
Acapela Group - Detailed Review
Audio Tools

Acapela Group - Product Overview
Overview
Acapela Group is a leading European provider of speech and language technologies, specializing in AI-driven audio tools. Here’s a brief overview of their primary function, target audience, and key features:
Primary Function
Acapela Group focuses on creating and integrating natural-sounding voices and automated audio services. Their solutions include text-to-speech (TTS), voice recognition, and voice synthesis, which enable users to turn written text into speech files. This technology is used in various applications such as virtual assistants, smart toys, navigation systems, and accessibility tools like screen readers and talking book players.
Target Audience
Acapela Group’s products and services cater to a wide range of users, including businesses, developers, and individuals. Their solutions are particularly beneficial for companies looking to integrate voice technologies into their applications, as well as for individuals with disabilities who rely on accessibility tools. Additionally, their services are used by developers creating apps for Android and other platforms.
Key Features
Custom and Personalized Voices
Acapela Group offers the ability to create custom, natural-sounding voices adapted to specific needs and environments. These voices can be used in over 30 languages and can express emotions and moods.
Neural TTS
Their recent innovations in Deep Neural Networks (DNN) have opened up new opportunities for creating highly realistic and personalized digital voices. This technology enhances user engagement and overall user experience.
Integration and Development Tools
Acapela provides software development kits (SDKs) and high-level APIs, making it easy for developers to integrate speech synthesis into their applications with minimal code. For example, their Acapela TTS for Android is compatible with various Android versions and integrates seamlessly with the Android audio framework.
Accessibility Solutions
Their products are widely used in accessibility applications, such as screen readers, Braille displays, and talking book players, helping users with visual impairments or other disabilities.
Research and Development
Acapela Group is actively involved in R&D, partnering with experts worldwide to push the boundaries of voice technology. Projects include developing new languages, dialects, and voices with accents, as well as exploring areas like humanoid intelligent companions and multimodal man-machine interaction.
Overall, Acapela Group’s solutions are geared towards making communications easier, faster, and more efficient through advanced voice technologies.

Acapela Group - User Interface and Experience
User Interface of Acapela Group’s Audio Tools
The user interface of Acapela Group’s audio tools, particularly in their AI-driven products, is characterized by its user-friendly and intuitive design.
Ease of Use
The interface is designed to be straightforward and easy to use. For instance, the Virtual Speaker tool allows operators to produce voice files simply by providing the text and choosing a voice. This process is as simple as editing a text file and pressing the record button, eliminating the need for recording studio logistics.
User-Friendly Features
Acapela’s tools, such as Virtual Speaker, come with powerful yet easy-to-handle features. These include search and replace functions, color syntax, intuitive menus and buttons, and real-time highlighting of texts being synthesized. These features make the process of creating audio files efficient and manageable.
Predictive Typing and Real-Time Interaction
For users who need to communicate through text-to-speech, such as those using Proloquo4Text in conjunction with Acapela voices, the interface supports predictive typing. This makes communication faster, especially in situations where patience is limited. The system also allows for easy switching between languages and integrates seamlessly with devices like iPhones and iPads, which many users are already familiar with.
Customization and Adjustability
Users have the ability to adjust various voice settings, including speaking rate, voice tone, volume, and pause length for punctuation. This level of customization ensures that the synthesized voice can be tailored to meet specific needs and preferences.
Real-Time and 24/7 Availability
Acapela’s solutions are designed to operate 24/7, providing real-time information and support. This is particularly beneficial for applications such as IVR, CRM, and voice bots, where continuous availability is crucial.
Feedback and Support
Users have reported positive experiences with Acapela’s support team, describing them as friendly, professional, and responsive. This support is essential for ensuring that users can fully utilize the features of the tools without encountering significant hurdles.
Conclusion
In summary, Acapela Group’s audio tools offer a user interface that is intuitive, easy to use, and highly customizable. The focus on real-time interaction, predictive typing, and adjustable voice settings enhances the overall user experience, making it accessible and efficient for a wide range of users.

