mlsanityData to 7 Oct 2026

Zambezi Voice: A Multilingual Speech Corpus for Zambian Languages

arXiv 2306.04428 ↗First posted 7 Jun 2023cs.CL cs.SD eess.AScited by 18

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Abstract (arXiv)

This work introduces Zambezi Voice, an open-source multilingual speech resource for Zambian languages. It contains two collections of datasets: unlabelled audio recordings of radio news and talk shows programs (160 hours) and labelled data (over 80 hours) consisting of read speech recorded from text sourced from publicly available literature books. The dataset is created for speech recognition but can be extended to multilingual speech processing research for both supervised and unsupervised learning approaches. To our knowledge, this is the first multilingual speech dataset created for Zambian languages. We exploit pretraining and cross-lingual transfer learning by finetuning the Wav2Vec2.0 large-scale multilingual pre-trained model to build end-to-end (E2E) speech recognition models for our baseline models. The dataset is released publicly under a Creative Commons BY-NC-ND 4.0 license and can be accessed via https://github.com/unza-speech-lab/zambezi-voice .

Key facts. Cited by 18 papers in the map (data through 7 Oct 2026). Builds on 19 of its 26 references that are in the map. First posted on arXiv 7 Jun 2023.

Builds on

19 of 26 references.

References · 19

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  3. 2020wav2vec 2.0: A Framework for Self-Supervised Learning of Speech Representationscited by 3,853
  4. 2018SentencePiece: A simple and language independent subword tokenizer and detokenizer for Neural Text Processingcited by 1,973
  5. 2019fairseq: A Fast, Extensible Toolkit for Sequence Modelingcited by 1,486
  6. 2019Common Voice: A Massively-Multilingual Speech Corpuscited by 1,358
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  12. 2019pyannote.audio: neural building blocks for speaker diarizationcited by 175
7 more
  1. 2020fairseq S2T: Fast Speech-to-Text Modeling with fairseqcited by 174
  2. 2021End-to-end speaker segmentation for overlap-aware resegmentationcited by 76
  3. 2021Using Radio Archives for Low-Resource Speech Recognition: Towards an Intelligent Virtual Assistant for Illiterate Userscited by 16
  4. 2021BembaSpeech: A Speech Recognition Corpus for the Bemba Languagecited by 14
  5. 2022Speech Resources in the Tamasheq Languagecited by 13
  6. 2023BIG-C: a Multimodal Multi-Purpose Dataset for Bembacited by 9
  7. 2022The Makerere Radio Speech Corpus: A Luganda Radio Corpus for Automatic Speech Recognitioncited by 5

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Citing papers per year: 2023: 5; 2024: 9; 2025: 4.

18 papers.

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  1. 2024AfriHuBERT: A self-supervised speech representation model for African languagescited by 17
  2. 2025Charting the Landscape of African NLP: Mapping Progress and Shaping the Road Aheadcited by 15
  3. 2024Meta Learning Text-to-Speech Synthesis in over 7000 Languagescited by 9
  4. 2023Joint Prediction and Denoising for Large-scale Multilingual Self-supervised Learningcited by 8
  5. 2025Voice of a Continent: Mapping Africa's Speech Technology Frontiercited by 4
  6. 2025Synthetic Voice Data for Automatic Speech Recognition in African Languagescited by 3
  7. 2023Self-supervised Adaptive Pre-training of Multilingual Speech Models for Language and Dialect Identificationcited by 2
  8. 2023Enhancing Multilingual Speech Recognition through Language Prompt Tuning and Frame-Level Language Adaptercited by 0
  9. 2023GMTR: Graph Matching Transformerscited by 0
  10. 2023DarkShot: Lighting Dark Images with Low-Compute and High-Qualitycited by 0
  11. 2024TRLS: A Time Series Representation Learning Framework via Spectrogram for Medical Signal Processingcited by 0
  12. 2024TEN-GUARD: Tensor Decomposition for Backdoor Attack Detection in Deep Neural Networkscited by 0
6 more
  1. 2024T-Pixel2Mesh: Combining Global and Local Transformer for 3D Mesh Generation from a Single Imagecited by 0
  2. 2024Strategic Arms with Side Communication Prevail Over Low-Regret MAB Algorithmscited by 0
  3. 2024Towards General Deepfake Detection with Dynamic Curriculumcited by 0
  4. 2024Attr-Int: A Simple and Effective Entity Alignment Framework for Heterogeneous Knowledge Graphscited by 0
  5. 2024AMPS: ASR with Multimodal Paraphrase Supervisioncited by 0
  6. 2025Mask6D: Masked Pose Priors For 6D Object Pose Estimationcited by 0