IPad Best Practices for Audio and Video
Audio:
- Must be MP3 files
- Simulate a Controller Skin - simple graphic to toggle between play and pause
- The Play, Pause, and Stop options are supported.
- Resume and Stop All are not supported.
- More advanced - graphics that displays audio progression
- Best to use vector graphics so they can be resized

Audio Controller Images File Format
• audioasset_001pause.png
• audioasset_001play.png

Audio Option Panel
- Show First Image Initially (InDesign CS5.5/CS6 only)
If this option is selected, the audio frame displays the first _play.png file in the specified audio controller assets folder, and the frame resizes appropriately. In InDesign CS5, specify the poster image, and then manually resize the frame and the poster image.

- Auto Play
Select this option to play the audio or video file when the page is loaded on the mobile device. You can also specify the number of seconds to delay. Auto Play is not supported for Android viewers.

- Play In Background Across Folio
Select this option to play the audio file in the background while users browse through articles. Users can pause or resume the audio clip by tapping the audio icon in the top navigation bar.

- Play Full Screen
If this option is selected, the video plays in full-screen mode. If this option is not selected, the video plays within its bounding area. Note that all videos on Android devices play full screen.

- Tap To View Controller (iOS only)
If this option is selected, tapping the inline video while it’s playing displays a controller bar with pause and play controls. If this option is not selected, tapping the video pauses and restarts.

- Do Not Allow Pause (iOS only)
If you select this option, users cannot tap the video to pause or stop it. This option is available only if Auto Play is selected and Play Full Screen is not selected.

- Stop on Last Frame (iOS only)
Select this option to display the final video image when the inline video stops playing. This option is available only if Play Full Screen is not selected.

When the user initiates the audio, it is played immediately while allowing the user to continue to read the content in the current article. Navigating to another article stops and resets the audio. However, turning the page does not stop the audio.

Video:
- Can play inline or full screen
- Dimensions: Inline - 400px X 300px or 640x320px
- Dimensions Full-screen:
..... iPad 1 and 2 - 1024 px wide
..... iPad 3 HD - Max video size is 1920 X 1080px
This will increase folio size. Can reduce video size using Adobe Media Encoder or a third-party application such as HandBrake.
- Poster image using same dimensions - choose an image that indicates the page item is interactive.

Adobe.com