Add NGC links for Aligner and FastPitch

[redoctopus]

Signed-off-by: Jocelyn Huang jocelynh@nvidia.com

What does this PR do ?

Add option to load IPA-based checkpoints for FastPitch and the TTS Aligner.

Collection: TTS

Changelog

• Added one entry each to the Aligner model and FastPitch model NGC model loading.
• Did not add entries to the checkpoints table in the TTS documentation since they are new versions of existing model cards, and each entry in each checkpoint table is a single model card.

Usage

from nemo.collections.tts.models import AlignerModel, FastPitchModel

# IPA Aligner
aligner = AlignerModel.from_pretrained("tts_en_radtts_aligner_ipa")
# IPA FastPitch
fastpitch = FastPitchMode.from_pretrained("tts_en_fastpitch_ipa")

[XuesongYang]

Thanks. Could you also add this IPA aligner into NeMo doc and distinguish wit Arpabet? https://github.com/NVIDIA/NeMo/blob/main/docs/source/tts/data/ngc_models_aligner.csv

[redoctopus]

Thanks. Could you also add this IPA aligner into NeMo doc and distinguish wit Arpabet? https://github.com/NVIDIA/NeMo/blob/main/docs/source/tts/data/ngc_models_aligner.csv

I looked at that table earlier and wasn't quite sure how to distinguish it--they're on the same model card so all the fields would remain the same. Do you have a suggestion for how we could make it clearer in these tables?

[XuesongYang]

I looked at that table earlier and wasn't quite sure how to distinguish it--they're on the same model card so all the fields would remain the same. Do you have a suggestion for how we could make it clearer in these tables?

right, I remembered this. I saw you added a new entry in Versions section in the model card. Then We are good to merge. Let's keep this as an open discussion.

[XuesongYang]

LGTM.