Readspeaker vs Altered: Best AI Voice Generator in 2025?

by Fahim Joharder | Last updated Nov 21, 2025

Winner

4.5

AI Voice Generator
Speech Engine SAPI
Custom Voices
Learning Library
Speech Cloud API
Conversational AI
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Runner Up

3.5

Voice Cloning
Voice Training
Voice Morphing
Text-to-Speech
Voice Editor
Free Plan Available
Paid Plans from $30/month

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Choosing the right AI voice generator can feel overwhelming.

You want a voice that sounds natural, fits your project, and doesn’t break the bank.

Two popular options often come up: ReadSpeaker and Altered. But which one is the best?

This comparison dives deep into ReadSpeaker vs Altered, looking at their features, pricing, and overall quality.

We’ll break down everything you need to know to choose your needs best. Let’s get started!

Overview

We put both ReadSpeaker and Altered through rigorous testing to give you the most accurate comparison.

We explored their voice libraries, tested different languages and accents, and evaluated the clarity and naturalness of the generated speech.

This hands-on approach allowed us to identify key strengths and weaknesses, leading to this detailed comparison.

4.5out of 5

Intrigued by ReadSpeaker’s unique features? Head over to their website and discover how their customizable voice skins. Explore its powerful features today!

Pricing: Contact them for The Pricing. Customize the plans on your own.

Key Features:

Customizable Voices
API Access
Offline Functionality

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3.5out of 5

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!

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

Key Features:

AI voice cloning
Real-time voice changing
Audio transcription

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What is ReadSpeaker?

Ever wish websites could just read to you? That’s ReadSpeaker. It’s a text-to-speech (TTS) tool.

It takes written text and turns it into spoken words. Think of it as a digital voice.

It’s used on websites, apps, and even documents. It helps make content more accessible.

It’s been around for over 20 years.

Also, explore our favourite ReadSpeaker alternatives…

Our Take

Intrigued by ReadSpeaker’s unique features? Head over to their website and discover how their customizable voice skins. Explore it today!

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Key Benefits

Customizable Voice Skins: Tweak voices to match your brand identity.
Speech-to-Text Capabilities: Easily convert spoken audio into written text.
Embedded Speech: Integrate AI voices directly into your website or applications.
Neural Voices: Access incredibly natural and expressive AI voices.
Extensive Language Support: Create content in various languages and accents.

Pricing

Contact them for The Pricing. Customize the plans on your own.

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Pros

The voices are very natural.
It offers flexible solutions.
Custom voice skins are unique.
Speech-to-text is very useful.
It has powerful integrations.

Cons

Pricing can be unpredictable.
It can be complex for beginners.
Support can be less responsive.
The interface is less intuitive.

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What is Altered?

Altered AI is different from ReadSpeaker. It doesn’t generate speech from text.

Instead, it lets you change existing voices. Think of it as a voice editor.

You can make voices sound younger, older, or even like a completely different person.

It’s used for voice acting, game development, and more. It’s a powerful tool for voice modification.

Also, explore our favourite Altered alternatives…

Our Take

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

Try altered for free Read Full Review altered alternatives

Key Benefits

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.

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Pricing

All the plans will be billed annually.

Free: $0/month.
Creator: $30/month.
Professional: $90/month.

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Pros

Very affordable pricing plans.
Fun and easy to use.
Realistic voice cloning feature.
Great for content creation.
Offers a free trial.

Cons

The free version is minimal.
It can be resource-intensive.
Occasional audio glitches.
Support can be slow.

Try Altered for free

Feature Comparison

ReadSpeaker provides an enterprise solution for accessibility and reading compliance across web pages and online documents, utilizing text to speech capabilities to protect students and their data.

Altered AI is a next generation audio editor specializing in voice morphing and voice cloning technology for media production and professional voice talent.

This comparison details their distinct technology and use cases.

1. Core Platform Goal and Input Type

ReadSpeaker: The core goal is content consumption and accessibility. It is designed to instantly listen to files, online documents, web pages, and microsoft word online pages. The focus is on providing a suite of tools for students and users.
Altered AI: The primary goal is audio transformation and voice editing. Users input existing voice recordings (live or pre-recorded audio content) to apply voice morphing or the real time voice changer effect, requiring a human talent source.

2. Use Case Specialization and Output

ReadSpeaker: Excels in educational and institutional compliance. Its primary output is audio playback of the text read, often synchronized with highlighted text for engaging consumption. It is a powerful studying tool for students and corporate training.
Altered AI: Excels in creative fields like audio storytelling and media production. The output is highly customized, high quality voice content, often transformed into a specific professional voice or character for video and commercials.

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3. Voice Transformation and Morphing

Altered AI: Specializes in voice morphing using advanced voice ai technology and multiple voice ai technologies. Its core feature is the real time voice changer, which uses voice puppeteering and a rapid voice clone to transform the vocal identity of the source audio content.
ReadSpeaker: Relies on traditional text to speech capabilities to generate the initial speech. It does not offer any voice morphing, voice cloning, or voice changer functionality for transforming existing audio content or voice recordings.

