CallHome English
by LDC
60h of unscripted home-telephone conversations — diarization + ASR benchmark.
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Drop your audio. Transcript in seconds. First transcript free, then $4 = 300 min
TL;DR
Best for conversational diarization + ASR with informal-register telephone speech. Pricing: paid.
Category
Open source
License
—
Stars
—
Last push
—
Pricing
paid
Platforms
LDC
What it is
The CallHome series is 30-minute spontaneous calls between family/friends across 6 languages. Standard conversational-diarization benchmark. LDC paid.
Best for: Conversational diarization + ASR with informal-register telephone speech.
Watch out for: LDC license · paid · CallHome ships in English / Mandarin / Spanish / Japanese / German / Arabic. Cite: Canavan et al., 1997.
Watch out for: LDC license · paid · CallHome ships in English / Mandarin / Spanish / Japanese / German / Arabic. Cite: Canavan et al., 1997.
Install / use
Go to CallHome English catalog.ldc.upenn.eduFeatures
| Speaker diarization | Yes |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 6 |
| HIPAA eligible | No |
CallHome English vs Whipscribe
| Feature | CallHome English | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | paid | $4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup |
| Speaker diarization | Yes | Yes |
| Word timestamps | No | Yes |
| Streaming | No | No |
| Languages | 6 | 99 |
| Platforms | LDC | Web, API, MCP |
Alternatives to CallHome English
Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.