
Speech Central - Detailed Review
Audio Tools

Speech Central - Product Overview
Introduction to Speech Central
Speech Central is an AI-driven text-to-speech app that aims to make written content more accessible and engaging for a wide range of users. Here’s a breakdown of its primary function, target audience, and key features.
Primary Function
Speech Central’s primary function is to convert written text into spoken words, using advanced AI and text-to-speech technologies. This allows users to listen to articles, documents, ebooks, and other written content hands-free.
Target Audience
The app is particularly beneficial for individuals with visual impairments, dyslexia, and other reading challenges. It also caters to anyone who prefers listening to text, such as commuters, students, or those who want to multitask while consuming information.
Key Features
Text-to-Speech Capabilities
Speech Central supports a wide range of document formats including PDF, Microsoft Word (.docx), Microsoft PowerPoint (.pptx), OpenOffice/LibreOffice, HTML, TXT, RTF, and ebook formats like EPUB, DAISY, and FB2. It also handles emails in .eml format.
Customizable Voices
The app integrates voices from various providers such as Apple, Microsoft Azure, Google, OpenAI, and third-party offline voices. It enhances these voices to sound more natural and emotive, improving the listening experience.
Accessibility
Speech Central is fully accessible with VoiceOver and has been tested by legally blind users. It supports multiple languages and includes features like automatic language detection and dyslexia-friendly fonts.
Web and RSS Feed Support
Users can add articles to be read aloud from any web browser or RSS feeds. The app also integrates with services like Pocket to sync articles across devices.
Annotation and Export Tools
The app includes annotation tools to mark favorite texts, bookmark important paragraphs, and add comments. Users can export annotated texts to Microsoft Word (.docx) format.
Advanced PDF Handling
Speech Central’s AI detects and skips unnecessary elements like footers, headers, and footnotes in PDFs, ensuring uninterrupted reading flow. It even supports scanned PDF documents with title recognition.
CarPlay and Apple Watch Support
The app is compatible with CarPlay and includes an Apple Watch app that can play content independently of the main app.
Efficient and Affordable
Speech Central achieves its affordability through smart marketing strategies and efficient server costs, ensuring that the majority of the user’s payment goes towards app development rather than advertising.
Overall, Speech Central offers a comprehensive and user-friendly text-to-speech solution that enhances accessibility and convenience for a diverse user base.

Speech Central - User Interface and Experience
User Interface Overview
The user interface of Speech Central is crafted to be intuitive, user-friendly, and highly customizable, making it an excellent choice for those seeking a seamless text-to-speech experience.
Ease of Use
Speech Central is designed with ease of use in mind. The app allows users to listen to a variety of content, including books, web articles, emails, and scanned documents, with a simple and straightforward process. Users can swipe through items, tap on the ‘More…’ button, and then select ‘Listen Now’ to start the audio playback.
Customization Options
The app offers a wide range of customization options to enhance the user experience. Users can adjust voice pitch, reading speed, and volume settings to their liking. Additionally, the app allows for customization of font sizes, types, colors, and text highlights, which can significantly improve readability.
Voice Selection
Speech Central supports multiple voice providers, including device manufacturer’s text-to-speech engines, cloud AI voices from Microsoft Azure, Google Cloud, and OpenAI, as well as third-party offline voices. This extensive selection ensures users can choose the voice that best suits their needs, enhancing the overall listening experience.
High-Speed Listening
One of the standout features of Speech Central is its “Speed Reading Optimization” mode. This mode is activated by default for speeds exceeding 2.5x and helps minimize audio artifacts, ensuring clarity and comprehension at higher speeds. This feature is particularly useful for scenarios like driving or when users need to consume content quickly.
Additional Functionality
The app includes several additional features that enhance user engagement. Users can highlight text, add bookmarks, and leave comments on documents. The ability to export text-to-speech converted audio files and documents is also a valuable feature, allowing users to access their content in various formats.
Accessibility and Value
Speech Central is highly accessible, offering a one-time purchase option with no subscription fees, making it a cost-effective alternative to other text-to-speech apps. The app’s comprehensive feature set, combined with its affordability, makes it an attractive option for users seeking a high-quality text-to-speech experience.
