source to the DX8100. For information about connecting an audio source to the DX8100, refer to the DX8100 Installation manual.
2. On the DX8100 toolbar, click the Setup button . The Setup dialog opens to the Camera page.
3. In the Channel Information area, verify that expanded audio option is not installed. This is indicated by the label Audio: Not Installed.
4. In the Audio Settings area, click Advanced >>. The AUX Audio Settings dialog box opens.
5. In the AUX Audio Settings dialog box, do the following:
a. Click to deselect the Audio Disable check box.
b. In the Input Device drop-down box, select Mic (single channel only) or “Line in” (two standard channels).
c. Click the Left Channel check box and in the drop-down box, select an associated camera.
d. Click the Right Channel check box and in the drop-down box, select an associated camera.
e. (Optional) Left-click the Aux volume control and drag left to decrease the audio input level or to the right to increase the audio input level.
f. Click OK.
g. Click Apply.
Setting Up the Expanded Audio Options
To set up the expanded audio option:
1. Do the following:
a. Install the optional DX8108-AUD/DX8116-AUD audio card (if necessary). For information about installing the optional DX8108-AUD/DX8116-AUD audio card, refer to the DX8100 8/16 Channel Audio Card Installation manual.
b. Connect an audio input device (microphone) to the numbered DX8108-AUD/DX8116-AUD audio card input for the camera channel being configured for live audio recording.
c. To hear live audio at the local server, connect head phones to the DX8100 audio output connector.
2. On the DX8100 toolbar, click the Setup button . The Setup dialog box opens to the Camera page.
3. Check the Channel Information section to verify that the audio option is installed and available.
4. In the Camera Properties section, select the camera channel you want to configure for live audio recording.
5. In the Audio Settings section, verify that the Audio Disable check box is not selected.
6. Click Apply.
7. Verify that you can hear sound from the DX8100 audio output.