Soundframe

Soundframe is Waveband's audio-led video path: supply an audio spot and a companion still, and the platform renders a standard video creative you can attach to CTV and OLV line items. Classic audio creatives remain a separate type (when the seat enables them).

What you supply

Audio file URL (HTTPS), up to 90 seconds
Companion image URL (HTTPS)
Optional click-through URL and extra impression trackers

Create from the console under Creatives → Audio → Video, or via the API with type: "video" and a render object (empty assets).

What happens next

The creative starts in processing with a Soundframe render spec.
The worker downloads the inputs, renders H.264/AAC video (default 1920×1080), and stores the result.
Assets are filled and the normal video sync runs (VAST template, quartile events via Waveband Signal).

Status moves to ready when upstream sync completes, or rejected if render fails after retries (for example, audio longer than 90 seconds).

API shape

POST /api/v1/creatives
{
  "workspaceId": "<uuid>",
  "name": "Retail 30s",
  "type": "video",
  "assets": [],
  "render": {
    "kind": "audio_led_video",
    "audioSource": "https://cdn.example.com/spot.mp3",
    "imageSource": "https://cdn.example.com/still.jpg"
  }
}

Sound-on bias targeting

On video-channel line items, enable Bias to sound-on placements. That sets targeting.video.soundOnBias, which compiles to publisher-declared interstitial video environment keys. It is a bias, not a mute guarantee. CTV is structurally sound-on by environment.

Curated shelf and sound-on packages