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Modern speech synthesis systems have improved significantly, with synthetic speech being indistinguishable from real speech. However, efficient and holistic evaluation of synthetic speech still remains a significant challenge. Human…

Computation and Language · Computer Science 2023-10-03 Dareen Alharthi , Roshan Sharma , Hira Dhamyal , Soumi Maiti , Bhiksha Raj , Rita Singh

We aim to characterize how different speakers contribute to the perceived output quality of multi-speaker Text-to-Speech (TTS) synthesis. We automatically rate the quality of TTS using a neural network (NN) trained on human mean opinion…

Computation and Language · Computer Science 2020-04-28 Jennifer Williams , Joanna Rownicka , Pilar Oplustil , Simon King

Hard-parameter sharing is a common strategy to train a single model jointly across diverse tasks. However, this often leads to task interference, impeding overall model performance. To address the issue, we propose a simple yet effective…

Computation and Language · Computer Science 2025-08-15 Hojun Jin , Eunsoo Hong , Ziwon Hyung , Sungjun Lim , Seungjin Lee , Keunseok Cho

Sparse Mixture-of-Experts (MoE) allows scaling of language and vision models efficiently by activating only a small subset of experts per input. While this reduces computation, the large number of parameters still incurs substantial memory…

The Mixture of Experts (MoE) models are an emerging class of sparsely activated deep learning models that have sublinear compute costs with respect to their parameters. In contrast with dense models, the sparse architecture of MoE offers…

In this paper, we study the task of subjective speech quality assessment (SSQA), which refers to predicting the perceptual quality of speech. Owing to the development of deep neural network models, SSQA has greatly advanced and has been…

Sound · Computer Science 2026-04-27 Wen-Chin Huang , Erica Cooper , Tomoki Toda

Assessing the perceptual quality of synthetic speech is crucial for guiding the development and refinement of speech generation models. However, it has traditionally relied on human subjective ratings such as the Mean Opinion Score (MOS),…

Mixture-of-Experts (MoE) is now the dominant architecture for frontier language models, yet it requires all expert parameters to be loaded in memory, making it less preferable for memory-constrained deployment. Existing compression methods…

Computation and Language · Computer Science 2026-05-28 Junhyuck Kim , Jihun Yun , Haechan Kim , Gyeongman Kim , Joonghyun Bae , Jaewoong Cho

Personalized speech enhancement (PSE) models utilize additional cues, such as speaker embeddings like d-vectors, to remove background noise and interfering speech in real-time and thus improve the speech quality of online video conferencing…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-20 Sefik Emre Eskimez , Takuya Yoshioka , Huaming Wang , Xiaofei Wang , Zhuo Chen , Xuedong Huang

Mixture of Experts layers (MoEs) enable efficient scaling of language models through conditional computation. This paper presents a detailed empirical study of how autoregressive MoE language models scale in comparison with dense models in…

To meet the growing demand for smarter, faster, and more efficient embodied AI solutions, we introduce a novel Mixture-of-Expert (MoE) method that significantly boosts reasoning and learning efficiency for embodied autonomous systems.…

Artificial Intelligence · Computer Science 2025-08-14 Lu Xu , Jiaqian Yu , Xiongfeng Peng , Yiwei Chen , Weiming Li , Jaewook Yoo , Sunghyun Chunag , Dongwook Lee , Daehyun Ji , Chao Zhang

Mixture of Experts (MoE) has become a key architectural paradigm for efficiently scaling Large Language Models (LLMs) by selectively activating a subset of parameters for each input token. However, standard MoE architectures face…

Machine Learning · Computer Science 2025-05-27 Zehua Liu , Han Wu , Ruifeng She , Xiaojin Fu , Xiongwei Han , Tao Zhong , Mingxuan Yuan

Finding the optimal configuration of Sparse Mixture-ofExperts (SMoE) that maximizes semantic differentiation among experts is essential for exploiting the full potential of MoE architectures. However, existing SMoE frameworks either heavily…

Machine Learning · Computer Science 2025-12-24 Sumin Park , Noseong Park

Mixture-of-Experts (MoE) large language models (LLMs), which leverage dynamic routing and sparse activation to enhance efficiency and scalability, have achieved higher performance while reducing computational costs. However, these models…

Machine Learning · Computer Science 2025-05-08 Xing Hu , Zhixuan Chen , Dawei Yang , Zukang Xu , Chen Xu , Zhihang Yuan , Sifan Zhou , Jiangyong Yu

State-of-the-art speech synthesis models try to get as close as possible to the human voice. Hence, modelling emotions is an essential part of Text-To-Speech (TTS) research. In our work, we selected FastSpeech2 as the starting point and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-04 Daria Diatlova , Vitaly Shutov

Perceptual speech quality is an important performance metric for teleconferencing applications. The mean opinion score (MOS) is standardized for the perceptual evaluation of speech quality and is obtained by asking listeners to rate the…

Sound · Computer Science 2022-12-06 Haleh Akrami , Hannes Gamper

The paper copes with the task of automatic assessment of second language proficiency from the language learners' spoken responses to test prompts. The task has significant relevance to the field of computer assisted language learning. The…

Computation and Language · Computer Science 2023-10-19 Sara Papi , Edmondo Trentin , Roberto Gretter , Marco Matassoni , Daniele Falavigna

The rapid advancement of large language models has intensified public concerns about the potential misuse. Therefore, it is important to build trustworthy AI-generated text detection systems. Existing methods neglect stylistic modeling and…

Computation and Language · Computer Science 2025-09-09 Junxi Wu , Jinpeng Wang , Zheng Liu , Bin Chen , Dongjian Hu , Hao Wu , Shu-Tao Xia

Self-supervised learning (SSL) models like Wav2Vec2, HuBERT, and WavLM have been widely used in speech processing. These transformer-based models consist of multiple layers, each capturing different levels of representation. While prior…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-13 Xinyu Liang , Fredrik Cumlin , Victor Ungureanu , Chandan K. A. Reddy , Christian Schuldt , Saikat Chatterjee

Mixture-of-experts based models, which use language experts to extract language-specific representations effectively, have been well applied in code-switching automatic speech recognition. However, there is still substantial space to…

Sound · Computer Science 2023-10-10 Peikun Chen , Fan Yu , Yuhao Lian , Hongfei Xue , Xucheng Wan , Naijun Zheng , Huan Zhou , Lei Xie