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Related papers: Muting Whisper: A Universal Acoustic Adversarial A…

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In this paper, we explore the untapped potential of Whisper, a well-established automatic speech recognition (ASR) foundation model, in the context of L2 spoken language assessment (SLA). Unlike prior studies that extrinsically analyze…

Computation and Language · Computer Science 2026-01-27 Fu-An Chao , Bi-Cheng Yan , Berlin Chen

Adversarial examples tremendously threaten the availability and integrity of machine learning-based systems. While the feasibility of such attacks has been observed first in the domain of image processing, recent research shows that speech…

Sound · Computer Science 2020-10-15 Tom Dörr , Karla Markert , Nicolas M. Müller , Konstantin Böttinger

The combination of pre-trained speech encoders with large language models has enabled the development of speech LLMs that can handle a wide range of spoken language processing tasks. While these models are powerful and flexible, this very…

Computation and Language · Computer Science 2025-05-21 Rao Ma , Mengjie Qian , Vyas Raina , Mark Gales , Kate Knill

Recent research on word-level confidence estimation for speech recognition systems has primarily focused on lightweight models known as Confidence Estimation Modules (CEMs), which rely on hand-engineered features derived from Automatic…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-20 Vaibhav Aggarwal , Shabari S Nair , Yash Verma , Yash Jogi

Automatic speech recognition systems have created exciting possibilities for applications, however they also enable opportunities for systematic eavesdropping. We propose a method to camouflage a person's voice over-the-air from these…

Sound · Computer Science 2022-02-18 Mia Chiquier , Chengzhi Mao , Carl Vondrick

Mass surveillance systems for voice over IP (VoIP) conversations pose a great risk to privacy. These automated systems use learning models to analyze conversations, and calls that involve specific topics are routed to a human agent for…

Sound · Computer Science 2021-09-03 Yael Mathov , Tal Ben Senior , Asaf Shabtai , Yuval Elovici

Extensive research has shown that Automatic Speech Recognition (ASR) systems are vulnerable to audio adversarial attacks. Current attacks mainly focus on single-source scenarios, ignoring dual-source scenarios where two people are speaking…

Cryptography and Security · Computer Science 2025-04-08 Zheng Fang , Shenyi Zhang , Tao Wang , Bowen Li , Lingchen Zhao , Zhangyi Wang

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

Adversarial perturbations in speech pose a serious threat to automatic speech recognition (ASR) and speaker verification by introducing subtle waveform modifications that remain imperceptible to humans but can significantly alter system…

Sound · Computer Science 2026-02-02 Daniyal Kabir Dar , Qiben Yan , Li Xiao , Arun Ross

Attacking deep learning based biometric systems has drawn more and more attention with the wide deployment of fingerprint/face/speaker recognition systems, given the fact that the neural networks are vulnerable to the adversarial examples,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-08 Jiguo Li , Xinfeng Zhang , Chuanmin Jia , Jizheng Xu , Li Zhang , Yue Wang , Siwei Ma , Wen Gao

Thanks to the popularisation of transformer-based models, speech recognition (SR) is gaining traction in various application fields, such as industrial and robotics environments populated with mission-critical devices. While…

Cryptography and Security · Computer Science 2024-09-20 Jonatan Bartolini , Todor Stoyanov , Alberto Giaretta

Automatic Speech Recognition (ASR) systems convert speech into text and can be placed into two broad categories: traditional and fully end-to-end. Both types have been shown to be vulnerable to adversarial audio examples that sound benign…

Speaker verification is a task of confirming an individual's identity through the analysis of their voice. Whispered speech differs from phonated speech in acoustic characteristics, which degrades the performance of speaker verification…

Sound · Computer Science 2026-05-08 Magdalena Gołębiowska , Piotr Syga

An automatic speech recognition (ASR) system based on a deep neural network is vulnerable to attack by an adversarial example, especially if the command-dependent ASR fails. A defense method against adversarial examples is proposed to…

Sound · Computer Science 2021-10-19 Mingyu Dong , Diqun Yan , Yongkang Gong , Rangding Wang

Recent work has shown the possibility of adversarial attacks on automatic speechrecognition (ASR) systems. However, in the vast majority of work in this area, theattacks have been executed only in the digital space, or have involved short…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-18 Joseph Szurley , J. Zico Kolter

Automatic Speech Recognition (ASR) has seen remarkable progress, with models like OpenAI Whisper and NVIDIA Canary achieving state-of-the-art (SOTA) performance in offline transcription. However, these models are not designed for streaming…

Computation and Language · Computer Science 2026-04-07 Tomer Krichli , Bhiksha Raj , Joseph Keshet

Deep noise suppression (DNS) models enjoy widespread use throughout a variety of high-stakes speech applications. However, we show that four recent DNS models can each be reduced to outputting unintelligible gibberish through the addition…

Sound · Computer Science 2026-03-12 Will Schwarzer , Neel Chaudhari , Philip S. Thomas , Andrea Fanelli , Xiaoyu Liu

We propose a method to generate audio adversarial examples that can attack a state-of-the-art speech recognition model in the physical world. Previous work assumes that generated adversarial examples are directly fed to the recognition…

Machine Learning · Computer Science 2019-08-20 Hiromu Yakura , Jun Sakuma

Voice interfaces are becoming accepted widely as input methods for a diverse set of devices. This development is driven by rapid improvements in automatic speech recognition (ASR), which now performs on par with human listening in many…

Cryptography and Security · Computer Science 2018-10-31 Lea Schönherr , Katharina Kohls , Steffen Zeiler , Thorsten Holz , Dorothea Kolossa

Speaker embedding based zero-shot Text-to-Speech (TTS) systems enable high-quality speech synthesis for unseen speakers using minimal data. However, these systems are vulnerable to adversarial attacks, where an attacker introduces…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-07 Ze Li , Yao Shi , Yunfei Xu , Ming Li