installation & connection
26_
installation & connection
Connecting to Audio Input/Output
Network
PC
Microphone
Speaker
Microphone
Speaker
1.
Connect the MIC port of the camera with the microphone or LINE OUT port of the amplifier that the
microphone is connected to.
2.
Connect the SPEAKER port of the camera with the speaker or LINE IN port of the amplifier that the
speaker is connected to.
3.
Check the specifications for audio input.
~
Audio Codec
- Audio In : G.711 PCM (Bit Rate: 64kbps / Sampling Frequency: 8kHz), G.726 ADPCM (Bit Rate:
16Kbps, 24Kbps, 32Kbps, 40Kbps / Sampling Frequency: 8kHz), AAC (Bit Rate: 48Kbps / Sampling
Frequency: 16kHz)
~
Full duplex Audio
~
Audio in
: Selectable (microphone/Line-in), Supported voltage: 2.5VDC (4mA), Input impedance: 25kΩ
~
Audio out
: Line-out (3.5mm mono jack), Maximum output: 0.5Vrms, Line out impedance : 600Ω
J
`
In the case you access the web viewer and select an external microphone as the audio input sources in <
Video & Audio
> -
<
Audio setup
>, the following specifications are recommended:
-
Frequency range: 40-16,000 Hz
-
Impedance: 1,500 Ω
-
Sensitivity: -40±3 dB (7.1-14.1 mV)
`
The audio/alarm cables for QNV-C9083R/QNV-C8083R need to be purchased separately.
