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This paper proposes to use low-level spatial features extracted from multichannel audio for sound event detection. We extend the convolutional recurrent neural network to handle more than one type of these multichannel features by learning…

Sound · Computer Science 2017-06-09 Sharath Adavanne , Pasi Pertilä , Tuomas Virtanen

Reverberation is damaging to both the quality and the intelligibility of a speech signal. We propose a novel single-channel method of dereverberation based on a linear filter in the Short Time Fourier Transform domain. Each enhanced frame…

Sound · Computer Science 2015-09-25 Richard Stanton , Mike Brookes

Spatial information is a critical clue for multi-channel multi-speaker target speech recognition. Most state-of-the-art multi-channel Automatic Speech Recognition (ASR) systems extract spatial features only during the speech separation…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Yiwen Shao , Yong Xu , Sanjeev Khudanpur , Dong Yu

Speech enhancement is a demanding task in automated speech processing pipelines, focusing on separating clean speech from noisy channels. Transformer based models have recently bested RNN and CNN models in speech enhancement, however at the…

Sound · Computer Science 2023-08-07 Jinyu Long , Jetic Gū , Binhao Bai , Zhibo Yang , Ping Wei , Junli Li

In this paper, we propose the use of spatial and harmonic features in combination with long short term memory (LSTM) recurrent neural network (RNN) for automatic sound event detection (SED) task. Real life sound recordings typically have…

This paper proposes an end-to-end approach for single-channel speaker-independent multi-speaker speech separation, where time-frequency (T-F) masking, the short-time Fourier transform (STFT), and its inverse are represented as layers within…

Sound · Computer Science 2018-04-30 Zhong-Qiu Wang , Jonathan Le Roux , DeLiang Wang , John R. Hershey

This paper proposes a delayed subband LSTM network for online monaural (single-channel) speech enhancement. The proposed method is developed in the short time Fourier transform (STFT) domain. Online processing requires frame-by-frame signal…

Sound · Computer Science 2023-12-13 Xiaofei Li , Radu Horaud

The performance of deep learning models depends significantly on their capacity to encode input features efficiently and decode them into meaningful outputs. Better input and output representation has the potential to boost models'…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-10 Ahmed Adel Attia , Yashish M. Siriwardena , Carol Espy-Wilson

In recent years, speech enhancement (SE) has achieved impressive progress with the success of deep neural networks (DNNs). However, the DNN approach usually fails to generalize well to unseen environmental noise that is not included in the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-09 Haoyu Li , Junichi Yamagishi

Audio-visual speech enhancement system is regarded to be one of promising solutions for isolating and enhancing speech of desired speaker. Conventional methods focus on predicting clean speech spectrum via a naive convolution neural network…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-28 Xinmeng Xu , Jianjun Hao

This paper introduces a new method for multi-channel time domain speech separation in reverberant environments. A fully-convolutional neural network structure has been used to directly separate speech from multiple microphone recordings,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-12 Jisi Zhang , Catalin Zorila , Rama Doddipatla , Jon Barker

With the development of teleconferencing and in-vehicle voice assistants, far-field multi-speaker speech recognition has become a hot research topic. Recently, a multi-channel transformer (MCT) has been proposed, which demonstrates the…

Sound · Computer Science 2026-01-07 Guo Yifan , Tian Yao , Suo Hongbin , Wan Yulong

Speech enhancement has seen great improvement in recent years using end-to-end neural networks. However, most models are agnostic to the spoken phonetic content. Recently, several studies suggested phonetic-aware speech enhancement, mostly…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-23 Or Tal , Moshe Mandel , Felix Kreuk , Yossi Adi

Semantic communications have shown great potential to boost the end-to-end transmission performance. To further improve the system efficiency, in this paper, we propose a class of novel semantic coded transmission (SCT) schemes over…

Information Theory · Computer Science 2022-11-01 Shengshi Yao , Sixian Wang , Jincheng Dai , Kai Niu , Ping Zhang

Recent single-channel speech enhancement methods usually convert waveform to the time-frequency domain and use magnitude/complex spectrum as the optimizing target. However, both magnitude-spectrum-based methods and complex-spectrum-based…

Sound · Computer Science 2021-10-13 Wenxin Tai , Jiajia Li , Yixiang Wang , Tian Lan , Qiao Liu

Previous speech enhancement methods focus on estimating the short-time spectrum of speech signals due to its short-term stability. However, these methods often only estimate the clean magnitude spectrum and reuse the noisy phase when…

Sound · Computer Science 2019-10-23 Chuang Geng , Lei Wang

In the task of speaker diarization, the number of small-scale meetings accounts for a large proportion. When microphone arrays are employed as a recording device, its spatial information is usually ignored by most researchers. In this…

Sound · Computer Science 2022-10-27 Yuxuan Du , Ruohua Zhou

Single-channel speech enhancement is utilized in various tasks to mitigate the effect of interfering signals. Conventionally, to ensure the speech enhancement performs optimally, the speech enhancement has needed to be tuned for each task.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-11 Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Takafumi Moriya , Takanori Ashihara , Ryo Masumura

Recent synthetic speech detection models typically adapt a pre-trained SSL model via finetuning, which is computationally demanding. Parameter-Efficient Fine-Tuning (PEFT) offers an alternative. However, existing methods lack the specific…

Sound · Computer Science 2025-10-30 Yassine El Kheir , Fabian Ritter-Guttierez , Arnab Das , Tim Polzehl , Sebastian Möller

This paper proposes a new loss using short-time Fourier transform (STFT) spectra for the aim of training a high-performance neural speech waveform model that predicts raw continuous speech waveform samples directly. Not only amplitude…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-31 Shinji Takaki , Toru Nakashika , Xin Wang , Junichi Yamagishi