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Code-switching (CS) phenomenon occurs when words or phrases from different languages are alternated in a single sentence. Due to data scarcity, building an effective CS Automatic Speech Recognition (ASR) system remains challenging. In this…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-23 Yu Xi , Wen Ding , Kai Yu , Junjie Lai

Code-switching poses a number of challenges and opportunities for multilingual automatic speech recognition. In this paper, we focus on the question of robust and fair evaluation metrics. To that end, we develop a reference benchmark data…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-30 Injy Hamed , Amir Hussein , Oumnia Chellah , Shammur Chowdhury , Hamdy Mubarak , Sunayana Sitaram , Nizar Habash , Ahmed Ali

Conversational bilingual speech encompasses three types of utterances: two purely monolingual types and one intra-sententially code-switched type. In this work, we propose a general framework to jointly model the likelihoods of the…

Computation and Language · Computer Science 2021-12-01 Brian Yan , Chunlei Zhang , Meng Yu , Shi-Xiong Zhang , Siddharth Dalmia , Dan Berrebbi , Chao Weng , Shinji Watanabe , Dong Yu

Code-switching is a commonly observed communicative phenomenon denoting a shift from one language to another within the same speech exchange. The analysis of code-switched data often becomes an assiduous task, owing to the limited…

Computation and Language · Computer Science 2020-11-04 Tanvi Dadu , Kartikey Pant

Cued Speech (CS) is a communication system developed for deaf people, which exploits hand cues to complement speechreading at the phonetic level. Currently, it is estimated that CS has been adapted to over 60 languages; however, no official…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-06 Liu Li , Feng Gang

Recent state-of-the-art neural text-to-speech (TTS) synthesis models have dramatically improved intelligibility and naturalness of generated speech from text. However, building a good bilingual or code-switched TTS for a particular voice is…

Sound · Computer Science 2020-10-19 Shengkui Zhao , Trung Hieu Nguyen , Hao Wang , Bin Ma

Recently, end-to-end models have become a popular approach as an alternative to traditional hybrid models in automatic speech recognition (ASR). The multi-speaker speech separation and recognition task is a central task in cocktail party…

Computation and Language · Computer Science 2018-11-07 Xuankai Chang , Yanmin Qian , Kai Yu , Shinji Watanabe

Accurate alignment between languages is fundamental for improving cross-lingual pre-trained language models (XLMs). Motivated by the natural phenomenon of code-switching (CS) in multilingual speakers, CS has been used as an effective data…

Computation and Language · Computer Science 2023-02-14 Chenxi Whitehouse , Fenia Christopoulou , Ignacio Iacobacci

Dual-encoder structure successfully utilizes two language-specific encoders (LSEs) for code-switching speech recognition. Because LSEs are initialized by two pre-trained language-specific models (LSMs), the dual-encoder structure can…

Computation and Language · Computer Science 2022-07-13 Tongtong Song , Qiang Xu , Meng Ge , Longbiao Wang , Hao Shi , Yongjie Lv , Yuqin Lin , Jianwu Dang

Intra-sentential code-switching (CS) refers to the alternation between languages that happens within a single utterance and is a significant challenge for Automatic Speech Recognition (ASR) systems. For example, when a Vietnamese speaker…

Computation and Language · Computer Science 2025-01-14 The Chuong Chu , Vu Tuan Dat Pham , Kien Dao , Hoang Nguyen , Quoc Hung Truong

Code-switching describes the practice of using more than one language in the same sentence. In this study, we investigate how to optimize a neural transducer based bilingual automatic speech recognition (ASR) model for code-switching…

Recently, there has been a growing interest in end-to-end speech recognition that directly transcribes speech to text without any predefined alignments. In this paper, we explore the use of attention-based encoder-decoder model for Mandarin…

Computation and Language · Computer Science 2018-02-14 Changhao Shan , Junbo Zhang , Yujun Wang , Lei Xie

Code-Switching (CS) multilingual Automatic Speech Recognition (ASR) models can transcribe speech containing two or more alternating languages during a conversation. This paper proposes (1) a new method for creating code-switching ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-19 Kunal Dhawan , Dima Rekesh , Boris Ginsburg

Code-switching is a common phenomenon among multilingual speakers, where alternation between two or more languages occurs within the context of a single conversation. While multilingual humans can seamlessly switch back and forth between…

Computation and Language · Computer Science 2022-10-12 Thamme Gowda , Mozhdeh Gheini , Jonathan May

Despite achieving impressive results on standard benchmarks, large foundational models still struggle against code-switching test cases. When data scarcity cannot be used as the usual justification for poor performance, the reason may lie…

Computation and Language · Computer Science 2025-10-22 Enes Yavuz Ugan , Ngoc-Quan Pham , Alexander Waibel

The prevalence of the powerful multilingual models, such as Whisper, has significantly advanced the researches on speech recognition. However, these models often struggle with handling the code-switching setting, which is essential in…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-15 Bobbi Aditya , Mahdin Rohmatillah , Liang-Hsuan Tai , Jen-Tzung Chien

Training multilingual automatic speech recognition (ASR) systems is challenging because acoustic and lexical information is typically language specific. Training multilingual system for Indic languages is even more tougher due to lack of…

Computation and Language · Computer Science 2022-06-14 Harveen Singh Chadha , Priyanshi Shah , Ankur Dhuriya , Neeraj Chhimwal , Anirudh Gupta , Vivek Raghavan

Code-switching, the alternation of languages within a conversation or utterance, is a common communicative phenomenon that occurs in multilingual communities across the world. This survey reviews computational approaches for code-switched…

Computation and Language · Computer Science 2020-07-24 Sunayana Sitaram , Khyathi Raghavi Chandu , Sai Krishna Rallabandi , Alan W Black

Recently, there has been significant progress made in Automatic Speech Recognition (ASR) of code-switched speech, leading to gains in accuracy on code-switched datasets in many language pairs. Code-switched speech co-occurs with monolingual…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-02 Sanket Shah , Basil Abraham , Gurunath Reddy M , Sunayana Sitaram , Vikas Joshi

Code-switching, or switching between languages, occurs for many reasons and has important linguistic, sociological, and cultural implications. Multilingual speakers code-switch for a variety of purposes, such as expressing emotions,…

Computation and Language · Computer Science 2022-12-19 Ritu Belani , Jeffrey Flanigan