

FOLLOWUS
Tencent AI Lab, Tencent, Bellevue 98004, USA
Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Yan-min QIAN, E-mail: yanminqian@tencent.com
Received:08 December 2017,
Revised:2018-;1-25,
Published:2018-01
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Yan-min QIAN, Chao WENG, Xuan-kai CHANG, et al. Past review, current progress, and challenges ahead on the cocktail party problem[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(1): 40-63.
Yan-min QIAN, Chao WENG, Xuan-kai CHANG, et al. Past review, current progress, and challenges ahead on the cocktail party problem[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(1): 40-63. DOI: 10.1631/FITEE.1700814.
鸡尾酒会问题即在多人同时说话的场景下追踪并识别某一个特定说话人的语音。在自动语音识别技术大规模推广应用中,鸡尾酒会问题是亟待解决的关键问题之一。本文回顾了在过去20多年中针对鸡尾酒会问题提出的相关技术。主要讨论在鸡尾酒会问题中扮演中心角色的语音分离问题。介绍了以下内容:传统的单通道情况下的技术,如计算听觉场景分析(computation alauditory scene analysis
CASA)、非负矩阵分解(non-negative matrix factorization
NMF)以及生成式模型建模;传统的多通道情况下的技术,如波束成形和多通道盲源分离;一些基于深度学习的最新技术,如深度聚类(deep clustering
DPCL)、深度吸引网络(deep attractor network
DANet)以及排列不变性训练(permutation invariant training
PIT)。此外,介绍了在鸡尾酒会环境下针对改善多说话人语音识别和说话人识别精度的相关技术。笔者认为,利用一个更加强大的模型来有效地开发和利用来自麦克风阵列、声学训练集合以及语言本身的知识非常重要。更好的优化策略和技术的提出会逐步解决鸡尾酒会问题。
The cocktail party problem
i.e.
tracing and recognizing the speech of a specific speaker when multiplespeakers talk simultaneously
is one of the critical problems yet to be solved to enable the wide application ofautomatic speech recognition (ASR) systems. In this overview paper
we review the techniques proposed in thelast two decades in attacking this problem. We focus our discussions on the speech separation problem givenits central role in the cocktail party environment
and describe the conventional single-channel techniques such ascomputational auditory scene analysis (CASA)
non-negative matrix factorization (NMF) and generative models
theconventional multi-channel techniques such as beamforming and multi-channel blind source separation
and the newlydeveloped deep learning-based techniques
such as deep clustering (DPCL)
the deep attractor network (DANet)
andpermutation invariant training (PIT). We also present techniques developed to improve ASR accuracy and speakeridentification in the cocktail party environment. We argue effectively exploiting information in the microphone array
the acoustic training set
and the language itself using a more powerful model. Better optimization objective andtechniques will be the approach to solving the cocktail party problem.
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