Search Results for author: Woon-Seng Gan

Found 32 papers, 12 papers with code

Unsupervised learning based end-to-end delayless generative fixed-filter active noise control

1 code implementation8 Feb 2024 Zhengding Luo, Dongyuan Shi, Xiaoyi Shen, Woon-Seng Gan

Delayless noise control is achieved by our earlier generative fixed-filter active noise control (GFANC) framework through efficient coordination between the co-processor and real-time controller.

Sub-band and Full-band Interactive U-Net with DPRNN for Demixing Cross-talk Stereo Music

no code implementations11 Jan 2024 Han Yin, Mou Wang, Jisheng Bai, Dongyuan Shi, Woon-Seng Gan, Jianfeng Chen

This paper presents a detailed description of our proposed methods for the ICASSP 2024 Cadenza Challenge.

Interactive Dual-Conformer with Scene-Inspired Mask for Soft Sound Event Detection

no code implementations23 Nov 2023 Han Yin, Jisheng Bai, Mou Wang, Dongyuan Shi, Woon-Seng Gan, Jianfeng Chen

In this paper, we first propose an interactive dual-conformer (IDC) module, in which a cross-interaction mechanism is applied to effectively exploit the information from soft labels.

Event Detection Sound Event Detection

Partially Randomizing Transformer Weights for Dialogue Response Diversity

no code implementations18 Nov 2023 Jing Yang Lee, Kong Aik Lee, Woon-Seng Gan

Despite recent progress in generative open-domain dialogue, the issue of low response diversity persists.

An Empirical Bayes Framework for Open-Domain Dialogue Generation

no code implementations18 Nov 2023 Jing Yang Lee, Kong Aik Lee, Woon-Seng Gan

To engage human users in meaningful conversation, open-domain dialogue agents are required to generate diverse and contextually coherent dialogue.

Dialogue Generation

Preliminary investigation of the short-term in situ performance of an automatic masker selection system

no code implementations15 Aug 2023 Bhan Lam, Zhen-Ting Ong, Kenneth Ooi, Wen-Hui Ong, Trevor Wong, Karn N. Watcharasupat, Woon-Seng Gan

Soundscape augmentation or "masking" introduces wanted sounds into the acoustic environment to improve acoustic comfort.

Active Noise Control based on the Momentum Multichannel Normalized Filtered-x Least Mean Square Algorithm

no code implementations7 Aug 2023 Dongyuan Shi, Woon-Seng Gan, Bhan Lam, Shulin Wen, Xiaoyi Shen

Multichannel active noise control (MCANC) is widely utilized to achieve significant noise cancellation area in the complicated acoustic field.

Practical Active Noise Control: Restriction of Maximum Output Power

no code implementations20 Jul 2023 Woon-Seng Gan, Dongyuan Shi, Xiaoyi Shen

This paper presents some recent algorithms developed by the authors for real-time adaptive active noise (AANC) control systems.

A Computation-efficient Online Secondary Path Modeling Technique for Modified FXLMS Algorithm

no code implementations20 Jun 2023 Junwei Ji, Dongyuan Shi, Woon-Seng Gan, Xiaoyi Shen, Zhengding Luo

This paper proposes an online secondary path modelling (SPM) technique to improve the performance of the modified filtered reference Least Mean Square (FXLMS) algorithm.

MOV-Modified-FxLMS algorithm with Variable Penalty Factor in a Practical Power Output Constrained Active Control System

no code implementations15 Jun 2023 Chung Kwan Lai, Dongyuan Shi, Bhan Lam, Woon-Seng Gan

Practical Active Noise Control (ANC) systems typically require a restriction in their maximum output power, to prevent overdriving the loudspeaker and causing system instability.

Active Noise Control in The New Century: The Role and Prospect of Signal Processing

no code implementations2 Jun 2023 Dongyuan Shi, Bhan Lam, Woon-Seng Gan, Jordan Cheer, Stephen J. Elliott

Since Paul Leug's 1933 patent application for a system for the active control of sound, the field of active noise control (ANC) has not flourished until the advent of digital signal processors forty years ago.

Real-time modelling of observation filter in the Remote Microphone Technique for an Active Noise Control application

no code implementations21 Mar 2023 Chung Kwan Lai, Bhan Lam, Dongyuan Shi, Woon-Seng Gan

The remote microphone technique (RMT) is often used in active noise control (ANC) applications to overcome design constraints in microphone placements by estimating the acoustic pressure at inconvenient locations using a pre-calibrated observation filter (OF), albeit limited to stationary primary acoustic fields.

Implementing Continuous HRTF Measurement in Near-Field

no code implementations15 Mar 2023 Ee-Leng Tan, Santi Peksi, Woon-Seng Gan

Hence, a significant number of HRTF measurements at different distances in the NF would be needed.

