公开(公告)号：US20230326461A1

公开(公告)日：2023-10-12

申请号：US18182925

申请日：2023-03-13

Applicant: Google LLC

Inventor： Shaojin Ding ,  Yangzhang He ,  Xin Wang ,  Weiran Wang ,  Trevor Strohman ,  Tara N. Sainath ,  Rohit Parkash Prabhavalkar ,  Robert David ,  Rina Panigrahy ,  Rami Botros ,  Qiao Liang ,  Ian Mcgraw ,  Ding Zhao ,  Dongseong Hwang

IPC: G10L15/32 ,  G10L15/16 ,  G10L15/22

CPC classification number: G10L15/32 ,  G10L15/16 ,  G10L15/22 ,  G10L2015/223

Abstract: An automated speech recognition (ASR) model includes a first encoder, a first encoder, a second encoder, and a second decoder. The first encoder receives, as input, a sequence of acoustic frames, and generates, at each of a plurality of output steps, a first higher order feature representation for a corresponding acoustic frame in the sequence of acoustic frames. The first decoder receives, as input, the first higher order feature representation generated by the first encoder, and generates a first probability distribution over possible speech recognition hypotheses. The second encoder receives, as input, the first higher order feature representation generated by the first encoder, and generates a second higher order feature representation for a corresponding first higher order feature frame. The second decoder receives, as input, the second higher order feature representation generated by the second encoder, and generates a second probability distribution over possible speech recognition hypotheses.