Search Results for author: Yi Lei

Found 12 papers, 0 papers with code

Boosting Multi-Speaker Expressive Speech Synthesis with Semi-supervised Contrastive Learning

no code implementations26 Oct 2023 Xinfa Zhu, Yuke Li, Yi Lei, Ning Jiang, Guoqing Zhao, Lei Xie

This paper aims to build a multi-speaker expressive TTS system, synthesizing a target speaker's speech with multiple styles and emotions.

Contrastive Learning Expressive Speech Synthesis

PromptVC: Flexible Stylistic Voice Conversion in Latent Space Driven by Natural Language Prompts

no code implementations17 Sep 2023 Jixun Yao, Yuguang Yang, Yi Lei, Ziqian Ning, Yanni Hu, Yu Pan, JingJing Yin, Hongbin Zhou, Heng Lu, Lei Xie

In this study, we propose PromptVC, a novel style voice conversion approach that employs a latent diffusion model to generate a style vector driven by natural language prompts.

Voice Conversion

On the Performance of Multidimensional Constellation Shaping for Linear and Nonlinear Optical Fiber Channel

no code implementations17 Aug 2023 Bin Chen, Zhiwei Liang, Shen Li, Yi Lei, Gabriele Liga, Alex Alvarado

Multidimensional constellation shaping of up to 32 dimensions with different spectral efficiencies are compared through AWGN and fiber-optic simulations.

METTS: Multilingual Emotional Text-to-Speech by Cross-speaker and Cross-lingual Emotion Transfer

no code implementations29 Jul 2023 Xinfa Zhu, Yi Lei, Tao Li, Yongmao Zhang, Hongbin Zhou, Heng Lu, Lei Xie

However, such data-efficient approaches have ignored synthesizing emotional aspects of speech due to the challenges of cross-speaker cross-lingual emotion transfer - the heavy entanglement of speaker timbre, emotion, and language factors in the speech signal will make a system produce cross-lingual synthetic speech with an undesired foreign accent and weak emotion expressiveness.

Disentanglement Quantization +1

Analytical Model of Nonlinear Fiber Propagation for General Dual-Polarization Four-Dimensional Modulation Format

no code implementations14 Feb 2023 Zhiwei Liang, Bin Chen, Yi Lei, Gabriele Liga, Alex Alvarado

As an application of our model, we further study the effects of signal-noise interactions in long-haul transmission via the proposed model.

Multi-Speaker Expressive Speech Synthesis via Multiple Factors Decoupling

no code implementations19 Nov 2022 Xinfa Zhu, Yi Lei, Kun Song, Yongmao Zhang, Tao Li, Lei Xie

This paper aims to synthesize the target speaker's speech with desired speaking style and emotion by transferring the style and emotion from reference speech recorded by other speakers.

Expressive Speech Synthesis

Preserving background sound in noise-robust voice conversion via multi-task learning

no code implementations6 Nov 2022 Jixun Yao, Yi Lei, Qing Wang, Pengcheng Guo, Ziqian Ning, Lei Xie, Hai Li, Junhui Liu, Danming Xie

Background sound is an informative form of art that is helpful in providing a more immersive experience in real-application voice conversion (VC) scenarios.

Multi-Task Learning Voice Conversion

Distinguishable Speaker Anonymization based on Formant and Fundamental Frequency Scaling

no code implementations6 Nov 2022 Jixun Yao, Qing Wang, Yi Lei, Pengcheng Guo, Lei Xie, Namin Wang, Jie Liu

By directly scaling the formant and F0, the speaker distinguishability degradation of the anonymized speech caused by the introduction of other speakers is prevented.

Speaker Verification

End-to-End Voice Conversion with Information Perturbation

no code implementations15 Jun 2022 Qicong Xie, Shan Yang, Yi Lei, Lei Xie, Dan Su

The ideal goal of voice conversion is to convert the source speaker's speech to sound naturally like the target speaker while maintaining the linguistic content and the prosody of the source speech.

Voice Conversion

Analytical SNR Prediction in Long-Haul Optical Transmission using General Dual-Polarization 4D Formats

no code implementations2 Jun 2022 Zhiwei Liang, Bin Chen, Yi Lei, Gabriele Liga, Alex Alvarado

Nonlinear interference models for dual-polarization 4D (DP-4D) modulation have only been used so far to predict signal-signal nonlinear interference.

Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems

no code implementations23 Dec 2021 Bin Chen, Gabriele Liga, Yi Lei, Wei Ling, Zhengyan Huan, Xuwei Xue, Alex Alvarado

We review the design of multidimensional modulations by maximizing generalized mutual information and compare the maximum transmission reach of recently introduced 4D formats.

Low-Complexity Geometrical Shaping for 4D Modulation Formats via Amplitude Coding

no code implementations29 Oct 2021 Bin Chen, Wei Ling, Yunus Can Gültekin, Yi Lei, Chigo Okonkwo, Alex Alvarado

Signal shaping is vital to approach Shannon's capacity, yet it is challenging to implement at very high speeds.

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