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This bundle contains speech synthesized from the voices of LibriSpeech (LibriVox) readers and channel-perturbed derivatives of LibriSpeech. By requesting access you agree to use it only for research on speech deepfake detection and source tracing, not to impersonate anyone, and to respect the per-source terms in DATA_LICENSES.md (F5-TTS, XTTS-v2 and EnCodec outputs are non-commercial research use only).
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Where Modern Zero-Shot TTS Leaves Its Trace — data bundle
Audio, embeddings, manifests, result tables and provenance for the manuscript "Where Modern Zero-Shot TTS Leaves Its Trace: Localizing Source-Tracing Cues in Self-Supervised Speech Representations" (M. Lee, J. Choo, KAIST AI; under review, submitted to ICASSP 2027). Code and the claim-to-file map: https://github.com/Firminwoo1015/tts-source-tracing.
| archive | contents | size |
|---|---|---|
manifests_and_results.tar |
manifests, QC list, speaker folds, every result table of the paper (results/paper5c17), analysis_plan.md, provenance (provenance.json, per-file provenance_files.jsonl.gz), licenses |
5.3 MB |
embeddings.tar |
layer-wise mean-pooled SSL embeddings (WavLM-Large, HuBERT-Large, XLS-R, wav2vec2-LV60, w2v-BERT 2.0) for every condition used in the paper: clean, interventions, decoder-only, the seven perturbations, trim+RMS, controlled seeds | 8.26 GB |
audio_generated.tar |
TTS outputs of F5-TTS v1, XTTS-v2, Fun-CosyVoice3, Chatterbox, IndexTTS-1.5 (24 kHz), the analysis–synthesis interventions, and the decoder-only vocoder outputs | 2.28 GB |
audio_perturbed.tar |
the seven perturbations of the five systems and of LibriSpeech real (16 kHz; three realizations for noise and phase randomization) |
4.45 GB |
audio_subsets.tar |
controlled-seed subsets (seeds 101–103, 20 speakers × 3 utterances × 5 systems) | 0.31 GB |
Verify with sha256sum -c SHA256SUMS. Restore with tar -xf <archive>.tar from the root of the code repository.
Licenses
Per-source terms are in DATA_LICENSES.md (inside manifests_and_results.tar and in the code repository).
LibriSpeech/VCTK derivatives: CC BY 4.0 with attribution. Outputs of Apache-2.0/MIT models
(CosyVoice3, Chatterbox, IndexTTS-1.5, Vocos, BigVGAN-v2, DAC, ParallelWaveGAN):
research use with attribution. Outputs of F5-TTS (CC BY-NC 4.0), XTTS-v2 (CPML) and
EnCodec (weights CC BY-NC 4.0): non-commercial research use only. Voices are clones of public
read-speech corpora; do not use them to impersonate anyone. Original LibriSpeech/VCTK files are
not redistributed.
Reproduction
The main run follows each wrapper's native RNG policy, so generated audio cannot be regenerated
bit-exactly; the released embeddings reproduce every embedding-based number via
bash src/run_all_analyses.sh in the code repository, and src/gen/*.py regenerate audio for
any system whose outputs are not redistributed.
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