Substantive material of Yoloxóchitl Mixtec (Glottocode: yolo1241 | ISO 639-3 = xty) presented here was brought together over a period of just over 10 years by Jonathan D. Amith (PI) and Rey Castillo García a native speaker linguist from the community of Yoloxóchitl. Yolóxochitl Mixtec is spoken in four communities: Yoloxóchitl (16.83425, -98.65281), Arroyo Cumiapa (16.87529, -98.61537), Cuanacaxtitlán (16.79992, -98.63940), and Buena Vista (16.96232, -98.58078). It is one of 52 Mixtec languages as designated by Glottocode and is particularly noteworthy for its high number of lexical tones on morae as the tone bearing unit (9 basic tones: four level tones from low [1] to high [4]; and 5 basic contour tones [13, 14, 43, 42, 32]). There are other uncommon lexical tones and inflectional morphology creates additional patterns. The greatest number of contrasts documented is 21 for the segmental sequence nama (which has a total of 24 words that vary only in tone).
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Production of the corpus was supported by the National Science Foundation, Documentation Endangered Languages program and the Endangered Language Documentation Programme (ELDP) at the School of Oriental and African Studes : 
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NSF Award 0966462, “Corpus and lexicon development: Endangered genres of discourse and domains of cultural knowledge in Tu’un ísaví (Mixtec) of Yoloxóchitl, Guerrero”; NSF Award 1500738, “Collaborative Research: Speech technology-enhanced annotation and training tool for Yoloxóchitl Mixtec (xty)”; NSF Award 1761421, “A corpus-based, comparative, and multi-media lexicosemantic resource for Yoloxóchitl Mixtec (xty)”. 
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ELDP Pilot project PPG0048, “Corpus and lexicon development: Endangered genres of discourse in Tu’un ísaví (Mixtec) of Yoloxóchitl, Guerrero”; ELDP Major Documentation Project MDP0201, “Corpus and lexicon development: Endangered genres of discourse and domains of cultural knowledge in Tu’un ísaví (Mixtec) of Yoloxóchitl, Guerrero”. 
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All material is made available under the Creative Common license CC BY-SA (Attribution-ShareAlike). Please cite or use any material as follows (Corresponding author is  jonamith@gmail.com). 
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Amith, Jonathan D., and Rey Castillo Castillo. n.d. Audio corpus of Yoloxóchitl Mixtec with accompanying time-coded transcriptons in ELAN.
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For ASR corpus and corresponding baseline results, please cite (Corresponding author is  jonamith@gmail.com and jiatongs@andrew.cmu.edu)
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@inproceedings{shi2021leveraging,
  title={Leveraging End-to-End ASR for Endangered Language Documentation: An Empirical Study on Yol{\'o}xochitl Mixtec},
  author={Shi, Jiatong and Amith, Jonathan D and Garc{\'\i}a, Rey Castillo and Sierra, Esteban Guadalupe and Duh, Kevin and Watanabe, Shinji},
  booktitle={Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume},
  pages={1134--1145},
  year={2021}
}