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Spiking neural networks (SNNs) can be used in low-power and embedded systems (such as emerging neuromorphic chips) due to their event-based nature. Also, they have the advantage of low computation cost in contrast to conventional artificial…

计算机视觉与模式识别 · 计算机科学 2021-01-20 Ali Samadzadeh , Fatemeh Sadat Tabatabaei Far , Ali Javadi , Ahmad Nickabadi , Morteza Haghir Chehreghani

We propose a self-supervised contrastive learning approach for facial expression recognition (FER) in videos. We propose a novel temporal sampling-based augmentation scheme to be utilized in addition to standard spatial augmentations used…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Shuvendu Roy , Ali Etemad

Pain management and severity detection are crucial for effective treatment, yet traditional self-reporting methods are subjective and may be unsuitable for non-verbal individuals (people with limited speaking skills). To address this…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Aafaf Ridouan , Amine Bohi , Youssef Mourchid

Human-imitated speech poses a greater challenge than AI-generated speech for both human listeners and automatic detection systems. Unlike AI-generated speech, which often contains artifacts, over-smoothed spectra, or robotic cues, imitated…

声音 · 计算机科学 2026-04-28 Khalid Zaman , Masashi Unoki

Existing generative models for unsupervised anomalous sound detection are limited by their inability to fully capture the complex feature distribution of normal sounds, while the potential of powerful diffusion models in this domain remains…

声音 · 计算机科学 2026-02-03 Chengyuan Ma , Peng Jia , Hongyue Guo , Wenming Yang

We present a novel model designed for resource-efficient multichannel speech enhancement in the time domain, with a focus on low latency, lightweight, and low computational requirements. The proposed model incorporates explicit spatial and…

声音 · 计算机科学 2024-01-17 Ashutosh Pandey , Buye Xu

For deepfake detection, video-level detectors have not been explored as extensively as image-level detectors, which do not exploit temporal data. In this paper, we empirically show that existing approaches on image and sequence classifiers…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Ipek Ganiyusufoglu , L. Minh Ngô , Nedko Savov , Sezer Karaoglu , Theo Gevers

Detecting partial deepfake speech is essential due to its potential for subtle misinformation. However, existing methods depend on costly frame-level annotations during training, limiting real-world scalability. Also, they focus on…

声音 · 计算机科学 2025-07-28 Menglu Li , Xiao-Ping Zhang , Lian Zhao

Deep Neural Networks (DNN) have been successful in en- hancing noisy speech signals. Enhancement is achieved by learning a nonlinear mapping function from the features of the corrupted speech signal to that of the reference clean speech…

机器学习 · 计算机科学 2016-06-16 Zhenzhou Wu , Sunil Sivadas , Yong Kiam Tan , Ma Bin , Rick Siow Mong Goh

Speaker verification aims to verify whether an input speech corresponds to the claimed speaker, and conventionally, this kind of system is deployed based on single-stream scenario, wherein the feature extractor operates in full frequency…

声音 · 计算机科学 2025-09-03 Wei Yao , Shen Chen , Jiamin Cui , Yaolin Lou

There are a number of studies about extraction of bottleneck (BN) features from deep neural networks (DNNs)trained to discriminate speakers, pass-phrases and triphone states for improving the performance of text-dependent speaker…

声音 · 计算机科学 2019-05-14 Achintya kr. Sarkar , Zheng-Hua Tan , Hao Tang , Suwon Shon , James Glass

In this paper, we propose a deep learning based system for the task of deepfake audio detection. In particular, the draw input audio is first transformed into various spectrograms using three transformation methods of Short-time Fourier…

声音 · 计算机科学 2024-07-03 Lam Pham , Phat Lam , Truong Nguyen , Huyen Nguyen , Alexander Schindler

Spoofing-robust automatic speaker verification (SASV) systems are a crucial technology for the protection against spoofed speech. In this study, we focus on logical access attacks and introduce a novel approach to SASV tasks. A novel…

音频与语音处理 · 电气工程与系统科学 2024-12-24 Avishai Weizman , Yehuda Ben-Shimol , Itshak Lapidot

A deep neural network solution for time-scale modification (TSM) focused on large stretching factors is proposed, targeting environmental sounds. Traditional TSM artifacts such as transient smearing, loss of presence, and phasiness are…

音频与语音处理 · 电气工程与系统科学 2022-12-01 Leonardo Fierro , Alec Wright , Vesa Välimäki , Matti Hämäläinen

Trans-dimensional random field language models (TRF LMs) where sentences are modeled as a collection of random fields, have shown close performance with LSTM LMs in speech recognition and are computationally more efficient in inference.…

计算与语言 · 计算机科学 2017-10-31 Bin Wang , Zhijian Ou

In this paper, we propose an enhanced audio-visual deep detection method. Recent methods in audio-visual deepfake detection mostly assess the synchronization between audio and visual features. Although they have shown promising results,…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Marcella Astrid , Enjie Ghorbel , Djamila Aouada

Most speech enhancement algorithms make use of the short-time Fourier transform (STFT), which is a simple and flexible time-frequency decomposition that estimates the short-time spectrum of a signal. However, the duration of short STFT…

声音 · 计算机科学 2015-09-03 Scott Wisdom , Thomas Powers , Les Atlas , James Pitton

In this paper, we present a time-contrastive learning (TCL) based bottleneck (BN)feature extraction method for speech signals with an application to text-dependent (TD) speaker verification (SV). It is well-known that speech signals exhibit…

声音 · 计算机科学 2019-05-14 Achintya Kr. Sarkar , Zheng-Hua Tan

Although deep learning is the mainstream method in unsupervised anomalous sound detection, Gaussian Mixture Model (GMM) with statistical audio frequency representation as input can achieve comparable results with much lower model complexity…

音频与语音处理 · 电气工程与系统科学 2023-05-08 Jian Guan , Youde Liu , Qiaoxi Zhu , Tieran Zheng , Jiqing Han , Wenwu Wang

The rapid advancement of generative adversarial networks (GANs) and diffusion models has enabled the creation of highly realistic deepfake content, posing significant threats to digital trust across audio-visual domains. While unimodal…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Chende Zheng , Ruiqi Suo , Zhoulin Ji , Jingyi Deng , Fangbin Yi , Chenhao Lin , Chao Shen