TIMIT
TIMIT is a widely-used acoustic-phonetic speech corpus for English, designed for speech recognition research and development.
Score
30
User Rating
3.0
Free/Trial Support
Supported
Starting Price
$125/lifetime
Last Updated
Apr 23, 2026
Overview
What is TIMIT?
TIMIT is a joint project by MIT, SRI, and Texas Instruments, providing approximately five hours of English speech with time-aligned transcriptions. It includes recordings from 630 speakers across eight American English dialects, each reading ten phonetically rich sentences, and is used for acoustic-phonetic studies and automatic speech recognition systems.
What is TIMIT used for?
User Groups
Top Features
- Time-aligned transcriptions
- Broadband speech recordings
- Speaker metadata (gender, dialect, etc.)
- Phonetically rich sentences
- Hand-verified transcriptions
How to use TIMIT?
Access the corpus via web download from the Linguistic Data Consortium. Users can obtain data based on membership status (e.g., members may have free access, while non-members pay fees). The data includes speech waveforms, transcriptions, and speaker metadata for analysis in research or development projects.
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Pros & Cons
Pros
- High-quality verified data
- Widely used in speech research
- Includes diverse dialect coverage
- Free for members
Cons
- Limited to English language
- Older dataset from 1993
- Fees for non-members
Use Cases
- Speech recognition system development
- Acoustic-phonetic research
- Linguistic studies
- Educational purposes
TIMIT Pricing
Free PlanSubscription Plan
1993
$0/lifetimeFree for 1993 members
- Access to TIMIT corpus
- Web download
- Member benefits
Reduced
$125/lifetimeDiscounted one-time purchase
- Access to TIMIT corpus
- Web download
- Reduced fee license
Non
$250/lifetimeOne-time purchase for non-members
- Access to TIMIT corpus
- Web download
- Non-member license
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