Tutorials

The best way to get started with NeMo is to start with one of our tutorials. They cover various domains and provide both introductory and advanced topics.

Speech AI

Most NeMo Speech AI tutorials can be run on Google’s Colab.

Running Tutorials on Colab

To run a tutorial:

1. Click the Colab link associated with the tutorial you are interested in from the table below.

2. Once in Colab, connect to an instance with a GPU by clicking Runtime > Change runtime type and selecting GPU as the hardware accelerator.

Speech AI Fundamentals

Title	GitHub / Colab URL
Getting Started: NeMo Fundamentals	NeMo Fundamentals
Getting Started: Audio translator example	Audio translator example
Getting Started: Voice swap example	Voice swap example
Getting Started: NeMo Models	NeMo Models
Getting Started: NeMo Adapters	NeMo Adapters
Getting Started: NeMo Models on Hugging Face Hub	NeMo Models on HF Hub

Automatic Speech Recognition (ASR) Tutorials

Title	GitHub / Colab URL
ASR with NeMo	ASR with NeMo
ASR with Subword Tokenization	ASR with Subword Tokenization
Offline ASR	Offline ASR
Online ASR Microphone Cache Aware Streaming	Online ASR Microphone Cache Aware Streaming
Online ASR Microphone Buffered Streaming	Online ASR Microphone Buffered Streaming
ASR CTC Language Fine-Tuning	ASR CTC Language Fine-Tuning
Intro to Transducers	Intro to Transducers
ASR with Transducers	ASR with Transducers
ASR with Adapters	ASR with Adapters
Speech Commands	Speech Commands
Online Offline Microphone Speech Commands	Online Offline Microphone Speech Commands
Voice Activity Detection	Voice Activity Detection
Online Offline Microphone VAD	Online Offline Microphone VAD
Speaker Recognition and Verification	Speaker Recognition and Verification
Speaker Diarization Inference	Speaker Diarization Inference
ASR with Speaker Diarization	ASR with Speaker Diarization
Online Noise Augmentation	Online Noise Augmentation
ASR for Telephony Speech	ASR for Telephony Speech
Streaming inference	Streaming inference
Buffered Transducer inference	Buffered Transducer inference
Buffered Transducer inference with LCS Merge	Buffered Transducer inference with LCS Merge
Offline ASR with VAD for CTC models	Offline ASR with VAD for CTC models
Self-supervised Pre-training for ASR	Self-supervised Pre-training for ASR
Multi-lingual ASR	Multi-lingual ASR
Hybrid ASR-TTS Models	Hybrid ASR-TTS Models
ASR Confidence Estimation	ASR Confidence Estimation
Confidence-based Ensembles	Confidence-based Ensembles

Text-to-Speech (TTS) Tutorials

Title	GitHub / Colab URL
Basic and Advanced: NeMo TTS Primer	NeMo TTS Primer
Basic and Advanced: TTS Speech/Text Aligner Inference	TTS Speech/Text Aligner Inference
Basic and Advanced: FastPitch and MixerTTS Model Training	FastPitch and MixerTTS Model Training
Basic and Advanced: FastPitch Finetuning	FastPitch Finetuning
Basic and Advanced: FastPitch and HiFiGAN Model Training for German	FastPitch and HiFiGAN Model Training for German
Basic and Advanced: Tacotron2 Model Training	Tacotron2 Model Training
Basic and Advanced: FastPitch Duration and Pitch Control	FastPitch Duration and Pitch Control
Basic and Advanced: FastPitch Speaker Interpolation	FastPitch Speaker Interpolation
Basic and Advanced: TTS Inference and Model Selection	TTS Inference and Model Selection
Basic and Advanced: TTS Pronunciation Customization	TTS Pronunciation Customization

Tools and Utilities

Title	GitHub / Colab URL
Utility Tools for Speech and Text: NeMo Forced Aligner	NeMo Forced Aligner
Utility Tools for Speech and Text: Speech Data Explorer	Speech Data Explorer
Utility Tools for Speech and Text: CTC Segmentation	CTC Segmentation

Text Processing (TN/ITN) Tutorials

Title	GitHub / Colab URL
Text Normalization Techniques: Text Normalization	Text Normalization
Text Normalization Techniques: Inverse Text Normalization with Thutmose Tagger	Inverse Text Normalization with Thutmose Tagger
Text Normalization Techniques: WFST Tutorial	WFST Tutorial