American English Full-Duplex Two-Speaker Conversational Dataset
MarketplaceTwo-speaker American English conversations captured in full-duplex stereo, covering everyday topics with overlapping speech, backchannels, and natural disfluencies preserved.
Overview
Naturalistic, two-speaker American English conversations captured at studio quality in full-duplex stereo. Pairs of native American English speakers from across the continental United States, with balanced coverage of West Coast, Midwest, Southern, and Northeast accents discuss everyday topics for the full duration of the session — no read scripts, no scene cuts. Each recording preserves real overlapping speech, backchannels, hesitations, and code-switching, so downstream models train on the way American English actually sounds in the wild. Every clip is collected from paid contributors with explicit consent, scene-level provenance, and metadata for speaker demographics, dialect, and acoustic environment.
Key highlights
- 01
West Coast, Midwest, Southern, and Northeast accents balanced across paired sessions, with explicit dialect tags per speaker.
- 02
Casual American discourse markers ("like", "you know", "I mean"), filled pauses, and false starts preserved verbatim — not normalised away.
- 03
Sports references, pop culture, work culture, and political discourse drawn from real two-speaker conversations rather than read scripts.
Technical specifications
Coverage
Hundreds of paired sessions from native American English speakers across the United States — coverage extends to bespoke dialects, age groups, and topical targets on request.
Capture specs
Stereo full-duplex audio at 48 kHz / 24-bit per channel from studio-grade microphones, with per-speaker channel isolation, calibrated noise floor, and continuous capture for the full lifespan of each session — not cherry-picked moments.
Annotations
Speaker / expert metadata shipped with every session: age, gender, region, dialect, native language, and acoustic environment. Annotations available at request.
Use cases
- Full-duplex conversational AI training and evaluation
- Speaker diarization and American English ASR / TTS modelling
- Turn-taking, backchannel, and overlap-handling research
- Voice agent benchmarks for natural, multi-party conversation
Request samples
Share your use case and we'll send sample clips, pricing, and recommended next steps for your pipeline.
More datasets
Full-Duplex Conversational Audio
French Full-Duplex Conversation Dataset
Naturalistic French conversations between native speakers, captured in full-duplex stereo with overlapping speech and authentic turn-taking.
Full-Duplex Conversational Audio
Mandarin Full-Duplex Conversation Dataset
Native-speaker Mandarin Chinese conversations recorded in full-duplex stereo across mainland and overseas dialect regions.
Full-Duplex Conversational Audio
Spanish Full-Duplex Conversation Dataset
Two-speaker Spanish conversations spanning Latin American and European dialects, captured in stereo full-duplex with natural overlap.
Full-Duplex Conversational Audio
Vietnamese Full-Duplex Conversation Dataset
Native Vietnamese conversations captured in full-duplex stereo, with North-Central-South dialect coverage and natural turn-taking.