CNB BDS4812 (discontinued) - Manual (Page 22)

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BDx-Series Installation
2.2.6 Selection of audio input
a) Soundcard user
<Choose between ‘line-In’ and ‘Microphone’ for the audio source>
▪ Microphone user (1CH audio)
We recommend you to choose a microphone that have amplifier. Because few sound cards
have audio amplifier with a built-in their own board.
Run the DVR software and go to Setup -> Audio Tab . Select ‘Use Sound card Device’.
<Select Microphone> <Select a camera number>
In this case, camera1 image is recorded together with the audio inputted to channel1 of
sound devices.
▪ Line-In user (2CH audio)
Left channel of stereo line-in is Audio1 and Right channel is Audio2.
Run the DVR software and go to Setup -> Audio Tab . Select ‘Use Sound card Device’.
<Select Line-In> <Select a camera number>
In this case, camera1 image is recorded together with the audio inputted to channel1 of
sound devices. camera2 image is recorded together with the audio inputted to channel2 of
sound devices.