
Acapela Group - Detailed Review
Language Tools

Acapela Group - Product Overview
Overview
Acapela Group is a Swedish-Belgian company that specializes in developing text-to-speech software and services. Here’s a brief overview of their products and key features:Primary Function
Acapela Group’s primary function is to provide high-quality text-to-speech (TTS) solutions. These solutions enable users to convert written text into spoken words, making information more accessible and engaging.Target Audience
The target audience for Acapela Group’s products is diverse and includes:Students and Educators
Their TTS solutions help students with reading difficulties, language learning, and interactive educational environments.Individuals with Speech or Language Disorders
The ‘My-own-voice’ service allows people with degenerative diseases, such as ALS, to preserve and use their own synthetic voice.Multilingual Users
With support for up to 34 languages, their solutions cater to a global audience interested in language learning and multilingual communication.Key Features
High-Quality Voices
Acapela offers a wide range of voices, including children’s voices, in multiple languages. These voices are designed to be friendly and age-appropriate, enhancing the learning experience.Text-to-Speech Capabilities
Their TTS technology provides immediate audio feedback, helping users with word recognition, attention, and error correction. It is particularly beneficial for those who read slowly or with difficulty.Voice Banking
The ‘My-own-voice’ service allows users to record and preserve their own voice, which can be used with assistive devices. This process involves recording just 50 sentences to generate a synthetic voice that maintains the user’s original timbre, accent, and intonation.Deep Neural Networks (DNN)
Acapela uses DNN technology to improve voice quality and develop new languages, dialects, and voices with accents that are currently under-resourced.User-Friendly Interfaces
Their solutions integrate with various devices and applications, such as Chromebooks, iPhones, and iPads, making it easy for users to communicate and access information. Overall, Acapela Group’s products are focused on providing accessible, engaging, and personalized voice solutions that cater to a wide range of needs and languages.
Acapela Group - User Interface and Experience
User Interface
The interface of Acapela Cloud is described as “friendly” and “advanced” in terms of user experience (UX). It features a web-based platform that allows users to easily manage their projects and generate voice prompts in the language and voice of their choice. The service includes prompt editing capabilities, making it straightforward to fine-tune the audio results. With just a few lines of code, users can integrate the Acapela Cloud API into their applications, enabling real-time vocalization.
Ease of Use
The user interface is designed to be intuitive and user-friendly. For instance, the My-own-voice solution, which allows users to create their own synthetic voice, involves a simple process of recording just 50 sentences. This process is streamlined and quick, leveraging Deep Neural Networks (DNN) to generate a voice that closely matches the user’s original voice in terms of timbre, accent, and intonation.
Overall User Experience
The overall user experience is enhanced by several factors:
- Predictive Typing and Accessibility: Tools like My-own-voice and integrations with apps such as Proloquo4Text offer predictive typing, which speeds up communication. This is particularly beneficial for users with speech or language disorders.
- Language Support: The services support multiple languages, with scripts adapted for different regions and even children’s voices. This ensures that the voice banking solution is accessible to a wide range of users.
- Security and Compliance: Acapela Cloud is compliant with the latest W3C standards for enhanced security, providing a reliable and secure environment for generating voice prompts.
- Customization: Users can customize their voice prompts and messages, with the ability to fine-tune the audio results. This customization extends to the new UX interface in My-own-voice Version 4, which includes personalized (custom) messages.
Engagement
The tools are designed to enhance user engagement through highly realistic neural voices generated by AI. These voices are highly recognizable and maintain the essence of the original voice, which helps in creating a more natural and engaging communication experience.
In summary, Acapela Group’s language tools offer a user-friendly interface, ease of use, and a positive overall user experience, making them accessible and effective for a wide range of users.

Acapela Group - Key Features and Functionality
Acapela Group Overview
Acapela Group, a leading provider of voice and speech solutions, offers several key features and functionalities in their AI-driven language tools, which are highly beneficial for various applications.
Multi-Language Support
Acapela Group’s text-to-speech (TTS) solutions support a wide range of languages, including popular ones like English, Spanish, French, and German, as well as less common languages such as Greek, Turkish, Czech, and Portuguese. This extensive language support makes their TTS platform highly versatile and accessible to a global audience.
