Quick Start

This guide covers every TTSOpenAI feature:
- はじめる — Create account and basic setup
- How to Use Text to Voice — Convert any text into natural speech
- How to Use Input Text Pro — Fine-tune pronunciation and pauses
- How to Use API Keys — Integrate voice generation into your apps
- How to Use Custom Voice Maker — Create personalized voices
- How to Use Story Maker — Build multi-voice narratives
- How to Use High-Fidelity Neural Voices — Get the most lifelike audio
- How to Use Multilingual Support — Generate speech in 40+ languages
- How to Use Real-Time Synthesis — Stream audio as it generates
Time needed: 5 minutes per feature
Also in this guide: Pro Tips | Common Mistakes | トラブルシューティング | 価格 | 代替案
Why Trust This Guide
I’ve used TTSOpenAI for over 6 months and tested every feature covered here. This how to use TTSOpenAI article comes from real hands-on experience — not marketing fluff or vendor screenshots.

TTSOpenAI is one of the most powerful AI 音声ジェネレータ tools available today.
But most users only scratch the surface of what it can do.
This guide shows you how to use every major feature.
Step by step, with screenshots and pro tips.
TTSOpenAI Tutorial
This complete TTSOpenAI tutorial walks you through every feature step by step, from initial setup to advanced tips that will make you a power user.
Getting Started with TTSOpenAI
Before using any feature, complete this one-time setup.
It takes about 3 minutes.
Now let’s walk through each step.
Step 1: Create Your Account
Go to TTSOpenAI’s website at ttsopenai.com.
Click “Sign Up” in the top right corner.
Enter your email and create a password.
You can also sign up with your Google account.
✓ Checkpoint: チェックしてください 受信トレイ for a confirmation email.
Step 2: Access the Dashboard
TTSOpenAI runs entirely in your browser.
No downloads or installs needed.
Log in with your new account.
Here’s what the dashboard looks like:

✓ Checkpoint: You should see the main dashboard with the text input area.
Step 3: Complete Initial Setup
You get free credits when you sign up.
Browse the voice library and preview a few 声.
Pick a default voice that fits your projects.
✅ Done: You’re ready to use any feature below.
How to Use TTSOpenAI Text to Voice
Text to Voice lets you convert any written text into natural-sounding speech 即座に.
Here’s how to use it step by step.
Watch Text to Voice in action:

Now let’s break down each step.
Step 1: Enter Your Text
Paste or type your text into the input box.
You can enter up to several thousand characters at once.
Step 2: Choose a Voice
Click the voice selector dropdown.
Pick from voices like Alloy, Echo, Fable, Onyx, Nova, or Shimmer.
Filter voices by gender, age, and accent.
Preview each voice before generating.
✓ Checkpoint: You should see the voice name displayed in the selector.
Step 3: Generate and Download
Click the “Generate” button to create your audio.
Listen to the preview in your browser.
Download as MP3 or WAV when satisfied.
✅ Result: You have a natural-sounding audio file ready to use.
💡 プロのヒント: Preview 3-4 voices with the same text before committing. Each voice has a distinct personality that fits different content types.
How to Use TTSOpenAI Input Text Pro
テキスト入力プロ lets you fine-tune pronunciation, pauses, and intonation for polished audio.
Here’s how to use it step by step.
Watch Input Text Pro in action:

Now let’s break down each step.
Step 1: Open Input Text Pro Mode
Switch from basic mode to Input Text Pro in the editor.
You’ll see advanced formatting controls appear.
Step 2: Add Speech Controls
Insert pauses between sentences for natural pacing.
Adjust pronunciation for tricky words or acronyms.
Control emphasis on key words or phrases.
✓ Checkpoint: You should see your text with formatting markers applied.
Step 3: Generate Enhanced Audio
Click “Generate” to hear the refined result.
Compare it to basic mode output.
The difference in quality is immediately noticeable.
✅ Result: Your audio now has professional-grade pacing and pronunciation.
💡 プロのヒント: Spell out acronyms the way you want them spoken. Write “NASA” as “nah-sah” if you want it said as a word, not spelled out letter by letter.
How to Use TTSOpenAI API Keys
APIキー let you integrate TTSOpenAI’s voice generation directly into your own apps and workflows.
Here’s how to use it step by step.
Watch API Keys setup in action:

