ID3 tag

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ID3 tag

A field of meta-data in MP3 and MP3pro audio files. The tags describe the contents, including song title, artist, album, year, comment, CD track and genre. ID3 tags are used for searching as well as displaying the title being played. In many cases, ID3 tags are not filled in or are erroneous, and an "ID3 tagger" utility, also called an "audio tagger" or "MP3 tagger," can be used to update them.

Other than MP3
Although often erroneously called ID3 tags, other audio files (AAC, WMA, Ogg Vorbis, etc.) have their own meta-data tag format, but hold the same kinds of data. See music search and MusicBrainz.

Why Were Song Titles Missing?
CDs followed phonograph records, which contained nothing but sound waves "carved" into the vinyl platters. Reserving a few thousand bytes for the names of the album, artist and songs when there were 650 million available on the disc might seem obvious, but nobody envisioned playing music on the computer, and digital displays on CD players were expensive back then. Therefore, track number and length were the only meta-data in a CD until more descriptive fields (tags) were added later (see CD Text).

ID3 Format
Version 2 of the format (ID3v2) supports variable-length fields that hold titles of any length as well as the album cover image. The tags are at the beginning of the file so that song information can be displayed at the start for streaming audio.

The original version of the format located the data in the last 128 bytes of the file and was limited to 30-byte text fields, a 4-byte year and 1-byte genre (80 categories). Version 1.1 (ID3v1.1) added CD track number. For more information, visit See music CD identification, music search, metadata and streaming audio.
References in periodicals archive ?
En este trabajo se evidencio tambien una relacion entre los niveles de somnolencia diurna y algunas variables de gravedad del sindrome como el IAH y el ID3.
Matematicamente se demuestra que este criterio de seleccion de variables utilizado por el algoritmo ID3 no es justo, ya que favorece la eleccion de variables con mayor numero de valores.
The ID3 algorithm seeks to minimize the number of discriminating attributes involved in the final decision rule and will screen out those factors that are not necessary for the minimal decision tree.
We derived consistency rule ID3 concluding results of analysis of UML metamodel specification and MagicDraw UML tool.
Once you've calculated the BPM of an MP3 file, you can store it within the general info about the file (specifically, in the ID3 tag).
The company has launched a European operation based on the Isle of Man and is using GB's ID3 technology which can check the details of more than 800m people in more than 26 countries.
To construct quality decision trees, we employed the ID3 algorithm, which is originally a machine-learning algorithm (Quinlan, 1983) for generating decision rules from a set of training examples.
In addition, we have included in our study inhibitor of DNA binding genes ID1, ID2, and ID3 (inhibitors of DNA binding 1,2, and 3, dominant negative helix-loop-helix protein), the expression of which is known to inhibit neuroectoderm differentiation in undifferentiated mouse ESCs (14), although the importance of the ID genes in hESCs has yet to be confirmed.
Other key features of the new multi-media device include digital voice recording, ID3 tag support for song information display and integrated rechargeable battery.
The following decision tree algorithms have been used for prediction and classification: ID3, C4.
In 2002, the Church Pension Group deployed Fiserv's ID3 policy admin system to support its group medical, group life, individual life, and annuity products.