Diverse Voice Options
The platform offers a vast repertoire of AI voices, including different accents and ages. Users can choose from over 100 different voices across 32 languages, allowing for a high degree of customization to suit various needs and preferences.
Custom Voice Creation
Acapela Group’s “My-own-voice” feature allows users to create a synthetic voice that mimics their own. This involves recording and capturing the essence of the user’s voice to create a digital copy. This feature is particularly beneficial for individuals who may lose their voice due to medical conditions, as it helps maintain their identity through synthetic speech. Currently, this feature supports up to 16 languages, with more being added regularly.
Acapela DNN Technology
Acapela’s Deep Neural Network (DNN) technology is used to create personalized voices using a limited amount of speech recordings. This technology extracts ‘Voice ID’ parameters to define the digital signature of the vocal tract and then matches the imprint of the voice with its fine-grain details, such as accents and speaking habits. This approach is more advanced than traditional unit selection methods and can work with as little as a few minutes of speech, making it highly efficient and effective.
Neural TTS Voices
Acapela’s neural digital voices, driven by VoiceAI, are now available across various platforms, including embedded, desktop, cloud, and on-premises servers. These voices are integrated into all their SDKs (version 12) and provide instant vocalization, setting a new standard for real-time natural interactions. This technology benefits voice bots, call bots, and other applications requiring lifelike, realistic audio output.
Integration with Other Platforms
Acapela Group has partnerships that enhance their TTS offerings. For example, their partnership with SoundHound Inc. integrates their TTS capabilities with Houndify’s voice AI platform, combining Speech-to-Meaning™ and Deep-Meaning-Understanding™ technologies. This integration provides companies and developers with comprehensive voice AI solutions that include unique sounding voices and the option to develop customized, branded voices.
User-Friendly Interface
The tools provided by Acapela Group are user-friendly and can be easily integrated with various devices such as iPhones, iPads, and other assistive devices. Features like predictive typing make communication faster and more convenient, especially for users who rely on these tools for daily communication.
Conclusion
In summary, Acapela Group’s language tools are characterized by their extensive language support, diverse voice options, custom voice creation capabilities, advanced DNN technology, and seamless integration with other platforms, all of which are driven by AI to provide high-quality, realistic, and personalized speech synthesis.

Acapela Group - Performance and Accuracy
Evaluating the Performance and Accuracy of Acapela Group’s AI-Driven Language Tools
Performance and Accuracy
Acapela Group has made significant strides in enhancing the performance and accuracy of their text-to-speech (TTS) technology through the use of Deep Neural Networks (DNN) and machine learning. Their Neural TTS technology allows for the generation of highly realistic and lifelike voices, which are more engaging and encourage natural interactions. The DNN technology enables the creation of digital voices from just a few minutes of existing recordings or new speech recordings, a process known as message banking or voice banking. This approach leads to better performance, accuracy, and consistency compared to traditional unit selection text-to-speech methods.Customization and Versatility
Acapela Group’s TTS solutions offer a high degree of customization and versatility. They support multiple languages, including less common ones such as Greek, Turkish, and Czech, in addition to the more popular languages like English, Spanish, and French. Users can choose from a variety of voices, accents, and even different ages, which enhances the user experience.Limitations and Areas for Improvement
While Acapela Group’s technology is highly advanced, there are some limitations. Not all voices are available from the start, and users may need to purchase additional voices to meet their specific needs. Additionally, the “my own voice” function, which allows users to create a custom voice, does not support all languages, although the company is continually adding new language support.User Experience
The quality of the voices generated by Acapela Group’s Neural TTS is generally high, but it may not always match the superior sound quality and realism offered by some other competitors, such as Speechify. However, Acapela Group’s focus on personalization and the rich vocal databases developed over 20 years contribute significantly to the overall user experience.Conclusion
In summary, Acapela Group’s TTS solutions are highly accurate and perform well, especially with their Neural TTS technology. While there are areas for improvement, such as expanding language support for custom voices and potentially enhancing sound quality further, the company’s commitment to innovation and user customization makes their products highly valuable in the AI-driven language tools category.
