SPRING-INX
SPRING Lab, IIT MadrasSPRING-INX is a speech recognition corpus of about 2,000 hours of manually transcribed speech in ten Indian languages, from Assamese and Bengali to Punjabi and Tamil. Agencies recorded monologues and mock conversations across at least ten domains under common guidelines, and a KL University team checked quality. SPRING Lab at IIT Madras releases it per language, with ESPnet baseline recipes.
The Hugging Face repositories have empty cards, so the corpus is read from its paper; no Hindi repository was found.
Openness
2 medium confidence- license
- not-clearly-stated-on-card(cards and API metadata of all sixteen repositories carry no license
- access
- public(all repositories ungated)
- dataset_card
- no(cards contain only generated schema metadata)
Every language downloads without a gate, and the paper calls the release open source. No repository states a license, so the terms a reuser would rely on are not written down.
- https://arxiv.org/pdf/2310.14654 recorded 2026-09-24
"we are open sourcing SPRING-INX data"; "prepared for ASR system building in 10 Indian languages ... in the public domain"; no license named
- https://huggingface.co/api/datasets?author=SPRINGLab&limit=200 recorded 2026-09-24
SPRINGLab dataset listing with sixteen SPRING_INX_<language>_R1/R2 repositories; no Hindi
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Malayalam_R1 recorded 2026-09-24
gated: false; no license in cardData
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Tamil_R2 recorded 2026-09-24
gated: false; no license in cardData
- https://huggingface.co/datasets/SPRINGLab/SPRING_INX_Bengali_R2/raw/main/README.md recorded 2026-09-24
Card holds only dataset_info and configs front matter; no license or description
- https://huggingface.co/datasets/SPRINGLab/SPRING_INX_Malayalam_R1/raw/main/README.md recorded 2026-09-24
Card holds only dataset_info and configs front matter; no license or description
Adoption
2 high confidenceHugging Face downloads summed over the sixteen per-language repositories. Use through the ESPnet recipes or copies held elsewhere is not counted.
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Assamese_R1 recorded 2026-09-24
153 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Assamese_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Assamese_R2 recorded 2026-09-24
10 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Assamese_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Bengali_R1 recorded 2026-09-24
300 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Bengali_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Bengali_R2 recorded 2026-09-24
296 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Bengali_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Gujarati_R1 recorded 2026-09-24
94 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Gujarati_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Gujarati_R2 recorded 2026-09-24
169 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Gujarati_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Kannada_R1 recorded 2026-09-24
28 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Kannada_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Malayalam_R1 recorded 2026-09-24
550 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Malayalam_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Malayalam_R2 recorded 2026-09-24
69 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Malayalam_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Marathi_R1 recorded 2026-09-24
64 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Marathi_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Marathi_R2 recorded 2026-09-24
147 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Marathi_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Odia_R1 recorded 2026-09-24
341 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Odia_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Punjabi_R1 recorded 2026-09-24
60 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Punjabi_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Punjabi_R2 recorded 2026-09-24
283 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Punjabi_R2
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Tamil_R1 recorded 2026-09-24
100 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Tamil_R1
- https://huggingface.co/api/datasets/SPRINGLab/SPRING_INX_Tamil_R2 recorded 2026-09-24
191 downloads in the trailing 30 days for SPRINGLab/SPRING_INX_Tamil_R2
Capability
3 medium confidenceSPRING-INX supplies about two thousand hours of hand-transcribed speech in ten Indian languages, documented only by a short paper. No named model reports training on it, and IndicVoices covers all 22 scheduled languages with far more transcribed speech.
- https://arxiv.org/abs/2310.14654 recorded 2026-09-24
"about 2000 hours of legally sourced and manually transcribed speech data for ASR system building in Assamese, Bengali, Gujarati, Hindi, Kannada, Malayalam, Marathi, Odia, Punjabi and Tamil"
- https://arxiv.org/pdf/2310.14654 recorded 2026-09-24
Table 1: per-language hours from 61 (Assamese) to 420 (Bengali); ESPnet recipes at github.com/Speech-Lab-IITM
Verified 2026-09-24