Speechify vs Altered: Best Text-to-Speech Generator in 2025?

執筆者 | 最終更新日 Oct 30, 2025

勝者
スピーチする
4.5
  • AI音声ジェネレータ
  • 音声クローン
  • ダビング
  • スキャン&リスニング
  • APIアクセスを取得する
  • 無料プランあり
  • Paid Plans from $11.58/month
準優勝
Altered logo
3.5
  • 音声クローン
  • Voice Training
  • Voice Morphing
  • Text-to-Speech
  • Voice Editor
  • 無料プランあり
  • Paid Plans from $30/month
Speechify vs Altered

Have you ever wished you could have any text read aloud to you with a click of a button?

Maybe you’re tired of staring at screens, or perhaps you learn better by listening. 

Two of the most popular options are Speechify and Altered. But which one is right for you?

In this post, we’ll dive deep and compare Speechify vs Altered, exploring their features, pricing, and overall ease of use.

Ultimately, you can decide which TTS ジェネレータ best fits your needs and preferences.

さあ、始めましょう!

概要

To give you the most accurate comparison, we’ve spent weeks testing both Speechify and Altered.

We’ve used them to listen to articles, books, and emails, and we’ve explored all of their key features.

This hands-on experience allows us to provide real-world insights and help you 作る an informed decision.

スピーチファイ
4.55点満点中

Boost your productivity by 2x with Speechify! Speechify boasts Millions of downloads and a high rating. Experience the power of text-to-speech.

価格: It has a free plan. Paid plan starts at $11.58/month

主な特徴:

  • Text-to-Speech
  • Audio File Creation
  • Chrome拡張機能
Altered Logo
3.55点満点中

Ready to unlock the power of voice cloning? Head over to Altered’s website and start creating stunning audio with AI voices today with powerful features!

価格: It has a free plan. The premium plan starts at $30.00/month.

主な特徴:

  • AI音声クローン
  • Real-time voice changing
  • Audio transcription

Speechifyとは何ですか?

Have you ever wished you could have your emails read aloud to you while you’re getting ready in the morning?

That’s where Speechify comes in. It’s a popular text-to-speech app that can turn digital text into audio. 

Think of it like having your narrator for anything you read online. 

It’s handy for those who prefer to listen rather than read or for anyone who wants to multitask.

また、私たちのお気に入りを探索してください Speechifyの代替品

Speechifyの紹介

私たちの見解

スピーチファイ

言葉を音声に変換して時間を節約してみませんか?Speechifyは数百万回のダウンロード数と高い評価を誇ります。人気の理由をぜひご確認ください。今すぐSpeechifyをお試しください!

主なメリット

  • 自然な音声: さまざまなアクセントや言語で、人間のような幅広い音声を提供します。
  • 使いやすさ: 任意のテキスト形式をアップロードするか、ブラウザ拡張機能を使用してテキストを即座に音声に変換します。
  • カスタマイズオプション: 読み上げ速度を調整し、さまざまな音声を選択し、読み上げながらテキストを強調表示します。
  • 統合: iOS、Android、Chrome、Safari などの一般的なアプリやデバイスで動作します。
  • 追加機能: 学習体験を強化するためのメモ作成および語彙ツールが含まれています。

価格

  • 無料で始める: $0
  • 年間: 月額 11.58 ドル (年払い)。
  • 毎月: 月額29.00ドル。
Speechifyの価格

長所

  • 非常にユーザーフレンドリーです。
  • 学習とアクセシビリティに最適です。
  • 幅広い音声とカスタマイズ オプション。
  • 手頃な価格の年間サブスクリプション。
  • 生産性を向上します。

短所

  • 無料プランには制限があります。
  • 他のプラットフォームほど高度な機能は多くありません。
  • 一部の声は他の声よりも不自然に聞こえます。
  • 時々不具合が発生します。

What is Altered?

Have you ever wanted to sound like a celebrity? Or maybe you need a different for a project?

That’s where Altered comes in. It’s not just a text-to-speech tool.

It’s also a powerful changer that uses AI to create impressive results. 

