Common Voice Scripted Speech 24.0 - Losso
License:
CC0-1.0
Steward:
Common Voice
Task: ASR
Release Date: 12/5/2025
Format: MP3
Size: 205.70 MB
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Description
A collection of scripted spoken phrases in Losso.
Specifics
Considerations
Forbidden Usage
It is forbidden to attempt to determine the identity of speakers in the common Voice datasets. It is forbidden to re-host or re-share this dataset
Processes
Intended Use
This dataset is intended to be used for training and evaluating automatic speech recognition (ASR) models. It may also be used for applications relating to computer-aided language learning (CALL) and language or heritage revitalisation.
Metadata
Nawdem — Nawdm / Losso (nmz)
This datasheet is for version 24.0 of the the Mozilla Common Voice Scripted Speech dataset
for Losso (nmz). The dataset contains 14120 clips representing 11.6 hours of recorded
speech (11.25 hours validated) from 35 speakers.
Language
Nawdm (also known as Nawdem, Losso, Losu, Naoudem) is a Gur language spoken in northern Togo and southern Ghana. It belongs to the Niger‑Congo family, under the Oti‑Volta subgroup. The language is used in daily communication, religious texts, poetry, oral tradition, and common expressions.
Demographic information
The dataset includes the following distribution of age and gender.
Gender
Self-declared gender information, percentage refers to the number of clips annotated with this gender.
| Gender | Percentage |
|---|---|
| Undefined | 99.0% |
| Female Feminine | 1.0% |
Age
Self-declared age information, percentage refers to the number of clips annotated with this age band.
| Age Band | Percentage |
|---|---|
| Undefined | 92.0% |
| Thirties | 8.0% |
Text corpus
Text domains
| Domain | Count |
|---|---|
| Undefined | 14120 |
Writing system
Nawdm is a tonal language, with at least two level tones:
High tone: marked with an acute accent (á)
Low tone: marked with a grave accent (à)
Tone marking is not always used, typically reserved for pronouns, religious or formal texts.
Symbol table
Uppercase letters:
A B D E Ɛ F G Gw Gb H Ĥ I J K Kw Kp L M N Ny Ŋ Ŋm O Ɔ R S T U V W Y
Lowercase letters:
a b d e ɛ f g gw gb h ɦ i j k kw kp l m n ny ŋ ŋm o ɔ r s t u v w y
Sources
The dataset has been compiled from:
Religious texts and translations
Dictionaries of Nawdm
Common expressions collected from everyday life and fieldwork
Get involved!
To get more information about this dataset and find out how you can contribute, please take a look at the following links.
Community links
Common Voice Nawdm (nmz) page (link to be activated when available)
Contribute
Acknowledgements
Curators
Justin Bakoubolo
Guedela, PhD
Compiler / Coordinator
Justin Bakoubolo — supervised the compilation and coordination of the dataset.
Contact
Justin Bakoubolo <justin.bakoubolo@umbaji.org>
Funding
This dataset was partially funded by the Open Multilingual Speech Fund managed by Mozilla Common Voice.
Licence
This dataset is released under the Creative Commons Zero (CC‑0) licence.
By downloading this data, you agree not to identify individual speakers in the dataset.