File Format Whitelist
This list documents the file formats that are approved for submission and archiving at the Language Archvie Cologne. For a more detailed and descriptions of best practices regarding file formats see the LAC Submission Guidelines. For each data type, the acceptable file formats are given in the order of preference – from preferred to acceptable. However, all listed formats are equally accepted.
Metadata Files
Audio files
WAV with Linear Pulse Code Modulation (LPCM) audio (preferred sampling rate 48 kHz and bit depth 16 bit)
Video Files
MP4 : Video codec h.264 (preferred profile: main, level: 4.0, 1080p, 30fps), Audio encoding AAC (LC) (preferred sampling rate 48 kHz and bit rate 128–384 kbps). MOV : Video codec h.264 (preferred profile: main, level: 4.0, 1080p, 30fps), Audio encoding LPCM (preferred sampling rate 48 kHz and bit depth 16 bit).
Annotations
TEI (in particular ISO 24624:2016)
Written resources
Text files (plain UTF–8 encoded)
XHTML
Still Images
TIFF
JPEG2000
PNG
JPEG
Additional metadata
other XML Metadata formats
CSV encoded metadata (preferably with W3C Metadata Vocabulary for Tabular Data annotations)