Voice Generation
Speak in any voice you can imagine
Generate cinema-grade speech with expressive, lifelike delivery. Build entirely synthetic voices from a description and design sound effects on demand.
The Voice AI Platform for Production
Every Voice. 30+ Languages. Ready for Production.
From cinematic text to speech and instant voice cloning to real-time voice agents and multilingual dubbing. SonicVox is a unified AI ecosystem — built to ship voice, images, and video into production.
Text to Speech
Cinematic, broadcast-grade
Voice Cloning
10-second clone, multilingual
Real-Time Agents
Sub-300ms turn-taking
Lip-Synced Dubbing
Localize video end-to-end
Voice Design
Describe a voice, get it
Speech to Text
Industry-leading accuracy
Voice Changer
Real-time pitch & style
Subtitle Creation
Frame-accurate timing
Production-ready in 30+ languages — one platform, every workflow
EnglishSpanishMandarinJapaneseHindiArabicFrenchGermanPortugueseKoreanItalianTurkishRussianDutchPolishEnglishSpanishMandarinJapaneseHindiArabicFrenchGermanPortugueseKoreanItalianTurkishRussianDutchPolish
Every voice capability you need in one place
Six categories cover the full voice production stack — from generation to deployment.
Voice Cloning & Adaptation
Clone, change, and clean any voice
Zero-shot voice clones from 10 seconds of audio, real-time voice transformation, and one-pass voice cleanup that preserves identity.
Video & Dubbing
Localize video, lip-sync ready
End-to-end dubbing in 30+ languages with the original speaker's voice preserved, plus subtitle creation and burn-in.
Conversational AI
Real-time voice agents that ship
Sub-300ms turn-taking, full tool calls, brand-voice ready. Build, test, and deploy voice agents in days.
Audio Intelligence
Transcribe, separate, and analyze
Industry-leading transcription, multi-speaker separation, and quality scoring — production-ready in one pipeline.
Developer Platform
REST, streaming, SDKs, and webhooks
First-class SDKs in Node, Python, Go, Ruby. Streaming endpoints, webhooks, and batch processing.
17Production features
30+Languages supported
<300msReal-time latency
99.9%Uptime SLA
From idea to deployed voice in four steps
No DAW, no studio booking, no model training. Pick voices, drop in scripts, generate, export.
STEP 01
Pick a voice or describe one
Browse 100+ premium voices, design your own from a text prompt, or clone any voice from 10 seconds of audio.
STEP 02
Drop in your text or audio
Type a script, paste a transcript, upload audio, or stream a live source — same UX everywhere.
STEP 03
Direct the performance
Tune pitch, pace, and pauses with sliders. Or hand it to your real-time agent.
STEP 04
Export, stream, or call via API
Render to MP3/WAV/PCM, hit the streaming API, or wire to LiveKit for real-time conversations.
From script to studio-grade audio in seconds
Drop in your text, pick a voice, hit generate. The full production pipeline — pacing, emphasis, multilingual rendering — runs in a single pass.
Live · SonicVox Studio
VoiceAria — Cinematic
Welcome to SonicVox. Every voice. Every language. Every use case.
CinematicEN-US · 48 kHz · stereo
00:04 / 00:12
Streaming < 300ms30+ languages
Production audio, not demos
Every sample below was rendered by SonicVox. Tap a card to preview the visual signature of the take.
EN → ES
Cloned Voice — Multilingual
30 seconds of source audio cloned and re-spoken in Spanish with the original speaker's tone and cadence preserved.
SonicVox
0:09Real-time
Conversational Agent — Sales Call
Live agent handling an inbound discovery call with sub-300ms turn-taking, interruptions, and dynamic context awareness.
SonicVox
0:08EN-US
Cinematic Narration — Long-Form
Broadcast-grade long-form narration with natural breathing, dynamic emphasis, and the kind of pacing you'd expect from a recorded studio session.
SonicVox
0:10What happens on every agent call
Sub-300ms turn-taking, live reasoning, and tool calls — all in a single managed loop. Build a production agent in days, not quarters.
Inbound Call
Customer dials in or joins via web
Listen
Live transcription with sub-300ms latency
Reason
Understand intent, retrieve context, decide
Act
Call your CRM, calendar, or knowledge base
Respond
Reply in your brand voice — natural, on-brand
<300ms
Turn-taking latency
Unlimited
Tool calls per turn
Auto-scales
Concurrent calls
One API call to ship any voice, anywhere
REST and streaming endpoints, first-class SDKs, and webhooks. Generate audio in under 300ms — from your stack, in any language.
generate.ts
// Node 18+ — no SDK needed, the REST API is the SDK.import { writeFile } from "node:fs/promises"; const res = await fetch("https://sonicvox.ai/api/v1/text-to-speech", { method: "POST", headers: { "sv-api-key": process.env.SONICVOX_API_KEY, "Content-Type": "application/json", }, body: JSON.stringify({ text: "Welcome to SonicVox.", voice_id: "VOICE_ID", // from GET /api/v1/voices output_format: "mp3", // mp3 · wav · opus · pcm }),}); await writeFile("welcome.mp3", Buffer.from(await res.arrayBuffer()));Response200 OK · 187ms TTFB
audio/mpeg · 48 kHz0:04 / 0:12
voicearia — cinematic
languageen-US
characters22
cost$0.0004
StreamingWebhooksBatchOn-prem
SDKs in Node, Python, Go, Ruby. REST, streaming, batch, and webhook endpoints.
Read the docs→Every team that touches voice
Audiobooks, podcasts, and video at scale
Narrate backlists in days. Localize episodes in every market. Translate video without losing the talent.
What teams shipping with SonicVox actually say
"We replaced our voice talent budget with SonicVox. The quality is indistinguishable from studio takes, and our turnaround dropped from weeks to hours."
Is
Illustrative scenario
Composite example — not a customer quote · Northwind Media
"Localizing our learning library used to take a quarter. With SonicVox we ship every module in eight languages on the day it goes live."
Is
Illustrative scenario
Composite example — not a customer quote · Gravitas Industries
"The voice editor finally treats voice like a real medium. Our editorial team can sculpt a take without ever touching a DAW."
Is
Illustrative scenario
Composite example — not a customer quote · Cadence Studios
Frequently asked questions
Cinematic, broadcast-grade. Most listeners can't distinguish a SonicVox take from a recorded studio session.
Get Started
Ship your first voice product — this week
10,000 free credits per month. Voice cloning and API access start on paid plans. No credit card required.
10,000 free characters / month Voice cloning on paid plans API access on paid plans No credit card required