Now let’s break down each step.
Step 1: Navigate to API Settings
Go to your account dashboard.
Click on the “API” or “Developer” section.
Step 2: Generate Your API Key
Click “Create New Key” to generate a unique API key.
Copy and store your key in a safe place.
Never share your API key publicly.
✓ Checkpoint: You should see your new API key listed in the dashboard.
Step 3: Make Your First API Call
Use the REST API endpoint with your key.
Send a POST request with your text and voice selection.
Receive the audio file in your chosen format.
✅ Result: You can now generate voice audio from any application.
💡 プロのヒント: Store your API key as an environment variable instead of hardcoding it. This keeps your key secure across deployments.
How to Use TTSOpenAI Custom Voice Maker
カスタムボイスメーカー lets you create personalized voices trained on your own audio samples.
Here’s how to use it step by step.
Watch Custom Voice Maker in action:

Now let’s break down each step.
Step 1: Open Voice Maker
Navigate to the Custom Voice Maker section.
Click “Create New Voice” to begin.
Step 2: Upload Your Audio Sample
Record or upload about 60 seconds of clean audio.
Use a quality microphone in a quiet room.
The system needs clear, consistent speech to work well.
✓ Checkpoint: You should see the upload progress bar complete.
Step 3: Train and Test Your Voice
Wait for the system to process your sample.
Test the custom voice with a sample text.
Adjust settings until the output matches your expectations.
✅ Result: You now have a unique voice that sounds like your brand.
💡 プロのヒント: Record your sample reading naturally, not in a studio announcer voice. The AI captures your natural tone better when you speak conversationally.
How to Use TTSOpenAI Story Maker
ストーリーメーカー lets you build multi-voice narratives with different characters and emotions.
Here’s how to use it step by step.
Watch Story Maker in action:

Now let’s break down each step.
Step 1: Open Story Maker
Go to the Story Maker section from the dashboard.
Click “New Story” to start a fresh project.
Step 2: Assign Voices to Characters
Add characters and assign a unique voice to each one.
Write dialogue lines for each character.
Add emotion tags to control how each line sounds.
✓ Checkpoint: Each character should show their assigned voice name.
Step 3: Generate the Full Story
Click “Generate Story” to create the complete audio.
The tool stitches all character voices into one file.
Download the finished story as a single audio track.
✅ Result: You have a complete multi-voice audio story ready to publish.
💡 プロのヒント: Pick voices with clearly different tones for each character. Listeners can follow the story better when characters sound distinct from each other.
How to Use TTSOpenAI High-Fidelity Neural Voices
High-Fidelity Neural Voices let you generate the most lifelike audio TTSOpenAI offers.
Here’s how to use it step by step.
Step 1: Select a Neural Voice
Open the voice library and filter by “High-Fidelity” or “Neural.”
These voices use advanced AI to mimic natural speech patterns.
Step 2: Enter Your Content
Paste your text into the input field.
Use natural punctuation for the best results.
The neural voices adapt tone based on context automatically.
Here’s what this looks like:

