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State-of-the-art automatic speech recognition (ASR) systems struggle with the lack of data for rare accents. For sufficiently large datasets, neural engines tend to outshine statistical models in most natural language processing problems.…

Sound · Computer Science 2018-07-11 Fedor Kitashov , Elizaveta Svitanko , Debojyoti Dutta

Voice conversion is a task of synthesizing an utterance with target speaker's voice while maintaining linguistic information of the source utterance. While a speaker can produce varying utterances from a single script with different…

Sound · Computer Science 2025-04-17 Soobin Suh , Dabi Ahn , Heewoong Park , Jonghun Park

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

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

Voice conversion is a challenging task which transforms the voice characteristics of a source speaker to a target speaker without changing linguistic content. Recently, there have been many works on many-to-many Voice Conversion (VC) based…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-23 Manh Luong , Viet Anh Tran

This paper evaluates the effectiveness of a Cycle-GAN based voice converter (VC) on four speaker identification (SID) systems and an automated speech recognition (ASR) system for various purposes. Audio samples converted by the VC model are…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-30 Gokce Keskin , Tyler Lee , Cory Stephenson , Oguz H. Elibol

This paper focuses on using voice conversion (VC) to improve the speech intelligibility of surgical patients who have had parts of their articulators removed. Due to the difficulty of data collection, VC without parallel data is highly…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-26 Li-Wei Chen , Hung-Yi Lee , Yu Tsao

Recent works on voice conversion (VC) focus on preserving the rhythm and the intonation as well as the linguistic content. To preserve these features from the source, we decompose current non-parallel VC systems into two encoders and one…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-12 Kang-wook Kim , Seung-won Park , Junhyeok Lee , Myun-chul Joe

Voice conversion (VC) is a task that transforms voice from target audio to source without losing linguistic contents, it is challenging especially when source and target speakers are unseen during training (zero-shot VC). Previous…

Sound · Computer Science 2021-04-14 Shijun Wang , Damian Borth

Voice Conversion (VC) is a technique that aims to transform the non-linguistic information of a source utterance to change the perceived identity of the speaker. While there is a rich literature on VC, most proposed methods are trained and…

Voice conversion (VC) consists of digitally altering the voice of an individual to manipulate part of its content, primarily its identity, while maintaining the rest unchanged. Research in neural VC has accomplished considerable…

Sound · Computer Science 2021-07-28 Laurent Benaroya , Nicolas Obin , Axel Roebel

Transformer-based models have been widely adopted for sentiment analysis tasks due to their exceptional ability to capture contextual information. However, these methods often exhibit suboptimal accuracy in certain scenarios. By analyzing…

Artificial Intelligence · Computer Science 2025-12-25 Yawei Liu

Advancements in AI-driven speech-based applications have transformed diverse industries ranging from healthcare to customer service. However, the increasing prevalence of non-native accented speech in global interactions poses significant…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-29 Gowtham Premananth , Vinith Kugathasan , Carol Espy-Wilson

Building cross-lingual voice conversion (VC) systems for multiple speakers and multiple languages has been a challenging task for a long time. This paper describes a parallel non-autoregressive network to achieve bilingual and code-switched…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-23 Yaogen Yang , Haozhe Zhang , Xiaoyi Qin , Shanshan Liang , Huahua Cui , Mingyang Xu , Ming Li

In this paper, we propose a novel voice conversion strategy to resolve the mismatch between the training and conversion scenarios when parallel speech corpus is unavailable for training. Based on auto-encoder and disentanglement frameworks,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-05 Yoohwan Kwon , Soo-Whan Chung , Hee-Soo Heo , Hong-Goo Kang

This paper presents a method for end-to-end cross-lingual text-to-speech (TTS) which aims to preserve the target language's pronunciation regardless of the original speaker's language. The model used is based on a non-attentive Tacotron…

Audio Word2Vec offers vector representations of fixed dimensionality for variable-length audio segments using Sequence-to-sequence Autoencoder (SA). These vector representations are shown to describe the sequential phonetic structures of…

Computation and Language · Computer Science 2018-02-20 Chia-Hao Shen , Janet Y. Sung , Hung-Yi Lee

This paper proposes a voice conversion (VC) method using sequence-to-sequence (seq2seq or S2S) learning, which flexibly converts not only the voice characteristics but also the pitch contour and duration of input speech. The proposed…

Sound · Computer Science 2020-10-08 Hirokazu Kameoka , Kou Tanaka , Damian Kwasny , Takuhiro Kaneko , Nobukatsu Hojo

Voice conversion is the task to transform voice characteristics of source speech while preserving content information. Nowadays, self-supervised representation learning models are increasingly utilized in content extraction. However, in…

Sound · Computer Science 2024-05-02 Yimin Deng , Jianzong Wang , Xulong Zhang , Ning Cheng , Jing Xiao

Non-autoregressive (non-AR) sequence-to-seqeunce (seq2seq) models for voice conversion (VC) is attractive in its ability to effectively model the temporal structure while enjoying boosted intelligibility and fast inference thanks to non-AR…

Sound · Computer Science 2023-09-18 Wen-Chin Huang , Kazuhiro Kobayashi , Tomoki Toda