Conclusion
Overall, the user interface of Speech Central is designed to be user-friendly, highly customizable, and feature-rich, ensuring a positive and engaging user experience.

Speech Central - Key Features and Functionality
Overview
Speech Central stands out in the audio tools and AI-driven product category with several key features that enhance user experience and accessibility. Here are the main features and how they work:
Multiple Voice Providers
Speech Central allows users to choose from a variety of voice providers, including device manufacturer’s text-to-speech engines, cloud AI voices like Microsoft Azure AI, Google, OpenAI, and open-source voices. This diversity ensures users can select the voices that best suit their needs, whether they prefer free and unlimited use options or high-quality cloud-based voices.
Natural-Sounding Voices
One of the standout features of Speech Central is its ability to enhance voices to sound more natural. This is achieved through special processing that reduces robotic and repetitive patterns in speech, significantly improving the listening experience, especially for long-form documents. This enhancement is particularly beneficial for individuals with ADHD or those who need to listen to extensive texts.
High-Speed Optimization
Speech Central includes an optimization mode for high-speed listening. Recognizing that human speech comprehension decreases at speeds higher than 2.5x, the app adjusts the speech to maintain clarity and comprehension even at faster speeds. This feature is crucial for users who need to process information quickly without sacrificing understanding.
Open-Source TTS Engines
Speech Central supports the integration of open-source Text-to-Speech (TTS) engines, such as those compatible with the OpenAI API. This allows users to reduce their TTS-related expenses by using local devices as servers or covering only minimal server costs. While these voices may not match the naturalness of commercial options, they offer a cost-efficient alternative with decent quality.
Customization and Accessibility
The app provides extensive customization options, including programmable audio buttons and the ability to customize pronunciations. Users can also listen to web headlines with the option to add related articles, enhancing productivity and accessibility. These features are particularly useful for educational purposes and for individuals with specific needs.
Integration with Advanced AI Technologies
Speech Central integrates OpenAI’s advanced text-to-speech technology, offering premium and accessible voice synthesis options. This integration sets a new benchmark for voice quality and realism, surpassing previous leaders like Amazon Polly and Google WaveNet. Users can experience sophisticated and natural-sounding voices directly on their iPhones, with multiple voice choices and customization options available.
Practical and Innovative Uses
The app supports various practical uses, such as exporting audio files, backing up data, and syncing data across devices. It also allows users to customize the functions of audio buttons for high productivity and accessibility. These features make Speech Central a versatile tool for a wide range of users.
Conclusion
In summary, Speech Central’s integration of AI-driven technologies, multiple voice options, high-speed optimization, and extensive customization features make it a highly versatile and user-friendly text-to-speech app. These features collectively enhance the listening experience, accessibility, and overall value for users.

Speech Central - Performance and Accuracy
Evaluation of Speech Central’s Performance and Accuracy
Accuracy and Performance
Speech Central’s primary focus is on delivering high-quality text-to-speech experiences. The app is noted for its natural-sounding voices, which are enhanced to improve the listening experience. This is achieved by leveraging various voice providers, including device manufacturers’ text-to-speech engines, cloud AI voices from companies like Microsoft Azure and Google, and third-party offline voices. The accuracy of Speech Central’s text-to-speech functionality is not explicitly measured in terms of Word Error Rate (WER), which is a standard metric for speech recognition systems. However, the app’s emphasis on natural-sounding voices suggests a commitment to clarity and comprehension.High-Speed Listening Optimization
One of the standout features of Speech Central is its “Speed Reading Optimization” mode. This mode is specifically designed to improve comprehension at high listening speeds, beyond the typical 2.5x speed where human speech and standard text-to-speech voices often become less clear. This feature minimizes audio artifacts and enhances clarity, allowing users to listen to content at speeds up to 3x and beyond without compromising understanding.Limitations and Areas for Improvement
While Speech Central excels in providing natural-sounding voices and optimizing high-speed listening, there are a few limitations and areas that could be improved:High-Speed Limitations
Although the app optimizes for high speeds, there is still a limit to how fast speech can be comprehended. Beyond certain speeds, the nuances of human speech may still affect comprehension.Customization and User Preferences
While the Speed Reading Optimization mode is customizable, there might be room for further personalization options to cater to a wider range of user preferences.Integration and Compatibility
Ensuring seamless integration with various devices and platforms is crucial. Speech Central supports multiple platforms, but any compatibility issues could impact user experience.User Experience and Engagement
Speech Central is designed to be user-friendly, with features like customizable speed reading and support for multiple voice providers. The app’s ability to enhance podcast consumption and audiobook listening at high speeds makes it a valuable tool for both entertainment and learning. In summary, Speech Central performs well in terms of providing natural-sounding voices and optimizing high-speed listening. However, there may be some limitations at very high speeds and potential areas for further customization and integration improvements. Overall, the app is a strong contender in the audio tools AI-driven product category, particularly for users who need to consume content efficiently.
