クイックスタート
このガイドでは、Speechify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音声ジェネレーターの使い方 — Turn any written text into natural sounding voices in seconds
- AI音声クローニングの使い方 — Build custom voices from a 30-second recording of your own voice
- AI吹き替えの使い方 — Publish digital content in different languages with instant translation
- Scan & Listen の使い方 — Read printed text using optical character recognition on mobile devices
- APIアクセスの使い方 — Add speech synthesis technology to your own app or workflow
- カスタマイズ可能な読書体験の使い方 — Control reading speed, skip headers, and set your own playback rules
- ハイライトとメモの取り方 — Follow the voice reader with active highlighting and save key lines
- クロスプラットフォーム同期の使い方 — Your Speechify library instantly syncs across phone, tablet, and desktop
- How to Use Wide Variety of Voices and Languages — Pick from premium voices, regional accents, and over 30 languages
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 have used the Speechify app daily for eight months across phone, laptop, and browser.
Every step below comes from my own account, not from a press kit.
Speechifyは テキスト読み上げ app that reads your documents out loud.
Most people install it, press play, and never touch the rest.
This guide shows you how Speechify handles all nine of its main tools.
Step by step, with screenshots and the settings I actually keep on.
Speechifyチュートリアル
This How To Use Speechify tutorial walks you from a blank account to 声 cloning and dubbing.
スピーチファイ
Listen to any document instead of reading it. Speechify turns pdf files, emails, and word documents into spoken words with high quality ai voices. Start on the free plan and upgrade only if you need premium features.
Speechifyを使い始める
Setup takes about three minutes and one confirmation email.
Here is what my own first week with the tool looked like:
それでは、各ステップを順を追って見ていきましょう。
ステップ1：アカウントを作成する
Go to the Speechify website and click Sign Up.
Enter your email, or use the Google login to skip password setup.
✓ チェックポイント: A confirmation email lands in your 受信トレイ within a minute.
Step 2: Download Speechify on Your Devices
Download Speechify from the App Store or Google Play for the mobile version.
Add the Chrome extension for the desktop version, which reads all your websites aloud.
The same login covers web, mobile, and browser.
Here is what you get once you are inside:
✓ チェックポイント: Your dashboard shows an empty Speechify library ready for files.
Step 3: Add Your First Document
ペースト 文章, drop in a file, or share a link from your phone.
Speechify accepts pdf files, word documents, EPUBs, and plain Google Docs links.
Press play and pick a voice you can listen to for an hour.
✅ 完了: Your account is live and you are ready for any feature below.
Speechify AI音声ジェネレーターの使い方
AI音声ジェネレータ lets you convert written text into a finished audio file.
This is the core voice feature and the reason most people download Speechify.
Step 1: Import Your Text
Open the Speechify app and tap the plus icon.
Paste a passage, upload a document, or point it at a web page.
Step 2: Pick a Voice and Speed
Open the voice picker and audition a few high quality ai voices.
Set reading speed anywhere from 0.5x to 4.5x playback.
これがその様子です。
✓ チェックポイント: The player shows your chosen voice and the estimated reading time.
Step 3: Export the Audio
Tap the download icon to save the narration as an audio file.
Speechify exports in MP3 and WAV audio format for offline use.
✅ 結果: Any written text now plays back as spoken words on demand.
💡 プロのヒント: Save MP3s before a flight so you can listen without an internet connection.
Speechify AI音声クローニングの使い方
AI音声クローン lets you build custom voices from a short recording.
Thirty seconds of clean audio is enough for a usable clone.
Step 1: Open AI Voice Studio
Go to Voice Studio in the web dashboard and choose Create Voice.
Read the on-screen script at a normal pace.
Step 2: Record and Train
Record in a quiet room with no background noise or fan hum.
Training finishes in a few minutes.
これがその様子です。
✓ チェックポイント: Your clone appears in the voice list beside the stock premium voices.
Step 3: Assign It to a Document
Select the cloned voice, then play any document in your own voice.
✅ 結果: You have a personal narrator for scripts, courses, and drafts.
💡 プロのヒント: Record two samples, one calm and one energetic, then switch by content type.
Speechify AI吹き替えの使い方
AIダビング lets you republish digital content in different languages.
Speechify supports over 30 languages, including Spanish, German, and French.
Step 1: Upload Your Source File
Drop a video or audio file into the dubbing tool.
ステップ2：対象言語を選択する
Pick your output language and let instant translation run.
The system keeps timing close to the original track.
これがその様子です。
✓ チェックポイント: A preview player appears with the dubbed track loaded.
ステップ3：確認とエクスポート
Listen to the full pass before you publish anything.
Fix names and technical terms by editing the source script.
