Démarrage rapide
Ce guide couvre toutes les fonctionnalités de Synthesys :
- Commencer — Create your account and finish basic setup
- Comment utiliser les voix IA — Over 300 lifelike voices across 140 languages, ready in seconds
- Comment utiliser l'IA comme humain — More than 60 avatars filmed with real actors, no camera needed
- Comment utiliser Generate AI Media — A text-to-image engine for custom artwork and B-roll stills
- How to Use Face form — Turn your own footage into a reusable presenter avatar
- Comment utiliser Synthesys Lab — Early access to speech-to-speech and other experimental tools
- Comment utiliser la génération de texte en vidéo — A prompt or document becomes a script with matching scenes
- Comment utiliser l'assistance multilingue — Publish one video in more than 140 languages
- Comment utiliser les photos parlantes IA — Upload one photo and it moves, blinks and speaks
- Comment utiliser les traductions audio — Convert finished audio into another language without rewriting
Temps nécessaire : 5 minutes par fonctionnalité
Vous trouverez également dans ce guide : Conseils de pro | Erreurs courantes | Dépannage | Tarification | Alternatives
Pourquoi faire confiance à ce guide ?
I’ve used Synthesys for eight months and tested every feature covered here. This tutorial comes from real hands-on work, not vendor screenshots.
Synthesys is one of the strongest Vidéo IA generator platforms available today.
But most people only ever touch the voice tool.
This guide shows you how to use Synthesys end to end.
Step by step, with screenshots and the shortcuts I actually rely on.
Tutoriel Synthesys
This tutorial walks through every feature in order.
It runs from first login to the advanced methods power users lean on.
The core concepts are simple, and you need no animation knowledge to follow along.
Synthesys
Make studio-quality videos without a camera, a crew or a single retake. Synthesys gives you 60+ AI avatars, 300+ lifelike voices and 140 languages in one dashboard. Try it free — no account or card needed.
Premiers pas avec Synthesys
Before any feature works, finish this one-time setup.
Cela prend environ trois minutes.
Here’s my own walkthrough of the platform first:
Maintenant, décomposons chaque étape.
Étape 1 : Créez votre compte
Go to the Synthesys website and click Sign Up.
Enter your email and set a password.
✓ Point de contrôle: A confirmation email lands in your boîte de réception within a minute.
Étape 2 : Ouvrir le tableau de bord
Synthesys is cloud-based, so nothing gets downloaded.
It runs in the browser and needs a steady connection to render.
Voici à quoi ressemble le tableau de bord :
✓ Point de contrôle: The sidebar lists AI Voices, AI Humans and the media tools.
Step 3: Set Your Brand Kit
Open Settings and upload your logo, brand colours and fonts.
The Brand Kit then applies the same design to every video automatically.
✅ Terminé : Vous êtes prêt à utiliser n'importe quelle fonctionnalité ci-dessous.
Comment utiliser les voix IA de Synthesys
Voix IA lets you turn any written word into natural speech.
The library holds more than 300 ultra-lifelike voices across 140 languages.
Voici comment l'utiliser étape par étape.
Step 1: Open the Voices Tab
Log in and click AI Voices on the left sidebar.
Pick the language you want before you write anything.
Step 2: Paste Your Script
Drop your text into the editor box.
Add commas and full stops where you want the speaker to pause.
Voici à quoi cela ressemble :
✓ Point de contrôle: Your script sits in the editor with a word counter below it.
Étape 3 : Choisissez une voix et générez
Preview a few voices before you decide.
Click Generate, then download the file when the render has ended.
✅ Résultat : A clean voiceover file that sounds like a real human reading your copy.
💡 Conseil de pro : Assign different AI voices to specific lines inside one project. Two speakers commerce lines hold attention far better than one flat narrator.
How to Use Synthesys AI Human Avatars
Humains IA puts a presenter on screen without a camera or a studio.
Synthesys AI Studio offers more than 60 avatars built from footage of real actors.
Voici comment l'utiliser étape par étape.
Étape 1 : Parcourir la bibliothèque d’avatars
Open AI Humans and scroll the gallery.
Filter by gender, age range and clothing style.
