2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information

2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information
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Paper Detail

Paper IDSPE-44.4
Paper Title IMPROVING RNN TRANSDUCER WITH TARGET SPEAKER EXTRACTION AND NEURAL UNCERTAINTY ESTIMATION
Authors Jiatong Shi, The Johns Hopkins University, United States; Chunlei Zhang, Chao Weng, Tencent AI Lab, United States; Shinji Watanabe, The Johns Hopkins University, United States; Meng Yu, Dong Yu, Tencent AI Lab, United States
SessionSPE-44: Speech Recognition 16: Robust Speech Recognition 2
LocationGather.Town
Session Time:Thursday, 10 June, 16:30 - 17:15
Presentation Time:Thursday, 10 June, 16:30 - 17:15
Presentation Poster
Topic Speech Processing: [SPE-ROBU] Robust Speech Recognition
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract Target-speaker speech recognition aims to recognize target-speaker speech from noisy environments with background noise and interfering speakers. This work presents a joint framework that combines time-domain target-speaker speech extraction and Recurrent Neural Network Transducer (RNN-T). To stabilize the joint-training, we propose a multi-stage training strategy that pre-trains and fine-tunes each module in the system before joint-training. Meanwhile, speaker identity and speech enhancement uncertainty measures are proposed to compensate for residual noise and artifacts from the target speech extraction module. Compared to a recognizer fine-tuned with a target speech extraction model, our experiments show that adding the neural uncertainty module significantly reduces 17% relative Character Error Rate (CER) on multi-speaker signals with background noise. The multi-condition experiments indicate that our method can achieve 9% relative performance gain in the noisy condition while maintaining the performance in the clean condition.