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Despite recent progress in generative adversarial network (GAN)-based vocoders, where the model generates raw waveform conditioned on acoustic features, it is challenging to synthesize high-fidelity audio for numerous speakers across…

Sound · Computer Science 2023-02-17 Sang-gil Lee , Wei Ping , Boris Ginsburg , Bryan Catanzaro , Sungroh Yoon

Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse natural language processing tasks. However, their extensive memory requirements, particularly due to KV cache growth during long-text understanding and…

Computation and Language · Computer Science 2025-10-14 Haoqi Yang , Yao Yao , Zuchao Li , Baoyuan Qi , Guoming Liu , Hai Zhao

In this study, we propose a simple and efficient Non-Autoregressive (NAR) text-to-speech (TTS) system based on diffusion, named SimpleSpeech. Its simpleness shows in three aspects: (1) It can be trained on the speech-only dataset, without…

Sound · Computer Science 2024-06-17 Dongchao Yang , Dingdong Wang , Haohan Guo , Xueyuan Chen , Xixin Wu , Helen Meng

Discrete speech tokens offer significant advantages for storage and language model integration, but their application in speech emotion recognition (SER) is limited by paralinguistic information loss during quantization. This paper presents…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Esther Sun , Abinay Reddy Naini , Carlos Busso

Speech enhancement has seen great improvement in recent years mainly through contributions in denoising, speaker separation, and dereverberation methods that mostly deal with environmental effects on vocal audio. To enhance speech beyond…

Sound · Computer Science 2021-02-02 Adam Polyak , Lior Wolf , Yossi Adi , Ori Kabeli , Yaniv Taigman

Talking head video compression has advanced with neural rendering and keypoint-based methods, but challenges remain, especially at low bit rates, including handling large head movements, suboptimal lip synchronization, and distorted facial…

Image and Video Processing · Electrical Eng. & Systems 2025-06-17 Riku Takahashi , Ryugo Morita , Jinjia Zhou

Recently, neural networks have proven to be effective in performing speech coding task at low bitrates. However, under-utilization of intra-frame correlations and the error of quantizer specifically degrade the reconstructed audio quality.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-05 Linping Xu , Jiawei Jiang , Dejun Zhang , Xianjun Xia , Li Chen , Yijian Xiao , Piao Ding , Shenyi Song , Sixing Yin , Ferdous Sohel

Methods for automatically assessing speech quality in real world environments are critical for developing robust human language technologies and assistive devices. Behavioral ratings provided by human raters (e.g., mean opinion scores; MOS)…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-09 Mattson Ogg , Caitlyn Bishop , Han Yi , Sarah Robinson

Continuous speech can be converted into a discrete sequence by deriving discrete units from the hidden features of self-supervised learned (SSL) speech models. Although SSL models are becoming larger and trained on more data, they are often…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-06 Jakob Poncelet , Yujun Wang , Hugo Van hamme

While recent neural sequence-to-sequence models have greatly improved the quality of speech synthesis, there has not been a system capable of fast training, fast inference and high-quality audio synthesis at the same time. We propose a…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Jan Vainer , Ondřej Dušek

Neural audio codecs are widely used as tokenizers for spoken language models, but they are optimized for waveform reconstruction rather than autoregressive prediction. This mismatch injects acoustically driven uncertainty into the discrete…

Sound · Computer Science 2026-04-21 Ho-Lam Chung , Yiming Chen , Hung-yi Lee

Discrete tokens extracted provide efficient and domain adaptable speech features. Their application to disordered speech that exhibits articulation imprecision and large mismatch against normal voice remains unexplored. To improve their…

This paper presents an end-to-end text-to-speech system with low latency on a CPU, suitable for real-time applications. The system is composed of an autoregressive attention-based sequence-to-sequence acoustic model and the LPCNet vocoder…

Although Multimodal Large Language Models (MLLMs) have demonstrated remarkable capabilities in vision, language, and video understanding tasks, scaling them to long-form speech remains a critical bottleneck due to the explosive growth of…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-03 Junseok Lee , Sangyong Lee , Chang-Jae Chun

While diffusion and autoregressive (AR) models have significantly advanced generative modeling, they each present distinct limitations. AR models, which rely on causal attention, cannot exploit future context and suffer from slow generation…

Sound · Computer Science 2025-08-04 Yanqing Liu , Ruiqing Xue , Chong Zhang , Yufei Liu , Gang Wang , Bohan Li , Yao Qian , Lei He , Shujie Liu , Sheng Zhao

Language models require tokenized inputs. However, tokenization strategies for continuous data like audio and vision are often based on simple heuristics such as fixed sized convolutions or discrete clustering, which do not necessarily…

Computation and Language · Computer Science 2024-10-08 Alan Baade , Puyuan Peng , David Harwath

Deep learning based single-channel speech enhancement tries to train a neural network model for the prediction of clean speech signal. There are a variety of popular network structures for single-channel speech enhancement, such as TCNN,…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-04 Xupeng Jia , Dongmei Li

Existing speech semantic communication systems mainly based on Joint Source-Channel Coding (JSCC) architectures have demonstrated impressive performance, but their effectiveness remains limited by model structures specifically designed for…

Sound · Computer Science 2025-12-05 Yun Tian , Zhijin Qin , Guocheng Lv , Ye Jin , Kaibin Huang , Zhu Han

Despite progress in audio classification, a generalization gap remains between speech and other sound domains, such as environmental sounds and music. Models trained for speech tasks often fail to perform well on environmental or musical…

Sound · Computer Science 2024-06-14 Heinrich Dinkel , Zhiyong Yan , Yongqing Wang , Junbo Zhang , Yujun Wang , Bin Wang

Speaker anonymization aims to conceal cues to speaker identity while preserving linguistic content. Current machine learning based approaches require substantial computational resources, hindering real-time streaming applications. To…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-04 Waris Quamer , Ricardo Gutierrez-Osuna