NaturalReader vs. Altered: 2025 年のトップ AI 音声ジェネレーター?

執筆者 | 2025年1月20日

勝者
Altered logo
8.0
  • 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 $1/month
準優勝
naturalreader
7.0
  • Multiple Voice Styles
  • Emotive AI Voices
  • 音声クローン
  • AI Script Assistant
  • Advanced Tunes
  • Yearly 仕事 50% OFF
  • Paid Plans from $24.5/month
ナチュラルリーダーと変更版

Choosing the right text-to-speech (TTS) tool can be a real headache.

You need natural-sounding voices, easy-to-use features, and a price that doesn’t break the bank.

Two popular options often come up: NaturalReaders and Altered.

But which one is better? This can be a tough choice.

In this article, we’ll break down NaturalReaders vs Altered, comparing their key features, voice quality, pricing, and overall user experience. 

By the end, you’ll know exactly which AI 音声ジェネレータ fits your needs. Let’s dive in!

NaturalReader vs Altered Overview

To give you the best comparison, we’ve used NaturalReaders and Altered.

We tested their features, listened to various voices, and explored different use cases.

This hands-on experience allows us to provide a practical comparison of their strengths and weaknesses.

naturalreader CTA

Unlock a world of information with NaturalReader! 🌎✨ With over 100+ natural-sounding voices in 30+ languages.

710点満点中

価格: Yearly Business 50% off. The premium plan starts at $24.5/month.

主な特徴:

  • OCR
  • Multiple Languages
  • Audio File Conversion
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!

810点満点中

価格: Free trial available. Paid plans start at $1/month

主な特徴:

  • Voice Morphing
  • AI Voice Effects
  • 音声クローン

Что-то, что помогает думать, а не мешает. Мы рассмотрели множество вариантов.

Have you ever needed a computer to read 제니 vs 라이트소닉: 2025년 최고의 AI 작가 7 aloud? That’s what NaturalReaders does.

It’s a text-to-speech (TTS) software. It converts written words into spoken audio.

You can use it on your computer, phone, or even online. It’s helpful for many things.

Like listening to documents, ebooks, or web pages. Pretty neat.

また、私たちのお気に入りを探索してください NaturalReaderの代替品

naturalreader CTA
ナチュラルリーダー
7.0

Вы можете делать заметки. Создавать базы данных. Планировать проекты.

主なメリット

  • Supports 16 different languages. This makes it useful for global content.
  • Offers over 100 natural-sounding voices. You have many choices for how you want the text to sound.
  • Features OCR (Optical Character Recognition). This lets you convert scanned documents or images into editable and readable text.
  • Available on multiple platforms. Use it on Windows, マック, iOS, Android, and online.

価格

  • Возможности — это ваш персональный цифровой мозг. Он связывает все воедино — заметки, файлы, веб-сайты — и создает для вас соединения.
  • Yearly Small Business: Он создан для размышлений.
  • 月額プラン: AFFiNE Pro — это инструмент с открытым исходным кодом для команд.
naturalreader pricing

長所

  • XTiles против AFFiNE Pro
  • Obsidian — ваш персональный цифровой мозг. Это приложение для заметок.
  • Он обожает разметку. Вы связываете заметки между собой.
  • It creates a web of ideas. It’s like building your own Wikipedia.
  • Works across デバイス.

短所

  • : How much each product cost, and what you got for the money. We looked at both free and
  • The interface feels outdated.
  • plans to see the true value.
  • カスタマーサポートが遅くなる場合があります。
  • : We checked for key features like how to store notes, create a business plan, and manage your knowledge base. We also looked for advanced features like mind maps,

What is Altered?

Altered is different from your typical text-to-speech. It focuses more on voice modification.

Think of it as a voice studio on your computer. You can change your voice.

Or create entirely new AI voices. It’s used often for voice acting, content creation, and gaming.

It’s all about manipulating and creating unique sounds.

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

Altered Logo
改変
8.0

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

  • Voice cloning: Create a digital copy of your voice.
  • Voice morphing: Blend voices seamlessly.
  • AI voice effects: Apply unique audio effects.
  • Real-time processing: Change voices on the fly.

価格

Altered offers a free trial and a range of subscription plans to choose from:

  • Free: $1/month
  • Real-time: $1/month
  • 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.
  • Not ideal for long-form reading.

NaturalReader vs Altered Feature Comparison

This section directly compares NaturalReaders and Altered across key features, helping you determine which tool better suits your needs. 

This feature comparison will help you make the best choice when you look for the best text-to-speech.

Text to Speech Core Functionality

  • NaturalReader: Focuses on converting various text file formats (doc, pdf, odt, ods, google docs) into natural-sounding speech output, transforms any text (text into spoken words). Natural reader offers a smooth reading experience. It provides a complimentary free trial and free plan available, making it accessible to listen to content. Naturalreader provides a great way to convert text to text into speech.
  • 改変 offers text-to-speech conversion, but its main focus is speechified, manipulation, and creating unique voiceovers.