✅ 結果: One recording now reaches audiences in several different languages.
💡 プロのヒント: Dub your three best videos first and watch retention before doing the rest.
How to Use Speechify Scanner
スキャン＆リスニング lets you turn printed text into audio with your camera.
It runs on optical character recognition inside the Speechify mobile app.
ステップ1：スキャナーを開く
Tap the camera icon in the mobile app.
Flatten the page and hold the phone steady above it.
Step 2: Capture the Page
Take the photo and wait for the text layer to appear.
Crop out page numbers and footers before you confirm.
これがその様子です。
✓ チェックポイント: The scanned page opens as an editable document in your library.
Step 3: Press Play
Choose a voice and listen while the app reads the scan aloud.
✅ 結果: Paperbacks, letters, and handouts become listenable on mobile デバイス.
💡 プロのヒント: Scan several pages in one session, since batch scans keep chapter order intact.
Speechify APIへのアクセス方法
APIアクセス lets you put Speechify text to speech inside your own product.
It is the same speech synthesis technology used in the consumer app.
ステップ1：APIキーを生成する
Open the developer console and create a key for your project.
ステップ2：最初のリクエストを送信する
Post your text, voice ID, and output format to the speech endpoint.
The response returns audio files you can cache or stream.
これがその様子です。
✓ チェックポイント: Your test call returns a playable clip in under two seconds.
Step 3: Set Usage Limits
Cap characters per user so a single account cannot drain your quota.
✅ 結果: Your app can now read aloud without you building a voice engine.
💡 プロのヒント: Cache repeated phrases like menu prompts instead of regenerating them every session.
How to Customize Speechify Reading Experience
カスタマイズ可能な読書体験 lets you shape how the voice reader behaves.
The free version caps you near 250 words per minute.
ステップ1：再生設定を開く
Tap the speed dial in the player and drag it upward.
The premium version reaches five times the average reading speed.
Step 2: Skip What You Do Not Need
Turn on skip settings for headers, footnotes, and citations.
Academic pdf files become far cleaner to follow.
✅ 結果: Playback matches your comprehension instead of fighting it.
💡 プロのヒント: Raise speed by 0.25x each week rather than jumping straight to 3x.
How to Use Speechify Highlighter and Note-Taker
ハイライトとメモ取り lets you follow the words as they play.
Active highlighting keeps your eyes locked to the sentence being read.
Step 1: Turn On Text Highlighting
Open reader settings and enable highlighting.
Pick a highlight colour that survives dark mode.
Step 2: Save the Lines That Matter
Long-press a sentence to save it as a note.
Use the recap button to summarise long documents into bullet points.
✅ 結果: You finish a document with notes already collected.
💡 プロのヒント: Auditory learners retain more when highlighting and audio run together.
Speechifyのクロスプラットフォーム同期機能の使い方
クロスプラットフォーム同期 lets you start on a laptop and finish on a phone.
Your Speechify library 即座に syncs progress, notes, and voice settings.
Step 1: Sign In Everywhere
Use the same account on web, iOS, アンドロイド, and the Chrome extension.
Step 2: Check Your Position
Reopen any file and playback resumes at the exact sentence you left.
Downloads stay on the device, so commutes work without an internet connection.
✅ 結果: One queue follows you across every screen you own.
💡 プロのヒント: Send long reads to the app from your browser, then listen during the drive home.
How to Use Speechify Wide Variety of Voices and Languages
Wide Variety of Voices and Languages lets you match the voice to the task.
Premium voices include celebrity voices such as Gwyneth Paltrow and Snoop Dogg.
ステップ1：音声ライブラリを閲覧する
Filter by language, accent, and gender in the voice menu.
British, American, and Australian English all sit under the same tab.
Step 2: Set a Default Per Language
Assign one voice to English and another to your study language.
Language learners can hear pronunciation in context this way.
✅ 結果: Every document opens with a voice that fits its purpose.
💡 プロのヒント: Use a calm voice for study material and a brighter one for news.
Speechify Proのヒントとショートカット
After eight months of daily use, these are the settings that earned their place.
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Play or pause | 空間 |
| Skip forward | Right arrow |
| Speed up playback | Shift + Up arrow |
| Read selected text (Chrome) | Alt + R |
ほとんどの人が見逃す隠れた機能
- Recap summaries: Press Recap to compress a long report into bullet points before you listen.
- Auto-scroll: Keeps web pages moving with the voice, so you never touch the scrollbar.
- Voice-to-text dictation: Dictate notes and replies instead of typing them on a phone keyboard.
Speechifyでよくある間違いを避ける方法
Mistake #1: Cranking the speed too 早い
❌ 間違い: Jumping to 4x on day one and retaining almost nothing.
