activity
20222026
most citedOpening the Black Box of wav2vec Feature Encoder

4 citations · 6 across the 22 of their papers we have counts for

collaborators

23 papers

cs.CL2026

Quantifying Consonant Contributions to Word Intelligibility via Acoustic Masking

Eunjung Yeo, Kwanghee Choi, Krupaben Kothadia +4

Consonants contribute unequally to whether a word is understood. Given the limited time available for therapy, ranking consonants by contribution to intelligibility helps prioritiz…

eess.AS2026

Language Orthogonalization of Self-Supervised Speech Representations for Cross-lingual Parkinson's Detection

Minu Kim, Eunjung Yeo, Kwanghee Choi +1

Self-supervised speech models (S3Ms) provide powerful representations for Parkinson's disease (PD) detection, making cross-lingual transfer attractive for languages lacking labeled…

eess.AS2026

Phone Segmentation and Recognition through Phonological Activation Mapping

Shikhar Bharadwaj, Kwanghee Choi, Stephen McIntosh +8

Phone segmentation and recognition are inherently related tasks, yet modern approaches typically model them separately. We argue that phonetic structure is already latent in the re…

cs.CL2026

Prosodic ABX: A Language-Agnostic Method for Measuring Prosodic Contrast in Speech Representations

Haitong Sun, Stephen McIntosh, Kwanghee Choi +3

Speech representations from self-supervised speech models (S3Ms) are known to be sensitive to phonemic contrasts, but their sensitivity to prosodic contrasts has not been directly…

eess.AS2026

Self-Supervised Speech Models Encode Phonetic Context via Position-dependent Orthogonal Subspaces

Kwanghee Choi, Eunjung Yeo, Cheol Jun Cho +2

Transformer-based self-supervised speech models (S3Ms) are often described as contextualized, yet what this entails remains unclear. Here, we focus on how a single frame-level S3M…

cs.CL2026

An Empirical Recipe for Universal Phone Recognition

Shikhar Bharadwaj, Chin-Jou Li, Kwanghee Choi +4

Phone recognition (PR) is a key enabler of multilingual and low-resource speech processing tasks, yet robust performance remains elusive. Highly performant English-focused models d…

cs.CL2026

Adapting Self-Supervised Speech Representations for Cross-lingual Dysarthria Detection in Parkinson's Disease

Abner Hernandez, Eunjung Yeo, Kwanghee Choi +12

The limited availability of dysarthric speech data makes cross-lingual detection an important but challenging problem. A key difficulty is that speech representations often encode…

cs.CL2026

Multilingual Dysarthric Speech Assessment Using Universal Phone Recognition and Language-Specific Phonemic Contrast Modeling

Eunjung Yeo, Julie M. Liss, Visar Berisha +1

The growing prevalence of neurological disorders associated with dysarthria motivates the need for automated intelligibility assessment methods that are applicalbe across languages…

eess.AS2026

[b] = [d] - [t] + [p]: Self-supervised Speech Models Discover Phonological Vector Arithmetic

Kwanghee Choi, Eunjung Yeo, Cheol Jun Cho +2

Self-supervised speech models (S3Ms) are known to encode rich phonetic information, yet how this information is structured remains underexplored. We conduct a comprehensive study a…

cs.CL2026

PRiSM: Benchmarking Phone Realization in Speech Models

Shikhar Bharadwaj, Chin-Jou Li, Yoonjae Kim +13

Phone recognition (PR) serves as the atomic interface for language-agnostic modeling for cross-lingual speech processing and phonetic analysis. Despite prolonged efforts in develop…

cs.CL2025

POWSM: A Phonetic Open Whisper-Style Speech Foundation Model

Chin-Jou Li, Kalvin Chang, Shikhar Bharadwaj +5

Recent advances in spoken language processing have led to substantial progress in phonetic tasks such as automatic speech recognition (ASR), phone recognition (PR), grapheme-to-pho…

cs.SD2025

Finding My Voice: Generative Reconstruction of Disordered Speech for Automated Clinical Evaluation

