Russian Telephone Speech: 338 Hours from 460 Native Speakers

UniDataPro's collection features 338 hours of Russian telephone dialogues recorded from 460 native speakers across diverse topics. Updated in January 2026, the data is specifically formatted for automatic speech recognition (ASR) research and model training. It maintains a verified 98% Word Accuracy Rate for its transcriptions.

Use Cases

• Training automatic speech recognition (ASR) models using the audio files and text transcriptions
• Evaluating word error rates in telephone-based Russian speech-to-text systems
• Acoustic modeling for native Russian speech patterns across 460 different voices

Strengths

• 338 hours of audio recordings
• 98% Word Accuracy Rate (WAR) for transcriptions
• Includes 460 unique native speakers

Limitations

• Restricted to telephone-quality audio which may differ from high-fidelity studio recordings
• CC BY-NC-ND 4.0 license prohibits commercial use and derivative works
• Specific regional dialect distribution among the 460 speakers is not documented

Provenance

Source

UniDataPro

Collection Method

Recorded telephone dialogues from native speakers

Freshness

Last updated January 2026.

Geography

Russia