About AAC/Podcast Export Options

In addition to the general options for all export formats (see General Export Options), there are additional options when you export as AAC/Podcast files. The AAC/Podcast export options are divided into three separate panes: Audio, Streaming, and Podcast.

About Options in the Audio Pane for AAC/Podcast Export

The following export options are available in the Audio pane:

Figure. Export dialog with AAC and Podcast options.
  • Bit Rate slider and field: Move the slider to set the overall audio bit rate for an exported media file between the range of 16 Kbps (2 KB/sec.) to 256 Kbps (32 KB/sec.), or enter a specific number in the accompanying field.

About Options in the Streaming Pane for AAC/Podcast Export

The following export options are available in the Streaming pane:

Figure. AAC and Podcast Streaming Pane.
  • Streaming hints enabled checkbox: Make sure that this box is selected if you want the MPEG-4 Part 2 output format streaming settings to be applied.
  • QuickTime Streaming Server Compatibility (pre v4.1) checkbox: Select this checkbox if you want your exported file to work with an older QuickTime Streaming Server (version 4.1 or earlier). You don’t need to select this box if you are using a newer version of QuickTime, because any streaming compatibility issues are automatically resolved.
  • Maximum Packet Size field: Enter a number to specify the largest file size allowable (in bytes) for a streaming packet in your output media file. The packet size you choose should be no larger than the largest packet used on any network between the streaming server and the viewer.
  • Maximum Packet Duration field: Enter a number to specify the longest duration allowable (in milliseconds) for a streaming packet in your output media file. The duration affects MPEG-4 Part 2 audio only. It limits the maximum amount of audio (in milliseconds) in any packet, which limits the audio dropout created by the loss of a packet.

About Options in the Podcast Pane for AAC/Podcast Export

You can specify which type of podcast you want to export.

Figure. Podcast Pane in AAC/Podcast Export dialog.
  • No Video button: Select this option to export an audio-only (AAC) file. The resulting podcast file will have the .m4a extension.
  • Enhanced (images) button: Select this option to export an enhanced podcast containing audio and chapter marker images. The resulting podcast file will have the .m4a extension and will include chapters and web links if you specified them in Soundtrack Pro.

    Note: “Enhanced (images)” is the only option that allows for still images to appear in the resulting podcast.

    For more information, see Creating Podcasts in Soundtrack Pro.

  • Video Track button: Select this option to export an MPEG-4 (.m4v) file containing both audio and video. For more details, see Exporting Video Podcasts Directly from Soundtrack Pro.

    For complete control over the various video parameters, use Compressor (instead of this Export dialog). For more information, see Exporting a Master Mix Using Compressor.