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Acoustic Echo Cancellation (AEC) plays a key role in voice interaction. Due to the explicit mathematical principle and intelligent nature to accommodate conditions, adaptive filters with different types of implementations are always used…

Sound · Computer Science 2020-05-20 Lu Ma , Hua Huang , Pei Zhao , Tengrong Su

Acoustic Echo Cancellation (AEC) whose aim is to suppress the echo originated from acoustic coupling between loudspeakers and microphones, plays a key role in voice interaction. Linear adaptive filter (AF) is always used for handling this…

Sound · Computer Science 2021-06-01 Lu Ma , Song Yang , Yaguang Gong , Xintian Wang , Zhongqin Wu

Acoustic echo cancellation (AEC) is an important speech signal processing technology that can remove echoes from microphone signals to enable natural-sounding full-duplex speech communication. While single-channel AEC is widely adopted,…

Sound · Computer Science 2025-06-09 Fei Zhao , Xueliang Zhang , Zhong-Qiu Wang

Traditionally, adaptive filters have been deployed to achieve AEC by estimating the acoustic echo response using algorithms such as the Normalized Least-Mean-Square (NLMS) algorithm. Several approaches have been proposed over recent years…

Sound · Computer Science 2022-01-19 Urmila Shrawankar

Acoustic echo cancellation (AEC) remains challenging in real-world environments due to nonlinear distortions caused by low-cost loudspeakers and complex room acoustics. To mitigate these issues, we introduce a dual-microphone configuration,…

Sound · Computer Science 2025-11-06 Fei Zhao , Zhong-Qiu Wang

Acoustic echo cancellation (AEC) plays an important role in the full-duplex speech communication as well as the front-end speech enhancement for recognition in the conditions when the loudspeaker plays back. In this paper, we present an…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-24 Meng Yu , Yong Xu , Chunlei Zhang , Shi-Xiong Zhang , Dong Yu

Acoustic echo cannot be entirely removed by linear adaptive filters due to the nonlinear relationship between the echo and far-end signal. Usually a post processing module is required to further suppress the echo. In this paper, we propose…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-18 Hongsheng Chen , Teng Xiang , Kai Chen , Jing Lu

Acoustic Echo Cancellation (AEC) plays a key role in speech interaction by suppressing the echo received at microphone introduced by acoustic reverberations from loudspeakers. Since the performance of linear adaptive filter (AF) would…

Sound · Computer Science 2021-06-02 Lu Ma , Song Yang , Yaguang Gong , Zhongqin Wu

In recent years, neural networks (NNs) have been widely applied in acoustic echo cancellation (AEC). However, existing approaches struggle to meet real-world low-latency and computational requirements while maintaining performance. To…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-11 Xingchen Li , Boyi Kang , Ziqian Wang , Zihan Zhang , Mingshuai Liu , Zhonghua Fu , Lei Xie

Deep neural network (DNN)-based approaches to acoustic echo cancellation (AEC) and hybrid speech enhancement systems have gained increasing attention recently, introducing significant performance improvements to this research field. Using…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-24 Jan Franzen , Tim Fingscheidt

Acoustic echo cancellation (AEC) aims to remove interference signals while leaving near-end speech least distorted. As the indistinguishable patterns between near-end speech and interference signals, near-end speech can't be separated…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-27 Chang Han , Xinmeng Xu , Weiping Tu , Yuhong Yang , Yajie Liu

Acoustic echo cancellation (AEC) algorithms have a long-term steady role in signal processing, with approaches improving the performance of applications such as automotive hands-free systems, smart home and loudspeaker devices, or web…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-17 Jan Franzen , Ernst Seidel , Tim Fingscheidt

We consider the problem of simultaneous reduction of acoustic echo, reverberation and noise. In real scenarios, these distortion sources may occur simultaneously and reducing them implies combining the corresponding distortion-specific…

Sound · Computer Science 2020-07-28 Guillaume Carbajal , Romain Serizel , Emmanuel Vincent , Eric Humbert

In full-duplex speech interaction systems, effective Acoustic Echo Cancellation (AEC) is crucial for recovering echo-contaminated speech. This paper presents a neural network-based AEC solution to address challenges in mobile scenarios with…

Sound · Computer Science 2025-08-12 Yiheng Jiang , Tian Biao

Acoustic echo cancellation (AEC) is designed to remove echoes, reverberation, and unwanted added sounds from the microphone signal while maintaining the quality of the near-end speaker's speech. This paper proposes adaptive speech quality…

Sound · Computer Science 2022-11-10 Bozhong Liu , Xiaoxi Yu , Hantao Huang

This paper presents an acoustic echo canceler based on a U-Net convolutional neural network for single-talk and double-talk scenarios. U-Net networks have previously been used in the audio processing area for source separation problems…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-21 J. Silva-Rodríguez , M. F. Dolz , M. Ferrer , A. Castelló , V. Naranjo , G. Piñero

Acoustic echo degrades the user experience in voice communication systems thus needs to be suppressed completely. We propose a real-time residual acoustic echo suppression (RAES) method using an efficient convolutional neural network. The…

Sound · Computer Science 2020-11-09 Xinquan Zhou , Yanhong Leng

Acoustic Echo Cancellation (AEC) is an essential speech signal processing technology that removes echoes from microphone inputs to facilitate natural-sounding full-duplex communication. Currently, deep learning-based AEC methods primarily…

Sound · Computer Science 2024-12-30 Fei Zhao , Xueliang Zhang

In many speech recording applications, the recorded desired speech is corrupted by both noise and acoustic echo, such that combined noise reduction (NR) and acoustic echo cancellation (AEC) is called for. A common cascaded design…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-06 Arnout Roebben , Toon van Waterschoot , Marc Moonen

In this paper, we propose a residual echo suppression method using a UNet neural network that directly maps the outputs of a linear acoustic echo canceler to the desired signal in the spectral domain. This system embeds a design parameter…

Sound · Computer Science 2021-06-28 Amir Ivry , Israel Cohen , Baruch Berdugo
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