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Single-channel speech enhancement approaches do not always improve automatic recognition rates in the presence of noise, because they can introduce distortions unhelpful for recognition. Following a trend towards end-to-end training of…

Sound · Computer Science 2021-12-14 Peter Plantinga , Deblin Bagchi , Eric Fosler-Lussier

Speech enhancement methods are commonly believed to improve the performance of automatic speech recognition (ASR) in noisy environments. However, the effectiveness of these techniques cannot be taken for granted in the case of modern…

Modern speech synthesis systems have improved significantly, with synthetic speech being indistinguishable from real speech. However, efficient and holistic evaluation of synthetic speech still remains a significant challenge. Human…

Computation and Language · Computer Science 2023-10-03 Dareen Alharthi , Roshan Sharma , Hira Dhamyal , Soumi Maiti , Bhiksha Raj , Rita Singh

This paper introduces a practical approach for leveraging a real-time deep learning model to alternate between speech enhancement and joint speech enhancement and separation depending on whether the input mixture contains one or two active…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-17 Kashyap Patel , Anton Kovalyov , Issa Panahi

In this work, we investigate application of generative speech enhancement to improve the robustness of ASR models in noisy and reverberant conditions. We employ a recently-proposed speech enhancement model based on Schr\"odinger bridge,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-09 Rauf Nasretdinov , Roman Korostik , Ante Jukić

This paper describes noisy speech recognition for an augmented reality headset that helps verbal communication within real multiparty conversational environments. A major approach that has actively been studied in simulated environments is…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-18 Yicheng Du , Aditya Arie Nugraha , Kouhei Sekiguchi , Yoshiaki Bando , Mathieu Fontaine , Kazuyoshi Yoshii

In multi-channel speech enhancement and robust automatic speech recognition (ASR), beamforming can typically improve the signal-to-noise ratio (SNR) of the target speaker and produce reliable enhancement with little distortion to target…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-22 Zhong-Qiu Wang , Ruizhe Pang

Recently, deep neural network (DNN)-based speech enhancement (SE) systems have been used with great success. During training, such systems require clean speech data - ideally, in large quantity with a variety of acoustic conditions, many…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-27 Koichi Saito , Stefan Uhlich , Giorgio Fabbro , Yuki Mitsufuji

Recent speech enhancement (SE) models increasingly leverage self-supervised learning (SSL) representations for their rich semantic information. Typically, intermediate features are aggregated into a single representation via a lightweight…

Sound · Computer Science 2026-02-02 Seungu Han , Sungho Lee , Kyogu Lee

Multi-speaker automatic speech recognition (ASR) is crucial for many real-world applications, but it requires dedicated modeling techniques. Existing approaches can be divided into modular and end-to-end methods. Modular approaches separate…

Computation and Language · Computer Science 2023-06-22 Simon Berger , Peter Vieting , Christoph Boeddeker , Ralf Schlüter , Reinhold Haeb-Umbach

As the performance of single-channel speech separation systems has improved, there has been a desire to move to more challenging conditions than the clean, near-field speech that initial systems were developed on. When training deep…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-23 Matthew Maciejewski , Jing Shi , Shinji Watanabe , Sanjeev Khudanpur

End-to-end models for robust automatic speech recognition (ASR) have not been sufficiently well-explored in prior work. With end-to-end models, one could choose to preprocess the input speech using speech enhancement techniques and train…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Archiki Prasad , Preethi Jyothi , Rajbabu Velmurugan

It is challenging to improve automatic speech recognition (ASR) performance in noisy conditions with a single-channel speech enhancement (SE) front-end. This is generally attributed to the processing distortions caused by the nonlinear…

Audio and Speech Processing · Electrical Eng. & Systems 2024-04-24 Tsubasa Ochiai , Kazuma Iwamoto , Marc Delcroix , Rintaro Ikeshita , Hiroshi Sato , Shoko Araki , Shigeru Katagiri

Compared with automatic speech recognition (ASR), the human auditory system is more adept at handling noise-adverse situations, including environmental noise and channel distortion. To mimic this adeptness, auditory models have been widely…

Computation and Language · Computer Science 2016-09-16 Peng Dai , Xue Teng , Frank Rudzicz , Ing Yann Soon

Form about four decades human beings have been dreaming of an intelligent machine which can master the natural speech. In its simplest form, this machine should consist of two subsystems, namely automatic speech recognition (ASR) and speech…

Sound · Computer Science 2013-05-08 Urmila Shrawankar , V. M. Thakare

The combination of a deep neural network (DNN) -based speech enhancement (SE) front-end and an automatic speech recognition (ASR) back-end is a widely used approach to implement overlapping speech recognition. However, the SE front-end…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-17 Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Keisuke Kinoshita , Naoyuki Kamo , Takafumi Moriya

Automatic speech recognition (ASR) has become increasingly ubiquitous on modern edge devices. Past work developed streaming End-to-End (E2E) all-neural speech recognizers that can run compactly on edge devices. However, E2E ASR models are…

Computation and Language · Computer Science 2021-07-13 Dilin Wang , Yuan Shangguan , Haichuan Yang , Pierce Chuang , Jiatong Zhou , Meng Li , Ganesh Venkatesh , Ozlem Kalinli , Vikas Chandra

New-age conversational agent systems perform both speech emotion recognition (SER) and automatic speech recognition (ASR) using two separate and often independent approaches for real-world application in noisy environments. In this paper,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Lokesh Bansal , S. Pavankumar Dubagunta , Malolan Chetlur , Pushpak Jagtap , Aravind Ganapathiraju

We consider the problem of recognizing speech utterances spoken to a device which is generating a known sound waveform; for example, recognizing queries issued to a digital assistant which is generating responses to previous user inputs.…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-03 Nathan Howard , Alex Park , Turaj Zakizadeh Shabestary , Alexander Gruenstein , Rohit Prabhavalkar

Speech-enabled systems typically first convert audio to text through an automatic speech recognition (ASR) model and then feed the text to downstream natural language processing (NLP) modules. The errors of the ASR system can seriously…

Computation and Language · Computer Science 2021-03-26 Tong Cui , Jinghui Xiao , Liangyou Li , Xin Jiang , Qun Liu