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\`{I}r\`{o}y\`{i}nSpeech: A multi-purpose Yor\`{u}b\'{a} Speech Corpus

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arxiv 2307.16071 v2 pith:XQQ63AR6 submitted 2023-07-29 cs.CL cs.SDeess.AS

Tolulope Ogunremi , Kola Tubosun , Anuoluwapo Aremu , Iroro Orife , David Ifeoluwa Adelani This is my paper
classification cs.CLcs.SDeess.AS
keywords speechdatahoursvoicecommoncorpuscuratedmozilla
verification ladder T0 review T1 audit T2 compute T3 formal
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We introduce \`{I}r\`{o}y\`{i}nSpeech, a new corpus influenced by the desire to increase the amount of high quality, contemporary Yor\`{u}b\'{a} speech data, which can be used for both Text-to-Speech (TTS) and Automatic Speech Recognition (ASR) tasks. We curated about 23000 text sentences from news and creative writing domains with the open license CC-BY-4.0. To encourage a participatory approach to data creation, we provide 5000 curated sentences to the Mozilla Common Voice platform to crowd-source the recording and validation of Yor\`{u}b\'{a} speech data. In total, we created about 42 hours of speech data recorded by 80 volunteers in-house, and 6 hours of validated recordings on Mozilla Common Voice platform. Our TTS evaluation suggests that a high-fidelity, general domain, single-speaker Yor\`{u}b\'{a} voice is possible with as little as 5 hours of speech. Similarly, for ASR we obtained a baseline word error rate (WER) of 23.8.

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Cited by 2 Pith papers

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  1. The NaijaVoices Dataset: Cultivating Large-Scale, High-Quality, Culturally-Rich Speech Data for African Languages

    cs.CL 2025-05 conditional novelty 7.0 of 10

    NaijaVoices is a 1,838-hour, 5,455-speaker speech-text corpus for Igbo, Hausa, and Yoruba whose use in fine-tuning cuts Word Error Rates by 42-76% relative to unadapted baselines.

  2. A Situational Speech Synthesizer for Yoruba: System Design, Phonological Rule Architecture, and Orthographic Extensions for Contour

    cs.SD 2026-07 conditional novelty 6.0 of 10

    A deployed diphone synthesizer for Yoruba names is described, along with a proposed caron/circumflex notation for contour tones that is claimed perceptually equivalent to vowel gemination.

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