Voice by Design: Human‑Quality AI Voices

Design, prototype, and ship branded voices with precise control over tone, pacing, and emotion—consistent across products, channels, and markets.

GET START

Welcome to Acme. Let’s set up your workspace in under a minute. I’ll guide you—one clear step at a time. Ready? Take a slow breath; we’ll keep it simple, friendly, and confident so every choice feels easy.

Alice | Brand Story Brian | Product Walkthrough

English

See Voice by Design in Motion

From voice brief to production‑ready assets.

Our agents tune prosody, timing, and mix.

You focus on experience,

we ensure fidelity to your brand.

One prompt, infinite brand‑safe variants.

One‑Sentence Voice Prototyping

Draft a voice brief, then auto‑generate dialogue, SFX, BGM, captions, and timing maps aligned to your design system and brand.

Crisp, confident ad read for a product launch

Emotion‑Rich, On‑Brand Voices

Voices with nuance, intensity, and life—dialed exactly to your tone guidelines.

Effortless Editing & Localization

Switch languages, adjust character voices and emotions, and restyle deliveries with a single command.

editing interface with timeline bars for subtitle, video, dialogue, BGM, SFX. Image height is 300 and width is 600

How to use Voice by Design

STEP 1

Define Your Voice Brief

Outline audience, brand attributes (e.g., warm, expert, playful), pacing, clarity, pronunciation rules, and sample lines. Add notes for emotion and pauses to guide the first pass.

STEP 2

Choose a Model, Voice & Style

Select a base voice and style preset, then refine with controls for tone, emphasis, tempo, and breathing. Optionally add SSML or prompt cues. You can switch languages while preserving voice character.

STEP 3

Generate, Test & Ship

Click Generate to create takes, run quick A/B tests, tweak brief or timing, regenerate, then download WAV/MP3 or export SSML. Share for review and handoff to production with versioned presets.

Hear from the makers

From first-time storytellers to seasoned creators, these voices show how imagination turns into reality with Noiz.

Tried so many tools out there, and yours is hands down the best! The natural pauses and intonation make it sound like a real host.

AimsHigh

Podcast Producer

The pronunciation accuracy is insane, even for complex technical terms. My students say the videos are way easier to follow now.

JakeLee

YouTube Educator

Finally, a TTS that doesn't sound flat! The emotional range and breath sounds add so much life to the narration.

Guru

Audio Engineer

Target Audience

Product & Agent Teams

Bring your AI agents and apps to life with natural, on‑brand voice and video. Real‑time emotion and interaction powered by enterprise‑grade voice, video, and animation.

Audiobook & Long‑form

Turn manuscripts into captivating audiobooks in minutes. Multi‑voice casting, background sound, and expressive narration—fully automated and aligned to your brand.

Podcast & Shows

Launch podcasts without recording a word. Generate hosts, background music, and seamless dialogues—synced and ready to publish.

Video Dubbing

Translate your videos with natural lip‑sync. AI handles the voice, SFX, and emotion—upload the clip and get studio‑quality results.

Design Systems

Operationalize brand voice. Create reusable voice tokens, pronunciation rules, and style presets that scale across platforms and teams.

Short Video & Social

Create TikTok/Reels‑ready videos instantly. On‑brand voices, sound effects, and perfect timing—type a prompt and watch it go.

Frequently Asked Questions

Everything you need to know about Voice by Design and Noiz AI voice synthesis technology.