4. Accessibility and Interactive Tools

ReadSpeaker: ReadSpeaker TextAid is a dedicated accessibility solution. It features personalized settings allowing users to adjust reading speed, highlighting colors, and uses a browser extension to access other websites. Users can fill in forms and take a note in online documents.
Altered AI: Provides no specific accessibility tools for reading or learning. Its interface and tools are geared toward voice creators who need an online audio editor to apply advanced voice editing to audio content.

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5. Cloning and Identity

Altered AI: Features voice cloning technology and ai voice cloning capabilities. This is essential for replacing the vocal identity or creating a specialized, highly customized different voice for voice creators in media production.
ReadSpeaker: Voice cloning is not a core feature. ReadSpeaker focuses on providing highly reliable, consistent text to speech capabilities from its licensed portfolio tts voices to comply with enterprise standards.

6. Workflow and Interface

ReadSpeaker: Its user friendly interface is designed for quick, one-click accessibility. Users can launch the extension to listen to web pages or quickly sign in to their TextAid account to manage their personal library of documents and files.
Altered AI: The altered studio is a specialized, detailed online audio editor with deep control over voice editing and voice puppeteering. It features voice chats and a user friendly interface designed for voice creators performing deep transformations.

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7. Security and Data Protection

ReadSpeaker: As an enterprise services provider, it is aware of security best practices. It provides details on its following information guidelines, tracking log data and usage to protect institutional integrity on the site.
Altered AI: Focuses on securing raw voice recordings and ensuring the transformation process is ethical. Its advanced voice ai technology ensures audio content is handled securely throughout the media production workflow.

8. Development and Integration

ReadSpeaker: Developers can use its API links for integration into other websites and LMS systems. The suite is built to convert existing digital assets and images into accessible speech across multiple platforms.
Altered AI: Developers can integrate the real time voice changer and voice morphing capabilities into apps and platforms. The extensive voice library (portfolio tts voices) provides a wide range of options for voice creators.

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9. Licensing and Business Model

ReadSpeaker: Typically uses an institutional or site license to opt in an entire organization. It is designed for long-term usage and research in educational and corporate environments.
Altered AI: Offers a free trial and tiers catering to individual voice creators and media production studios. The high quality voice content produced is intended for specific projects and rapid output.

What to Look For in an AI Voice Generator Tool?

Here are some additional key considerations when choosing between ReadSpeaker and a voice modification tool like Altered AI:

Intended Use: This is the most crucial factor. Do you need to generate speech from text (ReadSpeaker) or manipulate existing voice recordings (Altered AI)? They serve fundamentally different purposes.
Budget: ReadSpeaker’s pricing is often custom, while Altered AI has tiered plans. Consider your budget and usage needs.
Specific Voice Needs: ered AI is the better choice. I for very specific particular cations. ReadSpeaker is more potent for more substantial, natural-sounding voices for text. Scalability: Consider how your needs might change. Will you need to support more languages or users?
Compliance: ReadSpeaker’s focus on screen reader compatibility makes it a better option if you have specific accessibility requirements (like WCAG).
Audio Quality Requirements: If you need pristine, high-fidelity audio output, carefully evaluate samples from both (if applicable to your use case).

Final Verdict

We’ve explored ReadSpeaker and Altered AI. It’s a real ultimate showdown.

They do different things. If you’re looking to turn text into speech, ReadSpeaker wins.

It’s a versatile tool for making content, especially for people who need help reading.

It has features like lots of languages and works with screen readers.

Altered AI is better if you’re a content creator and need to change voiceovers.

For easy text-to-speech that helps people who are blind or have trouble reading without needing a keyboard, ReadSpeaker is a good choice.

For most people needing text read aloud, ReadSpeaker is the way to go.

We hope this helps you to find the best tool! Start creating now!

You’ll discover the ultimate solution.

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More of Altered

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

Altered vs Speechify: Excels in accessibility and speed for text-to-speech, unlike Altered’s focus on voice manipulation.
Altered vs Murf: Offers diverse voices with customization, while Altered specializes in voice cloning and morphing.
Altered vs Descript: Integrates audio/video editing with voice cloning, a broader scope than Altered’s voice alteration capabilities.
Altered vs Play 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.
Altered vs Lovo: 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.

Frequently Asked Questions

Is ReadSpeaker free?

No, ReadSpeaker is a premium service. They usually offer custom quotes, so you must contact them for pricing. They may also provide a demo, which allows you to experiment before paying.

Can I use ReadSpeaker on my Android phone?

Yes, ReadSpeaker can be used on Android devices. It often integrates with websites and apps, making accessing digital text without a keyboard easy.

What if I need to adjust an existing voice recording?

Altered AI is better if you need to adjust an existing recording. ReadSpeaker is for digital text input, not audio editing, so you’ll want a tool with advanced features.

How does ReadSpeaker help people with learning disabilities?

ReadSpeaker makes digital text accessible. It helps people with learning disabilities or who are blind and visually impaired. It offers an efficient, keyboard-free way to go. It also provides ease of use for those who struggle with input or content creation.

Where can I learn more about voice technology?

You can unlock the power of voice technology by exploring related articles. You can also experiment with different tools. You can also look for articles online. This can help you find wider customization options.