Speech Central - Pricing and Plans
Pricing Structure
Speech Central offers a straightforward and competitive pricing model:One-Time Purchase
Speech Central is available for a one-time purchase, rather than a subscription-based model. This makes it a more cost-effective option compared to other text-to-speech apps like Speechify and Voice Dream Reader Pro.Platform-Specific Pricing
- For iOS, the app is priced at $9.
- For macOS, the app is priced at $10.
Free Tier
Speech Central offers a customizable free tier with the following features:- Limited Quantity but High Quality: Users can import one book per month and two articles per day, all with unlimited quality voices. There are no ads in the free tier.
- Customizable Free Tier: Users can opt for unlimited quantity but with limited quality voices. This allows for higher usage but with some restrictions on voice quality and speed.
Premium Features
By purchasing the app, users get full access to its premium features, including:- High-Quality Voices: Access to Apple’s premium text-to-speech voices and Microsoft Neural Voices, which match or surpass the quality of voices offered by Speechify.
- Customization Options: Users can adjust voice pitch, reading speed, and volume settings. The app also supports language detection, different voice selections, and customizable font sizes, types, colors, and text highlights.
- Content Support: Users can listen to books, web articles, emails, and scanned documents.
- Additional Features: The app allows users to export audio files, highlight text, add bookmarks, and leave comments in their documents.
Upgrade Options
If users need unlimited content imports, they can upgrade for a small fee, which is significantly cheaper than the subscription costs of other apps. For example, upgrading to unlimited imports costs just $10, a fraction of what Speechify charges annually.
Speech Central - Integration and Compatibility
Speech Central Overview
Speech Central, a leading text-to-speech (TTS) app, is designed to be highly integrative and compatible across a wide range of devices and platforms, making it a versatile tool for various user needs.
Cross-Platform Compatibility
Speech Central is available on all major platforms, including iOS, Android, macOS, and Windows. This cross-platform compatibility ensures that users can access the app regardless of their device ecosystem, providing a consistent user interface and functionality across all platforms.
Integration with Open-Source TTS Engines
One of the notable features of Speech Central is its support for open-source TTS engines. Users can integrate these engines, such as those compatible with the OpenAI API, to reduce costs associated with commercial TTS solutions. For example, the openedai-speech engine, based on Coqui AI’s xtts_v2 and/or piper tts, can be set up to work with Speech Central. This integration allows users to manage their server costs and maintain a level of voice quality that is superior to the built-in voices on many devices.
Setting Up and Connecting Servers
For users comfortable with managing server infrastructure, setting up an open-source TTS engine involves connecting the server to Speech Central. This is done by going to the app’s settings, selecting the speech options, and entering the custom URL for the server. While this process may not be straightforward for all users, it offers a cost-effective alternative to commercial APIs.
Data Syncing and Accessibility
Speech Central allows for data syncing across Apple devices, including the current position in the text. This feature enhances user productivity and accessibility, especially for those who use multiple Apple devices. The app is also tested to be accessible by legally blind users and supports various document types such as PDF, Microsoft Word, and .epub files.
Customization and Keyboard Shortcuts
The app offers extensive customization options, with over 80 settings available. This includes the ability to adjust voice pitch, reading speed, and other preferences. Additionally, Speech Central provides a wide selection of keyboard shortcuts to control the speed and browse the text being read aloud, making it highly user-friendly.
