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Speech tokenizers are foundational to speech language models, yet existing approaches face two major challenges: (1) balancing trade-offs between encoding semantics for understanding and acoustics for reconstruction, and (2) achieving low…

Non-parallel many-to-many voice conversion remains an interesting but challenging speech processing task. Recently, AutoVC, a conditional autoencoder based method, achieved excellent conversion results by disentangling the speaker identity…

Sound · Computer Science 2022-08-09 Huaizhen Tang , Xulong Zhang , Jianzong Wang , Ning Cheng , Zhen Zeng , Edward Xiao , Jing Xiao

Text-to-audio generation models (TAG) have achieved significant advances in generating audio conditioned on text descriptions. However, a critical challenge lies in the lack of transparency regarding how each textual input impacts the…

Sound · Computer Science 2025-10-20 Hyunju Kang , Geonhee Han , Yoonjae Jeong , Hogun Park

Building upon advancements in Large Language Models (LLMs), the field of audio processing has seen increased interest in training audio generation tasks with discrete audio token sequences. However, directly discretizing audio by neural…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-08 Wenrui Liu , Zhifang Guo , Jin Xu , Yuanjun Lv , Yunfei Chu , Zhou Zhao , Junyang Lin

Anomalous Sound Detection (ASD) is often formulated as a machine attribute classification task, a strategy necessitated by the common scenario where only normal data is available for training. However, the exhaustive collection of machine…

Sound · Computer Science 2025-09-22 Xin Fang , Guirui Zhong , Qing Wang , Fan Chu , Lei Wang , Mengui Qian , Mingqi Cai , Jiangzhao Wu , Jianqing Gao , Jun Du

Speech tokenizers are a key building block of fully discrete Speech LLMs.Existing tokenizers either prioritize semantic encoding,fuse semantic content with acoustic style inseparably,or achieve incomplete semantic-acoustic…

Sound · Computer Science 2026-05-28 Hanlin Zhang , Daxin Tan , Dehua Tao , Xiao Chen , Haochen Tan , Yunhe Li , Yuchen Cao , Linqi Song

In traditional audio captioning methods, a model is usually trained in a fully supervised manner using a human-annotated dataset containing audio-text pairs and then evaluated on the test sets from the same dataset. Such methods have two…

Sound · Computer Science 2024-06-11 Yiming Zhang , Xuenan Xu , Ruoyi Du , Haohe Liu , Yuan Dong , Zheng-Hua Tan , Wenwu Wang , Zhanyu Ma

Compared with ample visual-text pre-training research, few works explore audio-text pre-training, mostly due to the lack of sufficient parallel audio-text data. Most existing methods incorporate the visual modality as a pivot for audio-text…

Sound · Computer Science 2024-03-06 Xuenan Xu , Zhiling Zhang , Zelin Zhou , Pingyue Zhang , Zeyu Xie , Mengyue Wu , Kenny Q. Zhu

Automated audio captioning aims at generating textual descriptions for an audio clip. To evaluate the quality of generated audio captions, previous works directly adopt image captioning metrics like SPICE and CIDEr, without justifying their…

Sound · Computer Science 2022-01-28 Zelin Zhou , Zhiling Zhang , Xuenan Xu , Zeyu Xie , Mengyue Wu , Kenny Q. Zhu

Audio tokenization has emerged as a critical component in end-to-end audio language models, enabling efficient discrete representation learning for both audio understanding and generation tasks. However, existing audio tokenizers face…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-15 Xiangyu Zhang , Benjamin John Southwell , Siqi Pan , Xinlei Niu , Beena Ahmed , Julien Epps

As an important component of multimedia analysis tasks, audio classification aims to discriminate between different audio signal types and has received intensive attention due to its wide applications. Generally speaking, the raw signal can…

Multimedia · Computer Science 2020-02-25 Liang Gao , Kele Xu , Huaimin Wang , Yuxing Peng

Zero-shot audio captioning aims at automatically generating descriptive textual captions for audio content without prior training for this task. Different from speech recognition which translates audio content that contains spoken language…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-15 Leonard Salewski , Stefan Fauth , A. Sophia Koepke , Zeynep Akata

Dense video captioning is a task of localizing interesting events from an untrimmed video and producing textual description (captions) for each localized event. Most of the previous works in dense video captioning are solely based on visual…

Computer Vision and Pattern Recognition · Computer Science 2020-05-07 Vladimir Iashin , Esa Rahtu

Efficient audio quality assessment is vital for streamlining audio codec development. Objective assessment tools have been developed over time to algorithmically predict quality ratings from subjective assessments, the gold standard for…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-28 Pablo M. Delgado , Jürgen Herre

The rapid advancement of artificial intelligence (AI) has enabled sophisticated audio generation and voice cloning technologies, posing significant security risks for applications reliant on voice authentication. While existing datasets and…

Sound · Computer Science 2025-05-22 Kunyang Huang , Bin Hu

Audio content analysis in terms of sound events is an important research problem for a variety of applications. Recently, the development of weak labeling approaches for audio or sound event detection (AED) and availability of large scale…

Sound · Computer Science 2018-04-26 Ankit Shah , Anurag Kumar , Alexander G. Hauptmann , Bhiksha Raj

State-of-the-art audio captioning methods typically use the encoder-decoder structure with pretrained audio neural networks (PANNs) as encoders for feature extraction. However, the convolution operation used in PANNs is limited in capturing…

Sound · Computer Science 2023-04-11 Feiyang Xiao , Jian Guan , Qiaoxi Zhu , Wenwu Wang

Obtaining large-scale human-labeled datasets to train acoustic representation models is a very challenging task. On the contrary, we can easily collect data with machine-generated labels. In this work, we propose to exploit…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Shaoyong Jia , Xin Shu , Yang Yang , Dawei Liang , Qiyue Liu , Junhui Liu

Recent success in speech representation learning enables a new way to leverage unlabeled data to train speech recognition model. In speech representation learning, a large amount of unlabeled data is used in a self-supervised manner to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-12-15 Shaoshi Ling , Yuzong Liu

We study two foundational problems in audio language models: (1) how to design an audio tokenizer that can serve as an intermediate representation for both understanding and generation; and (2) how to build an audio foundation model that…

Sound · Computer Science 2026-02-12 Dongchao Yang , Yuanyuan Wang , Dading Chong , Songxiang Liu , Xixin Wu , Helen Meng