iTunes U untestützt die Verbreitung von komprimierten Audio und Video-Dateien. Apple empfiehlt die folgenden Formate: Audio files (AAC, MP3) with appropriate file extensions (.m4a, .mp3). For best results during playback, Apple recommends converting MP3 files greater than 32 megabytes (MB) to AAC format. For AAC audio files, Apple recommends the following specifications: Audio Format: Baseline Low-Complexity Profile with AAC-LC (Music) Data Rate: Up to 160 Kbps Channels: Stereo (in .m4v, .mp4, and .mov formats) Output Sample Rate: 48 kHz Encoding Quality: Better
Video files (MPEG-4 with H.264 compression) with appropriate file extensions (.mp4, .m4v, .mov). For best results with iPod, Apple recommends using MPEG-4 with H.264 compression with the following specifications: Video Format: MPEG-4 with H.264 Data Rate: Up to 1.5 Mbps Image Size: 640 x 480 pixels Frame Rate: 30 frames per second Key Frame: Every 24 frames Audio Tracks: Baseline Low-Complexity Profile with AAC-LC audio up to 160 Kbps
Darüber hinaus können PDF-Dateien hochgeladen werden, eine Prüfung der Adobe-Version o.ä. erfolgt bei der Bereitstellung nicht. |