Voice Quality and Customization

  • NaturalReader: NaturalReader offers different voices and accent options, allowing users to adjust their reading speed. It aims for lifelike voices, especially in its paid plan. This best text-to-speech service also offers good speech output.
  • Altered: Excels in voice format and modification, allowing morphing, blending, and application of effects. It offers much greater customization than a natural reader provides. If you are looking for the best text-to-speech with extensive voice customization, Altered is the best choice.
naturalreader multiple voice styles

Supported File Formats

  • NaturalReader: Supports various file formats, including pdf, doc, txt, odt, ods, and images (via OCR). This is crucial for accessibility and productivity.
  • Altered: Primarily works with audio files, focusing on direct recording and editing. It does not directly convert text from documents.

OCR (Optical Character Recognition)

  • NaturalReader: Includes OCR, extracting text from images and scanned documents. This is a valuable feature for e-learning そして making it accessible to older documents.
  • Altered: Does not offer OCR.
Text-to-speech in Altered

Pricing and Plans

  • ナチュラルリーダー offers a free plan and one-time purchase options, providing long-term value. The paid plan unlocks more features and voices.
  • Altered: It uses a subscription model, which can be more expensive in the long term but provides access to advanced features.

ユースケース

  • ナチュラルリーダー is ideal for e-learning, personal use, proofreading, and improving accessibility and productivity. It makes it accessible to listen to content from various sources.
  • Altered: Geared towards content creators, voice actors, and audio professionals who need advanced voice manipulation.

User Interface and Experience

  • NaturalReader: Has a simpler, more straightforward interface, making it easy to convert text to text into spoken words and adjust reading speed.
  • Altered: It has a more complex interface due to its advanced features.

What to Look For When Choosing an AI Voice Generator?

Here are some additional key considerations when choosing between NaturalReaders and Altered (or any text-to-speech or voice modification software):

  • Intended Use: The most crucial factor is whether you focus primarily on listening to content (NaturalReaders) or creating unique voiceovers and manipulating audio (Altered).
  • 予算: NaturalReaders offers a free plan and one-time purchases, making it more budget-friendly. Altered is subscription-based, which can be more expensive in the long term.
  • Technical Skills: Altered has a steeper learning curve due to its advanced features. NaturalReaders is more user-friendly for beginners.
  • Specific Voice Needs: Do you need a wide variety of natural-sounding voices (NaturalReaders) or the ability to create highly customized and manipulated voices (Altered)?
  • Integration with Other Tools: Consider whether the software integrates with your existing workflow and audio editing software. Altered has better integration options for audio professionals.
  • カスタマーサポート: Research the quality of the customer support offered by each company.
  • Free Trial/Plan: Take advantage of free trials or plans to test the software before committing to a purchase. This allows you to experience the voice quality and features firsthand.

最終評決(私たちの選択)

NaturalReader or Altered? It depends on your needs. Need to convert text from images?

Want to listen to web pages or books? NaturalReaders is great. It’s easy.

It has many voices in 30+ accents and languages. You can even adjust the reading speed.

Naturalreader also offers text highlighting. It’s one of the best text tools for everyday use.

Do you need fancy voice changes? Want to clone your voice? Altered is better.

Check user reviews and your needs. If Natural Reader works for you, it’s a good choice.

We tested both. NaturalReaders is better for most people because it converts text into lifelike speech.

Start listening today! Unlock the full potential of speech technology!

See our related articles for alternatives to natural reader. You’ve successfully subscribed!

