Creative Guidelines
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      Streaming Audio Creative Guidelines

      The following specifications will enable you to serve ads across most inventory sources but may vary by publisher and SSP.

      Length

      15-second or 30-second creative lengths

      (60 seconds also available but not recommended)
      File format MP3, M4A, WAV
      Bitrate 160KBPS
      Companion banner file format JPEG, PNG

      Companion banner ad size

      		 300x250 pixels
      Companion banner maximum file size 150kb