クイックスタート
このガイドでは、Synthesysのすべての機能について説明します。
- はじめる — Create your account and finish basic setup
- AI音声の使い方 — Over 300 lifelike voices across 140 languages, ready in seconds
- AIと人間の連携方法 — More than 60 avatars filmed with real actors, no camera needed
- Generate AI Media の使い方 — 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
- Synthesys Labの使い方 — Early access to speech-to-speech and other experimental tools
- テキストからビデオを生成する方法 — A prompt or document becomes a script with matching scenes
- 多言語サポートの使い方 — Publish one video in more than 140 languages
- AIが話す写真の使い方 — Upload one photo and it moves, blinks and speaks
- 音声翻訳の使い方 — Convert finished audio into another language without rewriting
所要時間： 各作品につき5分
このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案
このガイドを信頼する理由
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 AIビデオ 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.
Synthesysチュートリアル
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.
シンセシス
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.
Synthesysを使い始める
Before any feature works, finish this one-time setup.
約3分かかります。
Here’s my own walkthrough of the platform first:
それでは、各ステップを詳しく見ていきましょう。
ステップ1：アカウントを作成する
Go to the Synthesys website and click Sign Up.
Enter your email and set a password.
✓ チェックポイント: A confirmation email lands in your 受信トレイ within a minute.
ステップ2：ダッシュボードを開く
Synthesys is cloud-based, so nothing gets downloaded.
It runs in the browser and needs a steady connection to render.
ダッシュボードの画面は以下のようになります。
✓ チェックポイント: 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.
✅ 完了: これで、以下のすべての機能をご利用いただけます。
Synthesys AI音声の使い方
AI音声 lets you turn any written word into natural speech.
The library holds more than 300 ultra-lifelike voices across 140 languages.
以下に、その使用方法をステップごとに説明します。
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.
これがその様子です。
✓ チェックポイント: Your script sits in the editor with a word counter below it.
ステップ3：音声を選択して生成する
Preview a few voices before you decide.
Click Generate, then download the file when the render has ended.
✅ 結果: A clean voiceover file that sounds like a real human reading your copy.
💡 プロのヒント: Assign different AI voices to specific lines inside one project. Two speakers トレーディング lines hold attention far better than one flat narrator.
How to Use Synthesys AI Human Avatars
AI人間 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.
以下に、その使用方法をステップごとに説明します。
ステップ1：アバターライブラリを閲覧する
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.
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: A talking-head video with no filming, no lighting and no retakes.
💡 プロのヒント: 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
AIメディアを生成する creates custom visuals from a short text prompt.
Synthesys runs a text-to-image engine for artwork, backgrounds and B-roll stills.
以下に、その使用方法をステップごとに説明します。
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.
ステップ2：スタイルを選ぶ
Choose photoreal, illustration or 3D render.
これがその様子です。
✓ チェックポイント: A grid of image variations appears under the prompt box.
ステップ3：生成して比較する
The platform returns multiple versions of the same prompt.
Save the one that fits, then continue building your scene.
✅ 結果: Original artwork you own, instead of stock photos everyone else uses.
💡 プロのヒント: 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.
以下に、その使用方法をステップごとに説明します。
Step 1: Record a Short Clip
Film 30 seconds facing the camera in even light.
Keep your head still and your mouth clearly visible.
ステップ2：アップロードとトレーニング
Drop the file into Face form and wait for processing.
これがその様子です。
✓ チェックポイント: Your face shows up in the avatar list with a custom tag.
ステップ3：保存して再利用する
Name the avatar so you can find it later.
It now appears beside the stock avatars in every project.
✅ 結果: A presenter that looks like you, ready for unlimited future videos.
💡 プロのヒント: Record in the exact clothes you want on screen. You cannot change the outfit after training, and reshooting wastes time.
Synthesys Labの使い方
シンセシスラボ is where newer tools land before a full release.
The 2026 headline feature here is speech-to-speech, and it solves a real problem.
以下に、その使用方法をステップごとに説明します。
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.
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: AI narration that carries your own emphasis instead of flat text-to-speech.
💡 プロのヒント: 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
テキストからビデオへの変換 is the fastest route from idea to finished clip.
Feed it a prompt or upload a document, and artificial intelligence writes the script.
以下に、その使用方法をステップごとに説明します。
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.
ステップ2：生成されたスクリプトを確認する
The AI video generator drafts the copy and matches scenes to it.
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: A full multi-scene AI video built from a single paragraph of input.
💡 プロのヒント: Never ship the first draft word for word. The AI writes clean copy, but it misses your specific product details.
Synthesysの多言語サポートの使い方
多言語サポート lets one recording reach a global audience.
Synthesys AI Studio supports video creation in more than 140 languages.
以下に、その使用方法をステップごとに説明します。
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.
ステップ2：対象言語を選択する
Open the language menu and tick each market you want.
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: One script working across every market you sell into.