Acapela Group - Key Features and Functionality
Overview of Acapela Group’s Audio Tools
The Acapela Group’s audio tools, driven by AI, offer a range of impressive features and functionalities that make their text-to-speech (TTS) solutions highly versatile and effective. Here are the main features and how they work:
Diverse Voice Selection
Acapela provides a wide variety of voices, including both male and female options, across multiple languages. This diversity allows users to select voices that best fit their specific needs, whether it’s for customer service, entertainment, or other applications.
Customization Options
Users can adjust parameters such as pitch, speed, and volume to customize the voice according to their requirements. This level of customization enhances the overall user experience and allows for more personalized interactions.
Emotion and Expressiveness
The Acapela TTS engine supports expressive speech synthesis, enabling the generation of voices that convey emotions. This makes interactions feel more human-like and engaging, which is particularly beneficial in applications like voice bots and call bots.
Multilingual Support
Acapela’s TTS engine is capable of producing spoken audio in multiple languages, enhancing accessibility and making it suitable for a global audience. This feature is crucial for applications that need to cater to users speaking different languages.
Real-Time Streaming
The engine offers real-time audio output, allowing for immediate playback as the audio is generated. This feature is particularly useful for applications that require instant vocalization, such as live customer support or real-time narration.
Neural TTS Voices
Acapela’s neural digital voices, driven by VoiceAI, are integrated into all their SDKs (version 12) and are available across various platforms, including on-premises servers. These voices provide lifelike, realistic audio output, setting a new standard for natural interactions. They are especially beneficial for voice marketing strategies, reinforcing brand identity and delivering outstanding conversational experiences.
Personalized Synthetic Voices
The “my-own-voice 4” solution allows users to create high-quality personalized synthetic voices based on either existing recordings or the user’s own voice recordings. This is particularly useful for individuals with voice impairments due to conditions like ALS, aphasia, or apraxia, helping them maintain their personal identity through communication.
Acapela DNN Technology
Acapela DNN technology enables the creation of personalized voices using a limited amount of speech recordings. It extracts ‘Voice ID’ parameters to define the digital signature of the vocal tract and additional training to match the fine grain details of the voice, such as accents and speaking habits. This technology can work with just a few minutes of speech, making it highly efficient for voice replacement and developing new languages and voices.
Integration and Usage
Integrating the Acapela TTS Engine into applications is straightforward using their API. Users can send requests to the Acapela API and save the generated speech as audio files, such as MP3s. The API provides easy integration for real-time vocalization, making it simple to build speech-enabled applications.
Advanced Editor and Management
Acapela Cloud offers an advanced UX interface with prompt editing capabilities, dictionaries, and a personalized lexicon. The service includes a dashboard for easy management, with statistics and history, as well as a dispatching feature for teamwork. This ensures high security levels and 24/7 availability.
These features collectively make Acapela’s TTS solutions highly adaptable, expressive, and user-friendly, leveraging AI to create natural and engaging speech applications.

Acapela Group - Performance and Accuracy
The Acapela Group and Neural TTS Technology
The Acapela Group, a pioneer in text-to-speech (TTS) technology, has made significant strides in the performance and accuracy of their AI-driven audio tools, particularly with the introduction of their Neural TTS technology.Performance
Acapela’s Neural TTS, based on Deep Neural Networks (DNN) and machine learning, has significantly improved the quality and realism of their digital voices. This technology allows for the generation of highly engaging and lifelike voices, enhancing natural interactions and user experience. The system benefits from 20 years of voice portfolio development, which enriches the vocal databases and contributes to the high quality of the neural digital voices. Their neural digital voices are available in 15 languages and are ready for online testing, with the full portfolio set to be available in the coming months. This transition ensures continuity between technologies, allowing customers to use custom lexicons created on Acapela Cloud with the new Neural TTS voices without disruption.Accuracy
The accuracy of Acapela’s Neural TTS is enhanced by the advanced AI algorithms that learn quickly from the provided data. For instance, their “My Own Voice” platform can create a synthetic voice clone using just 3 minutes of recorded audio, preserving the unique tone, timbre, and personality of the individual’s voice. This is a significant improvement over other services that often require hours of reference audio. Acapela’s voices are also highly versatile, capable of delivering real-time, up-to-date information 24/7 in various applications such as CRM, IVR, contact centers, vocal assistants, and notification systems. These voices are designed to be pleasant, natural, and consistent, which helps in differentiating the customer experience and increasing satisfaction.Limitations and Areas for Improvement
While Acapela’s Neural TTS technology is advanced, there are a few areas to consider:Transition Period
Although the transition from unit selection TTS to Neural TTS is designed to be smooth, there might be a period where customers need to adjust to the new technology. Ensuring seamless integration and support during this transition is crucial.Customization and Specific Needs
While Acapela offers custom voice solutions, the process of creating these voices might still require specific recordings and adjustments. Ensuring that the customization process is as streamlined as possible can be an area for improvement.Accessibility and Inclusivity
While Acapela’s technology is advanced, ensuring that it is accessible and beneficial for all users, including those with disabilities, is important. For example, integrating features that support people with speech or hearing disabilities could further enhance the product’s inclusivity. Overall, Acapela Group’s Neural TTS technology marks a significant advancement in the field of text-to-speech, offering high-quality, realistic voices that enhance user engagement and customer satisfaction. However, ongoing improvements in areas such as transition support, customization, and accessibility can further enhance the product’s performance and accuracy.
Acapela Group - Pricing and Plans
Pricing Structure Overview
The pricing structure for Acapela Group’s AI-driven text-to-speech (TTS) products is outlined in several key areas, particularly focusing on their cloud services and specific product packages.Acapela Cloud
For the Acapela Cloud service, the pricing is structured to meet the needs of various business customers. Here are the key points:Dedicated Business Model
- Dedicated Business Model: Prices are set up for customers needing 24/7 real-time vocalization or the generation of voice prompts. However, specific pricing details are not publicly listed on the website, indicating that users need to contact Acapela Group for a customized quote.
My-Own-Voice and TTS Packages
For other TTS products, such as those under the “My-Own-Voice” category, the pricing is more detailed:Account Creation
- Account Creation: Free of charge.
Voice Evaluation
- Voice Evaluation: A 3-month free trial is available.
Packages
- Basic Package: This includes support for Windows (SAPI), Android (TTS extended API), or iOS (voice only available in compatible partner’s application). The cost is 99 EUR or USD per year, excluding VAT.
- Advanced Package: This includes support for all the above operating systems and additional features. The cost is 999 EUR or USD per year, excluding VAT.
Additional Features and Support
- Message Banking Support: Included in both the basic and advanced packages.
- Basic Support: Included in both packages.
- Additional Subscriptions: For additional OS delivery or support, or for additional voice formats, these are quoted on a case-by-case basis.
Free Options
- Type & Talk Demo: Acapela Group offers a free online demo where users can test their voices with their own input and listen to the audio result in real-time. This demo is free and allows users to experience the TTS technology before committing to a purchase.

