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License:
CC0-1.0
Steward:
Common Voice
Task: ASR
Release Date: 12/5/2025
Format: MP3
Size: 5.10 MB
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A collection of spontaneous spoken phrases in Latvian.
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
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.
lv)This datasheet is for version 2.0 of the the Mozilla Common Voice Spontaneous Speech dataset
for Latvian (lv). The dataset contains 23 clips representing 1 hours of recorded
speech (1 hours validated) from 6 speakers.
Latvian is an Baltic language belonging to the Indo-European language family. It is spoken in the Baltic region, and is the official language of Latvia as well as one of the official languages of the European Union. There are about 1.5 million native Latvian speakers in Latvia and 100,000 abroad. It uses the Latin alphabet with additional diacritical marks to represent specific sounds.
Prompts: 22
Duration: 0:15:01 [h:m:s]
Avg. Transcription Len: 152
Avg. Duration: 39.2[s]
Valid Duration: 46.908[s]
Total hours: 0.25[h]
Valid hours: 0.01[h]
Latvian alphabet is based on the Latin script and consists of 33 letters, including special characters with diacritical marks such as ā, č, ē, ģ, ī, ķ, ļ, ņ, š, ū, and ž.
Historic texts also used letter /ŗ/, but use of it has been officially discontinued since 1946. This letter is equivalent to letter /r/ in modern Latvian orthography.
Letter /o/ can represent three different sounds [ua̯], [ɔ], [ɔː].
Letter /e/ can represent two different sounds [e], [æ].
a ā b c č d e ē f g ģ h i ī j k ķ l ļ m n ņ o p r s š t u ū v z ž
There follows a randomly selected sample of questions used in the corpus.
Kāda ir jūsu mīļākā latviešu dziesma, kāpēc?
Kas jūs iepriecina un iedvesmo?
Kā jūs priecājaties par savu mīļāko gadalaiku Latvijā?
There follows a randomly selected sample of transcribed responses from the corpus.
Mana mīlākā latviešu dziesma ir Opus Pro "Rozā lietus", jo viņa ir emocionāla, viņa ir ļoti dziļa, un viņa ir pilna ar mīlestību. Šī dziesma ļoti aizkustina, tāpēc arī šī ir mana mīļākā dziesma.
Mani iepriecina un iedvesmo labi cilvēki, kas ir enerģiski un dara kaut ko pozitīvu pasaulei un palīdz attīstīt balsu tehnoloģijas un visādas citādas labas lietas pasaulē.
Man patīk izbaudīt saulainas dienas, skatīties uz lapām, skatīties uz putniem, priecāties.
Each row of a tsv file represents a single audio clip, and contains the following information:
client_id - hashed UUID of a given user
audio_id - numeric id for audio file
audio_file - audio file name
duration_ms - duration of audio in milliseconds
prompt_id - numeric id for prompt
prompt - question for user
transcription - transcription of the audio response
votes - number of people that who approved a given transcript
age - age of the speaker1
gender - gender of the speaker1
language - language name
split - for data modelling, which subset of the data does this clip pertain to
char_per_sec - how many characters of transcription per second of audio
quality_tags - some automated assessment of the transcription--audio pair, separated by |
transcription-length - character per second under 3 characters per second
speech-rate - characters per second over 30 characters per second
short-audio - audio length under 2 seconds
long-audio - audio length over 30 seconds
Raivis Dejus <orvils@gmail.com>
This dataset is released under the Creative Commons Zero (CC-0) licence. By downloading this data you agree to not determine the identity of speakers in the dataset.
For a full list of age, gender, and accent options, see the demographics spec. These will only be reported if the speaker opted in to provide that information. ↩ ↩2