💡 プロのヒント: 音声クローン copies your voice into 29 languages while maintaining its character. Your Spanish version still sounds like you.
Synthesys AI Talking Photosの使い方
AIが話す写真 turns a single still image into a moving presenter.
Upload a photo and Synthesys animates the face to match your audio.
以下に、その使用方法をステップごとに説明します。
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.
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: A speaking presenter built from one image in under a minute.
💡 プロのヒント: Keep talking-photo clips under 45 seconds. The effect holds attention 早い, then small glitches start to show.
Synthesys Audio Translationsの使い方
音声翻訳 converts finished audio into another language.
This is the fastest way to communicate with viewers who do not speak English.
以下に、その使用方法をステップごとに説明します。
ステップ1：音声ファイルをアップロードする
Drop in an existing MP3 or WAV file.
Clean source audio translates far more accurately.
Step 2: Pick the Output Language
ドロップダウンメニューから対象言語を選択してください。
これがその様子です。
✓ チェックポイント: 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.
✅ 結果: A second-language version of content you already published.
💡 プロのヒント: Read the translated transcript before exporting. Product names and slang translate badly, and fixing them in text is quicker.
Synthesys Proのヒントとショートカット
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.
キーボードショートカット
| アクション | ショートカット |
|---|---|
| プレビューを再生または一時停止 | スペースバー |
| 最後の編集を元に戻す | Ctrl + Z |
| シーンを複製する | Ctrl + D |
| プロジェクトを保存 | Ctrl + S |
Queue long renders in one batch so the platform works through them efficiently:
ほとんどの人が見逃す隠れた機能
- 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.
Synthesysでよくある間違いを避ける方法
Mistake #1: Writing Like a Blog Post
❌ 間違い: Pasting long written paragraphs straight into the script box.
✅ 右: Write short spoken sentences. Read them aloud first and cut anything that trips you up.
Mistake #2: Making Videos Far Too Long
❌ 間違い: Cramming every detail into one twelve-minute clip.
✅ 右: Shorter videos get higher completion rates. Keep only the essential information and split the rest.
Mistake #3: Ignoring the Preview
❌ 間違い: Rendering all language versions before checking the first one.
✅ 右: Approve one master version, then translate. Fixing a script across twelve renders is pure frustration.
Synthesysのトラブルシューティング
Problem: The Voice Mispronounces Names
原因： The engine reads unusual spellings using standard language patterns.
修理： Spell the word phonetically in the script. Write “Fahim” as “Fa-heem” and it lands correctly.
Problem: Rendering Takes Too Long or Fails
原因： Synthesys renders in the cloud, so a weak connection stalls the job.
修理： Split long projects into shorter scenes. Four short renders finish faster than one long one.
Problem: Lip-Sync Looks Slightly Off
原因： Fast pacing and dense sentences are difficult for the avatar to match.
修理： Add commas to slow delivery. Balance the pace, then re-render that scene only.
📌 注記： If none of these fix your issue, contact Synthesys support.
Synthesysとは何ですか?
シンセシス 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.
こちらの簡単な概要をご覧ください。
主な機能は以下のとおりです。
- AI音声: Over 300 lifelike voices across 140 languages, ready in seconds
- AI人間： More than 60 avatars filmed with real actors, no camera needed
- AIメディアを生成する： A text-to-image engine for custom artwork and B-roll stills
- Face form: Turn your own footage into a reusable presenter avatar
- シンセシス・ラボ： Early access to speech-to-speech and other experimental tools
- テキストからビデオへの生成: A prompt or document becomes a script with matching scenes
- 多言語サポート: Publish one video in more than 140 languages
- AIが話す写真： Upload one photo and it moves, blinks and speaks
- 音声翻訳: 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.
詳細なレビューについては、こちらをご覧ください。 Synthesysのレビュー.
シンセシスの価格
2026年におけるSynthesysのコストは以下のとおりです。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人的 | 月額20ドル | ソロクリエイターがAIビデオをテスト |
| クリエイター | 月額41ドル | Regular publishers who need commercial rights |
| 仕事 | 月額69ドル | Teams running multilingual campaigns |
無料トライアル: Yes. You can test the generator with no account and no card details.
返金保証: Refunds are handled case by case, so read the terms before you buy.
💰 最もお得な価格: Creator at $41/month. It unlocks commercial use, which Personal does not.
