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Spark-TTS: semantic/global BiCodec tokens and controllable speech system

Contribution grade

Controllable speech systems · Human-designed research method or resource

Reference score50,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Separated low-rate semantic codes and fixed-length global speaker attributes in BiCodec and integrated them with a Qwen-based synthesis system and annotated VoxBox resource.

Scientific scope

Separated low-rate semantic codes and fixed-length global speaker attributes in BiCodec and integrated them with a Qwen-based synthesis system and annotated VoxBox resource. Inherits speech codecs, FSQ and language models. Disentanglement/attribute control is empirical rather than causal identifiability; dataset-hours and voice-control results do not certify licensing or universal performance. No source media/model executed.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Inherits speech codecs, FSQ and language models. Disentanglement/attribute control is empirical rather than causal identifiability; dataset-hours and voice-control results do not certify licensing or universal performance. No source media/model executed.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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