Improving Practical Aspects of End-to-End Multi-Talker Speech Recognition for Online and Offline Scenarios

Fuente: arXiv
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Main Authors: Subramanian, Aswin Shanmugam, Das, Amit, Kanda, Naoyuki, Li, Jinyu, Wang, Xiaofei, Gong, Yifan
Format: Preprint
Published: 2025
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_version_ 1866909651360022528
author Subramanian, Aswin Shanmugam
Das, Amit
Kanda, Naoyuki
Li, Jinyu
Wang, Xiaofei
Gong, Yifan
author_facet Subramanian, Aswin Shanmugam
Das, Amit
Kanda, Naoyuki
Li, Jinyu
Wang, Xiaofei
Gong, Yifan
contents We extend the frameworks of Serialized Output Training (SOT) to address practical needs of both streaming and offline automatic speech recognition (ASR) applications. Our approach focuses on balancing latency and accuracy, catering to real-time captioning and summarization requirements. We propose several key improvements: (1) Leveraging Continuous Speech Separation (CSS) single-channel front-end with end-to-end (E2E) systems for highly overlapping scenarios, challenging the conventional wisdom of E2E versus cascaded setups. The CSS framework improves the accuracy of the ASR system by separating overlapped speech from multiple speakers. (2) Implementing dual models -- Conformer Transducer for streaming and Sequence-to-Sequence for offline -- or alternatively, a two-pass model based on cascaded encoders. (3) Exploring segment-based SOT (segSOT) which is better suited for offline scenarios while also enhancing readability of multi-talker transcriptions.
format Preprint
id arxiv_https___arxiv_org_abs_2506_14204
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Improving Practical Aspects of End-to-End Multi-Talker Speech Recognition for Online and Offline Scenarios
Subramanian, Aswin Shanmugam
Das, Amit
Kanda, Naoyuki
Li, Jinyu
Wang, Xiaofei
Gong, Yifan
Audio and Speech Processing
Computation and Language
Sound
We extend the frameworks of Serialized Output Training (SOT) to address practical needs of both streaming and offline automatic speech recognition (ASR) applications. Our approach focuses on balancing latency and accuracy, catering to real-time captioning and summarization requirements. We propose several key improvements: (1) Leveraging Continuous Speech Separation (CSS) single-channel front-end with end-to-end (E2E) systems for highly overlapping scenarios, challenging the conventional wisdom of E2E versus cascaded setups. The CSS framework improves the accuracy of the ASR system by separating overlapped speech from multiple speakers. (2) Implementing dual models -- Conformer Transducer for streaming and Sequence-to-Sequence for offline -- or alternatively, a two-pass model based on cascaded encoders. (3) Exploring segment-based SOT (segSOT) which is better suited for offline scenarios while also enhancing readability of multi-talker transcriptions.
title Improving Practical Aspects of End-to-End Multi-Talker Speech Recognition for Online and Offline Scenarios
topic Audio and Speech Processing
Computation and Language
Sound
url https://arxiv.org/abs/2506.14204