Knowledge Article

Overview

Audio advertising delivers sound-based ad creatives across music streaming, podcast, and digital radio platforms. Ads run programmatically via Open RTB and private marketplace deals, or directly through platform-specific buying tools such as Spotify Ads Manager. Audio ads are accompanied by a static companion banner image displayed during playback. Specifications vary by platform and buying method.

General: Open RTB & PMPs

Example format mobile ad: 1:1 · 640×640 static image

🎵 Now Playing

● Ad

Your Audio Ad

0:11

0:30

⏮

▶

⏭

Companion banner: 300×250

✚ Audio specifications

Spec	Details
Format	MP3, WMA, OGG
Duration	15s, 30s, 90s. 15s and 30s recommended
File Size	150 MB max
Bit Rate	160 kbps. Hosted MP3 files must have a constant bitrate.
Tracking Tags	1×1 pixels and click trackers accepted
Companion Banner	Optional. Static image only. Dimensions: 300×250 (recommended), 728×90, 320×50 (mobile apps only). File type: GIF, JPEG, PNG, HTML, Rich Media.
Companion Tracking	1×1 pixels
SSL	All tags, pixels, and libraries must be secure (https) or protocol agnostic.

Spotify

Example format desktop ad: 6:5 · 300×250 static image

🔒 open.spotify.com

♪

🏠

🔍

📚

Your Library

Top Hits 2024

Chill Vibes

Workout Mix

Summer BBQ

Sponsored

Your Brand

Learn More

640×640

Your Audio Ad — Sponsored

🔊

0:140:30

⏮

▶

⏭

✚ Spotify audio specifications

Spec	Details
Format	MP3, OGG, WAV. Programmatic requires .OGG format.
Advertiser Name	25 characters max
Duration	30s or less (max 65 words). Long-form up to 60s available in select markets for Direct IO & Programmatic Guaranteed (max 100 words).
File Size	50 MB max for Ads Manager, Direct IO, and programmatic/PMP
Bit Rate	192 kbps. Sample rate 44.1 kHz. Loudness: −16 LUFS (±1.5 LUFS). True peak: ≤ −2.0 dB.
Tracking Tags	1×1 pixels and click trackers accepted. VAST 2.0 accepted. All VAST elements must use https. No JavaScript, VPAID, or survey/DMP pixels.
Companion Banner	Static image only. Aspect ratio 1×1. Dimensions: 640×640. File type: JPEG, PNG.
Tagline	40 characters max
Call to Action	Required. Choose from: Apply now, Book now, Buy now, Buy tickets, Click now, Download, Find stores, Get coupon, Get info, Learn more, Listen now, More info, Pre-save, Save now, Share, Shop now, Sign up, Visit profile, Visit site, Watch now.
Companion Tracking	1×1 click tracker
Click-through URL	Required. One destination URL only.

⚠ Notes

Spotify specs above apply to audio creatives running directly on the Spotify platform.
All tags, pixels, and libraries must be secure (https) or protocol agnostic. Failure to provide secure tags may result in delivery issues.
For more details on Spotify specs, visit the Spotify Ads page.

FAQs

Which audio format does Spotify require for programmatic campaigns?

Spotify programmatic campaigns require the OGG audio format.

Can marketers use animated companion banners for Spotify audio ads?

No. Spotify supports static companion banner images only.

Why are audio ads not delivering?

Audio ads may fail to deliver if tracking tags, pixels, libraries, or VAST elements do not use HTTPS.

Display ad specifications

HTML5

Audio ad specifications