Synthesysと代替案の比較
Synthesysは他社と比べてどうでしょうか？競合状況は以下のとおりです。
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| シンセシス | Voice depth and value | 月額20ドル | ⭐ 3.8 |
| ヘイジェン | Lip-sync quality | 月額29ドル | ⭐ 4.7 |
| シンセシア | エンタープライズチーム | 月額29ドル | ⭐ 4.7 |
| コロサイ | トレーニングビデオ | 月額27ドル | ⭐ 4.5 |
| ヴィード | ブラウザ編集 | 月額19ドル | ⭐ 4.6 |
| ヴィドノズ | 無料プラン | 月額18ドル | ⭐ 4.4 |
| フリキ | テキストからビデオへの変換速度 | 月額28ドル | ⭐ 4.6 |
| した | 話す写真 | 月額5ドル | ⭐ 4.5 |
おすすめ商品：
- 総合ベスト： HeyGen — the cleanest avatar movement on the market
- ベスト予算： Vidnoz — a real free tier that produces usable clips
- 初心者におすすめ： Synthesys — the editor is easy to follow from day one
- Best for voice work: Synthesys — 300+ voices and cloning across 29 languages
🎯 Synthesysの代替品
Synthesysの代替製品をお探しですか？おすすめの製品をご紹介します。
- 🚀 ヘイジェン: Fast avatar videos with strong lip-sync and a slick editor.
- 💰 シンセシア： The enterprise standard, with polished avatars and heavy team controls.
- 🎨 コロシアン： Built for workplace training, with scenario-based scripts and quizzes.
- ⚡ ヴィード： A full browser editor with subtitles, trimming and stock media.
- 🔒 エライ： Turns blog posts and slides into presenter videos automatically.
- 🧠 ヴィドノズ: A generous free tier with hundreds of templates and avatars.
- 👶 ディープブレイン: Strong realism for news-style and corporate presenter clips.
- 🏢 1時間目: Studio-grade avatars aimed at large content teams.
- 🔧 した： The best-known talking-photo engine, with a clean developer API.
- 🌟 ヴィルボ： Wondershare’s mobile-first option for short social clips.
- ⭐ ヴィドヤード： Video hosting and sales アウトリーチ rather than avatar creation.
- 🎯 フリキ: Text-to-video with an excellent voice library and blog import.
- 💼 スピーチファイ： A voice-first tool for reading documents aloud on any device.
- 📊 ビデオ内: Template-heavy editing for marketers who need volume.
- 🔥 創造する: Product-ad videos pulled straight from a store listing URL.
- 💡 キャプションAI: Mobile app for eye contact correction and auto subtitles.
全リストについては、こちらをご覧ください。 Synthesysの代替品 ガイド。
⚔️ Synthesysの比較
Synthesysが各競合他社と比べてどのような位置づけにあるのか、以下に示します。
- Synthesys vs HeyGen: HeyGen has smoother lip-sync. Synthesys costs less and covers more languages.
- SynthesysとSynthesiaの比較： Synthesia wins on avatar polish. Synthesys wins on price and voice depth.
- Synthesys vs Colossyan: Colossyan is better for training. Synthesys is better for marketing videos.
- Synthesys vs Veed: Veed is a stronger editor. Synthesys is stronger at generating footage.
- Synthesys対Elai： Elai automates blog-to-video well. Synthesys offers deeper voice control.
- Synthesys vs Vidnoz: Vidnoz has a bigger free tier. Synthesys delivers cleaner paid output.
- Synthesys対Deepbrain： Deepbrain suits news formats. Synthesys suits varied creative work.
- Synthesys vs 1時間目： Hour One targets enterprise budgets. Synthesys targets solo creators.
- SynthesysとD-IDの比較： D-ID leads on talking photos. Synthesys bundles that with full video.
- Synthesys vs Virbo: Virbo is better on mobile. Synthesys is better on desktop.
- Synthesys vs Vidyard: Vidyard hosts and tracks video. Synthesys actually creates it.
- Synthesys vs Fliki: Fliki has faster text-to-video. Synthesys has better avatar quality.
- Synthesys vs Speechify: Speechify only handles audio. Synthesys handles audio and video together.
- Synthesys vs InVideo: InVideo relies on templates. Synthesys relies on AI avatars.
- Synthesys vs Creatify： Creatify specialises in ads. Synthesys covers a wider set of cases.
- SynthesysとCaptions AIの比較： Captions AI edits real footage. Synthesys generates footage from scratch.
今すぐSynthesysを使い始めましょう
You now know how to use Synthesys across every major feature:
- ✅ AI音声
- ✅ AI人間
- ✅ AIメディアを生成する
- ✅ Face form
- ✅ シンセシス・ラボ
- ✅ テキストからビデオへの変換
- ✅ 多言語対応
- ✅ AIが話す写真
- ✅ 音声翻訳
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
ほとんどの人はAI音声から始めます。
5分もかかりません。
よくある質問
Synthesys AIは何をしますか？
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は無料ですか？
There is a free trial that needs no account or card details. Paid access starts at $20 per month on the Personal plan.
AI動画生成ツールの使い方
Write or upload a script, choose an avatar and a voice, then generate. Editing the scenes afterwards takes another minute or two.
AIで生成されたアバターを作成する方法は？
Open AI Humans and pick from more than 60 avatars. Or record 30 seconds of footage to build your own.
最高の無料AI動画生成ツールは何ですか？
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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