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Yu Xi

9 accepted papers

2025

Neural Directed Speech Enhancement with Dual Microphone Array in High Noise Scenario

ICASSP 2025accepted

In multi-speaker scenarios, leveraging spatial features is essential for enhancing target speech. While with limited microphone arrays, developing a compact multi-channel speech enhancement system remains challenging, especially in extremely low signal-to-noise ratio (SNR) conditions. To tackle this…

Cited by 0SourceScholar
2025

Streaming Keyword Spotting Boosted by Cross-layer Discrimination Consistency

ICASSP 2025accepted

Connectionist Temporal Classification (CTC), a non-autoregressive training criterion, is widely used in online keyword spotting (KWS). However, existing CTC-based KWS decoding strategies either rely on Automatic Speech Recognition (ASR), which performs suboptimally due to its broad search over the a…

Cited by 0SourceScholar
2025

UniCodec: Unified Audio Codec with Single Domain-Adaptive Codebook

ACL 2025long

The emergence of audio language models is empowered by neural audio codecs, which establish critical mappings between continuous waveforms and discrete tokens compatible with language model paradigms. The evolutionary trends from multi-layer residual vector quantizer to single-layer quantizer are be…

2024

Contrastive Learning with Audio Discrimination for Customizable Keyword Spotting in Continuous Speech

ICASSP 2024accepted

Customizable keyword spotting (KWS) in continuous speech has attracted increasing attention due to its real-world application potential. While contrastive learning (CL) has been widely used to extract keyword representations, previous CL approaches all operate on pre-segmented isolated words and emp…

Cited by 0SourceScholar
2024

TDT-KWS: Fast and Accurate Keyword Spotting Using Token-and-Duration Transducer

ICASSP 2024accepted

Designing an efficient keyword spotting (KWS) system that delivers exceptional performance on resource-constrained edge devices has long been a subject of significant attention. Existing KWS search algorithms typically follow a frame-synchronous approach, where search decisions are made repeatedly a…

Cited by 0SourceScholar