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Home > All Category Datasets > Speech Recognition Datasets > Korean Telephony Speech Dataset – 136 Hours of Spontaneous Calls

Korean Telephony Speech Dataset – 136 Hours of Spontaneous Calls

Korean telephony speech dataset
Korean telephone audio
telephone conversation Korean
call center voice dataset Korean
Korean spoken dialogue corpus
multilingual telephony dataset
Korean voice dataset
speech-to-text Korean phone call
spontaneous Korean speech data

This Korean Telephony Speech Dataset contains 136 hours of spontaneous dialogue recorded over phone calls. Covering over 20 real-life domains including customer service, e-commerce, finance, travel, and daily conversations, the dataset features natural two-speaker conversations collected via diverse telephony channels. Each sample is transcribed and annotated with speaker ID, gender, age, and other metadata. Data was collected from 216 native Korean speakers across different regions, enhancing model generalization. Ideal for automatic speech recognition (ASR), speaker diarization, and call center conversational AI systems. All data complies with GDPR, CCPA, and PIPL for responsible and legal AI development.

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SpecificationsSpecifications
Format
8kHz 8bit, a-law/u-law pcm, mono channel
Content category
Dialogue based on given topics
Recording condition
Low background noise (indoor)
Recording device
Telephony
Country
Korea(KOR)
Language(Region) Code
ko-KR
Language
Korean
Speaker
216 people in total, 44% male and 56% female
Features of annotation
Transcription text, timestamp, speaker ID, gender
Accuracy rate
Sentence accuracy rate(SAR) 95%
Sample Sample
  • Audio

    A 시리즈가 있고 또 무슨 Z 시리즈가 있고 이러지 않아?

  • Audio

    해외 직구.

  • Audio

    저는 예전부터 항상

  • Audio

    갤럭시만 썼던 것 같애요.

  • Audio

    그냥 아직 한국에는 안 팔아서 어디서 어디 엄마가 사주신 거거든요 그냥.

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