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MEI/AV Wiki

This table serves as a basis for the documentation on coding audiovisual materials in MEI on GitHub.

Elements needed for the encoding of audiovisual material

Titles, Shelfmarks, Ownership

Content	MEI element	Suggested element	Remarks
title	mei:title
shelf mark(s)	identifier type="shelfmark"
ownership	mei:physLoc

Physical object (technical data/description): mei:physDesc

Content	MEI element	Suggested element	Remarks
Number of carrier materials	mei:manifestation		(for each material a manifestation)
Carrier type	mei:carrierForm
Production level			Would that be relevant for the audio layer? Is there also a corresponding vocabulary for audio?
Runtime image	mei:perfDuration type="video"
Runtime audio	mei:perfDuration type="audio"
Playback speed B/s	mei:playingSpeed		(mit Hilfe eines @unit-Attributs spezifizieren?, bislang geht nur @type)
Playback speed cm/s	s. o.
Playback speed U/min	s. o.		adjust values?
Video standard system			there is no element like signalFormat or similar
Screen aspect ratio (original)/Bildseitenverhältnis (Original)			there is no element like frameType or similar
Black and white/color
Sound/mute
Sound/Audio format mono/stereo	mei:soundChan
Text annotations on the film carrier outside the scan area (e.g. film material batch number) / Textvermerke auf dem Filmträger außerhalb des Scanbereichs (z.B. Filmmaterialchargennummer)
Material film, painted film, etc.
Accompanying documents	mei:accMat

Digitized object

Content	MEI element	Suggested element	Remarks
Image file (Scanner output, file format)
Audio file (Scanner output, file format)	mei:avFile (with @mimetype attribute)
Image - Encoding Software
Image - Codec
Image - Container
Audio - Encoding Software	mei:specRepro
Audio - Codec
Audio - Container
Resolution width in px
Resolution height in px
Color depth in bit
Color space
Audio bit depth in bit
Sampling rate in kHz
Audio track assignment information
TC Information			--> ?
Chapter marks (STCs)/ Structural marks
Bitrate Mbit/Sec
Special features of the file
Timestamp of the file

Digitization process

Content	MEI element	Suggested element	Remarks
Cleaning of material	mei:treatHist/mei:treatSched?
Quantity of glued areas / Menge der Klebestellen	mei:condition?
+ Location of the glued areas			requires possibility of exact addressing
Peculiarities of a single role compared to a group of roles			should be sufficiently describable using multiple mei:items
Time of digitization (timestamp of the file)
Publisher of digitized object
...

To be expanded ...