Common Voice Scripted Speech 25.0 - Icelandic

License:

CC0-1.0

Steward:

Common Voice

Task: ASR

Release Date: 3/22/2026

Format: MP3

Size: 15.27 MB

Description

A collection of read speech recordings in Icelandic (Íslenska).

Specifics

Licensing

Creative Commons Zero v1.0 Universal (CC0-1.0)

https://spdx.org/licenses/CC0-1.0.html

Considerations

Restrictions/Special Constraints

None provided.

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

Íslenska — Icelandic (`is`)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Icelandic [Íslenska - is]. The dataset contains 414 clips representing 0.73 hours of recorded speech (0.19 hours validated) from 8 speakers, recorded from a text corpus of 5,196 sentences.

Language

Accents

Code	Accent	Clips	Speakers
-		344 (83.1%)	1 (12.5%)

Demographic information

The dataset includes the following self-declared age and gender distributions. A coverage summary is shown below each table.

Gender

Self-declared gender information. The table shows clip and speaker counts with percentages. Speakers who did not declare a gender are listed as Unspecified. A dash (-) indicates zero.

Code	Gender	Clips	Speakers
male_masculine	Male, masculine	15 (3.6%)	2 (25.0%)
female_feminine	Female, feminine	-	-
transgender	Transgender	-	-
non-binary	Non-binary	-	-
do_not_wish_to_say	Prefer not to say	-	-
-	Unspecified	399 (96.4%)	7 (87.5%)

Gender declared: 15 of 414 clips (3.6%), 1 of 8 speakers (12.5%)

Age

Self-declared age information. The table shows clip and speaker counts with percentages. Speakers who did not declare an age are listed as Unspecified. A dash (-) indicates zero.

Code	Age	Clips	Speakers
teens	Teens	-	-
twenties	Twenties	-	-
thirties	Thirties	254 (61.4%)	3 (37.5%)
fourties	Fourties	5 (1.2%)	1 (12.5%)
fifties	Fifties	-	-
sixties	Sixties	-	-
seventies	Seventies	-	-
eighties	Eighties	-	-
nineties	Nineties	-	-
-	Unspecified	155 (37.4%)	6 (75.0%)

Age declared: 259 of 414 clips (62.6%), 2 of 8 speakers (25.0%)

Data splits for modelling

Clip buckets

Bucket	Clips
Validated	109 (26.3%)
Invalidated	15 (3.6%)
Other	290 (70.0%)

Training splits

Split	Clips
Train	74 (67.9%)
Dev	-
Test	35 (32.1%)

Training split coverage: 109 of 109 validated clips (100.0%)

The dataset contains 109 validated, 15 invalidated, and 290 unresolved clips. The average clip duration is 6.425 seconds.

Text corpus

Validated sentences: 5,083

Category	Count
Unvalidated sentences	113
Pending sentences	113
Rejected sentences	-
Reported sentences	1

The corpus contains 5,196 sentences: 5,083 validated and 113 unvalidated (113 pending review, 0 rejected), with 1 reported for review.

Sample

There follows a randomly selected sample of five sentences from the corpus.

Bubbi Morthens, einn ástsælasti tónlistarmaður.
Síðast sást til vélarinnar frá Siglunesi og flaug hún þá lágflug undir skýjum.
Pund á við um ýmsa gjaldmiðla og mælieiningar.
Nútella er mjög vinsælt í Evrópu en töluvert minna í Norður-Ameríka.
Sunnan dalsins sáust skallaernir, haukar, uglur, gæsir, endur, himbrimar, gjóður og krákur.

Sources

Source	Sentences
sentence-collector	4,993 (98.2%)
Stjórnarskrá lýðveldisins Íslands	74 (1.5%)
Other	16 (0.3%)

Fields

Clips

Each row of a tsv file represents a single audio clip, and contains the following information:

client_id - hashed UUID of a given user
path - relative path of the audio file
text - supposed transcription of the audio
up_votes - number of people who said audio matches the text
down_votes - number of people who said audio does not match text
age - age of the speaker1
gender - gender of the speaker1
accents - accents of the speaker1
variant - variant of the language1
segment - if sentence belongs to a custom dataset segment, it will be listed here
prompt_upvotes - number of upvotes the sentence prompt received
prompt_reports - number of reports the sentence prompt received
is_edited - whether the clip's transcription has been edited

`validated_sentences.tsv`

The validated_sentences.tsv file contains one row per validated sentence in the text corpus:

sentence_id - unique identifier for the sentence
sentence - the sentence text
variant - the variant of the language
sentence_domain - the domain(s) the sentence belongs to
source - the source the sentence was collected from
is_used - whether the sentence is still in circulation for recording
clips_count - number of clips recorded for this sentence

`unvalidated_sentences.tsv`

The unvalidated_sentences.tsv file contains one row per unvalidated sentence in the text corpus:

sentence_id - unique identifier for the sentence
sentence - the sentence text
variant - the variant of the language
sentence_domain - the domain(s) the sentence belongs to
source - the source the sentence was collected from
up_votes - number of upvotes the sentence received
down_votes - number of downvotes the sentence received
status - current status of the sentence (pending or rejected)

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Licence

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.

Footnotes

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 ↩3 ↩4