Acapela Group - Pricing and Plans
Pricing Structure of Acapela Group’s TTS Solutions
The pricing structure of Acapela Group’s text-to-speech (TTS) solutions involves several components and plans, which can be broken down as follows:Voice Purchases
Acapela Group allows users to purchase voices à la carte. Here are some key points:- Voices can be bought individually, with prices starting at around $20 (or €20 excluding VAT) for use on up to two computers.
- There are discounts available for multiple voice and multiple computer licenses, which can result in a 20 to 80% price reduction depending on the package.
Acapela TTS Voices App
For the Acapela TTS Voices app on Android:- The app itself is free to download, allowing users to try voices in online mode.
- To use the voices offline, users need to purchase at least one voice. The prices are EUR 3.99 for standard voices and EUR 11.99 for kids’ premium voices.
Voice Banking and Custom Voices
The “My-own-voice” feature, which allows users to create a custom synthetic voice, is part of their offerings but does not have a specified standalone price. This feature is integrated into their overall TTS solutions and may require additional costs depending on the specific use case.Voice As A Service (VaaS)
Acapela Group’s VaaS is a web API that provides text vocalization and other features like sound and text files storage, voice enumeration, and lexicon management. However, specific pricing details for VaaS are not readily available. It is likely that this service is customized based on the client’s needs and would require direct contact with Acapela Group for a quote.Free Options
- There is a free trial option for voices within the Infovox iVox Voice Manager, allowing a 30-day fully-functional trial of each voice before purchase.
- The Acapela TTS Voices app on Android allows users to try voices in online mode for free before purchasing them for offline use.
Summary
In summary, Acapela Group’s pricing is largely based on individual voice purchases, with discounts for bulk licenses, and additional features like custom voice creation and VaaS services that may require custom quotes.
Acapela Group - Integration and Compatibility
Acapela Group’s Text-to-Speech Solutions
Acapela Group’s text-to-speech (TTS) solutions are highly integrable and compatible across a variety of platforms and devices, making them versatile tools for various applications.
Integration with Android Devices
Acapela TTS for Android is a software development toolkit that allows developers to easily integrate speech synthesis into their Android applications. This toolkit includes a Java library with native libraries compatible with Android versions from 8 to the latest versions, ensuring broad compatibility.
- The High Level API written in Java enables quick and easy integration with minimal code.
- The solution is integrated with the Android audio framework, allowing smooth interaction with background music and other audio functions.
- It supports a wide range of applications, including navigation, smart toys, virtual assistants, accessibility apps, and more.
Compatibility with Other Platforms
In addition to Android, Acapela’s TTS solutions are compatible with other major platforms:
- Windows: Acapela voices are compatible with Windows-based products and applications that use the Speech Application Programming Interface (SAPI). This includes large Windows-based applications and specific devices like those from Tobii Dynavox and Jabbla.
- iOS: Acapela Voices Server (AVS) supports iOS-based applications, ensuring compatibility with system voices installed on iOS devices.
Integration with Specific Applications and Devices
Acapela’s TTS solutions are integrated with various specialized applications and devices:
- Accessibility Devices: Compatible with devices like Talk Tablet Android, NovaChat, and ChatFusion by Saltillo, as well as Look to Speak by Google Creative Lab and Speech Assistant AAC by ASoft.nl.
- Genesys Cloud: The Acapela Voice integration can be installed into Genesys Cloud using an Amazon account, enhancing the text-to-speech capabilities within this platform.
Voice Quality and Customization
Acapela’s neural TTS technology generates highly realistic voices, which can be customized to meet specific requirements of companies, brands, or devices. This includes a range of voice qualities and languages, and the ability to function offline with various memory size options.
Licensing and Pricing
The integration and use of Acapela TTS involve a software development kit (SDK) with a developer license, sample code, and support. There is a yearly fee, and royalties are based on the number of units, voices, and languages used in the developed products or applications.
Conclusion
In summary, Acapela Group’s TTS solutions offer broad compatibility and ease of integration across multiple platforms and devices, making them a versatile choice for a wide array of applications.

