Bridge, Distill, Refine: High-Fidelity One-Step Generation for Multi-Bandwidth Speech Extension

Manuscript under review

Zhiqi Ai, Xu Shen, Mou Wang, Yongjin Zhou, Shugong Xu

One-step, multi-bandwidth speech extension through a cutoff-aware flow bridge, progressive consistency distillation, and adversarial refinement.

Public preprint: arXiv:2610.22910, submitted on October 16, 2026. Manuscript under review.