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Representation learning for speech emotion recognition is challenging due to labeled data sparsity issue and lack of gold standard references. In addition, there is much variability from input speech signals, human subjective perception of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-13 Haoqi Li , Ming Tu , Jing Huang , Shrikanth Narayanan , Panayiotis Georgiou

Emotional voice conversion (EVC) involves modifying various acoustic characteristics, such as pitch and spectral envelope, to match a desired emotional state while preserving the speaker's identity. Existing EVC methods often rely on text…

Sound · Computer Science 2025-01-22 Hyung-Seok Oh , Sang-Hoon Lee , Deok-Hyeon Cho , Seong-Whan Lee

Generative audio technologies now enable highly realistic voice cloning and real-time voice conversion, increasing the risk of impersonation, fraud, and misinformation in communication channels such as phone and video calls. This study…

Sound · Computer Science 2026-01-09 Prajwal Chinchmalatpure , Suyash Chinchmalatpure , Siddharth Chavan

Singing voice conversion aims to convert singer's voice from source to target without changing singing content. Parallel training data is typically required for the training of singing voice conversion system, that is however not practical…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-04 Junchen Lu , Kun Zhou , Berrak Sisman , Haizhou Li

Non-parallel training is a difficult but essential task for DNN-based speech enhancement methods, for the lack of adequate noisy and paired clean speech corpus in many real scenarios. In this paper, we propose a novel adaptive…

Sound · Computer Science 2021-09-15 Guochen Yu , Yutian Wang , Chengshi Zheng , Hui Wang , Qin Zhang

Previously, we introduced VoiceGrad, a nonparallel voice conversion (VC) technique enabling mel-spectrogram conversion from source to target speakers using a score-based diffusion model. The concept involves training a score network to…

Sound · Computer Science 2025-09-11 Hirokazu Kameoka , Takuhiro Kaneko , Kou Tanaka , Yuto Kondo

This paper proposes a framework for modeling sound change that combines deep learning and iterative learning. Acquisition and transmission of speech is modeled by training generations of Generative Adversarial Networks (GANs) on unannotated…

Computation and Language · Computer Science 2021-09-23 Gašper Beguš

An effective approach for voice conversion (VC) is to disentangle linguistic content from other components in the speech signal. The effectiveness of variational autoencoder (VAE) based VC (VAE-VC), for instance, strongly relies on this…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-09 Wen-Chin Huang , Hao Luo , Hsin-Te Hwang , Chen-Chou Lo , Yu-Huai Peng , Yu Tsao , Hsin-Min Wang

Style voice conversion aims to transform the speaking style of source speech into a desired style while keeping the original speaker's identity. However, previous style voice conversion approaches primarily focus on well-defined domains…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-09 Xinfa Zhu , Lei He , Yujia Xiao , Xi Wang , Xu Tan , Sheng Zhao , Lei Xie

In this paper, we integrate a simple non-parallel voice conversion (VC) system with a WaveNet (WN) vocoder and a proposed collapsed speech suppression technique. The effectiveness of WN as a vocoder for generating high-fidelity speech…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-08 Yi-Chiao Wu , Patrick Lumban Tobing , Kazuhiro Kobayashi , Tomoki Hayashi , Tomoki Toda

Variational autoencoder-based voice conversion (VAE-VC) has the advantage of requiring only pairs of speeches and speaker labels for training. Unlike the majority of the research in VAE-VC which focuses on utilizing auxiliary losses or…

Sound · Computer Science 2021-12-07 Kei Akuzawa , Kotaro Onishi , Keisuke Takiguchi , Kohki Mametani , Koichiro Mori

Generative Adversarial Networks (GANs) have become exceedingly popular in a wide range of data-driven research fields, due in part to their success in image generation. Their ability to generate new samples, often from only a small amount…

Computation and Language · Computer Science 2019-03-19 Thomas Wiest , Nicholas Cummins , Alice Baird , Simone Hantke , Judith Dineley , Björn Schuller

In this paper, we present an open-source software for developing a nonparallel voice conversion (VC) system named crank. Although we have released an open-source VC software based on the Gaussian mixture model named sprocket in the last VC…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-05 Kazuhiro Kobayashi , Wen-Chin Huang , Yi-Chiao Wu , Patrick Lumban Tobing , Tomoki Hayashi , Tomoki Toda

Voice Conversion (VC) aims to modify a speaker's timbre while preserving linguistic content. While recent VC models achieve strong performance, most struggle in real-time streaming scenarios due to high latency, dependence on ASR modules,…

Sound · Computer Science 2025-10-13 Zhao Guo , Ziqian Ning , Guobin Ma , Lei Xie

Thanks to large-scale labeled training data, deep neural networks (DNNs) have obtained remarkable success in many vision and multimedia tasks. However, because of the presence of domain shift, the learned knowledge of the well-trained DNNs…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Sicheng Zhao , Xuanbai Chen , Xiangyu Yue , Chuang Lin , Pengfei Xu , Ravi Krishna , Jufeng Yang , Guiguang Ding , Alberto L. Sangiovanni-Vincentelli , Kurt Keutzer

We present a project that aims to generate images that depict accurate, vivid, and personalized outcomes of climate change using Cycle-Consistent Adversarial Networks (CycleGANs). By training our CycleGAN model on street-view images of…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Victor Schmidt , Alexandra Luccioni , S. Karthik Mukkavilli , Narmada Balasooriya , Kris Sankaran , Jennifer Chayes , Yoshua Bengio

The Emotional Voice Conversion (EVC) aims to convert the discrete emotional state from the source emotion to the target for a given speech utterance while preserving linguistic content. In this paper, we propose regularizing emotion…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-31 Ashishkumar Gudmalwar , Ishan D. Biyani , Nirmesh Shah , Pankaj Wasnik , Rajiv Ratn Shah

This paper proposes voicing-aware conditional discriminators for Parallel WaveGAN-based waveform synthesis systems. In this framework, we adopt a projection-based conditioning method that can significantly improve the discriminator's…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-27 Ryuichi Yamamoto , Eunwoo Song , Min-Jae Hwang , Jae-Min Kim

Mobile and embedded devices are increasingly using microphones and audio-based computational models to infer user context. A major challenge in building systems that combine audio models with commodity microphones is to guarantee their…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-30 Akhil Mathur , Anton Isopoussu , Fahim Kawsar , Nadia Berthouze , Nicholas D. Lane

Cycle-consistent generative adversarial networks (CycleGAN) were successfully applied to speech enhancement (SE) tasks with unpaired noisy-clean training data. The CycleGAN SE system adopted two generators and two discriminators trained…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-07 Wen-Yuan Ting , Syu-Siang Wang , Hsin-Li Chang , Borching Su , Yu Tsao