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Upgrade NeMo ASR tutorials from Mozilla/CommonVoice to Google/FLEURS #15103

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nithinraok merged 2 commits intoNVIDIA-NeMo:mainfrom
KunalDhawan:update_datasets_nemo
Nov 21, 2025
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Upgrade NeMo ASR tutorials from Mozilla/CommonVoice to Google/FLEURS #15103
nithinraok merged 2 commits intoNVIDIA-NeMo:mainfrom
KunalDhawan:update_datasets_nemo

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Important

The Update branch button must only be pressed in very rare occassions.
An outdated branch is never blocking the merge of a PR.
Please reach out to the automation team before pressing that button.

What does this PR do ?

Our tutorial notebooks used Spanish (Multilang_ASR.ipynb) and Japanese (ASR_CTC_Language_Finetuning.ipynb) data from Mozilla Common Voice repository on HuggingFace. Unfortunately, mozilla-foundation/common_voice_3_0 and mozilla-foundation/common_voice_6_1 don't exist on HF anymore.
In this PR, we use google/fleurs to replace the common voice data, and add necessary data processing modules and scripts to correctly work with the new dataset.

Collection: ASR

Changelog

Following tutorials have been updated

  • Multilang_ASR.ipynb
  • ASR_CTC_Language_Finetuning.ipynb

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Additional Information

  • Related to # (issue)

…ommon voice 3.0 as that is no longer available

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
…d of mozilla common voice for japanese data as that is no longer available on HF

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
@nithinraok nithinraok added the r2.6.0 Cherry-pick label for the r2.6.0 release branch label Nov 21, 2025
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Fast merging them as they are notebooks. CC: @chtruong814

@nithinraok nithinraok merged commit 39709bd into NVIDIA-NeMo:main Nov 21, 2025
50 of 51 checks passed
chtruong814 pushed a commit that referenced this pull request Nov 21, 2025
…15103)

* updated Multilang_ASR.ipynb to use google/fleurs instead of mozilla common voice 3.0 as that is no longer available

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

* updated ASR_CTC_Language_Finetuning.ipynb to use google/fleurs instead of mozilla common voice for japanese data as that is no longer available on HF

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

---------

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
Signed-off-by: NeMo Bot <nemo-bot@nvidia.com>
nithinraok pushed a commit that referenced this pull request Nov 21, 2025
…15103) (#15107)

* updated Multilang_ASR.ipynb to use google/fleurs instead of mozilla common voice 3.0 as that is no longer available



* updated ASR_CTC_Language_Finetuning.ipynb to use google/fleurs instead of mozilla common voice for japanese data as that is no longer available on HF



---------

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
Signed-off-by: NeMo Bot <nemo-bot@nvidia.com>
Co-authored-by: Kunal Dhawan <kunaldhawan97@gmail.com>
quapham pushed a commit to quapham/NeMo that referenced this pull request Dec 16, 2025
…VIDIA-NeMo#15103)

* updated Multilang_ASR.ipynb to use google/fleurs instead of mozilla common voice 3.0 as that is no longer available

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

* updated ASR_CTC_Language_Finetuning.ipynb to use google/fleurs instead of mozilla common voice for japanese data as that is no longer available on HF

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

---------

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
Signed-off-by: quanpham <youngkwan199@gmail.com>
nune-tadevosyan pushed a commit to nune-tadevosyan/NeMo that referenced this pull request Mar 13, 2026
…VIDIA-NeMo#15103)

* updated Multilang_ASR.ipynb to use google/fleurs instead of mozilla common voice 3.0 as that is no longer available

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

* updated ASR_CTC_Language_Finetuning.ipynb to use google/fleurs instead of mozilla common voice for japanese data as that is no longer available on HF

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>

---------

Signed-off-by: Kunal Dhawan <kunaldhawan97@gmail.com>
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