Jose Nicholas Francisco

Product Marketing Manager

Jose is a Developer Advocate at Deepgram, aiming to explain and demystify the inner workings of AI. He has a background in software engineering, with projects focused on fraud detection and prevention. Jose earned a bachelor's and master's degree in computer science, with a focus on artificial intelligence, from Stanford University. He currently lives in San Francisco with his friends.

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Jose Nicholas Francisco's Articles

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Article··AI Engineering & Research

TTS with emotion: emphasis and control in live conversations

Article··AI Engineering & Research

Voice AI telephony integration: carriers, SLAs and global rollout

Article··AI Engineering & Research

Voice agent function calling: real-time data lookup during a call

Featured Image for What is Speaker Diarization?
Article··AI Engineering & Research

What is Speaker Diarization?

Article··AI Engineering & Research

The Rise of PER: A New Standard for Measuring TTS Accuracy

Article··AI Engineering & Research

Voice agent testing: how to evaluate before you take real calls

Article··AI Engineering & Research

Speech prosody across languages: what transfers and what breaks

Article··AI Engineering & Research

Voice AI latency: why pauses read as hesitation

Article··AI Engineering & Research

Paralanguage in voice AI: a complete guide to paralinguistic cues

Article··AI Engineering & Research

Filler words in speech-to-text: retained vs clean output

Article··AI Engineering & Research

Turn detection in voice agents: silence timeouts vs VAD vs semantic models

Article··AI Engineering & Research

Emotional text-to-speech: how expressivity controls fix flat delivery

Article··AI Engineering & Research

Backchannels vs interruptions: Handling listener signals in voice agents

Article··AI Engineering & Research

The real-time voice AI stack for agents: An architecture guide

Article··AI Engineering & Research

AI Voice Agents vs. Human Agents: Metrics Compared

Article··AI Engineering & Research

Conversation Context for Voice Agents: What It Is and Why It Matters for Accuracy

Article··AI Engineering & Research

How to Evaluate Voice Quality Claims Across Text-to-Speech Providers

Article··AI Engineering & Research

The Voice Agent Architecture Guide: STT, LLM, and TTS Pipeline Design in 2026

Article··AI Engineering & Research

Automatic Speech Recognition vs Speech-to-Text: Key Differences and Use Cases