Step 2: Match the Avatar to Your Purpose
A suited presenter suits finance content. A casual one suits tutorials.
Voici à quoi cela ressemble :
✓ Point de contrôle: The avatar preview loads with your chosen voice attached.
Step 3: Add Your Script and Render
Paste the script, pick a voice, then hit Generate.
Most clips finish in one to five minutes.
✅ Résultat : A talking-head video with no filming, no lighting and no retakes.
💡 Conseil de pro : Build a custom avatar of yourself in under 30 seconds. Familiar faces beat stock AI avatars for repeat viewers every time.
How to Generate Synthesys AI Media
Générer des médias IA creates custom visuals from a short text prompt.
Synthesys runs a text-to-image engine for artwork, backgrounds and B-roll stills.
Voici comment l'utiliser étape par étape.
Step 1: Write a Specific Prompt
Vague prompts give vague results.
Name the subject, the setting and the lighting.
For example: a bright office with soft window light.
Étape 2 : Choisir un style
Choose photoreal, illustration or 3D render.
Voici à quoi cela ressemble :
✓ Point de contrôle: A grid of image variations appears under the prompt box.
Étape 3 : Générer et comparer
The platform returns multiple versions of the same prompt.
Save the one that fits, then continue building your scene.
✅ Résultat : Original artwork you own, instead of stock photos everyone else uses.
💡 Conseil de pro : Try the Synthesys X Chrome Extension. It rebuilds any image you find online as an AI-modified version, cleared for commercial work.
How to Use Synthesys Face form
Face form builds a custom avatar from footage you record yourself.
Synthesys also offers an Avatar Builder if you would rather design one from scratch.
Voici comment l'utiliser étape par étape.
Step 1: Record a Short Clip
Film 30 seconds facing the camera in even light.
Keep your head still and your mouth clearly visible.
Étape 2 : Téléchargement et entraînement
Drop the file into Face form and wait for processing.
Voici à quoi cela ressemble :
✓ Point de contrôle: Your face shows up in the avatar list with a custom tag.
Étape 3 : Sauvegarder et réutiliser
Name the avatar so you can find it later.
It now appears beside the stock avatars in every project.
✅ Résultat : A presenter that looks like you, ready for unlimited future videos.
💡 Conseil de pro : Record in the exact clothes you want on screen. You cannot change the outfit after training, and reshooting wastes time.
Comment utiliser Synthesys Lab
Laboratoire Synthesys is where newer tools land before a full release.
The 2026 headline feature here is speech-to-speech, and it solves a real problem.
Voici comment l'utiliser étape par étape.
Step 1: Open the Lab Tab
You will find it below the main tools in the sidebar.
Labelled tools may change without notice.
Step 2: Record Your Own Delivery
Read the script aloud with the emphasis you want.
Voici à quoi cela ressemble :
✓ Point de contrôle: A waveform of your recording appears with a voice picker beside it.
Step 3: Swap in an AI Voice
Synthesys replaces your voice while maintaining your timing and speech patterns.
The emotional depth survives the swap.
✅ Résultat : AI narration that carries your own emphasis instead of flat text-to-speech.
💡 Conseil de pro : Use speech-to-speech for sarcasm, questions and punchlines. Plain text-to-speech reads those flat no matter how you punctuate.
How to Use Synthesys Text-to-Video Generator
Génération de texte en vidéo is the fastest route from idea to finished clip.
Feed it a prompt or upload a document, and artificial intelligence writes the script.
Voici comment l'utiliser étape par étape.
Step 1: Give It Source Material
Type a one-line prompt or upload a PDF.
A blog post or a book chapter both work fine.
Étape 2 : Examiner le script généré
The AI video generator drafts the copy and matches scenes to it.
Voici à quoi cela ressemble :
✓ Point de contrôle: A scene strip appears along the bottom of the AI video generator editor.
Step 3: Edit the Order and Render
Reorder scenes, cut weak lines, then generate.
Nothing is locked, so you can edit after the first render.
✅ Résultat : A full multi-scene AI video built from a single paragraph of input.
💡 Conseil de pro : Never ship the first draft word for word. The AI writes clean copy, but it misses your specific product details.