Privacy and Security
User data privacy is a priority for Speech Central. The app collects only analytics data with no identifiable reference to the user or imported content, ensuring that user information remains private even when syncing is enabled.
Conclusion
In summary, Speech Central’s integration with open-source TTS engines, its cross-platform compatibility, and its extensive customization options make it a highly versatile and accessible tool for users across different devices and platforms.

Speech Central - Customer Support and Resources
Customer Support Options
Speech Central, a leading text-to-speech app, offers several customer support options and additional resources to ensure users have a smooth and effective experience.Support Policies
Speech Central has a clear support policy that outlines how different types of inquiries are handled. Here are the key points:Help Documentation
For questions already answered in the help documentation, users will be directed to the specific help file rather than receiving individual responses.Learning Requests
Questions about using the app that are not covered by the help documentation may be considered for future development to improve the documentation.Bug Reports
All reproducible bugs are given high priority and will be fixed. Users are encouraged to follow a guide on submitting comprehensive bug reports to facilitate prompt resolution.Development Requests
Suggestions for new features or improvements are handled according to a specific development request policy.Technical Support
For technical issues, Speech Central provides detailed guidance:Device-Related Issues
Users with software or hardware problems on their devices or data provider issues need to contact the respective support teams.Voice-Related Issues
Since Speech Central does not provide voices itself, users should contact the support of their voice provider. If the voices are provided by the operating system, users should contact the OS support.Beta Software
Issues with beta versions of operating systems are generally not considered as bug reports and should be reported to the OS manufacturers.Additional Resources
Speech Central offers several resources to help users:iOS Help
A comprehensive guide on how to use the app on iOS devices, including how to read aloud web pages, import files from cloud services, and customize pronunciations.Comparison Charts
Detailed comparison charts between Speech Central and other text-to-speech apps like Voice Dream Reader and Speechify are available to help users make informed decisions.Videos and Tutorials
There are video tutorials that demonstrate how to use various features of the app, such as listening to web headlines, adding articles, and importing files.Updates and Features
The app is regularly updated with new features and improvements. Recent updates include:Rewritten App
The app has been completely rewritten for iOS and macOS, incorporating over 1000 improvements, including enhanced accessibility features.Multi-Document Support
The app now supports opening multiple documents at once in multiple windows on iPad and Mac.Google Cloud Text-to-Speech Support
The latest version includes support for Google Cloud Text-to-Speech voices, adding to the existing support for Microsoft Azure and OpenAI voices. By providing these support options and resources, Speech Central aims to ensure that users can effectively utilize the app’s features and resolve any issues they may encounter.
Speech Central - Pros and Cons
Advantages of Speech Central
High-Speed Listening Optimization
Speech Central introduces a groundbreaking “Speed Reading Optimization” mode, particularly useful for high-speed listening. This feature minimizes audio artifacts and enhances clarity at speeds beyond 2.5x, making it easier to comprehend audio content at accelerated rates.
Customization and Control
The app offers a wide range of customization options, including the ability to customize voice, appearance, and various other parameters. Users can also customize audio buttons for high productivity and accessibility, and control the speed and position of the text being read aloud.
Multi-Format Support
Speech Central supports a broad array of document and ebook formats, such as PDF, Microsoft Word (.docx), Microsoft PowerPoint (.pptx), OpenOffice/LibreOffice, .html, .txt, .rtf, .epub, DAISY, and .fb2. This versatility makes it a comprehensive tool for reading different types of content.
Accessibility Features
The app is highly accessible, tested to be usable by legally blind users, and includes features that help individuals with visual impairments and disabilities like dyslexia. It also supports automatic language detection for major languages.
Cost-Effective
Speech Central is significantly cheaper than many of its competitors, offering a one-time purchase option for lifetime use, which is particularly beneficial for long-term users. It costs around $9, making it a cost-effective solution compared to subscription-based models of other apps.
Security and Privacy
The app adheres to high security and privacy standards, with no ads or spyware. It collects only crash data, ensuring user data remains private.
