Japanese Conversational Speech
- 800+
- Hours
- 400+
- Speakers
- 2-channel
- Speaker separation
- Native
- Transcription QA
We typically reply within 24 hours
Stereo, multi-speaker Japanese conversations with the two sides of each call on separate left and right channels, transcribed and emotion-tagged by native reviewers.
Natural, open-domain Japanese conversations recorded between consenting adult speakers, with each side of the call captured on its own channel for clean two-party diarization. Sessions are unscripted, so models hear real turn-taking, overlap, backchannels, and spontaneous speech rather than read prompts. Speakers span major regions and a range of formality levels.
Every session is collected from paid contributors with signed consent, transcribed and checked by native speakers, and screened for personal information before delivery.
Highlights
- Stereo capture with left and right speaker separation for clean two-party diarization
- Natural, open-domain Japanese dialogue between consenting adults, not read scripts
- Verbatim native-speaker transcripts with speaker labels and utterance timestamps
- Utterance-level emotion and sentiment annotations available on request
- Consent-cleared and PII-reviewed before delivery
Topic and speaker coverage
Balanced across speakers, regions, and everyday topics. Speakers span major regions and a range of formality levels. Coverage extends to specific domains, accents, or demographic targets on request.
Capture and format
Stereo WAV at 16 kHz or higher (48 kHz available), one speaker per channel, recorded in low-noise environments. Both sides are time-aligned and segmented into utterances, with the full session retained rather than trimmed highlights.
Annotations
Verbatim native-speaker transcripts with speaker IDs and utterance timestamps as standard, plus optional emotion, sentiment, topic, and code-switching labels for Japanese on request.
Provenance
- Paid contributors with signed consent
- Native-speaker transcription and quality review
- PII reviewed and redacted before delivery
- Per-recording audit trail and licensable usage rights
Use cases
- ASR and speaker-diarization training for Japanese
- Conversational TTS and voice-agent development
- Emotion and sentiment recognition from speech
- Spontaneous-speech and code-switching research