Removes use of torchaudio and moves transforms inside of NeMo

[blisc]

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What does this PR do ?

Removes use of torchaudio.transforms and moves transforms inside of NeMo.
NOTE: we will use torchsquirm in nemo/collections/audio/metrics/squim.py and nemo/collections/tts/models/magpietts_preference_optimization.py

Collection: audio, asr, tts

Changelog

• Move frequently used torchaudio transform into NeMo

PR Type:

• New Feature
• Bugfix
• Documentation

[nithinraok]

Can we update or remove torchaudio references from following files as well:

• nemo/collections/tts/models/magpietts_preference_optimization.py
• docker/Dockerfile.speech
• scripts/installers/install_torchaudio_latest.sh
• docs/source/speechlm2/intro.rst
• nemo/collections/audio/metrics/squim.py

In following files they are being installed but not used. We can update them too.

• tutorials/00_NeMo_Primer.ipynb
• tutorials/01_NeMo_Models.ipynb
• tutorials/asr/Online_Offline_Microphone_VAD_Demo.ipynb
• tutorials/asr/Online_Offline_Speech_Commands_Demo.ipynb
• tutorials/asr/Streaming_Multitalker_ASR.ipynb
• tutorials/audio/speech_enhancement/BNR_Speech_enhancement_with_NeMo.ipynb
• tutorials/audio/speech_enhancement/Speech_Enhancement_with_NeMo.ipynb
• tutorials/speaker_tasks/ASR_with_SpeakerDiarization.ipynb
• tutorials/speaker_tasks/End_to_End_Diarization_Inference.ipynb
• tutorials/speaker_tasks/Speaker_Diarization_Inference.ipynb
• tutorials/speaker_tasks/Speaker_Identification_Verification.ipynb
• tutorials/speaker_tasks/Streaming_End_to_End_Diarization_Inference.ipynb

[nithinraok]

can we remove this option altogether?

[nithinraok]

I see from features.py FilterbankFeaturesTA doesn;t use torchaudio. I think we can remove this condition and default to FilterbankFeatures

[nithinraok]

why to remove these?

[blisc]

Causes a circular dependency if this stays in the init

[blisc]

Can we update or remove torchaudio references from following files as well:

• nemo/collections/tts/models/magpietts_preference_optimization.py
• docker/Dockerfile.speech
• scripts/installers/install_torchaudio_latest.sh
• docs/source/speechlm2/intro.rst
• nemo/collections/audio/metrics/squim.py

We do not have a replacement for SQIUM-MOS. I think we still need to keep the import check there. But we can remove it from the dockerfile and tutorials.