Disadvantages of Speech Central
Limitations with Certain File Types
DRM-protected books, such as Kindle books, cannot be imported into the app due to vendor restrictions. Additionally, there can be issues with uploading PDFs, where sentences and words may be broken up, affecting playback quality.
Voice Quality
Some users have noted that the voices can sound somewhat robotic and bland, even though the app offers a wide selection of voices, including Microsoft Azure AI voices. This can be a drawback for users seeking more expressive voices.
Minor Technical Issues
There have been reports of minor technical issues, such as the app reverting to a default voice when switching between articles and the need for occasional resets. However, the developer is active in addressing these issues.
Internet Dependency for Some Features
While the app can function offline, some AI-based features may not work as expected without a stable internet connection.
Overall, Speech Central offers a rich set of features that make it a valuable tool for text-to-speech needs, despite some minor drawbacks related to file compatibility and voice quality.

Speech Central - Comparison with Competitors
Unique Features of Speech Central
Enhanced Voice Quality
Speech Central uses a proprietary engine to infuse voices from Apple, Microsoft Azure, Google, and OpenAI with emotion and variation, making the listening experience more natural and engaging.
Comprehensive PDF Support
The app offers advanced PDF support, detecting and skipping footers, headers, footnotes, and long web links, even in scanned documents. This ensures an uninterrupted reading flow.
Extensive Web Support
Speech Central allows users to listen to web headlines and articles, including RSS feeds, with the ability to add articles from the headlines page or from Safari using the Pocket extension.
Customization and Control
Users can customize audio buttons and control the speed and text browsing. The app also supports CarPlay and has built-in knowledge and text annotation tools.
No Subscription for Premium Tier
Unlike many competitors, Speech Central does not require a subscription for its premium tier. The free tier is limited by quantity but not by quality.
High-Speed Optimization
Speech Central has a special optimization mode to increase comprehension at high speeds, addressing the issue of reduced nuances in human speech at higher speeds.
Comparison with NaturalReader
Voice Quality and Subscription
NaturalReader relies on Microsoft Azure voices and requires a subscription. It offers two subscription levels, but the experience in the free tier is significantly downgraded. In contrast, Speech Central provides high-quality voices without the need for a subscription.
Customization and Features
NaturalReader is described as a bare-bones app with limited customization options, whereas Speech Central offers a wide range of features and customization options.
Multi-Platform Support
NaturalReader has better multi-platform support, working across devices outside the Apple ecosystem, which is currently not fully matched by Speech Central.
Comparison with Speechify
Subscription Model
Speechify also follows a subscription-based model, offering premium voices at a higher cost. Speech Central, however, provides similar voice quality without the subscription fees.
Feature Set
Speechify is known for its high-quality voices but lacks the extensive feature set offered by Speech Central, such as advanced PDF and web support, and customization options.
Potential Alternatives
Voice Dream Reader
This app is another competitor in the text-to-speech category, known for its wide range of voices and features. However, it may not match the level of customization and the proprietary voice enhancement of Speech Central.
NaturalReader and Speechify
For users who prioritize multi-platform support and are willing to pay for premium voices, NaturalReader or Speechify might be viable alternatives. However, these apps come with higher costs and fewer features compared to Speech Central.
In summary, Speech Central stands out for its enhanced voice quality, comprehensive support for PDFs and web content, extensive customization options, and the absence of a subscription requirement for its premium tier. While alternatives like NaturalReader and Speechify offer high-quality voices, they come with significant costs and fewer features.

Speech Central - Frequently Asked Questions
Here are some frequently asked questions about Speech Central, along with detailed responses:
Q: What makes Speech Central’s text-to-speech experience unique?
Speech Central stands out with its proprietary engine that enhances the output of various voices, including Apple’s voices and AI voices from OpenAI, Azure, and Google. This engine infuses the readings with emotion and variation, making the voices sound more natural and improving the overall listening experience.
Q: How does Speech Central handle PDF documents?
Speech Central offers the best PDF support among text-to-speech apps. It uses advanced artificial intelligence to detect and skip footers, headers, footnotes, in-text citations, and long web links, ensuring an uninterrupted reading flow. Even scanned PDF documents are imported with titles recognized.