Acapela Group - Integration and Compatibility
Platform Compatibility
Acapela’s text-to-speech (TTS) solutions are compatible with a broad range of operating systems and devices. For instance:- Windows: Their TTS technology integrates seamlessly with Windows-based applications, particularly those compatible with the Speech Application Programming Interface (SAPI).
- iOS: Acapela voices can be used as system voices on iOS devices, especially with applications like Grid for iPad, as of iOS 16 or higher.
- Android: The Acapela Voices Server (AVS) supports Android-based applications that use the Text-to-Speech Extended interface, such as Talk Tablet Android and NovaChat devices.
- Linux Embedded: Acapela TTS for Linux Embedded allows developers to integrate TTS into any Linux Embedded device or application, supporting ARM, MIPS, and x86 architectures.
Application Compatibility
Acapela’s voices are compatible with a variety of applications and devices, including:- Grid 3: My Own Voice is compatible with Grid 3 for Windows devices and Grid for iPad, enabling users to create and use their own voices within these platforms.
- Accessibility Tools: Their voices are used in various accessibility applications, such as Mind Express 4, I-Series and I-Series by Tobii Dynavox, and devices by Saltillo.
- IVR and Public Announcements: The Virtual Speaker solution is suitable for IVR systems, e-learning, public announcements, and passenger information systems.
Integration with Development Tools
Acapela provides software development kits (SDKs) that make it easy for developers to integrate their TTS technology into different applications:- SDKs for Various Platforms: Their SDKs support integration into embedded platforms, desktop applications, cloud services, and on-premises servers, ensuring real-time vocalization across different environments.
- Simple API: The API for Linux Embedded devices is simple and similar to the one for Windows Mobile, facilitating easy integration of text-to-speech voices.
Custom and Standard Voices
Acapela offers a wide range of standard and custom voices, which can be adjusted to fit specific needs:- Voice Properties: Users can adjust voice settings such as speaking rate, voice tone, volume, and pause length for punctuation, ensuring the voices are natural and pleasant.
- Custom Voices: With My Own Voice, users can create their own custom voices, which can be tested and verified before purchase, and then used in various applications.