Comment utiliser le support multilingue de Synthesys
Assistance multilingue lets one recording reach a global audience.
Synthesys AI Studio supports video creation in more than 140 languages.
Voici comment l'utiliser étape par étape.
Step 1: Finish the Master Version
Build and approve your video in one language first.
Fixing errors later across 12 versions is the hard part.
Étape 2 : Sélectionner les langues cibles
Open the language menu and tick each market you want.
Voici à quoi cela ressemble :
✓ Point de contrôle: Each selected language shows as a separate render in your project list.
Step 3: Check the Timing
Translated lines run longer or shorter than the original.
Trim any scene where the voice overruns the visuals.
✅ Résultat : One script working across every market you sell into.
💡 Conseil de pro : clonage vocal copies your voice into 29 languages while maintaining its character. Your Spanish version still sounds like you.
Comment utiliser les photos parlantes de Synthesys AI
Photos parlantes IA turns a single still image into a moving presenter.
Upload a photo and Synthesys animates the face to match your audio.
Voici comment l'utiliser étape par étape.
Step 1: Upload a Clear Photo
Front-facing shots with both eyes visible work best.
Sunglasses and heavy shadows break the effect.
Step 2: Attach Your Audio
Pick a generated voice or upload your own recording.
Voici à quoi cela ressemble :
✓ Point de contrôle: The photo blinks and moves in the preview window.
Step 3: Render and Review
Watch the full clip before you export.
Check that the mouth lands on each syllable.
✅ Résultat : A speaking presenter built from one image in under a minute.
💡 Conseil de pro : Keep talking-photo clips under 45 seconds. The effect holds attention tôt, then small glitches start to show.
Comment utiliser les traductions audio Synthesys
Traductions audio converts finished audio into another language.
This is the fastest way to communicate with viewers who do not speak English.
Voici comment l'utiliser étape par étape.
Étape 1 : Téléchargez votre audio
Drop in an existing MP3 or WAV file.
Clean source audio translates far more accurately.
Step 2: Pick the Output Language
Choisissez votre langue cible dans le menu déroulant.
Voici à quoi cela ressemble :
✓ Point de contrôle: A translated transcript appears next to the original audio.
Step 3: Export the New Track
Download the translated file and drop it back into your video.
The process takes minutes, not days.
✅ Résultat : A second-language version of content you already published.
💡 Conseil de pro : Read the translated transcript before exporting. Product names and slang translate badly, and fixing them in text is quicker.
Astuces et raccourcis pour Synthesys Pro
After eight months inside Synthesys, these are the habits that saved me the most time.
To use Synthesys effectively, plan the script before you ever open the editor.
Raccourcis clavier
| Action | Raccourci |
|---|---|
| Lecture ou pause de l'aperçu | Barre d'espace |
| Annuler la dernière modification | Ctrl + Z |
| Dupliquer une scène | Ctrl + D |
| Enregistrer le projet | Ctrl + S |
Queue long renders in one batch so the platform works through them efficiently:
Fonctionnalités cachées que la plupart des gens ignorent
- Template variables: Swap a name or company field to bulk-generate a personalised video series from one master file.
- Multi-voice projects: Assign different voices to specific lines so a dialogue scene sounds like two real humans.
- Instant translation: Duplicate a finished project, switch the language, and you have a second market covered.
Erreurs courantes à éviter avec Synthesys
Mistake #1: Writing Like a Blog Post
❌ Faux : Pasting long written paragraphs straight into the script box.
✅ À droite : Write short spoken sentences. Read them aloud first and cut anything that trips you up.
Mistake #2: Making Videos Far Too Long
❌ Faux : Cramming every detail into one twelve-minute clip.
✅ À droite : Shorter videos get higher completion rates. Keep only the essential information and split the rest.
Mistake #3: Ignoring the Preview
❌ Faux : Rendering all language versions before checking the first one.
✅ À droite : Approve one master version, then translate. Fixing a script across twelve renders is pure frustration.
Dépannage de Synthesys
Problem: The Voice Mispronounces Names
Cause: The engine reads unusual spellings using standard language patterns.
Réparer: Spell the word phonetically in the script. Write “Fahim” as “Fa-heem” and it lands correctly.