Acapela Group - Customer Support and Resources
Customer Support Options
Acapela Group offers several customer support options and additional resources to help users effectively utilize their language tools and AI-driven products.Direct Contact
For specific inquiries or to discuss personalized voice solutions, users can contact Acapela Group directly. The company encourages potential customers to start a conversation to find the right solution for their voice-enabled projects.Language and Voice Options
Acapela Group supports over 30 languages, including various accents, dialects, and local voices. This extensive range ensures that users can find the most suitable voice for their needs. If a particular language or voice is required, the company is open to discussions to meet these specific requirements.Voice Banking
One of the unique resources provided is the “My-own-voice” service, which allows users to record and capture their own voice to create a digital copy. This is particularly beneficial for individuals who may need to preserve their voice due to health reasons. The process involves working closely with Acapela Group’s team to ensure a highly realistic and personalized voice output.Vocal Smileys and Exclamations
Acapela Group also offers “Vocal Smileys” and exclamations, which are voice sounds and exclamations that can be integrated into communication tools like TouchChat. These sounds, such as laughing, breathing, or sneezing, can be programmed into buttons to enhance expressive communication. Detailed instructions on how to use these features are available on their website and through support resources.Technical Support and Documentation
For users who need to integrate Acapela Group’s text-to-speech solutions into their applications, there are technical resources available. For example, the GitHub repository provides a Python module that allows users to extract text-to-speech generated MP3 URLs with specific parameters such as language and selected voice. This includes installation instructions and usage examples.User Testimonials and Feedback
The company also shares testimonials from satisfied customers, which can provide valuable insights into the effectiveness and user experience of their products. These testimonials highlight the positive interactions with the Acapela Group team and the quality of their services.Conclusion
By offering these various support options and resources, Acapela Group ensures that users have the necessary tools and assistance to effectively use their language tools and AI-driven products.
Acapela Group - Pros and Cons
Advantages of Acapela Group’s Language Tools
Acapela Group offers several significant advantages in the language tools and AI-driven text-to-speech (TTS) category:Versatility and Language Support
Acapela Group’s TTS solutions support a wide range of languages, including less common ones such as Greek, Turkish, Czech, and Portuguese, in addition to popular languages like English, Spanish, French, and German.Customization and Personalization
The platform allows for extensive customization, including the choice of multiple voices, accents, and ages. Users can also create a custom voice using the “my own voice” function, which can be particularly beneficial for individuals who want to maintain their personal voice for communication.High-Quality Voices
Acapela Group is known for its high-quality voices that sound natural and expressive. The voices are so realistic that they can significantly enhance the user experience, especially for those who rely on TTS for daily communication.Multi-Platform Support
The software is compatible with various devices, including PC, iPhone, iPad, and other platforms, making it accessible across different user environments.Advanced Features
Acapela Cloud, one of their key products, offers features like voice tuning, SSML support, real-time synthesis, cloud-based integration, API integration, voice banking, emotional tones, and detailed controls over speech rate, volume, and pitch. These features ensure that the TTS output is highly adjustable and engaging.Voice Banking
Acapela Group allows users to create a synthetic voice that approximates their own natural voice through voice banking. This is particularly useful for individuals who may lose their voice due to illness or injury, as it enables them to continue communicating in a voice that sounds like their own.Disadvantages of Acapela Group’s Language Tools
While Acapela Group’s TTS solutions offer many benefits, there are also some drawbacks to consider:Cost
Some features and additional voices may require a payment, which could be a barrier for users on a budget. The initial cost of implementing and using some of the advanced features can be significant.Limited Emotional and Intonation Range
The synthetic voices, although highly natural, still lack the full range of emotions and intonation that human voices possess. This can make certain sentences sound mechanical and lacking in emotional depth.Potential for Biased Training Data
Like any AI system, the quality of the training data is crucial. If the training data is biased, the TTS output can also reflect these biases, which can be problematic in various applications.Custom Voice Limitations
While the “my own voice” function is impressive, it does not support all languages, which can limit its utility for some users.Synthetic Voice Imperfections
The synthetic voice may not always pronounce names of people and places correctly, and it may lack the exact emotional quality of a human voice in certain contexts. By weighing these advantages and disadvantages, users can make an informed decision about whether Acapela Group’s language tools meet their specific needs and preferences.
Acapela Group - Comparison with Competitors
Acapela Group
Acapela Group is a Swedish-Belgian company known for its versatile and multilingual TTS solutions. Here are some of its unique features:- Multilingual Support: Acapela Group supports a wide range of languages, including less common ones like Greek, Turkish, and Czech, in addition to popular languages such as English, Spanish, French, and German.