NaturalReaderの詳細

以下は、NaturalReader と他のツールの簡単な比較です。主な特徴は次のとおりです。

  • NaturalReader vs Murf AI: Murf AI はカスタマイズ可能な多様な音声を提供し、NaturalReader は自然な音声合成によるアクセシビリティに重点を置いています。
  • NaturalReader vs Speechify: Как использовать Softgen: пошаговое руководство в 2025 году 31
  • NaturalReader と Descript: Descript は、オーディオ/ビデオ編集と音声クローンを統合しており、NaturalReader のテキスト読み上げに重点を置いた機能よりも広い範囲をカバーしています。
  • NaturalReader と Play ht: Play ht は幅広い自然な音声を提供し、NaturalReader はアクセシビリティと使いやすさに重点を置いています。
  • NaturalReaderとElevenLabsの比較: ElevenLabs は、単純なテキスト読み上げに重点を置く NaturalReader とは異なり、非常に自然で表現力豊かな AI 音声を生成します。
  • NaturalReader 対 Lovo 食べる: Lovo ai は多言語サポートを備えた感情表現豊かな AI 音声を提供し、NaturalReader はアクセシビリティとシンプルさを重視しています。
  • NaturalReaderとPodcastleの比較: Podcastle は、ポッドキャストに特化した AI を活用した録音と編集機能を提供します。これは、NaturalReader のアクセシビリティ重視よりもニッチなアプリケーションです。
  • NaturalReaderとListnrの比較: Listnr は AI ナレーション付きのポッドキャスト ホスティングを提供しており、NaturalReader はさまざまなコンテンツのアクセシブルなテキスト読み上げに特化しています。
  • NaturalReader vs WellSaid Labs: WellSaid Labs は、ユーザーフレンドリーなテキスト読み上げに重点を置いている NaturalReader とは対照的に、一貫してプロフェッショナル グレードの AI 音声を提供します。
  • NaturalReaderとRevoicerの比較: Revoicer は、NaturalReader の単純なテキスト読み上げとは異なる、詳細な感情と速度制御を備えたリアルな AI 音声を提供します。
  • NaturalReaderとReadSpeaker: ReadSpeaker は、NaturalReader に似た自然なテキスト読み上げソリューションを提供しますが、エンタープライズ統合に重点が置かれています。
  • NaturalReader と Notevibes: Notevibes は、NaturalReader の一般的なテキスト読み上げ機能と比較した特定のユースケースである、顧客サービス アプリケーション用の AI 音声エージェントを提供します。
  • NaturalReader vs スピーチロ: Speechelo はマーケティング用に自然な音声の AI 音声を生成し、NaturalReader は誰もが利用できるテキスト読み上げ機能の提供に重点を置いています。
  • NaturalReader vs TTSOpenAI: TTSOpenAI は、使いやすさを重視する NaturalReader とは異なり、カスタマイズ可能な発音を備えた高品質のテキスト読み上げを提供します。
  • NaturalReader vs ヒューム AI: Hume AI は、NaturalReader のテキスト読み上げとは異なり、音声やその他の方法で人間の感情を理解し、分析することに特化しています。

More of Altered

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

  • オルタード vs マーフ AI: Murf AI offers diverse voices with customization, while Altered specializes in voice cloning and morphing.
  • Altered と Speechify: Speechify excels in accessibility and speed for text-to-speech, unlike Altered’s focus on voice manipulation.
  • 改変 vs 記述: Descript integrates audio/video editing with voice cloning, a broader scope than Altered’s voice alteration capabilities.
  • 改造 vs プレイ ht: Play ht provides a wide range of natural-sounding voices, while Altered focuses on voice cloning and real-time changing.
  • Altered vs ElevenLabs: ElevenLabs generates highly natural AI voices, while Altered emphasizes creative voice morphing and manipulation.
  • オルタード vs ロヴォ 食べる: Lovo ai offers emotionally expressive AI voices with multilingual support, unlike Altered’s emphasis on voice alteration.
  • Altered vs Podcastle: Podcastle provides AI-powered recording and editing specifically for podcasts, a different focus than Altered’s voice manipulation.
  • Altered vs Listnr: Listnr offers podcast hosting with AI voiceovers, while Altered specializes in voice cloning and real-time voice effects.
  • Altered vs WellSaid Labs: WellSaid Labs delivers consistently professional-grade AI voices, contrasting with Altered’s emphasis on creative voice transformation.
  • Altered vs Revoicer: Revoicer offers realistic AI voices with emotion and speed control, unlike Altered’s focus on voice morphing and cloning.
  • Altered vs ReadSpeaker: ReadSpeaker focuses on text-to-speech for accessibility and enterprise solutions, a different focus than Altered’s voice alteration.
  • Altered vs Notevibes: Notevibes offers AI voice agents for customer service applications, a specific use case compared to Altered’s voice manipulation capabilities.
  • Altered vs Speechelo: Speechelo generates natural-sounding AI voices for marketing, while Altered focuses on voice cloning, training, and morphing.
  • Altered vs TTSOpenAI: TTSOpenAI offers high-quality text-to-speech with customizable pronunciation, differing from Altered’s emphasis on voice manipulation.
  • Altered vs Hume AI: 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

Is NaturalReaders a good choice for listening to audiobooks?

Yes, NaturalReaders is a powerful text-to-speech tool that helps you read books by converting text into audio. It supports over 20 languages, with voices in 30+ accents and languages, allowing users to enjoy a diverse listening experience. It’s a great one-audio reader. It uses speech synthesis to create a human voice from text.

Can Altered create realistic human voices?

Altered focuses on advanced AI speech synthesis and voice output manipulation, not simply creating a human voice. While it can create unique voice output, its strength lies in allowing you to create and modify voices beyond natural human limits. It is not designed to create a natural human voice but to provide tools for allowing users to create something new.

Does NaturalReaders offer an API for developers?

Yes, NaturalReaders offers developers a speech API (speech synthesis) that allows users to integrate NaturalReaders’ powerful text-to-speech technology into their applications and easily convert text into audio.

Which tool is better for non-English content?

NaturalReaders, with its support for voices in 30+ accents and languages and more than supports over 20 languages, is generally better suited for allowing users to work with non-English content. This helps allow users with specific needs and preferences.

How do I choose between NaturalReaders and Altered?

The best choice depended on your specific needs and preferences. If you need simple text-to-audio conversion to get through books, NaturalReaders is an excellent choice. If you need advanced AI voice manipulation, Altered is better. NaturalReaders allows users to use a powerful text-to-speech tool with a human voice.

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