About the Book
Build dependable speech and multimodal systems from data to deployment with NeMo, Riva, Triton, and NIM.
Shipping ASR, TTS, and vision language features is hard because real traffic, latency budgets, and safety rules punish vague guidance. Teams need a concrete stack, tested workflows, and playbooks that hold up under load.
This book gives practitioners a practical path. Train with NeMo, serve with Triton and Riva, package stable APIs with NIM, and wire observability, safety, and rollout controls so your services stay reliable after launch.
Map the NVIDIA stack in production, NeMo for training, Riva for runtime, NIM for standard APIs, Triton for serving and metrics
Set up containers, GPU drivers, CUDA, and validation checks for a clean starting environment
Build NeMo manifests, create tarred WebDataset shards, and manage data versions for repeatable training
Apply text processing that works in products, PnC models for punctuation and case, grammar based ITN with Sparrowhawk
Choose and justify architectures, CTC and RNNT tradeoffs, FastConformer for short and long speech, Parakeet for multilingual, Canary for translation and timestamps
Design streaming with intent, lookahead, chunk size, and padding choices that balance latency and accuracy
Run NeMo 2 configs and NeMo Run cleanly, migrate experiments, track ablations, and keep results comparable
Evaluate with WER, CER, MER, and slice by accent, SNR, and channel so quality numbers reflect reality
Add diarization that operators can trust, VAD with MarbleNet, embeddings with TitaNet, and MSDD integration
Export for serving the right way, ONNX or TorchScript paths, TensorRT where appropriate, and Triton model repos that scale
Tune Riva streaming ASR, chunk and padding settings, punctuation and ITN options, diarization flags and limits
Stand up NIM ASR endpoints with an OpenAI compatible surface and autoscale them with Helm on Kubernetes
Build TTS that sounds right and runs fast, FastPitch with HiFi GAN or BigVGAN, voice cloning data, lexicons, SSML controls
Manage prosody and latency for streaming audio, set clause sizes and playback buffers that feel responsive
Protect your product, content safeguards in TTS, consent gates for data and cloning, redaction and retention policies
Measure what matters, Triton metrics in Prometheus and Grafana, practical alert rules that catch real issues
Load test with perf analyzer sweeps, batch and concurrency tuning, sequence batching for conversational traffic
Engineer reliability, fault injection and backpressure, graceful degradation under spikes and partial failures
Wire NeMo Guardrails around ASR, TTS, and VLM flows so outputs stay on policy
Watermark and detect audio with AudioSeal and formalize a detection pipeline
Understand licenses and terms, NVIDIA AI Enterprise scope, Riva EULA, and NGC usage expectations
Use production playbooks with SLOs, cost caps, and rollback guards that turn operations into repeatable steps
This is a code heavy guide with working Python, YAML, JSON, and Shell examples that you can adapt directly into real services.
Get the guide and build systems your users can rely on.