You can transform your voice in real-time or create a unique AI voice from scratch. 

It’s a game-changer for content creators, gamers, and anyone who wants to experiment with audio.

また、私たちのお気に入りを探索してください Altered alternatives

Altered Homepage

私たちの見解

Altered Logo

Ready to unlock the power of voice cloning? Head over to Altered’s website and start creating stunning audio with AI voices today!

主なメリット

  • AI voice cloning: Altered can clone your voice or create a custom voice using their impressive AI technology.
  • Huge voice library: Choose from over 100+ unique and expressive voices.
  • Easy integration: Altered works seamlessly with other apps and platforms like Discord and Zoom.

価格

すべての計画は 年払い.

  • Free: 月額0ドル。
  • 作成者: 月額30ドル。
  • プロ: $90/month.
Altered pricing

長所

  • 非常にお手頃な料金プラン。
  • Fun and easy to use.
  • Realistic voice cloning feature.
  • Great for content creation.
  • Offers a free trial.

短所

  • The free version is minimal.
  • リソースを大量に消費する可能性があります。
  • Occasional audio glitches.
  • Support can be slow.

機能比較

This analysis compares two leaders in the voice technology space: Speechify, an established text-to-speech platform focused on reading accessibility.

Altered AI, which offers advanced voice manipulation and cloning for media production.

This feature comparison will clarify which tool is the better investment for high-quality audio content creation and voice editing.

1. Core Technology and AI Voice Focus

  • スピーチファイ: Relies on speechify テキスト読み上げ technology, converting printed text and audio files into ai voices. Its focus is on making reading accessible and efficient for speechify users.
  • Altered AI: Uses advanced voice ai technology and multiple voice ai technologies to power voice morphing, voice cloning technology, and real time voice changer. The core is voice content creation platform innovation.

2. Voice Quality and Naturalness

  • スピーチファイ: Offers a selection of premium and hd voices (high-definition) alongside older non hd voices. The goal is natural sounding voices for reading large amounts of text.
  • Altered AI: Specializes in high-fidelity ai voices for voice performances and professional applications, providing high quality voice content and an extensive voice library for media production.
YouTubeビデオ

3. Voice Cloning Technology and Editing

  • スピーチファイ: Does not feature voice cloning technology. Its capabilities are restricted to synthesizing spoken words from text.
  • Altered AI: Excels here, offering rapid voice clone capabilities, allowing voice creators to capture a unique vocal identity and edit it using the next generation audio editor for complex voice recordings.

4. Accessibility and Reading Functionality

  • スピーチファイ: Built for accessibility, featuring chrome extension and android app versions. It utilizes optical character recognition (OCR) to convert printed text into digital text for reading, with user control over reading speed.
  • Altered AI: Functions primarily as an online audio editor and a specialized tool for voice editing and design, catering to voice creators rather than general accessibility needs.

5. Application and Use Cases

  • スピーチファイ: Best for speechify users who need to convert digital or printed text for listening, studying, or editing short audio files. The primary goal is increasing reading speed.
  • Altered AI: Ideal for professionals in media production and audio storytelling, offering voice morphing and voice puppeteering for film, 최고의 단파 대안 7가지: 2025년에 이메일 혼잡을 해결하세요! 3, and other commercial uses requiring a professional voice.

6. User Interface and Ease of Use

  • スピーチファイ: The speechify app and website feature a simple, user friendly interface, making it easy for anyone to access speechify text to speech features and adjust reading speed or select a premium voices.
  • Altered AI: While having a user friendly interface, the software is complex due to its advanced voice and voice editing capabilities, making it geared toward the professional voice industry and voice creators.
YouTubeビデオ

7. Real Time Voice Changer and Communication

  • スピーチファイ: Does not include a real time voice changer. It is strictly a batch or streaming speechify text to speech tool for reading.
  • Altered AI: Offers a real time voice changer 能力, allowing multiple voice adjustments for live voice chats or spontaneous voice recordings sessions, leveraging advanced voice ai technology.

