Changes between Version 11 and Version 12 of Encode/AAC


Ignore:
Timestamp:
Jun 13, 2013, 2:18:19 AM (6 years ago)
Author:
llogan
Comment:

add more info about libvo_aacenc

Legend:

Unmodified
Added
Removed
Modified
  • Encode/AAC

    v11 v12  
    7979Unfortunately, many devices that can play AAC-LC (the default profile for `libfdk_aac`) simply cannot play either version of AAC-HE, so this is not recommended for surround sound audio, which normally needs to be compatible with such hardware players. If you are only going to play it on your computer, or you are sure that your hardware player supports AAC-HE, you can aim for a bit rate of 160kb/s for version 1, or 128kb/s for version 2. As always, experiment to see what works for your ears.
    8080
    81 The following examples are adapted from [[http://ubuntuforums.org/showpost.php?p=12421935&postcount=34|this ubuntuforums post]].
     81The following examples are adapted from [[http://ubuntuforums.org/showpost.php?p=12421935&postcount=34|this Ubuntu Forums post]].
    8282
    8383==== AAC-HE version 1 ====
     
    109109== libvo_aacenc ==
    110110
    111 !VisualOn AAC encoding library. Requires ffmpeg configuration with `--enable-libvo-aacenc`. This has the advantage of not being non-free, and is included by some distributors, but is a rather poor encoder compared to `libfdk_aac` and even the native FFmpeg AAC encoder according to [http://d.hatena.ne.jp/kamedo2/20120729/1343545890 Quality Assessment of FFmpeg AAC]. This encoder does not work with `-q:a`/`-qscale:a`.
     111!VisualOn AAC encoding library. Requires ffmpeg configuration with `--enable-libvo-aacenc`. This has the advantage of not being non-free, and is included by some distributors, but is a rather poor encoder compared to `libfdk_aac` and even the native FFmpeg AAC encoder according to [http://d.hatena.ne.jp/kamedo2/20120729/1343545890 Quality Assessment of FFmpeg AAC]. This encoder supports up to 2 channels, is CBR only, and does not work with `-q:a`/`-qscale:a`.
    112112
    113113==== Example ====
     
    120120== libfaac ==
    121121
    122 Freeware Advanced Audio Coder. Requires ffmpeg configuration with the ironic options of `--enable-libfaac --enable-nonfree`. Note that you will not get as good results as with libfdk_aac.
     122Freeware Advanced Audio Coder. Requires ffmpeg configuration with `--enable-libfaac --enable-nonfree`. Note that you will not get as good results as with `libfdk_aac`.
    123123
    124124==== Variable Bit Rate (VBR) Example ====