Manual
Table Of Contents
- Introduction
- Supported Codecs and Formats
- The Sonnox Fraunhofer Pro-Codec
- Additional Information on Workflows
- Lossless Codecs (mp3-HD and HD-AAC)
- Description of Controls
- Presets and Project/Session Data Handling
- Preset Manager Toolbar
- Pro-Codec Signal and Control Flow Diagram
- Specifications
- Copyright and Acknowledgements
- Manual Revision History
- Platform Specific Supplement
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2.1 Additional Codec Details
Please see section 10 for Codec specifications.
2.1.1 Apple AAC iTunes Plus (Mastered for iTunes) (Mac only)
The addition of this Apple AAC codec allows real-time audition of files produced under the
Mastered for iTunes initiative that are destined for the iTunes store.
This codec is available for Mac computers only. It uses the same Apple codecs and re-
samplers that are used for the current iTunes Catalogue. It very specifically re-samples to
44.1 kHz if necessary, and encodes as AAC-LC, 256kbps, variable bit rate and maximum
quality, which are the settings used for the iTunes catalogue. For online audition, the signal is
then resampled back to the host DAW sample rate if necessary.
This option is available only for stereo configuration. There are no options to change the
iTunes codec settings because this would not be representative of the iTunes Plus standard.
The Apple codecs and re-samplers are components of the Mac OSX operating system, so can
be upgraded during an OSX update.
On Windows computers, the closest approximation to the iTunes Plus codec is to select
Fraunhofer AAC-LC codec set to highest quality VBR at 256kbps.
2.1.2! MPEG Surround (Fraunhofer)
MPEG Surround is a feature-rich open standard compression technique for multi-channel
audio signals. Operating on top of any core audio codec — including AAC, HE-AAC and
MPEG Layer 2 — the system provides a comprehensive feature set, including highest
surround and stereo audio quality, multi-channel support at stereo bit-rates and virtualized
binaural multi-channel sound reproduction capability for stereo headphones.
2.1.3! HD-AAC (Fraunhofer)
The HD-AAC codec now supports 16-bit files in addition to 24-bit data.
Please see section 5.1.1 for more details.
2.1.4! AAC-LC (Fraunhofer)
The AAC-LC codec now supports a 96 kHz session sample rate and a VBR mode at 256kbps.