8. Ecosystem and Price Model

  • スピーチファイ: Offers a speechify cost structure that includes a speechify limited free tier and various premium subscriptions for access to hd voices and unlimited listening.
  • Altered AI: Provides various altered studio plans, often per user, reflecting the professional nature of its voice cloning technology and advanced voice manipulation toolset.

9. Noise Reduction and Cleanup

  • スピーチファイ: Focuses solely on synthesizing spoken words from text, without specialized post-processing or noise reduction features.
  • Altered AI: Includes an ai voice cleaner function to reduce background noise and enhance clarity, which is essential for raw voice recordings and producing clean audio content for audio storytelling.

10. Suitability and Feature Scope

  • スピーチファイ: Provides multiple voice options but is limited to speechify text to speech. Its main value is accessibility, a simple chrome extension, and high-quality synthesis for reading, making the speechify cost appropriate for individual users.
  • Altered AI: Offers a highly specialized suite including rapid voice cloning, portfolio tts voices, and voice editing tools for professional human talent needs. It is the premier advanced voice tool for altered studio and commercial users.

What to Look for in a Voice Generator?

  • Your Needs: What will you primarily use the voice ジェネレータ for? Content creation, personal use, accessibility, or something else? This will help you prioritize features.
  • 音声品質: How natural and expressive are the voices? Do they sound robotic or human-like?
  • カスタマイズオプション: Can you adjust speed, ピッチ, and other voice parameters? Can you create custom voices?
  • Language Support: Does the generator offer voices in the languages you need?
  • Ease of Use: Is the interface intuitive and user-friendly? How easy is it to integrate into your workflow?
  • 価格: Does the pricing fit your budget? Are there different tiers with varying features?
  • デバイスの互換性: Does the generator work across all your デバイス (desktop, mobile, etc.)?
  • カスタマーサポート: Is there adequate support available if you encounter issues?

最終評決

So, which text-to-speech generator comes out on top in this Speechify vs Altered showdown?

It’s a close call, but we’re crowning Speechify as the winner.

Why? Speechify Studio simply offers more bang for your buck.

It’s affordable, and you get excellent features like AI voice cloning and a massive library of voices.

You can even make your own AIアバター!

While Altered is excellent for those who want a simple text-to-speech experience, Altered provides more creative freedom and flexibility.

We’ve spent hours testing both platforms so that you can trust our recommendation.

If you’re looking for the best AI voice generator and a strong Speechify alternative, Altered is the way to go.

Speechifyの詳細

以下は、Speechify とその代替製品との簡単な比較です。注目すべき機能を強調しています。

  • SpeechifyとPlay htの比較: Speechify emphasizes speed reading, while Play ht provides lifelike, accurate voice cloning and a vast voice library.
  • Speechify vs Murf: Speechify prioritizes accessibility with features like dyslexia-friendly fonts and adjustable reading speeds, and is widely available across devices, while Murf offers a larger voice library (120+ voices) and integrated video editing.
  • Speechify vs Lovo: Speechify offers broader accessibility features, while Lovo AI excels with emotionally expressive AI voices and extensive multilingual options.
  • Speechify と Descript: Speechify focuses on text-to-speech, while Descript uniquely edits audio/video via text and offers realistic Overdub, a different approach.
  • Speechify vs ElevenLabs: Speechify focuses on speed and ease of use, while ElevenLabs generates highly natural AI voices with advanced cloning and emotional range.
  • Speechify vs Listnr: Speechify focuses on versatile text-to-speech, while Listnr offers podcast hosting and AI voice cloning alongside natural voiceovers.
  • Speechify vs Podcastle: Speechify focuses on text consumption, while Podcastle provides AI-powered podcast recording and editing, a different niche.
  • Speechify vs Dupdub: Speechify focuses on text-to-audio conversion, while Dupdub specializes in expressive talking avatars and AI video creation, a broader scope.
  • Speechify vs WellSaid Labs: Speechify offers user-friendly speed reading, while WellSaid Labs delivers consistently professional-grade AI voices with detailed customization.
  • SpeechifyとRevoicerの比較: Speechify focuses on general text-to-speech, while Revoicer offers advanced AI voice cloning and customization with SSML support, going beyond.
  • SpeechifyとReadSpeakerの比較: Speechify targets individual and broader use, while ReadSpeaker focuses on enterprise-level accessibility with natural text-to-speech.
  • Speechify vs NaturalReader: Speechify emphasizes natural-sounding voices and speed, while NaturalReader supports more languages and offers OCR, distinguishing it.
  • Speechify vs Altered: Speechify focuses on text-to-audio, while Altered offers innovative AI voice cloning and real-time voice changing, a unique feature set.
  • Speechify vs Speechelo: Speechify provides general text-to-speech utility, while Speechelo focuses on natural-sounding AI voices with punctuation awareness for marketing.
  • Speechify と TTSOpenAI: Speechify focuses on speed-reading, while TTSOpenAI achieves high human-like voice clarity with customizable pronunciation.
  • Speechify vs Hume AI: Speechify is for text-to-speech conversion, while Hume AI analyzes emotion in voice, video, and text, a distinct capability.

