DIHARD III
Need a transcript, not a dataset? Drop the file here.
The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.
Hard diarization-in-the-wild challenge — 11 domains from courtrooms to maps.
Best for state-of-the-art diarization across 11 challenging domains (clinical, broadcast, courtroom, etc.). Pricing: paid.
What it is
DIHARD III is the third Diarization Hard challenge — 11 domains designed to stress-test diarization, including clinical interviews, courtrooms, maps task, and YouTube. License: LDC paid.
Watch out for: LDC license · paid for non-members · 11 conversation domains. Cite: Ryant et al., Interspeech 2021.
Install / use
Go to DIHARD III catalog.ldc.upenn.eduWhat people actually do with DIHARD III-style transcription
The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.
Features
| Speaker diarization | Yes |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 1 |
| HIPAA eligible | No |
DIHARD III vs Whipscribe
| Feature | DIHARD III | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | paid | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | Yes | Named in the summary, key quotes and chapters |
| Word timestamps | No | Yes |
| Streaming | No | No |
| Languages | 1 | 99 |
| Platforms | LDC | Web, API, MCP |
Alternatives to DIHARD III
Frequently asked about DIHARD III
How much does DIHARD III cost?
DIHARD III is a paid product. Pricing changes; verify on the vendor's own page before budgeting.
Does DIHARD III work on Mac, Windows and Linux?
DIHARD III runs on LDC. It is not listed for other platforms; check the vendor for anything beyond LDC.
How do I install DIHARD III?
Download the installer for your platform from https://catalog.ldc.upenn.edu/LDC2022S14 # LDC membership. No terminal needed.
How many languages does DIHARD III support?
DIHARD III lists 1 languages.
Does DIHARD III identify different speakers?
Yes — DIHARD III has speaker diarization, so a two-person interview comes back with each speaker labelled.
Does DIHARD III give word-level timestamps?
No — DIHARD III produces segment or sentence timing only, so subtitle cues can land mid-word.
Can DIHARD III transcribe live audio?
No — DIHARD III works on finished files, not a live stream.
Is DIHARD III HIPAA compliant?
DIHARD III does not claim HIPAA compliance. For PHI, run it on infrastructure you control or choose a service that will sign a BAA.
What are the limitations of DIHARD III?
LDC license · paid for non-members · 11 conversation domains. Cite: Ryant et al., Interspeech 2021.
Who is DIHARD III best for?
State-of-the-art diarization across 11 challenging domains (clinical, broadcast, courtroom, etc.).
Does DIHARD III run offline?
DIHARD III runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.
Can I use DIHARD III in the browser?
No — DIHARD III is a LDC application, not a web app. You install it rather than sign in to it.
Who makes DIHARD III?
DIHARD III is made by LDC / DIHARD organizers.
What kind of tool is DIHARD III?
In this directory DIHARD III is filed under dataset, benchmark as a open-source tool.
What are the alternatives to DIHARD III?
There is a side-by-side page at /tools/dihard3-alternatives comparing DIHARD III with the closest tools in the same category on price, platform and features.
Whipscribe is a hosted transcription 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.
Transcribe your recordings
Running DIHARD III yourself? Send the same file here and compare the transcript. Transcribe any language, any recording · Transcription services from $0.29 an hour · Transcribe from any meeting or recording platform · How to transcribe, step by step
Explore
All transcription tools · By language · By platform · By file format · How-to guides · Transcription services · Transcription API · Pricing
Long recording to get through?
One file up to 10 hours, as an upload or a link: see transcribing a long MP3 or M4A, how to transcribe a podcast and the SRT generator.
Comparing tools before you pay?
If you would rather pay a service than run software yourself: see an honest roundup of the best transcription services, the cheapest way to transcribe an hour of audio and our transcription service with prices and turnaround.