✅ 右: Add 0.25x per week until comprehension starts to slip, then drop back.
Mistake #2: Judging the app on the free plan
❌ 間違い: Testing limited features, then deciding the voices sound flat.
✅ 右: Run the three-day trial so you hear the premium voices before you decide.
Mistake #3: Scanning books in bad light
❌ 間違い: Photographing a curved page under a lamp and getting scrambled text.
✅ 右: Flatten the book, use daylight, and let the scanner grab clean printed text.
Speechifyのトラブルシューティング
Problem: Premium voices load slowly or stutter
原因： High quality voices stream from the server and need steady bandwidth.
修理： Download the file for offline playback, or switch to a standard voice temporarily.
Problem: The Chrome extension will not read a page
原因： The extension cannot reach text inside iframes, canvas viewers, or locked PDF readers.
修理： Select the text manually and press the listen button, or open the file in the app.
Problem: Your scan comes out as gibberish
原因： Optical character recognition struggles with glare, shadows, and tilted pages.
修理： Re-shoot the page flat in daylight and crop tight before confirming.
📌 注記： If none of these fix your issue, contact Speechify support from the account menu.
Speechifyとは何ですか?
スピーチファイ これは、書かれたテキストを音声に変換するテキスト読み上げアプリです。
Think of it as an ai reader that narrates whatever you would otherwise skim.
Cliff Weitzman created Speechify after struggling with dyslexia as a 学生.
Speechify lets you listen to books, emails, and reports without staring at a screen.
Artificial intelligence handles pronunciation, pacing, and pauses on its own.
It runs on neural speech synthesis, so narration sounds human like rather than robotic.
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 ジェネレータ: Turns documents, emails, and articles into audio files.
- AI音声クローニング: Creates custom voices from a 30-second sample of your own.
- AI吹き替え： Rebuilds your content in different languages with instant translation.
- スキャン＆リスニング： Reads printed text captured through your phone camera.
- API アクセス: Puts the same speech engine inside third-party apps.
- Customizable Reading Experience: Adjusts reading speed and skips headers or citations.
- Highlighting and Note-Taking: Tracks each sentence visually while the voice reader plays.
- クロスプラットフォーム同期： Keeps progress aligned across web, mobile, and browser.
- Wide Variety of Voices and Languages: Offers realistic voices across 30+ languages and accents.
Avid readers use it to double their weekly page count while walking or driving.
It is also a genuine accessibility tool for dyslexia and low vision.
詳細については、こちらをご覧ください。 Speechifyのレビュー.
Speechifyの価格
Here is what Speechify costs in 2026:
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 限定 | 月額0ドル | Trying the limited free version with standard voices |
| 年間 | 月額11.58ドル | Daily users who want premium features at the lowest rate |
| 毎月 | 月額29ドル | Short projects, dubbing sprints, or a single busy semester |
無料トライアル: Yes — three days of full premium access.
返金保証: Cancel anytime, and the change applies to future charges only.
💰 最もお得な価格: Annual — the same premium features for roughly a third of the monthly rate.
A Speechify premium subscription unlocks offline playback, faster speeds, and more advanced features.
Those additional features include full language access and the complete premium voice catalogue.
Speechifyと代替案
How does Speechify compare with the rest of the market?
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| スピーチファイ | Reading documents aloud daily | 月額11.58ドル | ⭐ 4.2 |
| イレブンラボ | 最もリアルな声 | 月額5ドル | ⭐ 4.6 |
| マーフAI | スタジオナレーション | 月額19ドル | ⭐ 4.5 |
| プレイ.ht | Developer voice API | 月額31ドル | ⭐ 4.4 |
| ナチュラルリーダー | 充実した無料プラン | 月額9.99ドル | ⭐ 4.3 |
| 説明 | ポッドキャスト そしてビデオ編集 | 月額19ドル | ⭐ 4.5 |
| ロボ | 動画のナレーション | 月額24ドル | ⭐ 4.3 |
| スピーチロ | 1回限りの購入 | 47ドルを1回 | ⭐ 3.9 |
おすすめ商品：
- 総合ベスト： Speechify — nothing else reads your whole library this smoothly.
- ベスト予算： NaturalReader — the strongest free version for students.
- 初心者におすすめ： Speechify — press play and it simply works.
- Best for voiceover work: ElevenLabs — closest thing to human narration on the market.
Looking for Speechify alternatives? Here are the strongest options:
- 🚀 マーフAI: Studio-grade voiceovers with timing controls that beat most speech apps for video work.
- 💰 プレイ.ht: Deep voice library and a solid API for developers who need bulk audio files.
