DATASET // SLAVIC-UKRAINIAN

Ukrainian Speech Datasets for Advanced ASR

The Ukrainian language presents unique acoustic and morphological hurdles—from 7-case declension to precise palatalization. We provide engineered corpora that solve for the distinction between [i] and [ɪ], the specific voiced glottal fricative [ɦ], and the complex fusional morphology of modern Ukrainian.

EXPLORE UKRAINIAN CORPUS REQUEST CUSTOM COLLECTION

Phonetic & Morphological Precision

01

Vowel Contrast [i] vs [и]

Unlike other Slavic languages, Ukrainian maintains a sharp distinction between /i/ and /ɪ/ (и). Our datasets provide high-density samples for fine-tuning acoustic models on these high-front vowel boundaries.

02

Palatalization Modelling

Consistent soft consonant (palatalization) modeling is critical. We provide verbatim transcripts with precise phonetic tagging for dental consonants (д, т, з, с, ц, л, н) in soft environments.

03

7-Case Morphological Alignment

Ukrainian's fusional morphology and 7-case system (including the Vocative) demand large vocabularies. Our data is balanced across all grammatical forms to ensure OOV (Out-of-Vocabulary) reduction.

Kyiv Independence Square Architecture

Regional Variants

We collect across the full linguistic spectrum of Ukraine to ensure robustness against Western influences, Northern features, and Steppe variants.

VARIANT // WESTERN (GALICIAN)

Western Ukrainian (Lviv)

Influenced by Western Slavic proximity. Features specific phonetic shifts and unique lexical items. Essential for regional navigation and local service ASR.

  • Dialectal Lexis Included
  • Specific Vowel Timbres
VARIANT // CENTRAL (KYIV)

Standard Ukrainian

The foundation of media and official communication. Our standard corpus covers high-frequency vocabulary with balanced gender and age distribution.

  • Media-Ready Accuracy
  • 1,000+ Unique Speakers
VARIANT // SOUTH-EAST (STEPPE)

Steppe & South-East

Capturing the unique linguistic landscape of the South and East. Data includes spontaneous speech to handle naturalistic variation and Surzhyk edge cases.

  • Spontaneous Flow
  • Edge-Case Robustness
Lviv Old Town Street Photography

Western Corridor Data

LOCATION // LVIV_OBLAST

Dataset Architecture

{
  "dataset": "Ukrainian-Speech-Core-2026",
  "metadata": {
    "languages": ["uk-UA"],
    "phonetic_tagging": ["X-SAMPA", "IPA"],
    "morphology": "7-Case Fulfilment",
    "palatalization_index": "Verified"
  },
  "content": {
    "audio_format": "WAV 48kHz / 24-bit",
    "transcription": "Human Verbatim",
    "alignment": "Phoneme-level",
    "dialects": {
      "central": "40%",
      "western": "30%",
      "steppe": "20%",
      "polissian": "10%"
    }
  }
}

Scale Your Slavic ASR Precision

Connect with our linguistic engineers to discuss custom collection in Ukrainian, Polish, Czech, and other Slavic variants.