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Dynamic time warping distance (DTW) is a widely used distance measure between time series. The best known algorithms for computing DTW run in near quadratic time, and conditional lower bounds prohibit the existence of significantly faster…

Data Structures and Algorithms · Computer Science 2019-05-27 William Kuszmaul

We propose a singing decomposition system that encodes time-aligned linguistic content, pitch, and source speaker identity via Assem-VC. With decomposed speaker-independent information and the target speaker's embedding, we could synthesize…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-26 Kang-wook Kim , Junhyeok Lee

The present paper describes a singing voice synthesis based on convolutional neural networks (CNNs). Singing voice synthesis systems based on deep neural networks (DNNs) are currently being proposed and are improving the naturalness of…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-26 Kazuhiro Nakamura , Kei Hashimoto , Keiichiro Oura , Yoshihiko Nankaku , Keiichi Tokuda

The control of perceptual voice qualities in a text-to-speech (TTS) system is of interest for applications where unmanipu- lated and manipulated speech probes can serve to illustrate pho- netic concepts that are otherwise difficult to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-10 Frederik Rautenberg , Fritz Seebauer , Jana Wiechmann , Michael Kuhlmann , Petra Wagner , Reinhold Haeb-Umbach

We present a new method for generating plausible counterfactual explanations for time series classification problems. The approach performs gradient-based optimization directly in the input space. To enforce plausibility, we integrate…

Machine Learning · Computer Science 2026-03-10 Marcin Kostrzewa , Krzysztof Galus , Maciej Zięba

Voice conversion refers to transferring speaker identity with well-preserved content. Better disentanglement of speech representations leads to better voice conversion. Recent studies have found that phonetic information from input audio…

Sound · Computer Science 2024-01-19 Yimin Deng , Huaizhen Tang , Xulong Zhang , Ning Cheng , Jing Xiao , Jianzong Wang

Real-time tracking of the position of a musical performance on a musical score, i.e. score following, can be useful in music practice, performance and production. Example applications of such technology include computer-aided accompaniment…

Sound · Computer Science 2022-05-09 Lin Hao Lee

Editing faces in videos is a popular yet challenging aspect of computer vision and graphics, which encompasses several applications including facial attractiveness enhancement, makeup transfer, face replacement, and expression manipulation.…

Computer Vision and Pattern Recognition · Computer Science 2014-08-12 Xiaoyan Li , Dacheng Tao

Singing voice synthesis (SVS) aims to generate natural and expressive singing waveforms from symbolic musical scores. In cVAE-based SVS, however, a mismatch arises because the decoder is trained with latent representations inferred from…

Sound · Computer Science 2026-03-16 Minhyeok Yun , Yong-Hoon Choi

In this paper, we propose a solution for improving the quality of temporal sound localization. We employ a multimodal fusion approach to combine visual and audio features. High-quality visual features are extracted using a state-of-the-art…

Sound · Computer Science 2024-07-03 Yurui Huang , Yang Yang , Shou Chen , Xiangyu Wu , Qingguo Chen , Jianfeng Lu

Recent studies in singing voice synthesis have achieved high-quality results leveraging advances in text-to-speech models based on deep neural networks. One of the main issues in training singing voice synthesis models is that they require…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-15 Soonbeom Choi , Juhan Nam

End-to-End Speech Translation (E2E-ST) is the task of translating source speech directly into target text bypassing the intermediate transcription step. The representation discrepancy between the speech and text modalities has motivated…

Computation and Language · Computer Science 2025-09-24 Abderrahmane Issam , Yusuf Can Semerci , Jan Scholtes , Gerasimos Spanakis

Real-time music tracking systems follow a musical performance and at any time report the current position in a corresponding score. Most existing methods approach this problem exclusively in the audio domain, typically using online time…

Sound · Computer Science 2025-05-09 Silvan Peter , Patricia Hu , Gerhard Widmer

This paper introduces a novel approach for streaming openvocabulary keyword spotting (KWS) with text-based keyword enrollment. For every input frame, the proposed method finds the optimal alignment ending at the frame using connectionist…

Sound · Computer Science 2024-09-27 Sichen Jin , Youngmoon Jung , Seungjin Lee , Jaeyoung Roh , Changwoo Han , Hoonyoung Cho

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

A method of dynamic continuous-wave spectroscopy of coherent population trapping (CPT) resonances using phase modulation of the jump type is developed. The time evolution of the spectroscopic signal is investigated. A method for the…

Dynamic Time Warping (DTW) is a well-known similarity measure for time series. The standard dynamic programming approach to compute the DTW distance of two length-$n$ time series, however, requires~$O(n^2)$ time, which is often too slow for…

Data Structures and Algorithms · Computer Science 2020-04-21 Vincent Froese , Brijnesh Jain , Maciej Rymar , Mathias Weller

We propose an algorithm that is capable of synthesizing high quality target speaker's singing voice given only their normal speech samples. The proposed algorithm first integrate speech and singing synthesis into a unified framework, and…

Sound · Computer Science 2019-12-24 Liqiang Zhang , Chengzhu Yu , Heng Lu , Chao Weng , Yusong Wu , Xiang Xie , Zijin Li , Dong Yu

With the rapid development of neural network architectures and speech processing models, singing voice synthesis with neural networks is becoming the cutting-edge technique of digital music production. In this work, in order to explore how…

Sound · Computer Science 2021-08-29 Dengfeng Ke , Yuxing Lu , Xudong Liu , Yanyan Xu , Jing Sun , Cheng-Hao Cai

Many real-world applications require aligning two temporal sequences, including bioinformatics, handwriting recognition, activity recognition, and human-robot coordination. Dynamic Time Warping (DTW) is a popular alignment method, but can…

Machine Learning · Computer Science 2021-09-21 Sridhar Mahadevan , Anup Rao , Georgios Theocharous , Jennifer Healey