- 🎨 ロヴォ： Genny editor pairs ai generated voices with video timelines for marketing teams.
- ⚡ 説明: Edits podcasts by editing text, with Overdub voice cloning built into the timeline.
- 🧠 イレブンラボ: The most human like speech synthesis available right now, especially for emotion.
- 🎯 リスト番号: Turns blog posts into podcast feeds automatically, useful for publishers.
- 🎙️ ポッドキャスト: Recording, editing, and cleanup of background noise in one browser tab.
- 🌟 ダプダブ: Talking avatars plus voice work, handy for short-form social video.
- 🏢 ウェルサイドラボ: Enterprise-approved voice avatars with strict licensing for corporate training.
- 🔥 リボイス: Emotion-based voice picker aimed at ads and sales videos.
- ♿ リードスピーカー: Website accessibility engine used by universities and government sites.
- 👶 ナチュラルリーダー: The closest free plan rival, with a generous browser reader for students.
- 🎬 改変: Voice-changing and dubbing tuned for film and game studios.
- 💼 スピーチロ: One-time payment instead of a subscription, good for occasional projects.
- 🔧 TTS OpenAI: Pay-per-character speech synthesis for developers building their own tools.
- 📊 ヒューム: Reads emotional tone and replies with matching delivery, strong for research.
全リストについては、こちらをご覧ください。 Speechifyの代替品 ガイド。
⚔️ Speechifyとの比較
Here is how Speechify stacks up against each competitor:
- Speechify vs Murf AI: Murf wins on voiceover production. Speechify wins for reading long documents aloud every day.
- Speechify vs Play.ht: Play.ht has broader API pricing tiers. Speechify has the better mobile app and scanner.
- Speechify vs Lovo: Lovo suits video 編集者. Speechify suits readers who want text to speech everywhere.
- Speechify と Descript: Descript edits media. Speechify consumes it, turning pdf files and articles into audio.
- Speechify vs ElevenLabs: ElevenLabs sounds more realistic. Speechify handles whole libraries, not single clips.
- Speechify vs Listnr: Listnr publishes podcasts from posts. Speechify reads all your websites on demand.
- Speechify vs Podcastle: Podcastle records audio. Speechify reads existing written text you already own.
- Speechify vs Dupdub: Dupdub focuses on avatars. Speechify focuses on reading speed and comprehension.
- Speechify vs WellSaid Labs: WellSaid serves enterprise brand voices. Speechify serves individual speechify users.
- SpeechifyとRevoicerの比較: Revoicer targets ad copy. Speechify targets books, emails, and word documents.
- SpeechifyとReadSpeakerの比較: ReadSpeaker is bought by institutions. Speechify is bought by individual readers.
- SpeechifyとNaturalReaderの比較: NaturalReader offers more in its free version. Speechify offers better premium voices.
- Speechify vs Altered: Altered is a studio tool. Speechify is a daily ai reader for commuters.
- Speechify と Speechelo: Speechelo costs less once. Speechify updates constantly and syncs across mobile devices.
- Speechify vs TTS OpenAI: TTS OpenAI needs code. Speechify works out of the box for non-developers.
- Speechify vs Hume: Hume reads emotion. Speechify reads volume, chewing through long reading time faster.
今すぐSpeechifyを使い始めましょう
You now know how to use Speechify across every major tool it ships with:
- ✅ AI音声生成器
- ✅ AI音声クローニング
- ✅ AI吹き替え
- ✅ スキャン＆リスニング
- ✅ APIアクセス
- ✅ カスタマイズ可能な読書体験
- ✅ ハイライトとメモ取り
- ✅ クロスプラットフォーム同期
- ✅ Wide Variety of Voices and Languages
次のステップ： Pick one feature and try it today.
Most speechify users start with AI Voice Generator and a single PDF.
Install Speechify today and give it five minutes.
よくある質問
Speechifyはどのように使えますか？
Create an account, add text by pasting, uploading, or scanning, then press play. Pick a voice, set your reading speed, and listen on any device.
Speechifyは本当に無料ですか？
Yes, the Limited plan costs $0/month with standard voices and speeds near 250 words per minute. Premium voices and offline audio files need a paid plan.
PDFでSpeechifyを使用する方法は？
Upload the PDF into the app or open it in the Chrome extension. Speechify reads pdf files aloud and lets you skip headers, footnotes, and citations.
Speechifyを最大限に活用するには？
Raise reading speed gradually, turn on text highlighting, and use Recap for long reports. Download audio files before 旅行 so playback survives a lost connection.
Speechifyのデメリットは何ですか？
There is no human narration, premium voices sometimes load slowly, and billing runs annually rather than monthly. Very high speeds can also hurt comprehension.
English 
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