Apple Soundtrack Pro project
File type: Audio and sound file
An stmp file is a project file created by Apple Soundtrack Pro, Apple's audio editing application for Mac OS X and macOS.
It stores an editable Soundtrack Pro audio project rather than a standalone audio recording.
File type category:
Audio and sound file
Date updated: October 23, 2026
Record marked as obsolete and not updated for a long time.
Apple Soundtrack Pro was Apple's audio editing and sound design application for Mac OS X and macOS. An stmp file contains the project information needed to continue editing a Soundtrack Pro project, including its audio arrangement and processing settings.
Soundtrack Pro was part of Apple's Final Cut Pro and Logic Pro software and was used for audio work in video and music production. The project file is separate from the audio media used by the project, so the associated media may also be required when opening it on another computer.
Soundtrack Pro has been discontinued, and the stmp format is obsolete.
Open the stmp file in Apple Soundtrack Pro on a Mac running a compatible version of Mac OS X or macOS. If the project uses external audio media, keep those files available as well.
Soundtrack Pro is discontinued, so it may not run on current macOS versions. Apple Logic Pro and Apple Final Cut Pro are associated with Soundtrack Pro, but they should not be assumed to open every Soundtrack Pro project directly.
An stmp file is an editable project, not a standard audio format, so it cannot normally be converted directly with a general-purpose converter. Open it in Apple Soundtrack Pro and export or render the project to another audio format if the application and its source media are still available.
Exporting produces a rendered audio file and does not preserve the original Soundtrack Pro project structure or editing information.
Software applications that can open stmp files:
Apple macOS / Mac OS X
Software applications that can edit stmp files:
Apple macOS / Mac OS X
Software capable of saving stmp files:
Apple macOS / Mac OS X
Software apps that create stmp files:
Apple macOS / Mac OS X
Language
