mkvpropedit

Delete title from a Matroska file

$ mkvpropedit -d title [path/to/file.mkv]

$ mkvpropedit [path/to/file.mkv] -e track:s3 -s flag-hearing-impaired=1

$ mkvpropedit [path/to/file.mkv] -e track:a2 -s flag-default=1

$ mkvpropedit [path/to/file.mkv] -e track:v1 -d name

$ mkvpropedit [path/to/file.mkv] -e track:a1 -s language=eng

$ mkvpropedit -l

mkvpropedit [options] source-filename [-e selector] [-s name=value] [-d name]

mkvpropedit modifies properties of existing Matroska files without requiring a complete remux. It can edit segment information (titles, UIDs), track headers (language codes, names, flags), chapters, tags, and attachments.
Track selectors use the format track:TYPE_NUMBER where TYPE is v (video), a (audio), s (subtitle), or b (button), and NUMBER starts at 1. Using track:n selects the nth track regardless of type.

-e, --edit _selector_

Select segment info or track to edit (info, track:n, track:an, track:vn, track:sn)

Set property value; creates if not exists

Add property; allows duplicates

Remove property

Add, replace, or remove tags

Add, replace, or remove chapters

Attach file to container

Remove attachment

Display all editable properties with descriptions

Set parsing mode: fast (default) or full for damaged files

Show Matroska elements as processed

Changes modify the original file in place. Property names must match exactly; use -l to list valid names. Some properties cannot be added to tracks that do not already contain them. Language changes affect both IETF and legacy language elements by default.

mkvpropedit is part of MKVToolNix, developed by Moritz Bunkus. MKVToolNix provides a complete suite of tools for creating, inspecting, and modifying Matroska multimedia container files.

mkvmerge(1), mkvinfo(1), mkvextract(1)