Alac Tags


AAC-LC, AAC-HE, ALAC encoding are supported. M4a container (just a MP4 container with 'M4A ' brand, created by Apple) is used by default, but you can also mux into ADTS. Filenames and tags are.

  1. Alactasia Icd 10
  2. Alactasia Syndrome
  3. Alac Tags Svg
  4. Alactasia Treatment
  5. Alactasia
  1. The universal tag editor and more. Mp3tag is a powerful and easy-to-use tool to edit metadata of audio files. It supports batch tag-editing of ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE Tags for multiple files at once covering a variety of audio formats.
  2. I've encountered a strange issue where ID-Tags get corrupted in ALAC files on any edit/conversion operation and bloew is a test case that illustrates it: - fresh install dMC-R17.1-Ref-Trial with all the default settings.

Main features:

Batch Tag Editing Write ID3v1.1, ID3v2.3, ID3v2.4, MP4, WMA, APEv2 Tags and Vorbis Comments to multiple files at once.

Alac Tags

Support for Cover Art Download and add album covers to your files and make your library even more shiny.

Import from Discogs, freedb, MusicBrainz Save typing and import tags from online databases like Discogs, freedb, MusicBrainz, and more.

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Replace characters or words Replace strings in tags and filenames (with support for Regular Expressions).

Create Playlists automatically Create and manage playlists automatically while editing.

Rename files from tags Rename files based on the tag information and import tags from filenames.

Export to HTML, RTF, CSV Generate nice reports and lists of your collection based on user-defined templates.

Full Unicode Support User-interface and tagging are fully Unicode compliant.

Besides these main features Mp3tag offers a variety of other functions and features ranging ranging from batch export of embedded album covers, over support for iTunes-specific tags like media type or TV Show settings, to combining multiple actions into groups that can be applied with a single mouse click.

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Extension: .m4a
Codec Type:
Apple Inc.
16 & 24 bit, multi channel & high frequency audio
Extra Details:
Stored in MPEG 4 container
iPod support, fast decoding, versatile ID Tagging
Limited support outside of iPod / iTunes
ID Tagging:
Quicktime / iTunes

Alac Tags Svg

Apple Lossless (also known as Apple Lossless Audio Codec, ALAC, or Apple Lossless Encoder, ALE) a type of audio compression created by Apple Inc.

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Having Lossless in the name, obviously means Apple Lossless is a Lossless codec, unlike a lossy codec (such as mp3) where audio quality is lost forever in the name of smaller files, lossless stores the original CD track without loss, like zip for audio. Apple Lossless can compress CD quality audio file to roughly half its original size.


Apple Lossless files are stored in the MPEG 4 container and have a .m4a extension. The MPEG 4 container is also used for Advanced Audio Compression (AAC), a lossy compression (currently all tracks purchased from iTunes Music Store (iTMS) are AAC).

Have a .m4a file but do not know if it contains Apple Lossless or AAC? dBpoweramp Music Converter is able to show the contents (Apple Lossless or AAC) of an m4a file, by simply holding the mouse over.


Compression wise, ALAC is quite average amongst other Lossless codecs, whilst decoding speed is one of its strongest assets. ALAC files are not hindered by tagging limitations.

ID Tagging

Being stored in a m4a file, Apple Lossless files are tagged using the Quicktime / Apple iTunes tagging format, a relatively simple tagging format, supports Unicode characters (UTF-8). Any ID tag name can be added, yet the maximum length of each tag value is 255 characters. Multiple artists, etc are supported as is embedded album art.

Technical Details

Thought to be based loosely on FLAC (Free Lossless Audio Codec), both use Linear Prediction, Apple have not released any technical documents on Apple lossless, 3rd-party manipulation of Apple Lossless files are solely to the reverse engineering work of David Hammerton [craz.net]. Apple Lossless files can be decoded at relatively high speed, in comparison to other lossless codec.

Apple lossless supports 16 bit and 24 bit audio, as well as multi channel audio, such as 5.1

First appearance: April 2004 with iTunes 4.5.

Technical Lossless Codec Comparison [wiki.hydrogenaudio.org]