1 citations · 1 across the 7 of their papers we have counts for
8 papers
How Robust Are Neural Audio Codecs for African Speech? A Multi-Task Benchmark and the Limits of Perceptual Quality
Chibuzor Okocha, Christan Earl Grant
Neural audio codecs enable low-bitrate speech compression and tokenization, yet their robustness on accented and multilingual speech remains under-evaluated. We benchmark seven ope…
Beyond Word Error Rate: A Switch Aware Evaluation of ASR and Audio Language Models on English Yoruba Code-Switched Speech
Chibuzor Okocha, Christan Earl Grant
Automatic speech recognition (ASR) systems and audio language models (audio LMs) now report low error rates on monolingual benchmarks, but their behavior on code switched speech in…
Reasoning Beyond Transcription: Audio Language Models on Child Stuttering Speech
Chibuzor Okocha, Christan Grant, Zoey Liu
Child speech differs from adult speech in acoustics, prosody, and linguistic structures. Speech disfluencies (such as repetitions) further challenge automatic understanding. While…
Dynamic Multi-Byte Prediction With Hierarchical Language Models
Abraham Toluwase Owodunni, Chibuzor Okocha, Christan Grant +2
Byte-level hierarchical language models (LMs) have recently emerged as a robust alternative to their popular counterparts that use subword tokenization. However, generating one byt…
Afrispeech Semantics: Evaluating Audio Semantic Reasoning in Spoken Language Models Across Domains and Accents
Chibuzor Okocha, Christan Grant
Audio language models (ALMs) are increasingly used for speech-based understanding, yet their ability to perform semantic reasoning beyond transcription, Text-to-Audio Retrieval, Ca…
Can large audio language models understand child stuttering speech? speech summarization, and source separation
Chibuzor Okocha, Maya Bakri, Christan Grant
Child speech differs from adult speech in acoustics, prosody, and language development, and disfluencies (repetitions, prolongations, blocks) further challenge Automatic Speech Rec…
Domain-Aware Speaker Diarization On African-Accented English
Chibuzor Okocha, Kelechi Ezema, Christan Grant
This study examines domain effects in speaker diarization for African-accented English. We evaluate multiple production and open systems on general and clinical dialogues under a s…
Afrispeech-Dialog: A Benchmark Dataset for Spontaneous English Conversations in Healthcare and Beyond
Mardhiyah Sanni, Tassallah Abdullahi, Devendra D. Kayande +9
Speech technologies are transforming interactions across various sectors, from healthcare to call centers and robots, yet their performance on African-accented conversations remain…