Microsoft Invest - Audio creative guidelines and specifications

To serve on the Microsoft Advertising platform and other third-party platforms, all audio creatives must adhere to the guidelines and specifications listed here, our creative standards, and any other guidelines that may apply.

Adhere to these guidelines and specifications when creating audio creatives:

  • The file size limit is 1 GB for hosted audio creatives.
  • The audio creative must be created using one of the following file types: 3G2 (3GPP2), 3GP (3GPP), Advanced Audio Coding (AAC), Advanced Systems Format (ASF), Audio Video Interactive (AVI), F4A, F4B, F4P, F4V, FLV, M2V, M4P, M4V, MKV, MOV, MPE, MPEG, MPEG-2 (MP2), MPEG-3 (MP3), MPEG-4 (MP4), MPG, MPV, OGG, OGV, QuickTime (QT), RM SWF, VOB, WAV, WebM, and Windows Media Video (WMV).

If your audio creative will serve on Pandora / AdsWizz, Spotify, and Triton inventory, it must adhere to the following format requirements provided by the seller:

Inventory Format Requirement
Triton - File type: MP3
- Bit rate: 128 kbps
- Ad length: 15, 30, or 60 seconds
  - Trimmed of slate/silence
- Sample rate: 44100 Hz
- Volume: Normalized to -4db
Pandora / AdsWizz - File type: MP3, AAC, or WAV
- File size: Maximum 20MB
- Bit rate: Minimum 128 kbps, 196kbs recommended
- Ad length: 15, 30, or 60 seconds
Spotify - File type: MP3, WAV, or OGG
- Companion Banner : 640x640 or 300x250
- Bit rate: Minimum 128 kbps
- Ad length: 15 or 30 seconds