- Voice Variety: The platform offers a diverse selection of voices, including different accents and ages. Users can also create a custom voice using the “my own voice” function, although this is not available for all languages.
- Customization: Users can adjust parameters like pitch, speed, and volume to customize the voice to their needs. The engine also supports expressive speech synthesis, allowing voices to convey emotions.
- Integration: Integrating the Acapela TTS Engine into applications is straightforward, using their API to generate lifelike spoken audio.
Competitors
Amazon Polly
Amazon Polly is a strong competitor in the TTS market, leveraging advanced deep learning technology to synthesize natural-sounding human voices.- Neural Text-to-Speech (NTTS): Polly offers NTTS voices that provide advanced speech quality improvements and support different speaking styles, such as Newscaster and Conversational styles.
- Global Reach: Polly allows for the creation of speech-enabled apps that work in many countries with dozens of realistic voices.
Azure Text to Speech
Microsoft’s Azure Text to Speech is another significant competitor.- Voice Selection: Azure offers over 110 voices and 45 languages, allowing for customizable voices with different emotional tones and speaking styles.
- Realistic Speech: The service provides fluid, natural-sounding speech consistent with human voice patterns and intonation.
Cepstral
Cepstral is known for its premium and affordable TTS solutions.- Multi-Platform Support: Cepstral works on servers, desktops, laptops, and mobile devices, offering multiple languages, accents, and personalities.
- User-Friendly: It is recognized for its ease of use and wide range of voice options.
NextUp
NextUp is another competitor with a strong presence in the market.- TextAloud Software: NextUp offers TextAloud software that easily converts text to speech and allows output to MP3 files.
- User Base: It has a significant user base, with around 50.6K visits per month.
ReadSpeaker
ReadSpeaker provides lifelike online and offline TTS solutions.- Accessibility Focus: ReadSpeaker is strong on accessibility, making products and services more engaging for a broader audience.
- Customization: It offers a diverse range of languages and voices, similar to Acapela Group.
Unique Features and Alternatives
- Acapela Group’s Strengths: Its multilingual capabilities, wide range of voices, and customization options make it a strong choice for those needing versatile TTS solutions. The “my own voice” function is particularly unique, although it has limitations in terms of language support.
- Alternatives for Specific Needs: For those looking for advanced deep learning-based TTS, Amazon Polly might be a better option. If you need integration with Microsoft services, Azure Text to Speech could be more suitable. Cepstral and NextUp offer more affordable and user-friendly solutions, while ReadSpeaker is ideal for accessibility-focused applications.

Acapela Group - Frequently Asked Questions
What is Acapela Group and what does it do?
Acapela Group is a Swedish-Belgian company that specializes in developing text-to-speech (TTS) software and services. Formed in December 2003 from the merger of Babel Technologies, Infovox, and Elan Speech, the company provides voice solutions that transform written text into spoken words.
How does Acapela’s Text-to-Speech technology work?
Acapela’s TTS technology uses speech synthesis to read out loud any written information with smooth and natural-sounding voices. The system respects the meaning of the text, including pauses, breath groups, punctuation, and context. This is achieved through advanced algorithms, including Deep Neural Networks (DNNs), which learn the relationship between input texts and their acoustic realizations.
What are the benefits of using Acapela’s TTS for education?
Acapela’s TTS solutions are particularly beneficial for education as they help students who read slowly or with difficulty, provide feedback when writing, and assist in spotting errors during proof-reading. The voices also help individuals who suffer from visual stress when reading text on paper or screens. Additionally, the immediate audio feedback improves word recognition, attention, and memory, and helps students recognize and fix errors in their writing.
Which languages and voices are available through Acapela Group?
Acapela Group offers high-quality voices in over 30 languages, including Arabic, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Italian, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, and Turkish. They also provide a range of voices, including authentic children’s voices and adult voices, to cater to different age groups and preferences.
How can Acapela’s TTS solutions assist individuals with disabilities?