✓ Checkpoint: You should hear a voice that sounds almost human.
Step 3: Export in High Quality
Choose WAV format for the highest audio fidelity.
Use MP3 if file size matters more than quality.
✅ Result: You have studio-quality audio that rivals human recordings.
💡 プロのヒント: Use WAV format for audiobooks and podcasts where audio quality matters. Switch to MP3 only for web content where file size is the priority.
How to Use TTSOpenAI Multilingual Support
多言語サポート lets you generate speech in 40+ languages and dialects.
Here’s how to use it step by step.
Step 1: Select Your Target Language
Open the language dropdown in the voice settings.
Choose from English, Spanish, French, Japanese, and more.
Step 2: Enter Text in Your Language
Type or paste your text in the target language.
TTSOpenAI detects the language automatically in most cases.
Pick a voice that matches the language and accent you want.
✓ Checkpoint: The language indicator should show your selected language.
Step 3: Generate and Verify
Click “Generate” and listen to the output.
Check pronunciation of region-specific words carefully.
✅ Result: You have natural-sounding audio in your target language.
💡 プロのヒント: Have a native speaker review your output if the content is for a professional audience. AI handles most languages well but can miss regional slang.
How to Use TTSOpenAI Real-Time Synthesis
Real-Time Synthesis lets you stream audio as it generates, with minimal delay.
Here’s how to use it step by step.
Step 1: Enable Real-Time Mode
Toggle the “Real-Time” or “Stream” option in settings.
This is ideal for live apps and voice assistants.
Step 2: Send Text for Streaming
Enter your text or connect via the API endpoint.
Audio starts playing before the full file generates.
✓ Checkpoint: Audio should begin within a second of submitting text.
Step 3: Integrate into Your App
Use the streaming API for チャットボット or voice assistants.
The low latency makes conversations feel natural.
✅ Result: Your app delivers instant voice responses to users.
💡 プロのヒント: Keep input text under 200 characters per chunk for the fastest streaming response. Break longer content into smaller pieces for smooth playback.
TTSOpenAI Pro Tips and Shortcuts
After testing TTSOpenAI for over 6 months, here are my best tips.
キーボードショートカット
| Action | Shortcut |
|---|---|
| Generate Audio | Ctrl + Enter |
| Play/Pause Preview | Spacebar |
| Switch Voice | Ctrl + Shift + V |
| Download Output | Ctrl + D |
Hidden Features Most People Miss
- Emotion tags: Add mood markers to your text to shift the voice tone between happy, sad, or excited within a single script.
- Batch processing: Upload a CSV of text entries to generate dozens of audio files in one go through the API.
- Voice blending: Combine two voices to create a unique hybrid tone that fits your brand identity perfectly.
TTSOpenAI Common Mistakes to Avoid
Mistake #1: Using the Wrong Voice for Your Content
❌ Wrong: Picking the first voice you see without testing it against your content type.
✅ Right: Preview 3-4 voices with a sample of your actual text before committing to a full project.
Mistake #2: Ignoring Punctuation in Your Input
❌ Wrong: Pasting raw text without commas, periods, or paragraph breaks.
✅ Right: Use proper punctuation to guide natural pauses and pacing in the generated speech.
Mistake #3: Not Disclosing AI-Generated Audio
❌ Wrong: Using AI voices in content without telling your audience it’s synthetic speech.
✅ Right: Always disclose that your audio is AI-generated to stay ethical and compliant.
TTSOpenAI Troubleshooting
Problem: Audio Sounds Robotic or Unnatural
Cause: Missing punctuation or overly long sentences confuse the speech model.
修理: Break text into shorter sentences. Add commas and periods where natural pauses should occur. Try a different voice.
Problem: Words Are Mispronounced
Cause: Unusual names, acronyms, or technical terms trip up the AI.
修理: Use Input Text Pro to spell out tricky words phonetically. Write “eye-phone” instead of “iPhone” if needed.
Problem: API Key Not Working
Cause: The key may have expired, or you exceeded your credit limit.
修理: Check your account dashboard for credit balance. Generate a new API key if the old one expired. Verify the key has no extra spaces.
📌 注記: If none of these fix your issue, contact TTSOpenAI support.
TTSOpenAIとは何ですか?
TTSOpenAI is an AI voice generator tool that converts written text into ultra-realistic spoken audio.
Think of it like having a professional voice actor on call 24/7, ready to read anything you write.
Watch this quick overview:
It includes these key features:
- テキスト音声変換: Convert any written content into natural-sounding speech instantly.
- 入力テキストプロ: Fine-tune pronunciation, pauses, and emphasis for polished audio.
- API Keys: Integrate voice generation into your own apps and workflows.
- Custom Voice Maker: Create unique voices trained on your own audio samples.
- ストーリーメーカー: Build multi-character narratives with different voices and emotions.
- 高忠実度ニューラル音声: Access the most lifelike voices the platform offers.
- 多言語サポート: Generate speech in 40+ languages and dialects.
- Real-Time Synthesis: Stream audio instantly for live apps and voice assistants.
For a full review, see our TTSOpenAI review.

