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In a typical voice conversion system, vocoder is commonly used for speech-to-features analysis and features-to-speech synthesis. However, vocoder can be a source of speech quality degradation. This paper presents a vocoder-free voice…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-18 Xiaohai Tian , Eng Siong Chng , Haizhou Li

Recent advances in speech synthesis suggest that limitations such as the lossy nature of the amplitude spectrum with minimum phase approximation and the over-smoothing effect in acoustic modeling can be overcome by using advanced machine…

Audio and Speech Processing · Electrical Eng. & Systems 2018-04-10 Xin Wang , Jaime Lorenzo-Trueba , Shinji Takaki , Lauri Juvela , Junichi Yamagishi

We present the Open ASR Leaderboard, a reproducible benchmarking platform with community contributions from academia and industry. It compares 86 open-source and proprietary systems across 12 datasets, with English short- and long-form and…

Voice disorders affect patients profoundly, and acoustic tools can potentially measure voice function objectively. Nonetheless, existing tools are limited to analysing voices displaying near periodicity, and do not account for inherent…

Cellular Automata and Lattice Gases · Physics 2019-10-23 Max A Little , Patrick E McSharry , Stephen J Roberts , Declan AE Costello , Irene M Moroz

Acoustic-to-articulatory inversion (AAI) methods estimate articulatory movements from the acoustic speech signal, which can be useful in several tasks such as speech recognition, synthesis, talking heads and language tutoring. Most earlier…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-06 Tamás Gábor Csapó

Audio super-resolution aims to recover missing high-frequency details from bandwidth-limited low-resolution audio, thereby improving the naturalness and perceptual quality of the reconstructed signal. However, most existing methods directly…

Sound · Computer Science 2026-04-13 Fei Liu , Yang Ai , Hui-Peng Du , Yu-Fei Shi , Zhen-Hua Ling

Accurate and reliable identification of the relative transfer functions (RTFs) between microphones with respect to a desired source is an essential component in the design of microphone array beamformers, specifically when applying the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-19 Daniel Levi , Amit Sofer , Sharon Gannot

We present a model for predicting articulatory features from surface electromyography (EMG) signals during speech production. The proposed model integrates convolutional layers and a Transformer block, followed by separate predictors for…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-30 Jihwan Lee , Kevin Huang , Kleanthis Avramidis , Simon Pistrosch , Monica Gonzalez-Machorro , Yoonjeong Lee , Björn Schuller , Louis Goldstein , Shrikanth Narayanan

Learning robust speaker representations under noisy conditions presents significant challenges, which requires careful handling of both discriminative and noise-invariant properties. In this work, we proposed an anchor-based stage-wise…

Sound · Computer Science 2026-01-21 Bin Gu , Lipeng Dai , Huipeng Du , Haitao Zhao , Jibo Wei

Several established parameters and metrics have been used to characterize the acoustics of a room. The most important are the Direct-To-Reverberant Ratio (DRR), the Reverberation Time (T60) and the reflection coefficient. The acoustic…

Sound · Computer Science 2015-10-05 James Eaton , Nikolay D. Gaubitch , Alastair H. Moore , Patrick A. Naylor

This work presents a novel technique that performs both orientation and distance localization of a sound source in a three-dimensional (3D) space using only the interaural time difference (ITD) cue, generated by a newly-developed…

Sound · Computer Science 2018-04-11 Deepak Gala , Nathan Lindsay , Liang Sun

Traditional clinical approaches for assessing nasality, such as nasopharyngoscopy and nasometry, involve unpleasant experiences and are problematic for children. Speech Inversion (SI), a noninvasive technique, offers a promising alternative…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-12 Saba Tabatabaee , Suzanne Boyce , Liran Oren , Mark Tiede , Carol Espy-Wilson

We propose a speech enhancement system that combines speaker-agnostic speech restoration with voice conversion (VC) to obtain a studio-level quality speech signal. While voice conversion models are typically used to change speaker…

Sound · Computer Science 2025-05-22 Kyungguen Byun , Jason Filos , Erik Visser , Sunkuk Moon

Generative Adversarial Network (GAN) based vocoders are superior in both inference speed and synthesis quality when reconstructing an audible waveform from an acoustic representation. This study focuses on improving the discriminator for…

Sound · Computer Science 2024-04-29 Yicheng Gu , Xueyao Zhang , Liumeng Xue , Haizhou Li , Zhizheng Wu

Adversarial waveform generation has been a popular approach as the backend of singing voice conversion (SVC) to generate high-quality singing audio. However, the instability of GAN also leads to other problems, such as pitch jitters and U/V…

Sound · Computer Science 2022-01-26 Haohan Guo , Zhiping Zhou , Fanbo Meng , Kai Liu

Today, data collection has improved in various areas, and the medical domain is no exception. Auscultation, as an important diagnostic technique for physicians, due to the progress and availability of digital stethoscopes, lends itself well…

This paper is concerned with the inverse acoustic scattering problems of reconstructing time-dependent multiple point sources and sources on a curve $L$ of the form $\lambda(t)\tau(x)\delta_L(x)$. A direct sampling method with a novel…

Numerical Analysis · Mathematics 2023-09-07 Jiaru Wang , Bo Chen , Qingqing Yu , Yao Sun

This paper presents Non-Attentive Tacotron based on the Tacotron 2 text-to-speech model, replacing the attention mechanism with an explicit duration predictor. This improves robustness significantly as measured by unaligned duration ratio…

Sound · Computer Science 2021-05-12 Jonathan Shen , Ye Jia , Mike Chrzanowski , Yu Zhang , Isaac Elias , Heiga Zen , Yonghui Wu

End-to-end models for robust automatic speech recognition (ASR) have not been sufficiently well-explored in prior work. With end-to-end models, one could choose to preprocess the input speech using speech enhancement techniques and train…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Archiki Prasad , Preethi Jyothi , Rajbabu Velmurugan

We study an efficient dynamic blind source separation algorithm of convolutive sound mixtures based on updating statistical information in the frequency domain, andminimizing the support of time domain demixing filters by a weighted least…

Statistics Theory · Mathematics 2007-05-23 Jie Liu , Jack Xin , Yingyong Qi