How to Detect Audio Parameters (Sample Rate, Format, Channels) for Two-Way Audio?

Answered

Nguyen Chi Thien

December 20, 2024 05:07

Hello, I am following the instructions to enable two-way audio communication with the camera: https://support.networkoptix.com/hc/en-us/articles/4410048890135-How-to-Use-2-Way-Audio 

Basic format for a request from browser to camera:

ws://<server_ip>:<server_port>/api/http_audio?camera_Id=<id>&format=<audio_sample_format>&sample_rate=<audio_sample_rate>&channels=<audio_channels_count>

I am trying to determine how to retrieve the supported audio parameters (audio sample rate, audio sample format, and audio channels count) from the camera.

Is there a specific method or API available to fetch the audio sample rate, audio format, and channel count supported by different cameras?

 

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• 

  Norman

  • Network Optix team

  April 17, 2025 11:30 Edited

  Hi Nguyen Chi Thien,

  Most Audio settings are made in the device itself, like the codec, sample rate, and sample format. 

  To fetch the applicable data, you can use a GET rest/v3/devices/ request for all devices, or GET /rest/v3/devices/{id} for a specific device. 

  The output will look like this: LINK to PrivateBin

  Here you'll find parameters like: 

  "isAudioEnabled": true,
  "audioCodec": "PCM",
  "twoWayAudioEnabled": true,

  These can be adjust from true to false or v.v.
  The audioCodec is just informational, and cannot be changed through the Mediaserver API, and has to be changed on the device itself. 

  With kind regards. 

   

   

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