TTSOpenAIの価格
Here’s what TTSOpenAI costs in 2026:
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 使った分だけ支払う | $0.00004/credit | Everyone — pay only for what you use |
無料トライアル: Yes — you get free credits when you sign up.
返金保証: No refunds — pay-as-you-go credits are non-refundable.
Here’s the pricing breakdown:

💰 Best Value: Pay as you go — you never pay for credits you don’t use, making it perfect for both small creators and high-volume users.
TTSOpenAI vs Alternatives
How does TTSOpenAI compare? Here’s the competitive landscape:
| 道具 | 最適な用途 | 価格 | Rating |
|---|---|---|---|
| TTSOpenAI | Budget-friendly AI voice generation | $0.00004/credit | ⭐ 4.3 |
| イレブンラボ | Most realistic voice quality | $4.17/mo | ⭐ 4.7 |
| マーフ 人工知能 | Professional voiceovers for video | 月額19ドル | ⭐ 4.3 |
| スピーチファイ | Accessibility and productivity | $11.58/mo | ⭐ 4.2 |
| 説明 | All-in-one audio and video editing | $16/mo | ⭐ 4.5 |
| ロボ 人工知能 | Emotional AI voices | $24/mo | ⭐ 4.0 |
| プレイht | Large voice library and API | $31.20/mo | ⭐ 4.1 |
| ウェルサイドラボ | Enterprise voice production | 月額50ドル | ⭐ 4.2 |
Quick picks:
- Best overall: ElevenLabs — top voice realism and emotional range across 29+ languages.
- Best budget: TTSOpenAI — pay only for what you use with no monthly subscription.
- Best for beginners: Speechify — clean interface and simple text-to-audio conversion.
- Best for content creators: Murf AI — built-in ビデオエディター and collaboration tools.
🎯 TTSOpenAI Alternatives
Looking for TTSOpenAI alternatives? Here are the top options:
- 🚀 マーフAI: Professional voiceovers with a built-in video editor, 200+ voices in 20+ languages, and team collaboration features.
- 💰 スピーチファイ: Best for accessibility and speed reading with 50M+ users, browser extensions, and mobile apps across all デバイス.
- 🎨 説明: All-in-one audio and video editor with Overdub 音声クローン, transcription, and podcast publishing built in.
- ⚡ イレブンラボ: Industry leader in voice realism with emotional depth, 1200+ voices, instant voice cloning, and 29+ languages.
- 🔒 Play ht: Massive voice library with low-latency API, WordPress plugin, and full commercial usage rights on paid plans.
- 🧠 Lovo AI: Emotionally expressive voices with 500+ voices in 100+ languages, plus a built-in video editing suite.
- 👶 リスト番号: Simple TTS with podcast hosting included, 900+ voices in 140+ languages, and easy embed codes for blogs.
- 🏢 ポッドキャスト: Podcast-focused platform with AI voice skins, background noise removal, and one-click publishing to Spotify.
- 🔧 ダップダブ: Affordable AI voiceovers for video creators with 300+ voices, avatar generation, and screen recording tools.
- 🌟 ウェルサイードラボ: Enterprise-grade voice production with studio-quality voices, team workflows, and SOC 2 compliance.
- ⭐ リボイス: One-click AI voiceovers with 200+ voices, emotion control, and support for MP3 and WAV export formats.
- 🎯 リードスピーカー: Enterprise TTS with custom pricing, on-premise deployment options, and decades of speech technology expertise.
- 💼 ナチュラルリーダー: Simple text-to-speech for documents, PDFs, and web pages with a Chrome extension and mobile app.
- 📊 改変: Voice changing and performance-driven TTS with real-time voice morphing for gaming and content creation.
- 🔥 スピーチロ: Budget-friendly one-time payment TTS with 30+ voices and 24 languages for quick voiceover projects.
- 🧠 ヒューム AI: Emotionally intelligent voice AI with empathic models that understand and respond to user emotions in real time.
For the full list, see our TTSOpenAI alternatives guide.
⚔️ TTSOpenAI Compared
Here’s how TTSOpenAI stacks up against each competitor:
- TTSOpenAI vs Murf AI: Murf wins for video integration and team workflows. TTSOpenAI wins on pricing flexibility with pay-as-you-go credits.
- TTSOpenAI と Speechify: Speechify is better for reading documents aloud. TTSOpenAI is stronger for generating voiceovers and audio files.
- TTSOpenAI と Descript: Descript is an all-in-one editor with video tools. TTSOpenAI is a focused TTS tool with deeper voice controls.
- TTSOpenAI vs ElevenLabs: ElevenLabs has superior voice realism and cloning. TTSOpenAI costs less per character for high-volume users.
- TTSOpenAI vs Play ht: Play ht offers a larger voice library. TTSOpenAI is simpler to use and more affordable per generation.