Acapela’s TTS solutions are highly beneficial for individuals with visual impairments, dyslexia, and cognitive impairments. The voices help these individuals access written information, communicate more effectively, and perform daily tasks with greater autonomy and self-confidence. The solutions are also integrated into Augmentative and Alternative Communication (AAC) systems to support users with impairments related to spoken or written language.
Can I use Acapela’s TTS voices on various devices?
Yes, Acapela’s TTS voices can be used on different devices. For example, the Acapela TTS Engine is available as an extension for Chromebook devices running Chrome OS, allowing integration with any TTS-compatible application. Additionally, Acapela TTS voices can be installed on Android devices to use with system applications or other TTS-compatible apps.
How do I purchase and install Acapela TTS voices?
The Acapela TTS application is free to download, but you need to purchase at least one voice to use it offline with TTS-compatible applications. On Android, voices can be bought within the app, with prices starting at EUR 3.99 for standard voices and EUR 11.99 for premium children’s voices. For Chromebooks, you need to buy voices to integrate them into your system.
What is the role of Deep Neural Networks (DNNs) in Acapela’s TTS technology?
Acapela Group uses Deep Neural Networks (DNNs) to create voices using a limited amount of existing or new speech recordings. DNNs model complex non-linear relationships between input texts and their acoustic realizations, significantly improving the naturalness and expressiveness of the synthesized speech.
How does Acapela Group support users with technical issues?
Acapela Group provides support for users experiencing technical issues. Users can contact the support team via email, and the company often addresses and fixes bugs promptly, as indicated by user feedback and responses from the support staff.
Are Acapela’s TTS solutions suitable for business and professional use?
Yes, Acapela Group’s solutions are widely used in business and professional settings. They provide digital voice solutions that can be integrated into various applications and services, enhancing how companies access and communicate content and information.

Acapela Group - Conclusion and Recommendation
Final Assessment of Acapela Group
Acapela Group stands out as a leading provider in the Language Tools AI-driven product category, particularly in the text-to-speech (TTS) sector. Here’s a comprehensive overview of their offerings and who would benefit most from using their services.Key Features and Benefits
Multilingual Support
Acapela Group offers support for over 30 languages, including less common ones like Greek, Turkish, and Czech. This makes their services highly versatile and accessible to a broad user base.
Diverse Voice Options
The company provides a wide range of AI voices, including different accents, ages, and even emotional variants such as sad or happy tones. This diversity allows users to choose voices that best fit their needs.
Custom Voice Creation
One of the standout features is the ability to create a custom voice using the “my own voice” function. Although this is not available for all languages, it is a significant advantage for those who need personalized voices.
Accessibility and Education
Acapela Group has a strong presence in the education and accessibility markets. Their voices are integrated into Chromebooks, helping students with reading difficulties and enhancing learning experiences. They also support individuals with speech or language disorders through voice banking solutions.
Who Would Benefit Most
Educational Institutions
Schools and educational platforms can benefit greatly from Acapela Group’s TTS solutions, especially those using Chromebooks. The high-quality voices and multilingual support can enhance learning for students of all ages and proficiency levels.
Individuals with Disabilities
People suffering from degenerative diseases, speech or language disorders, and other conditions can significantly benefit from Acapela’s voice banking and personalized voice solutions.
Businesses and Content Creators
Companies and content creators looking to voice animate their content, produce high-quality voice recordings, or integrate TTS into their applications can leverage Acapela Group’s Virtual Speaker and other TTS tools.
Overall Recommendation
Acapela Group is highly recommended for anyone seeking advanced text-to-speech solutions. Their extensive language support, diverse voice options, and commitment to accessibility make them a leader in the industry. Here are some key points to consider:
Quality and Versatility
The high quality of their voices and the wide range of languages supported make Acapela Group a reliable choice for various applications.
Innovation
Their use of Neural TTS and ongoing innovations in voice technology ensure that users have access to the latest advancements in the field.
User-Friendly Solutions
Tools like Virtual Speaker offer a user-friendly interface, making it easy for users to produce high-quality voice recordings without the need for extensive technical expertise.
In summary, Acapela Group’s products are ideal for educational institutions, individuals with disabilities, and businesses looking to integrate high-quality text-to-speech solutions into their operations. Their commitment to innovation, accessibility, and user satisfaction makes them a top choice in the Language Tools AI-driven product category.