NOTICE

dictee — NOTICE

src/diar/ contains code derived from speakrs v0.4.2
(https://github.com/avencera/speakrs), Copyright 2026 Praveen Perera,
licensed under the Apache License 2.0 (see LICENSE-APACHE). It is
redistributed here as part of dictee-asr under GPL-3.0-or-later, as
permitted by Apache-2.0 section 4.

Modifications from the original:
- extraction of the sequential offline pipeline only (no CoreML, no
  concurrent/queued modes, no hf-hub downloading, no batched model variants);
- pure-Rust linear algebra (nalgebra Cholesky reduction + SymmetricEigen)
  replacing ndarray-linalg/BLAS for the PLDA generalized eigenproblem;
- exact-speaker-count AHC dendrogram cut (oracle mode);
- ONNX session construction through the dictee-asr ExecutionConfig
  conventions (CUDA/CPU provider selection, load-dynamic runtime).

The pipeline itself is a Rust reimplementation of the pyannote
speaker-diarization-community-1 approach (segmentation + embeddings +
AHC/PLDA/VBx clustering).