Why Not Put a Microphone Near the Loudspeaker? A New Paradigm for Acoustic Echo Cancellation
An auxiliary microphone near the loudspeaker provides a reference for echo cancellation under nonlinear distortion.
SPEECH · SIGNALS · INTELLIGENCE
Fei Zhao
Ph.D. student Inner Mongolia University
Learning to listen.
Making speech clearer.
I am a Ph.D. student in Computer Science and Technology at Inner Mongolia University, advised by Xueliang Zhang (张学良). My research focuses on speech signal processing, with an emphasis on acoustic echo cancellation and robust speech communication.
I am currently a visiting student at The Chinese University of Hong Kong, Shenzhen, working with DeLiang Wang (汪德亮). Previously, I visited Southern University of Science and Technology and worked with Zhong-Qiu Wang (王中秋).
01 / EXPERIENCE
Academic journey.
Doctoral study and visiting research.
— Present CURRENT VISIT
The Chinese University of Hong Kong, Shenzhen
Visiting student
Host advisor: DeLiang Wang (汪德亮)
—
Southern University of Science and Technology
Visiting student
Host advisor: Zhong-Qiu Wang (王中秋)
DOCTORAL STUDY
Inner Mongolia University
Ph.D. student · Computer Science and Technology
Advisor: Xueliang Zhang (张学良)
02 / RESEARCH
From acoustic signals
to clearer communication.
01
Acoustic Echo Cancellation
Echo path modeling, learned filters, and generalization to unseen acoustic environments.
02
Speech Enhancement
Recovering speech in the presence of noise and residual echo.
03
Spatial Audio Processing
Multi-channel microphone arrays and direction-of-arrival cues.
04
Active Noise Control
Exploring signal processing methods for acoustic noise reduction.
03 / PUBLICATIONS
Research in print.
Conference papers and preprints. Preprints are labeled separately.
2025
Room Impulse Response as a Prompt for Acoustic Echo Cancellation
Room impulse responses guide training to improve generalization to unfamiliar echo paths.
Multi-Channel Acoustic Echo Cancellation Based on Direction-of-Arrival Estimation
Sound-source directional cues inform a multi-channel echo cancellation network.
Attention-Enhanced Short-Time Wiener Solution for Acoustic Echo Cancellation
Combining attention mechanisms with classical Wiener filtering to address double-talk interference.
2024
SDAEC: Signal Decoupling for Advancing Acoustic Echo Cancellation
Signal energy scaling reduces the mismatch between reference and microphone signals.
Deep Echo Path Modeling for Acoustic Echo Cancellation
Explicit echo-path estimation provides auxiliary supervision for echo cancellation.
04 / CONNECT
Let’s talk about speech.
For research discussions and academic correspondence.