[paper+code] Conformer and Zipformer for ASR

Efficient conformer-based speech recognition with linear attention

Paper: https://arxiv.org/pdf/2104.06865

code: https://github.com/Alex2135/ASR-proto?tab=readme-ov-file

Zipformer: A faster and better encoder for automatic speech recognition

https://arxiv.org/abs/2310.11230

code: https://github.com/k2-fsa/icefall