Imp.audio

An Audio object, present when the impression is offered as audio, such as a streaming radio or podcast ad break. Added in OpenRTB 2.4.

CurrentobjectOptionalSince 2.4

Field facts

Path: imp.audio
Object: Imp
Type: object
Requirement: Optional
Added: OpenRTB 2.4
Spec section: 3.2.4

How it is used

Audio mirrors Video for durations, protocols, pods, and companion banners, and adds audio-only fields such as feed type, stitching, and volume normalization.

Example

Where the field sits in a payload, with everything else left out:

{
  "id": "req-1",
  "imp": [
    {
      "audio": {
        "mimes": [
          "audio/mp4",
          "audio/mpeg"
        ],
        "minduration": 15,
        "maxduration": 30
      }
    }
  ]
}

Common mistakes

Sending audio on a request declared as 2.3 or earlier, where the field does not exist yet. The validator reports openrtb.field.not_yet_available.

Version history

Added in OpenRTB 2.4, and present in the latest snapshot. The table shows how each version's spec text types the field.

Versions	Type in the spec	Required	Deprecated
2.4	object	No	No
2.5 to 2.6-202606	object	No	No

Versioned rules that name this field

openrtb.2.4.imp.audio OpenRTB 2.4 introduced the Audio object for audio inventory.

Related fields

Other Imp fields

For a walkthrough of the whole object, read Bid request anatomy.