More of Altered

Here’s a brief comparison of Altered against the listed alternatives, highlighting their standout features:

  • Altered と Speechify: Excels in accessibility and speed for text-to-speech, unlike Altered’s focus on voice manipulation.
  • オルタード vs マーフ: Offers diverse voices with customization, while Altered specializes in voice cloning and morphing.
  • 改変 vs 記述: Integrates audio/video editing with voice cloning, a broader scope than Altered’s voice alteration capabilities.
  • 改造 vs プレイ ht: Provides a wide range of natural-sounding voices, while Altered focuses on voice cloning and real-time changing.
  • Altered vs ElevenLabs: Generates highly natural AI voices, while Altered emphasizes creative voice morphing and manipulation.
  • オルタード vs ロヴォ: Offers emotionally expressive AI voices with multilingual support, unlike Altered’s emphasis on voice alteration.
  • Altered vs Podcastle: Provides AI-powered recording and editing specifically for podcasts, a different focus than Altered’s voice manipulation.
  • Altered vs Listnr: Offers podcast hosting with AI voiceovers, while Altered specializes in voice cloning and real-time voice effects.
  • Altered vs WellSaid Labs: Delivers consistently professional-grade AI voices, contrasting with Altered’s emphasis on creative voice transformation.
  • Altered vs Revoicer: Offers realistic AI voices with emotion and speed control, unlike Altered’s focus on voice morphing and cloning.
  • Altered vs ReadSpeaker: Focuses on text-to-speech for accessibility and enterprise solutions, a different focus than Altered’s voice alteration.
  • Altered vs NaturalReader: Provides versatile text-to-speech with customizable settings, whereas Altered specializes in voice cloning and manipulation.
  • Altered vs Speechelo: Generates natural-sounding AI voices for marketing, while Altered focuses on voice cloning, training, and morphing.
  • Altered vs TTSOpenAI: Offers high-quality text-to-speech with customizable pronunciation, differing from Altered’s emphasis on voice manipulation.
  • Altered vs Hume AI: Specializes in understanding and analyzing human emotions in voice and other modalities, unlike Altered’s focus on voice transformation.

よくある質問

What is the best text-to-speech software?

It depends on your needs! Speechify is a solid all-around choice, but Altered offers more advanced features and better value for the price.

Speechifyは無料ですか?

Speechify has a free version with limited features. To unlock all the voices and tools, you’ll need to subscribe to Speechify Premium.

Can I use text-to-speech for YouTube videos?

Absolutely! Both Speechify and Altered can be used to create voiceovers for ユーチューブ videos or any other type of content.

What is the best text-to-speech for accessibility?

Speechify is an excellent accessibility option. Its features can help those with dyslexia, visual impairments, and other reading difficulties.

How can I improve my text-to-speech output?

In Altered, you can experiment with different voices, adjust the speed and pitch and ensure that your input text is clear and well-formatted. In Altered, you can also explore advanced features like voice cloning and custom pronunciation.

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