Problem: Rendering Takes Too Long or Fails
Cause: Synthesys renders in the cloud, so a weak connection stalls the job.
Réparer: Split long projects into shorter scenes. Four short renders finish faster than one long one.
Problem: Lip-Sync Looks Slightly Off
Cause: Fast pacing and dense sentences are difficult for the avatar to match.
Réparer: Add commas to slow delivery. Balance the pace, then re-render that scene only.
📌 Note: If none of these fix your issue, contact Synthesys support.
Qu'est-ce que Synthesys ?
Synthesys is an AI video and voice platform.
It creates finished content without cameras, actors or studios.
Think of it like Canva, but for video and narration instead of graphics.
Teachers turn a book chapter into a lesson clip. Marketers turn a landing page into an ad.
Regardez ce bref aperçu :
Il comprend les fonctionnalités clés suivantes :
- Voix de l'IA : Over 300 lifelike voices across 140 languages, ready in seconds
- Humains IA : More than 60 avatars filmed with real actors, no camera needed
- Générer des médias IA : A text-to-image engine for custom artwork and B-roll stills
- Face form: Turn your own footage into a reusable presenter avatar
- Laboratoire Synthesys : Early access to speech-to-speech and other experimental tools
- Génération de vidéos à partir de texte : A prompt or document becomes a script with matching scenes
- Assistance multilingue : Publish one video in more than 140 languages
- Photos parlantes IA : Upload one photo and it moves, blinks and speaks
- Traductions audio : Convert finished audio into another language without rewriting
Compared with traditional methods, it cuts production cost and time sharply.
Every clip also comes out at the same quality, with no variation between takes.
Pour une analyse complète, consultez notre Avis sur Synthesys.
Tarification de Synthesys
Voici le coût de Synthesys en 2026 :
| Plan | Prix | Idéal pour |
|---|---|---|
| Personnel | 20 $/mois | Des créateurs indépendants testent l'IA vidéo |
| Créateur | 41 $/mois | Regular publishers who need commercial rights |
| Entreprise | 69 $/mois | Teams running multilingual campaigns |
Essai gratuit : Yes. You can test the generator with no account and no card details.
Garantie de remboursement : Refunds are handled case by case, so read the terms before you buy.
💰 Meilleur rapport qualité-prix : Creator at $41/month. It unlocks commercial use, which Personal does not.
Synthesys contre les alternatives
Comment Synthesys se compare-t-elle ? Voici le paysage concurrentiel :
| Outil | Idéal pour | Prix | Notation |
|---|---|---|---|
| Synthesys | Voice depth and value | 20 $/mois | ⭐ 3,8 |
| HeyGen | Lip-sync quality | 29 $/mois | ⭐ 4,7 |
| Synthesia | Équipes d'entreprise | 29 $/mois | ⭐ 4,7 |
| Colossian | Vidéos de formation | 27 $/mois | ⭐ 4,5 |
| Veed | Édition du navigateur | 19 $/mois | ⭐ 4,6 |
| Vidnoz | Niveau gratuit | 18 $/mois | ⭐ 4,4 |
| Fliki | Vitesse de conversion texte-vidéo | 28 $/mois | ⭐ 4,6 |
| A FAIT | Photos parlantes | 5 $/mois | ⭐ 4,5 |
Sélection rapide :
- Meilleur résultat global : HeyGen — the cleanest avatar movement on the market
- Meilleur budget : Vidnoz — a real free tier that produces usable clips
- Idéal pour les débutants : Synthesys — the editor is easy to follow from day one
- Best for voice work: Synthesys — 300+ voices and cloning across 29 languages
🎯 Alternatives à Synthesys
Vous cherchez des alternatives à Synthesys ? Voici les meilleures options :
- 🚀 HeyGen : Fast avatar videos with strong lip-sync and a slick editor.
- 💰 Synthesia : The enterprise standard, with polished avatars and heavy team controls.
- 🎨 Colossyan : Built for workplace training, with scenario-based scripts and quizzes.
- ⚡ Veed : A full browser editor with subtitles, trimming and stock media.
- 🔒 Elai : Turns blog posts and slides into presenter videos automatically.
