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SignStream® 3.4.0 system requirements:
macOS Monterey (12), Big Sur (11), Catalina (10.15), Mojave (10.14), High Sierra (10.13), Sierra (10.12), or El Capitan (10.11).
Mac computer with 64-bit Intel or ARM (Apple Silicon) processor
Note that SignStream® 3.0.4 has not yet been extensively tested with the new ARM hardware. There may be some differences in how the program works with this hardware.
If you decide to use SignStream® 3.4.0 with the ARM processor: When you double-click on SignStream® for the first time--after following all installation instructions very carefully--you will be asked to install Rosetta (which emulates the Intel instruction set) if it is not already installed. You can then double-click on SignStream again to launch it.
2 GB of RAM
250 MB of hard drive space
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Those publishing results based on use of this software and/or data should cite, as appropriate: