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Recursively mirror a directory tree of FLAC audio files to AAC.

Project description

Recursively mirror a directory tree of FLAC audio files to AAC. Source files can be filtered (by sub-directory, or full path) in order to limit the files converted. The script will also attempt to retain all meta-data fields in the output files.

At a Glance

  • Mirror directory tree of FLAC files audio files to AAC (re-encoded using NeroAacEnc?).

  • Filter source tree using one or more sub-directory paths.

  • By default, will only re-encode missing or out-of-date AAC files.

  • Optionally deletes orphaned output files.

  • Multi-threaded encoding ensures full CPU utilization.

  • Supports transfer of FLAC meta-data including title, artist, album.

  • Converts FLAC replaygain field to Apple iTunes Sound Check.

  • Resizes and embeds album cover art JPEG files to destination files.

Usage Model

  • Hard disk space is cheap, but flash-based media players are still limited in capacity.

  • Create an AAC encoded “mirror” of your music files for portability.

  • Setup a daily cron job to always keep your FLAC and AAC files syncronized.

  • Re-encode your FLAC library to different AAC bit-rates in one command.

Installation Steps

  1. Any one of the following command will install flacsync. Make sure to run as root user:

    1. Use easy_install from the setuptools package:

      sudo easy_install flacsync
    2. Download the source distribution file and install from the command line:

      tar xzf flacsync-*.tar.gz
      cd flacsync-*
      sudo make install
  2. Install the Nero AAC Code binaries.

  • The archive is located at the Nero AAC Codec Download Page

  • Extract the archive files neroAacEnc and neroAacTag to any directory defined in your PATH statement. A recommended location would be either /usr/bin or /usr/local/bin.

  1. Review the usage instruction by running:

    flacsysnc -h

Project details


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