Release Notes - Nero AAC Codec

Current Version: 1.5.1.0

Release Date: December 17, 2009

New Features:

• neroAacEnc:
  - Improved encoding of sample rates higher than 48kHz
  - Solved compatibility issues with some hardware devices
  - Write iTunes compatible gapless data
  - Enabled preserving of very quiet high frequencies at high bitrates
  - Write the encoder settings to metadata - Executable size reduction
• neroAacDec:
  - Improved error handling
  - Speed up
• neroAacTag:
  - Support 3GPP tags
  - Support Sony Memory Stick tags
  - Improved cover art support
  - Improved support for files with multiple tags in different formats (ND,iTunes,3GPP,Sony Memory Stick)
  - Writes iTunes tags by default, added switch to enable ND tags

Version Number: 1.3.3.0

Release Date: September 17, 2008

New Features:

• neroAacEnc:
  - Improved multichannel encoding
  - Solved compatibility issues with some hardware devices
  - Improved CBR bitrate control
  - Ignore wave file length of 0 on -ignorelength
  - Solved issue with very long files and -2pass
  - Removed special SSE compile, all optimizations have been merged with the normal compile
  - Linux version speed optimized
  - Encoder exits gracefully and writes valid MP4 file on ctrl+c
• neroAacDec:
  - Fixed incorrect channel output for 7.1 encodings
• neroAacTag:
  - Linux version available

Version Number: 1.1.34.2

Release Date: August 6, 2007

New Features:

• neroAacEnc
  - Linux version
  - New q value mappings
  - Retuning of almost all bitrates
  - Fix in HEv2 encoder/decoder delay
  - Fixed incorrect streamlength written in MP4 files
  - Significant speedup
  - Removed -hinttrack option
• neroAacDec
  - Linux version
  - Fixed a memory leak
• neroAacTag
  - Added -hinttrack option

Version Number: 1.0.7.0

Release Date: February 13, 2007

New Features:

• neroAacEnc
  - Quality tuning for some bitrates
  - Added support for 16 and 22.05 kHz samplerates for HE AAC
  - Fixed HE AAC configuration problems for 5.1 files (at q=0.0)
  - Temporary file handling fixed on Windows Vista
  - Various speed optimisations
• neroAacDec
  - Small speedups
  - Reduced memory usage
• neroAacTag
  - No changes

Version Number: 1.0.0.2

Release Date: May 18, 2006

New Features:

• neroAacTag.exe for Nero Digital™ Audio+ Tagging
• Nero AAC Encoder
  - Now writes mpeg-4 tags at the beginning of the MP4/3GP files
  - Now supports multiple input files (-if) and produces a multichapter 
    MP4 file when more than one input file is present
  - Backwards compatible signalling of SBR and PS Audio Object Types
    (also when LC is used for encoding) for improved 3GPP
    Compatibility
  - Added progress display
• Nero AAC Decoder
  - changed to new faster AAC/HE-AAC/HE-AAC v2 decoder
  - Added support for the backwards compatible signalling and
    corresponding behaviour

Version Number: 1.0.0.0

Release Date: May 1, 2006

• Initial Release