Stem Studio v1.1.0-windows.2 — Unofficial Gumbii Community Build

Stem Studio — Unofficial Gumbii Community Build

This is an unsigned, open-source Windows 11 x64 prerelease maintained by
Gumbii Digital. It is a community port of Sam Wasserman's Stem Studio and is
not an official Wasserman Productions release. The separate application ID,
install name, shortcuts, and data folder prevent it from replacing an official
Stem Studio installation.

Windows SmartScreen may show Windows protected your PC because the
installer is not code-signed. After verifying the download checksum, choose
More info, confirm the displayed installer name, then choose Run anyway.

Verify the installer before running it:

Get-FileHash .\Stem-Studio-Gumbii-Community-*.exe -Algorithm SHA256
Get-Content .\SHA256SUMS

The first separation provisions a private CPython 3.12.10 environment and
downloads pinned dependencies and TIGER-DnR model assets. Allow roughly 6 GB
of free disk space and an internet connection. The CPU profile is the supported
release path; NVIDIA CUDA is experimental and automatically falls back to CPU.
Public builds expose only licensed TIGER Fast and High modes. MVSEP and Max are
not available.

TIGER-DnR is pinned to revision
b7a59560bbca10febbcd46fb01600f868e587f57. Before loading, Stem Studio
verifies SHA-256 ba9d2f833bf2f3a5855a35d0ccd11c786f6b92f1a482d84404bc4673edb29b54
for config.json and
dd1c696e72f6adea0085ef1af640882a8260519ad666422835e387a5b4abdd2a
for model.safetensors.

Stem Studio source remains Apache-2.0 with the original LICENSE, NOTICE,
copyright, citation, and Sam Wasserman credit preserved. Packaged FFmpeg and
FFprobe are separate GPL-3.0-or-later components. This release includes their
license, checksums, provenance, build inputs/corresponding source, third-party
notices, and SPDX/CycloneDX SBOMs.

Windows port maintained by Gumbii Digital. No upstream trademark rights or
endorsement are implied.