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FastSpeech: duration-regulated parallel acoustic prediction

Contribution grade

Parallel text-to-speech modeling · Human-designed research method or resource

Reference score130,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Used a feed-forward transformer and predicted phoneme durations/length regulation to generate mel spectrograms in parallel, learning alignment from an autoregressive teacher.

Scientific scope

Used a feed-forward transformer and predicted phoneme durations/length regulation to generate mel spectrograms in parallel, learning alignment from an autoregressive teacher. Inherits transformers and teacher-student learning. Original teacher alignment/distillation and downstream vocoder costs remain; speedup for acoustic prediction is not necessarily equal full-system speedup or a no-skipping theorem.

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 transformers and teacher-student learning. Original teacher alignment/distillation and downstream vocoder costs remain; speedup for acoustic prediction is not necessarily equal full-system speedup or a no-skipping theorem.

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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