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Accent Conversion (AC) seeks to change the accent of speech from one (source) to another (target) while preserving the speech content and speaker identity. However, many AC approaches rely on source-target parallel speech data. We propose a…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-24 Yi Zhou , Zhizheng Wu , Mingyang Zhang , Xiaohai Tian , Haizhou Li

Previous approaches on accent conversion (AC) mainly aimed at making non-native speech sound more native while maintaining the original content and speaker identity. However, non-native speakers sometimes have pronunciation issues, which…

Sound · Computer Science 2025-03-05 Tuan Nam Nguyen , Seymanur Akti , Ngoc Quan Pham , Alexander Waibel

Accent conversion aims to convert the accent of a source speech to a target accent, meanwhile preserving the speaker's identity. This paper introduces a novel non-autoregressive framework for accent conversion that learns accent-agnostic…

Computation and Language · Computer Science 2024-01-09 Xi Chen , Jiakun Pei , Liumeng Xue , Mingyang Zhang

Accent conversion (AC) transforms a non-native speaker's accent into a native accent while maintaining the speaker's voice timbre. In this paper, we propose approaches to improving accent conversion applicability, as well as quality. First…

Computation and Language · Computer Science 2020-05-20 Wenjie Li , Benlai Tang , Xiang Yin , Yushi Zhao , Wei Li , Kang Wang , Hao Huang , Yuxuan Wang , Zejun Ma

We propose a first streaming accent conversion (AC) model that transforms non-native speech into a native-like accent while preserving speaker identity, prosody and improving pronunciation. Our approach enables stream processing by…

Computation and Language · Computer Science 2025-06-23 Tuan-Nam Nguyen , Ngoc-Quan Pham , Seymanur Akti , Alexander Waibel

Most people who have tried to learn a foreign language would have experienced difficulties understanding or speaking with a native speaker's accent. For native speakers, understanding or speaking a new accent is likewise a difficult task.…

Sound · Computer Science 2023-10-17 Mumin Jin , Prashant Serai , Jilong Wu , Andros Tjandra , Vimal Manohar , Qing He

In accented voice conversion or accent conversion, we seek to convert the accent in speech from one another while preserving speaker identity and semantic content. In this study, we formulate a novel method for creating multi-accented…

Sound · Computer Science 2025-01-13 Sho Inoue , Shuai Wang , Wanxing Wang , Pengcheng Zhu , Mengxiao Bi , Haizhou Li

The goal of accent conversion (AC) is to convert the accent of speech into the target accent while preserving the content and speaker identity. AC enables a variety of applications, such as language learning, speech content creation, and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-11 Dongya Jia , Qiao Tian , Kainan Peng , Jiaxin Li , Yuanzhe Chen , Mingbo Ma , Yuping Wang , Yuxuan Wang

This paper proposes an interesting voice and accent joint conversion approach, which can convert an arbitrary source speaker's voice to a target speaker with non-native accent. This problem is challenging as each target speaker only has…

Sound · Computer Science 2020-11-18 Zhichao Wang , Wenshuo Ge , Xiong Wang , Shan Yang , Wendong Gan , Haitao Chen , Hai Li , Lei Xie , Xiulin Li

Accent normalization converts foreign-accented speech into native-like speech while preserving speaker identity. We propose a novel pipeline using self-supervised discrete tokens and non-parallel training data. The system extracts tokens…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-24 Qibing Bai , Sho Inoue , Shuai Wang , Zhongjie Jiang , Yannan Wang , Haizhou Li

Accent is an integral part of society, reflecting multiculturalism and shaping how individuals express identity. The majority of English speakers are non-native (L2) speakers, yet current Text-To-Speech (TTS) systems primarily model…

Computation and Language · Computer Science 2026-03-10 Thanathai Lertpetchpun , Thanapat Trachu , Jihwan Lee , Tiantian Feng , Dani Byrd , Shrikanth Narayanan

Foreign accent conversion (FAC) is a special application of voice conversion (VC) which aims to convert the accented speech of a non-native speaker to a native-sounding speech with the same speaker identity. FAC is difficult since the…

Sound · Computer Science 2023-09-06 Wen-Chin Huang , Tomoki Toda

With rapid globalization, the need to build inclusive and representative speech technology cannot be overstated. Accent is an important aspect of speech that needs to be taken into consideration while building inclusive speech synthesizers.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-01 Jan Melechovsky , Ambuj Mehrish , Berrak Sisman , Dorien Herremans

Automatic accent identification (AID) remains a challenging task due to the complex variability of accents, the entanglement of accent cues with speaker traits, and the scarcity of reliable accentlabelled data. To address these challenges,…

Signal Processing · Electrical Eng. & Systems 2026-04-29 Rayane Bakari , Olivier Le Blouch , Nicolas Gengembre , Nicholas Evans

The awareness for biased ASR datasets or models has increased notably in recent years. Even for English, despite a vast amount of available training data, systems perform worse for non-native speakers. In this work, we improve an…

Computation and Language · Computer Science 2023-03-03 Philipp Klumpp , Pooja Chitkara , Leda Sarı , Prashant Serai , Jilong Wu , Irina-Elena Veliche , Rongqing Huang , Qing He

Conversion of non-native accented speech to native (American) English has a wide range of applications such as improving intelligibility of non-native speech. Previous work on this domain has used phonetic posteriograms as the target speech…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-11 Yashish M. Siriwardena , Nathan Swedlow , Audrey Howard , Evan Gitterman , Dan Darcy , Carol Espy-Wilson , Andrea Fanelli

Current accent conversion (AC) systems do not disentangle the two main sources of non-native accent: segmental and prosodic characteristics. Being able to manipulate a non-native speaker's segmental and/or prosodic channels independently is…

Computation and Language · Computer Science 2024-08-21 Waris Quamer , Ricardo Gutierrez-Osuna

Low resource of parallel data is the key challenge of accent conversion(AC) problem in which both the pronunciation units and prosody pattern need to be converted. We propose a two-stage generative framework "convert-and-speak" in which the…

Sound · Computer Science 2024-08-23 Zhijun Jia , Huaying Xue , Xiulian Peng , Yan Lu

Accent transfer aims to transfer an accent from a source speaker to synthetic speech in the target speaker's voice. The main challenge is how to effectively disentangle speaker timbre and accent which are entangled in speech. This paper…

Sound · Computer Science 2024-01-01 Linhan Ma , Yongmao Zhang , Xinfa Zhu , Yi Lei , Ziqian Ning , Pengcheng Zhu , Lei Xie

Accent plays a significant role in speech communication, influencing one's capability to understand as well as conveying a person's identity. This paper introduces a novel and efficient framework for accented Text-to-Speech (TTS) synthesis…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-01 Jan Melechovsky , Ambuj Mehrish , Berrak Sisman , Dorien Herremans
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