TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
EIGHT-TO-FOURTEEN MODULATION [1 record]
Record 1 - internal organization data 2003-12-22
Record 1, English
Record 1, Subject field(s)
- Codes (Software)
- Computer Programs and Programming
Record 1, Main entry term, English
- eight-to-fourteen modulation
1, record 1, English, eight%2Dto%2Dfourteen%20modulation
correct
Record 1, Abbreviations, English
- EFM 2, record 1, English, EFM
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[A] method of encoding source data for CD formats into a form that is easy to master, replicate and playback reliably. 3, record 1, English, - eight%2Dto%2Dfourteen%20modulation
Record number: 1, Textual support number: 1 CONT
With EFM, each 8 bits of source data is converted into a 14 bit code from a lookup table of the 256 possible combinations. In the resulting fourteen bit code, the '0's are used to denote land or pit and the '1's are used to signal a transition from land to pit or vice versa. There are always at least three and no more than eleven '0's between transitions giving nine discrete lengths of pit or land. 3, record 1, English, - eight%2Dto%2Dfourteen%20modulation
Record number: 1, Textual support number: 1 OBS
The Dictionary of New Media is available at: <a href="http://hepdigital.com/" title="http://hepdigital.com">http://hepdigital.com</a>. 4, record 1, English, - eight%2Dto%2Dfourteen%20modulation
Record 1, French
Record 1, Domaine(s)
- Codes (Logiciels)
- Programmes et programmation (Informatique)
Record 1, Main entry term, French
- codage EFM
1, record 1, French, codage%20EFM
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Bien que les CD audio et les CD de données aient un aspect identique, n'essayez pas de lire un CD de données dans un lecteur de Compact Disk. Cela entraînerait le cas échéant une détérioration des haut-parleurs, car les données seraient mal interprétées par le lecteur. Les données sont stockées sur un CD d'une manière numérique, selon un procédé d'enregistrement et de codage particulier. Les informations sont regroupées dans des blocs contenant 2352 octets. Toutefois seuls 2048 octets sont utilisés pour le stockage des données proprement dites, les autres octets étant nécessaires à la synchronisation, à l'identification des blocs et aux contrôles des erreurs. Pour éviter une trop grande alternance de bits de 0 sur 1 et de 1 sur 0, les données ne sont pas stockées par groupe de 8 bits mais de 14 bits. Ce procédé est appelé codage EFM (Eight-to-Fourteen Modulation). 2, record 1, French, - codage%20EFM
Record 1, Key term(s)
- codage E.F.M.
Record 1, Spanish
Record 1, Textual support, Spanish
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