A practical distributed active noise control algorithm overcoming communication restrictions

no code implementations15 Mar 2023 Junwei Ji, Dongyuan Shi, Zhengding Luo, Xiaoyi Shen, Woon-Seng Gan

By assigning the massive computing tasks of the traditional multichannel active noise control (MCANC) system to several distributed control nodes, distributed multichannel active noise control (DMCANC) techniques have become effective global noise reduction solutions with low computational costs.

Deep Generative Fixed-filter Active Noise Control

2 code implementations10 Mar 2023 Zhengding Luo, Dongyuan Shi, Xiaoyi Shen, Junwei Ji, Woon-Seng Gan

Due to the slow convergence and poor tracking ability, conventional LMS-based adaptive algorithms are less capable of handling dynamic noises.

Performance Evaluation of Selective Fixed-filter Active Noise Control based on Different Convolutional Neural Networks

2 code implementations17 Aug 2022 Zhengding Luo, Dongyuan Shi, Woon-Seng Gan

In comparison to conventional fixed-filter ANC methods, SFANC can select the pre-trained control filters for different types of noise.

A Hybrid SFANC-FxNLMS Algorithm for Active Noise Control based on Deep Learning

3 code implementations17 Aug 2022 Zhengding Luo, Dongyuan Shi, Woon-Seng Gan

Owing to the effective combination of the two algorithms, experimental results show that the hybrid SFANC-FxNLMS algorithm can achieve a rapid response time, a low noise reduction error, and a high degree of robustness.

Implementation of Multi-channel Active Noise Control based on Back-propagation Mechanism

no code implementations17 Aug 2022 Zhengding Luo, Dongyuan Shi, Junwei Ji, Woon-Seng Gan

However, open-source implementations of the multi-channel FxLMS (McFxLMS) and multi-channel FxNLMS (McFxNLMS) algorithm continue to be scarce.

Assessment of a cost-effective headphone calibration procedure for soundscape evaluations

1 code implementation24 Jul 2022 Bhan Lam, Kenneth Ooi, Zhen-Ting Ong, Karn N. Watcharasupat, Trevor Wong, Woon-Seng Gan

To increase the availability and adoption of the soundscape standard, a low-cost calibration procedure for reproduction of audio stimuli over headphones was proposed as part of the global ``Soundscape Attributes Translation Project'' (SATP) for validating ISO/TS~12913-2:2018 perceived affective quality (PAQ) attribute translations.

Attribute Audio Emotion Recognition +1

Do uHear? Validation of uHear App for Preliminary Screening of Hearing Ability in Soundscape Studies

1 code implementation16 Jul 2022 Zhen-Ting Ong, Bhan Lam, Kenneth Ooi, Karn N. Watcharasupat, Trevor Wong, Woon-Seng Gan

Hence, in this study, we investigate the effectiveness of the uHear app, an iOS application, as an affordable and automatic alternative to a conventional audiometer in screening participants for hearing loss for the purpose of soundscape studies or listening tests in general.

Medical Diagnosis

Singapore Soundscape Site Selection Survey (S5): Identification of Characteristic Soundscapes of Singapore via Weighted k-means Clustering

1 code implementation7 Jun 2022 Kenneth Ooi, Bhan Lam, Joo Young Hong, Karn N. Watcharasupat, Zhen-Ting Ong, Woon-Seng Gan

We then performed weighted k-means clustering on the selected locations, with weights for each location derived from previous frequencies and durations spent in each location by each participant.

Selection bias Unsupervised Spatial Clustering

Preliminary assessment of a cost-effective headphone calibration procedure for soundscape evaluations

no code implementations10 May 2022 Bhan Lam, Kenneth Ooi, Karn N. Watcharasupat, Zhen-Ting Ong, Yun-Ting Lau, Trevor Wong, Woon-Seng Gan

Preliminary experiments found that calibration with the OCV method differed significantly from the reference binaural recordings in sound pressure levels, whereas negligible differences in levels were observed with the HATS calibration.

Deployment of an IoT System for Adaptive In-Situ Soundscape Augmentation

no code implementations29 Apr 2022 Trevor Wong, Karn N. Watcharasupat, Bhan Lam, Kenneth Ooi, Zhen-Ting Ong, Furi Andi Karnapi, Woon-Seng Gan

Soundscape augmentation is an emerging approach for noise mitigation by introducing additional sounds known as "maskers" to increase acoustic comfort.

Cloud Computing

Autonomous In-Situ Soundscape Augmentation via Joint Selection of Masker and Gain

no code implementations29 Apr 2022 Karn N. Watcharasupat, Kenneth Ooi, Bhan Lam, Trevor Wong, Zhen-Ting Ong, Woon-Seng Gan

The selection of maskers and playback gain levels in a soundscape augmentation system is crucial to its effectiveness in improving the overall acoustic comfort of a given environment.

Design and Evaluation of Active Noise Control on Machinery Noise

no code implementations2 Nov 2021 Shulin Wen, Duy Hai Nguyen, Miqing Wang, Woon-Seng Gan

Construction workers and residents live near around construction sites are exposed to noises that might cause hearing loss, high blood pressure, heart disease, sleep disturbance and stress.

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