Karen Rosero, Eunjung Yeo, David R. Mortensen +3

We present ChiReSSD, a speech reconstruction framework that preserves children speaker's identity while suppressing mispronunciations. Unlike prior approaches trained on healthy ad…

cs.CL2025

CS-FLEURS: A Massively Multilingual and Code-Switched Speech Dataset

Brian Yan, Injy Hamed, Shuichiro Shimizu +24

We present CS-FLEURS, a new dataset for developing and evaluating code-switched speech recognition and translation systems beyond high-resourced languages. CS-FLEURS consists of 4…

cs.CL2025★ 1 cited

Towards Inclusive ASR: Investigating Voice Conversion for Dysarthric Speech Recognition in Low-Resource Languages

Chin-Jou Li, Eunjung Yeo, Kwanghee Choi +7

Automatic speech recognition (ASR) for dysarthric speech remains challenging due to data scarcity, particularly in non-English languages. To address this, we fine-tune a voice conv…

cs.CL2025

Leveraging Allophony in Self-Supervised Speech Models for Atypical Pronunciation Assessment

Kwanghee Choi, Eunjung Yeo, Kalvin Chang +2

Allophony refers to the variation in the phonetic realization of a phoneme based on its phonetic environment. Modeling allophones is crucial for atypical pronunciation assessment,…

cs.SD2024

Voice Biomarker Analysis and Automated Severity Classification of Dysarthric Speech in a Multilingual Context

Eunjung Yeo

Dysarthria, a motor speech disorder, severely impacts voice quality, pronunciation, and prosody, leading to diminished speech intelligibility and reduced quality of life. Accurate…

cs.CL2024

Dynamic-SUPERB Phase-2: A Collaboratively Expanding Benchmark for Measuring the Capabilities of Spoken Language Models with 180 Tasks

Chien-yu Huang, Wei-Chih Chen, Shu-wen Yang +77

Multimodal foundation models, such as Gemini and ChatGPT, have revolutionized human-machine interactions by seamlessly integrating various forms of data. Developing a universal spo…

cs.CL2023★ 1 cited

Comparison of L2 Korean pronunciation error patterns from five L1 backgrounds by using automatic phonetic transcription

Eun Jung Yeo, Hyungshin Ryu, Jooyoung Lee +2

This paper presents a large-scale analysis of L2 Korean pronunciation error patterns from five different language backgrounds, Chinese, Vietnamese, Japanese, Thai, and English, by…

cs.SD2023

Speech Intelligibility Assessment of Dysarthric Speech by using Goodness of Pronunciation with Uncertainty Quantification

Eun Jung Yeo, Kwanghee Choi, Sunhee Kim +1

This paper proposes an improved Goodness of Pronunciation (GoP) that utilizes Uncertainty Quantification (UQ) for automatic speech intelligibility assessment for dysarthric speech.…

cs.SD2022★ 4 cited

Opening the Black Box of wav2vec Feature Encoder

Kwanghee Choi, Eun Jung Yeo

Self-supervised models, namely, wav2vec and its variants, have shown promising results in various downstream tasks in the speech domain. However, their inner workings are poorly un…

cs.CL2022

Automatic Severity Classification of Dysarthric speech by using Self-supervised Model with Multi-task Learning

Eun Jung Yeo, Kwanghee Choi, Sunhee Kim +1

Automatic assessment of dysarthric speech is essential for sustained treatments and rehabilitation. However, obtaining atypical speech is challenging, often leading to data scarcit…

cs.CL2022

Cross-lingual Dysarthria Severity Classification for English, Korean, and Tamil

Eun Jung Yeo, Kwanghee Choi, Sunhee Kim +1

This paper proposes a cross-lingual classification method for English, Korean, and Tamil, which employs both language-independent features and language-unique features. First, we e…

cs.CL2022

Multilingual analysis of intelligibility classification using English, Korean, and Tamil dysarthric speech datasets

Eun Jung Yeo, Sunhee Kim, Minhwa Chung

This paper analyzes dysarthric speech datasets from three languages with different prosodic systems: English, Korean, and Tamil. We inspect 39 acoustic measurements which reflect t…