GetAudioStreamConfig

Retrieves audio stream configuration including encoding, input source, and volume levels.

Endpoint

Field	Value
Method	POST or GET
URL	http://<host>[:port]/GetAudioStreamConfig[/channelId]
Products	IPC, NVR
Channel ID	Optional (default 1)

v2.0 Only

This command does not exist on v1.9 firmware.

Response Fields

Field	Type	Description
audioInSwitch	boolean	Audio input enabled/disabled
audioEncode	audioEncodeE	Audio encoding format
audioInput	audioInputE	Audio input source type
linInVolume	uint32	Line-in volume (0--100)
micInVolume	uint32	Microphone volume (0--100)
audioOutVolume	uint32	Audio output volume (0--100)
audioOutput	audioOutputE	Audio output mode

Audio Encode Types

Type	Description
G711A	G.711 A-law (8kHz, 64kbps)
G711U	G.711 mu-law (8kHz, 64kbps)

Audio Input Types

Type	Description
MIC	Microphone input
LIN	Line-in input

Audio Output Types

Type	Description
TALKBACK	Two-way audio talkback
ALARM_AUDIO	Alarm audio output
AUTO	Automatic selection

Response

<?xml version="1.0" encoding="UTF-8"?>
<config version="2.0.0" xmlns="http://www.ipc.com/ver10">
  <types>
    <audioEncodeE>
      <enum>G711A</enum>
      <enum>G711U</enum>
    </audioEncodeE>
    <audioInputE>
      <enum>MIC</enum>
      <enum>LIN</enum>
    </audioInputE>
    <audioOutputE>
      <enum>TALKBACK</enum>
      <enum>ALARM_AUDIO</enum>
      <enum>AUTO</enum>
    </audioOutputE>
  </types>
  <audioInSwitch type="boolean">true</audioInSwitch>
  <audioEncode type="audioEncodeE">G711U</audioEncode>
  <audioInput type="audioInputE">MIC</audioInput>
  <volume>
    <linInVolume type="uint32" min="0" max="100">75</linInVolume>
    <micInVolume type="uint32" min="0" max="100">75</micInVolume>
    <audioOutVolume type="uint32" min="0" max="100">75</audioOutVolume>
  </volume>
  <audioOutput type="audioOutputE">ALARM_AUDIO</audioOutput>
</config>

Notes

• Check audioInCount and audioOutCount from GetDeviceInfo to confirm audio hardware availability before using this endpoint.
• Volume levels for all three channels (line-in, microphone, output) are independently configurable from 0 to 100.