Results 31 to 40 of about 1,828 (248)

Insight into linear periodically time-varying coherence reduction methods for stereophonic acoustic echo cancellation

, 2022
S.11-15The non-uniqueness problem of multi-channel acoustic echo cancellation can be solved by reducing the coherence between the loudspeaker signals.
Habets, E.A.P., Valero, M.L.
core   +1 more source

Efficient multichannel acoustic echo cancellation using constrained tap selection schemes in the subband domain

EURASIP Journal on Advances in Signal Processing, 2017
Acoustic echo cancellation (AEC) is a key speech enhancement technology in speech communication and voice-enabled devices. AEC systems employ adaptive filters to estimate the acoustic echo paths between the loudspeakers and the microphone(s).
Naveen Kumar Desiraju, Simon Doclo, Tobias Wolff   +2 more
doaj   +1 more source

Double-Talk Detection-Aided Residual Echo Suppression via Spectrogram Masking and Refinement

Acoustics, 2022
Acoustic echo in full-duplex telecommunication systems is a common problem that may cause desired-speech quality degradation during double-talk periods.
Eran Shachar, Israel Cohen, Baruch Berdugo   +2 more
doaj   +1 more source

On the spatial coherence of residual echoes after stft-domain multi-microphone acoustic echo cancellation

, 2022
S.141-145For computational efficiency, sub-band dependencies are commonly neglected when implementing acoustic echo cancelers in the short-time Fourier transform (STFT) domain.
Habets, E.A.P., Valero, M.L.
core   +1 more source

Low-Complexity Self-Interference Cancellation for Multiple Access Full Duplex Systems

Sensors, 2022
Self-interference occurs when there is electromagnetic coupling between the transmission and reception of the same node; thus, degrading the RX sensitivity to incoming signals.
Shachar Shayovitz, Andrey Krestiantsev, Dan Raphaeli   +2 more
doaj   +1 more source

A hybrid acoustic echo canceller and suppressor

Signal Processing, 2007
Wideband communication is becoming a desired feature in telephone conferencing systems. This paper proposes a computationally efficient echo suppression control algorithm to be used when increasing the bandwidth of an audio conferencing system, e.g. a conference telephone.
Fredric Lindström, Christian Schüldt, Ingvar Claesson   +2 more
openaire   +3 more sources

Acoustic Echo Cancellation For Conference Systems

, 2004
Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
Akihiko Sugiyama, Akihiro Hirano, Kenji Nakayama   +2 more
openaire   +3 more sources

Multi-microphone acoustic echo cancellation using relative echo transfer functions

, 2022
S.229-233Modern hands-free communication devices, such as smart speakers, are equipped with several microphones, and one or more loudspeakers. The most straightforward solution to reduce acoustic echoes is to apply acoustic echo cancellation (AEC) to ...
Valero, Maria Luis, Habets, Emanuël A.P.   +1 more
core   +1 more source

A low-complexity state-space architecture for multi-microphone acoustic echo control

, 2022
S.1-5Modern hands-free communication devices, tablets, smart speakers and televisions, employ multi-microphone signal processing for speech enhancement and recognition. Given a multi-microphone (MM) setup, the signals reproduced by the loudspeaker(s) are
Habets, E.A.P., Luis Valero, M., Mabande, E.   +2 more
core   +1 more source

Efficient Fast Stereo Acoustic Echo Cancellation Based on Pairwise Optimal Weight Realization Technique

EURASIP Journal on Advances in Signal Processing, 2006
In stereophonic acoustic echo cancellation (SAEC) problem, fast and accurate tracking of echo path is strongly required for stable echo cancellation. In this paper, we propose a class of efficient fast SAEC schemes with linear computational complexity ...
Yukawa Masahiro, Murakoshi Noriaki, Yamada Isao   +2 more
doaj   +1 more source