From Audacity Manual
Most export formats support at least the seven default tags in Metadata Editor, but support in player applications varies from almost universal for the ID3 tags used by MP3 to negligible for WAV. See this Frequently Asked Question for more details.
- By default, Metadata Editor appears for each exported file after choosing the file format in the Export File or Export Multiple dialogs.
- When using Export Multiple, it's often easier to uncheck "Show Metadata Editor before export step" in Import / Export Preferences, then enter any tags common to all tracks at before exporting. Audacity will then add the automatically generated Track Title and Track Number tags for each exported file without the Editor appearing.
- Metadata Editor shows data for the most recently imported track in the project, not the selected track. If you need the editor to show separate data for each track, import the files into separate projects.
- Use the button in Metadata Editor to complete the Export. The button only saves an optional template of Tag names and values.
Tag and Value fields
- Tag Name: The first seven Tag names are permanent and cannot be edited. You can add more Tag rows and give them a customised name and value using the "Add" button (see below). Note: "Album Title", "Track Number", "Genre" and customized tags are not supported for WAV and will not be exported or imported.
- Tag Value: Type in the data you want for each Tag, or accept the data already present from an imported file. You don't have to fill in every value. When exporting multiple files, the "Track Title" and "Track Number" tags are pre-filled automatically from the names and ordering of the tracks or labels.
Single-clicking on a value field (or navigating into it with the keyboard Arrow keys) selects that field - typing will replace the contents. Tab can be used too, and also permits navigation into the buttons below the Tag and Value fields.
- Double-clicking a field (or selecting it, then using keyboard F2) highlights the text in the field. This allows the text to be edited rather than merely replaced, and permits cut, copy or paste using standard system shortcuts or a right-click context menu. Use keyboard Home, End or Arrow keys to navigate to individual characters. Once a value field has been replaced or edited, press the Return key to select the next value field, or click in any other one to select it.
- Add: Adds a new, empty row to the list for your own custom Tag (by default there is already one empty row at the bottom of the list). You can select and edit both the name and value fields exactly as above.
- Remove: Removes the currently selected custom row from the list, or the value data only from the currently selected permanent row.
- Clear: Returns the Editor to default state (seven permanent tag names with empty values, plus one empty row).
- Edit: Edits the drop-down list displayed in the Value field of the Genre tag. The entire list is selected on open. To navigate it for editing, click the required item or use the keyboard Arrow keys. To add an entry, press keyboard End then type the name you want. The list will be automatically sorted when saved.
- Reset: Resets the genre list to the default.
- Load: Loads a previously saved list of Tag names and values into Metadata Editor.
- Save: Saves the current list of Tag names and values to a file on your drive.
- Set Default: Makes the current list of Tag names and non-empty values the default state whenever opening a new, empty project. To clear the default, press
Even if you set a Default, if you import a file containing metadata, that metadata will appear in Metadata Editor. If you always want a fixed set of metadata to show after importing a file, you need to save that set as a template then load the template after importing the file. then .