NOTICE

NOTICES — Third-Party Software
==============================

Splitwave is released under the MIT License. However, it incorporates
third-party components that are distributed under different terms.
This file documents those components and their license requirements.


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1. LAME MP3 Encoder (libmp3lame)
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Splitwave optionally links against libmp3lame to provide MP3 encoding.
libmp3lame is licensed under the GNU Lesser General Public License,
version 3.0 or later (LGPL-3.0-or-later).

  LAME Project website: https://lame.sourceforge.io
  LAME license text:    https://github.com/gypified/libmp3lame/blob/master/COPYING

The LAME library is incorporated as a statically compiled dependency
via the `mp3lame-sys` crate (https://github.com/DoumanAsh/mp3lame-sys).
No modifications have been made to the LAME source code.

USER RIGHTS UNDER LGPL-3.0
---------------------------
In accordance with the GNU Lesser General Public License §4(d),
users of Splitwave have the right to:

  1. Obtain the complete corresponding source code of Splitwave
     (available at https://github.com/Horuse/Splitwave), which
     includes all build scripts and instructions necessary to
     recompile the application with a modified or different version
     of libmp3lame.

  2. Recompile Splitwave from source, which includes the complete
     LAME source code (bundled inside the `mp3lame-sys` crate):

      See the Development → Prerequisites section in README.md for
      the full list of build dependencies, then run:

        git clone https://github.com/Horuse/Splitwave
        cd Splitwave
        bun install
        bun run tauri build

     The bundled LAME source is located inside the `mp3lame-sys`
     crate directory (see ~/.cargo/registry/src/*/mp3lame-sys-*/lame-3.100/).
     Users may replace that source tree with any LGPL-compatible
     version of libmp3lame before compiling.

  3. The full text of LGPL-3.0 is available at:
     https://www.gnu.org/licenses/lgpl-3.0.txt



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2. Symphonia
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Splitwave uses the Symphonia audio decoding library for reading
audio files (WAV, FLAC, MP3, AAC, OGG, and others).

  Symphonia is licensed under the Mozilla Public License 2.0 (MPL-2.0).
  Source code: https://github.com/pdeljanov/Symphonia
  License:     https://www.mozilla.org/en-US/MPL/2.0/

No modifications have been made to the Symphonia source code.
The MPL-2.0 requires that modifications to MPL-licensed files be
made available under the same license; unmodified use as a
dependency does not impose additional restrictions on Splitwave.


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3. Tauri
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Splitwave is built with the Tauri framework.

  Tauri is licensed under the Apache License 2.0 and MIT License.
  Source code: https://github.com/tauri-apps/tauri
  License:     https://apache.org/licenses/LICENSE-2.0


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4. DeepFilterNet
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The Noise Suppressor effect uses the DeepFilterNet neural network
model for real-time speech enhancement.

  DeepFilterNet is licensed under the MIT License.
  Source code: https://github.com/Rikorose/DeepFilterNet
  License:     https://github.com/Rikorose/DeepFilterNet/blob/main/LICENSE


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5. VST3 Plugin Hosting
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Splitwave can load third-party VST3 plugins. It does NOT include,
link against, or redistribute the Steinberg VST 3 SDK.

Steinberg distributes the VST 3 SDK under a dual license: GPL-3.0,
or a separate proprietary Steinberg VST 3 licensing agreement.
Neither applies here, because Splitwave contains no SDK code.

The host implementation is built on:

  - `vst3` (https://github.com/coupler-rs/vst3-rs), licensed
    MIT OR Apache-2.0. It provides Rust bindings for the VST 3 API
    generated from the interface definitions; it does not vendor
    Steinberg SDK sources.
  - The COM objects a VST 3 host must expose (IHostApplication,
    IComponentHandler, IPlugFrame and friends) are implemented from
    scratch in this repository under the MIT License.

The RustAudio `vst3-sys` crate, which is GPL-3.0, is explicitly
denied in `src-tauri/deny.toml` so it cannot enter the dependency
tree.

VST 3 is a trademark of Steinberg Media Technologies GmbH.
Splitwave is not affiliated with or endorsed by Steinberg. Plugins
loaded by the user remain under their own licenses; Splitwave
ships none.

VST3 hosting runs on macOS, Windows and Linux. Editors embed as
NSView, HWND and X11 windows respectively; on Linux the host also
implements Steinberg's IRunLoop, which plugins there rely on for
their event handling.


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6. CLAP and Audio Unit Plugin Hosting
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CLAP hosting uses `clack` (https://github.com/prokopyl/clack),
licensed under the MIT License, which binds the CLAP API
(https://github.com/free-audio/clap, MIT License).

Audio Unit hosting (macOS only, as the format is Apple's) uses the
AudioToolbox and AudioUnit system frameworks through the `objc2-*`
binding crates (MIT License). No Apple code is redistributed.

As with VST3, plugins loaded by the user remain under their own
licenses and are not distributed with Splitwave.


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7. Dependency License Gating
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The Rust dependency tree is checked in CI with `cargo-deny` against
an explicit license allowlist (`src-tauri/deny.toml`). Copyleft
crates that would conflict with MIT distribution are denied rather
than reviewed after the fact.


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8. Other Notable Dependencies
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The following components are used under permissive licenses
(MIT, Apache-2.0, BSD-3-Clause, ISC) that impose no additional
obligations beyond preservation of copyright notices:

  - cpal          (Apache-2.0)  https://github.com/RustAudio/cpal
  - rtrb          (MIT)         https://github.com/mgeier/rtrb
  - rubato         (MIT)         https://github.com/HEnquist/rubato
  - ebur128        (MIT)         https://github.com/sdroege/ebur128
  - hound          (Apache-2.0)  https://github.com/ruuda/hound
  - flac-codec     (MIT)         https://crates.io/crates/flac-codec
  - opus / ogg     (MIT/BSD-3)   https://github.com/SpaceManiac/opus-rs
  - libspa         (MIT)         https://gitlab.freedesktop.org/pipewire
  - @xyflow/svelte (MIT)         https://github.com/xyflow/xyflow
  - svelte         (MIT)         https://github.com/sveltejs/svelte

A full machine-readable list of all Rust dependencies and their
licenses can be generated by running:

  cargo install cargo-license && cargo-license