Q: Can I listen to web articles and headlines with Speech Central?
Yes, Speech Central provides excellent web support. You can listen to articles and headlines, including RSS feeds. Articles can be added from the headlines page or directly from Safari, and you can also send articles from your desktop browser using the Pocket extension.
Q: What document formats does Speech Central support?
Speech Central supports a wide range of document and office formats, as well as e-book formats. This versatility makes it a comprehensive tool for reading various types of content.
Q: Does Speech Central offer customization options?
Yes, Speech Central provides a wide range of customization options. You can customize the voice, appearance, and various other parameters. Additionally, you can customize the functions of audio buttons to control the speed and browse the text that is read aloud.
Q: Is Speech Central accessible for users with disabilities?
Speech Central is highly accessible. It is completely free when used with VoiceOver and has been tested to be accessible by legally blind users. The app also integrates well with other accessibility features, making it one of the leading global text-to-speech brands for accessibility.
Q: Can I use Speech Central with multiple languages?
Yes, Speech Central supports dozens of languages that have text-to-speech support on the device. The app also features automatic language detection from the content, making it convenient for users who need to read text in different languages.
Q: How does Speech Central handle data privacy?
Speech Central prioritizes data privacy. No data is collected, even when syncing is enabled, ensuring that your information remains private.
Q: Are there any additional features like CarPlay and Apple Watch support?
Yes, Speech Central supports CarPlay and has an Apple Watch app that can play content independently of the main app. This allows for greater flexibility and convenience in using the app on different devices.
Q: Can I export text and annotations from Speech Central?
Yes, you can export the text with annotations to the .docx format and also export the text to an audio file. This feature is useful for further editing or sharing the content.
Q: Is there a free tier available for Speech Central?
Yes, Speech Central offers a free tier that is limited by the quantity of content you can process, but not by the quality. The premium tier does not require a subscription, making it a valuable option for users.

Speech Central - Conclusion and Recommendation
Final Assessment of Speech Central
Speech Central stands out as a highly reliable and feature-rich text-to-speech (TTS) app, making it an excellent choice for various users, particularly those seeking high-quality audio output at an affordable price.
Key Features and Benefits
- Natural-Sounding Voices: Speech Central enhances voices to sound more natural, significantly improving the listening experience. It supports multiple voice providers, including device manufacturers’ text-to-speech engines, cloud AI voices like Microsoft Azure and Google, and third-party offline voices.
- Optimized for High Speed: The app includes a special optimization mode to increase comprehension at high reading speeds, which is particularly beneficial for users who need to consume large amounts of text quickly.
- Affordability: Speech Central is cost-effective, offering a one-time purchase option with no subscription fees. This makes it a more economical choice compared to competitors like Speechify and Voice Dream Reader Pro.
- Customization and Additional Functionality: Users can adjust settings such as voice pitch, speed, volume, font size, and text contrast. The app also allows for text highlighting, bookmarking, and commenting, as well as exporting text-to-speech converted audio files and Word documents.
- Reliability and Updates: With over a decade in the TTS market, Speech Central has built a reputation as a trusted and reliable choice, with frequent updates to ensure the app remains current and effective.
Who Would Benefit Most
- Individuals with Reading Challenges: Those with conditions like ADHD or dyslexia can benefit from the natural-sounding voices and high-speed optimization, making long-form document comprehension easier.
- Visually Impaired Users: The app’s support for various text-to-speech voices and customization options makes it an excellent tool for visually impaired individuals who rely on audio for reading.
- Busy Professionals and Students: Anyone needing to consume large amounts of text quickly, such as professionals or students, will find the high-speed reading feature and export options particularly useful.
Overall Recommendation
Speech Central is highly recommended for anyone seeking a reliable, feature-rich, and affordable text-to-speech solution. Its commitment to delivering high-quality voices, efficient server costs, and smart marketing strategies ensures that users receive maximum value without the hefty price tag associated with many other TTS apps. Whether you need to listen to books, web articles, emails, or scanned documents, Speech Central offers a comprehensive and user-friendly experience that caters to a wide range of needs.