- 🧠 Vidnoz : A generous free tier with hundreds of templates and avatars.
- 👶 Cerveau profond : Strong realism for news-style and corporate presenter clips.
- 🏢 Première heure : Studio-grade avatars aimed at large content teams.
- 🔧 A FAIT: The best-known talking-photo engine, with a clean developer API.
- 🌟 Virbo : Wondershare’s mobile-first option for short social clips.
- ⭐ Vidyard : Video hosting and sales sensibilisation rather than avatar creation.
- 🎯 Fliki : Text-to-video with an excellent voice library and blog import.
- 💼 Discourir: A voice-first tool for reading documents aloud on any device.
- 📊 Dans la vidéo : Template-heavy editing for marketers who need volume.
- 🔥 Créativité : Product-ad videos pulled straight from a store listing URL.
- 💡 Sous-titres IA : Mobile app for eye contact correction and auto subtitles.
Pour la liste complète, consultez notre Alternatives à Synthesys guide.
⚔️ Comparaison des systèmes de synthèse
Voici comment Synthesys se compare à chacun de ses concurrents :
- Synthesys contre HeyGen: HeyGen has smoother lip-sync. Synthesys costs less and covers more languages.
- Synthesys vs Synthesia : Synthesia wins on avatar polish. Synthesys wins on price and voice depth.
- Synthesys contre Colossyan : Colossyan is better for training. Synthesys is better for marketing videos.
- Synthesys contre Veed : Veed is a stronger editor. Synthesys is stronger at generating footage.
- Synthesys contre Elai : Elai automates blog-to-video well. Synthesys offers deeper voice control.
- Synthesys contre Vidnoz : Vidnoz has a bigger free tier. Synthesys delivers cleaner paid output.
- Synthesys contre Deepbrain : Deepbrain suits news formats. Synthesys suits varied creative work.
- Synthesys contre Hour One : Hour One targets enterprise budgets. Synthesys targets solo creators.
- Synthesys contre D-ID : D-ID leads on talking photos. Synthesys bundles that with full video.
- Synthesys contre Virbo : Virbo is better on mobile. Synthesys is better on desktop.
- Synthesys contre Vidyard : Vidyard hosts and tracks video. Synthesys actually creates it.
- Synthesys contre Fliki : Fliki has faster text-to-video. Synthesys has better avatar quality.
- Synthesys contre Speechify : Speechify only handles audio. Synthesys handles audio and video together.
- Synthesys contre InVideo : InVideo relies on templates. Synthesys relies on AI avatars.
- Synthesys contre Creatify : Creatify specialises in ads. Synthesys covers a wider set of cases.
- Synthesys contre Captions AI : Captions AI edits real footage. Synthesys generates footage from scratch.
Commencez à utiliser Synthesys dès maintenant
You now know how to use Synthesys across every major feature:
- ✅ Voix IA
- ✅ Humains IA
- ✅ Générer des médias IA
- ✅ Face form
- ✅ Laboratoire Synthesys
- ✅ Génération de vidéos à partir de texte
- ✅ Assistance multilingue
- ✅ Photos parlantes IA
- ✅ Traductions audio
Étape suivante : Choisissez une fonctionnalité et essayez-la dès maintenant.
La plupart des gens commencent par les voix IA.
Cela prend moins de cinq minutes.
Foire aux questions
Que fait Synthesys AI ?
Synthesys AI turns written scripts into voiceovers and videos. It offers AI avatars, more than 300 voices, talking photos, image generation and audio translation.
Synthesys AI Studio est-il gratuit ?
There is a free trial that needs no account or card details. Paid access starts at $20 per month on the Personal plan.
Comment utiliser un générateur vidéo IA ?
Write or upload a script, choose an avatar and a voice, then generate. Editing the scenes afterwards takes another minute or two.
Comment créer des avatars générés par l'IA ?
Open AI Humans and pick from more than 60 avatars. Or record 30 seconds of footage to build your own.
Quel est le meilleur générateur vidéo IA gratuit ?
Vidnoz and Veed have the most generous free tiers. Synthesys offers a free trial, but its best output sits behind the paid plans.
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