Downloads

Requirements

Yasla Pro/Lab require macOS 13 Ventura or newer (see below for previous versions) and a Mac with an Apple Silicon or an Intel CPU. CPU and GPU requirements depend on the number of tracks and the kind of media material used.

Release notes are available from within the application, see Release Notes in the Help menu.

Yasla Pro

Yasla Pro is the standalone version for document viewing and editing.
After downloading, open the downloaded disk image, drag the contained application file to the 'Applications' folder, and launch Yasla from there (please do not launch Yasla from inside the disk image).
Yasla Pro 4.0

Yasla Lab

Yasla Lab is the sign language laboratory version, incl. workstation connectivity, teacher functionality, and administration tools.
After downloading, double-click the downloaded package, and follow the installer through the necessary steps. Alternatively, the .pkg file can be remotely deployed with a lab management tool ('Apple Remote Desktop' or similar).
Yasla Lab 4.0

Previous Versions

Older versions of Yasla are still available for older versions of macOS (for the version your machine is using see About this Mac in the Apple menu).

macOS 12 Monterey – macOS 10.14 Mojave:

Yasla Pro/Lab v3 uses the same file formats, network protocols and activation keys as the current version.

After downloading, please follow the installation instructions for the current versions given above.

macOS 10.13 High Sierra – OS X 10.10 Yosemite:

Yasla v2 network protocols and activation keys differ from the current version. The file format is different also, but Yasla v2 can read the file format of the current versions (track types and features not available in Yasla v2 will be ignored), and the file format of Yasla v2 can be opened by current versions.

After downloading, unpack the ZIP file, drag the resulting application file to the ‘Applications’ folder, and launch Yasla from there.

Included Helper Programms

Yasla contains command line utilities from the FFmpeg project.