- TTSOpenAI vs Lovo AI: Lovo has more emotional voice options. TTSOpenAI is cheaper and faster for basic voice generation tasks.
- TTSOpenAI vs Listnr: Listnr bundles podcast hosting. TTSOpenAI gives you better voice quality and flexible API access.
- TTSOpenAI vs Podcastle: Podcastle is built for podcasters. TTSOpenAI is more versatile for general voice generation across use cases.
- TTSOpenAI vs DupDub: DupDub adds avatar generation. TTSOpenAI delivers more natural-sounding voices at a lower cost per credit.
- TTSOpenAI vs WellSaid Labs: WellSaid targets enterprise teams with compliance. TTSOpenAI suits individuals and small teams on a budget.
- TTSOpenAI と Revoicer: Revoicer is simpler with fewer features. TTSOpenAI offers more voices, languages, and API access.
- TTSOpenAIとReadSpeakerの比較: ReadSpeaker is enterprise-only with custom pricing. TTSOpenAI is accessible to anyone with pay-as-you-go credits.
- TTSOpenAIとNaturalReaderの比較: NaturalReader is great for reading PDFs aloud. TTSOpenAI gives you more control over voice customization and output.
- TTSOpenAI vs Altered: Altered excels at real-time voice morphing for gaming. TTSOpenAI is better for standard text-to-speech generation.
- TTSOpenAI 対 Speechelo: Speechelo is a one-time payment tool with limited updates. TTSOpenAI offers ongoing improvements and more voices.
- TTSOpenAI 対 Hume AI: Hume focuses on emotional intelligence and empathy. TTSOpenAI is more practical for everyday voice generation needs.
Start Using TTSOpenAI Now
You learned how to use every major TTSOpenAI feature:
- ✅ Text to Voice
- ✅ Input Text Pro
- ✅ API Keys
- ✅ Custom Voice Maker
- ✅ Story Maker
- ✅ High-Fidelity Neural Voices
- ✅ Multilingual Support
- ✅ Real-Time Synthesis
Next step: Pick one feature and try it now.
Most people start with Text to Voice.
It takes less than 5 minutes.
よくある質問
Is TTSOpenAI free to use?
TTSOpenAI offers free credits when you sign up. After that, it uses a pay-as-you-go model at $0.00004 per credit. There is no monthly subscription required, so you only pay for what you generate.
What is the most realistic AI text-to-speech?
ElevenLabs is widely considered the most realistic AI TTS in 2026. TTSOpenAI also delivers high-fidelity neural voices that sound very close to human speech, especially when you use the high-definition voice options and proper punctuation in your input text.
What is the best AI for mimicking voice?
For voice cloning, ElevenLabs and TTSOpenAI’s Custom Voice Maker are both strong choices. TTSOpenAI lets you create a custom voice from about 60 seconds of clean audio. The quality depends heavily on the recording you provide as a sample.
Does OpenAI have a テキスト読み上げ?
Yes, OpenAI offers text-to-speech through its API with models like tts-1, tts-1-hd, and gpt-4o-mini-tts. TTSOpenAI is a separate platform that provides a user-friendly interface built on advanced speech synthesis technology, making it easier for non-developers to generate audio.
できる チャットGPT convert text-to-speech?
ChatGPT has voice features in the mobile app, but it is not a dedicated TTS tool. For creating downloadable audio files with full voice control, TTSOpenAI is a better fit. It gives you voice selection, speed control, and export options that ChatGPT does not offer.
Is ChatGPT text to speech free?
ChatGPT’s voice feature is available on paid plans. TTSOpenAI gives you free credits at signup and charges per credit after that. If you need dedicated text-to-speech with downloadable files, TTSOpenAI’s pay-as-you-go model is more cost-effective than a ChatGPT subscription.
Is there a free AI text to speech generator?
Several tools offer free tiers with limited characters. TTSOpenAI gives you free startup credits. Google Text-to-Speech and NaturalReader also have free options. For commercial-quality voices with no watermarks, a paid plan from any provider is usually required.
Can I create my own TTS voice?
Yes. TTSOpenAI’s Custom Voice Maker lets you create a unique voice from a short audio sample. You need about 60 seconds of clean, consistent speech. The resulting voice can be used across all your projects on the platform.