Acapela Group - Customer Support and Resources
Acapela Group Customer Support
Acapela Group offers several customer support options and additional resources to support their AI-driven audio tools, ensuring users can effectively utilize their products.Contact and Support
For any inquiries or project-specific needs, Acapela Group provides an online contact form where you can describe your project and receive guidance from a dedicated contact. This form allows you to provide background information about your project, including application field, OS, languages, and other relevant details, ensuring you get the right advice quickly.Customer Interaction and Voice Solutions
Acapela Group specializes in digital voices for various applications such as CRM, IVR, contact centers, vocal assistants, and voicebots. They offer a wide range of languages (over 30) and voices (120 in their standard portfolio), including the option to create custom voices for exclusive use by a company or brand. This customization helps in maintaining brand identity and differentiating services.Voice Banking and Personalized Voices
The ‘My-own-voice’ service allows users to preserve and use their own synthetic voice, which is particularly beneficial for individuals with speech disorders. This service supports up to 16 languages and ensures the synthetic voice retains the original timbre, accent, and intonation. Users have praised the realistic quality of these voices and the supportive team at Acapela Group.Acapela Cloud
Acapela Cloud is an online service that enables users to generate voice prompts using AI voice technology. It features a user-friendly web interface with advanced UX and prompt editing capabilities. This service is fast, secure, and compliant with the latest W3C standards. Users can easily manage their projects, generate neural voice prompts, and access their files by project. The service also allows for fine-tuning the audio results, enhancing user engagement and overall user experience.Additional Resources
Documentation and Guides
While specific detailed guides are not explicitly mentioned, the website provides comprehensive information on their services and technologies, such as neural TTS technology and client-server architecture, which can help users in implementing and managing their voice-enabled projects.Customer Testimonials
The website includes testimonials from satisfied customers who have used Acapela Group’s services, providing real-world examples of how these solutions have been beneficial. By reaching out through the contact form or exploring the detailed information on their website, users can get the support and resources they need to effectively use Acapela Group’s AI-driven audio tools.
Acapela Group - Pros and Cons
Advantages
Versatility in Languages and Voices
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, and French. This makes it highly versatile for various global applications.
Customization Options
Users can choose from several different voices, accents, and even ages, allowing for a personalized experience. The “my own voice” function enables users to create a custom voice, although this feature is not available for all languages yet.
Multi-Platform Compatibility
The service is available on multiple platforms, including PC, iPhone, and iPad, making it accessible across different devices.
Natural-Sounding Voices
Acapela Group uses advanced technologies like Neural TTS and DNN innovations to create voices that sound as natural as a real person reading aloud. This enhances the overall listening experience.
Wide Range of Applications
The service can be integrated into various applications, devices, and services that require text-to-speech functionality, making it a valuable tool for different industries and use cases.
Disadvantages
Additional Costs for Voices
While the service offers a range of voices, not all voices are available from the start, and users may need to pay for additional voices to use them.
Language Limitations for Custom Voices
The “my own voice” function, which allows for custom voice creation, does not support all languages, which might be a limitation for some users.
By weighing these pros and cons, you can make an informed decision about whether Acapela Group’s audio tools meet your specific needs and requirements.

Acapela Group - Comparison with Competitors
When Comparing Acapela Group with Other AI-Driven Text-to-Speech Products
Unique Features of Acapela Group
- Language Support: Acapela Group supports a wide range of languages, including less common ones such as Greek, Turkish, Czech, and Portuguese, in addition to the more popular languages like English, Spanish, French, and German.
- Voice Customization: The platform offers a variety of voices, accents, and ages to choose from. It also features a “my own voice” function, which allows users to create a custom voice, although this is not available for all languages.
- Versatility: Acapela Group’s TTS can be used on multiple platforms, including PC, iPhone, iPad, and other devices. The company’s focus is on providing a personalized experience with full customization options.
Alternatives and Competitors
Amazon Polly
- Advanced Technology: Amazon Polly uses deep learning technology to synthesize natural-sounding human voices. It offers both Standard TTS and Neural Text-to-Speech (NTTS) voices, with speaking styles such as Newscaster and Conversational.
- Global Reach: Polly supports dozens of realistic voices across many languages, making it suitable for global applications.
- Integration: It is highly integrable into various applications, including those requiring different delivery styles.
Speechify
- Quality and Performance: Speechify is noted for its high-quality voices that sound very realistic. It supports numerous languages and allows for voice and accent customization. It is also completely free with a premium version offering additional features.
- User-Friendly: Speechify is known for its ease of use and high-quality output, making it a strong competitor in terms of performance.
Tuxpin
- Web Article Conversion: Tuxpin uses AI TTS to convert web articles into audio, allowing users to listen through their podcast players. It is available as both iOS and Android apps.
- Simplicity: It offers a straightforward way to listen to web content, making it a convenient alternative for those who prefer audio over text.
AiVOOV
- User-Friendly Interface: AiVOOV is designed for non-technical users and offers features like text-to-speech, audio-to-text, and project management. It supports multiple languages and allows for translating text into different languages.
- Additional Features: It includes features such as generating SRT files, merging audio files, and background voice with fade-out and loop options.
Key Differences
- Customization: While Acapela Group excels in voice customization and the “my own voice” feature, Amazon Polly stands out with its advanced deep learning technology and specific speaking styles.
- Integration: Amazon Polly is highly integrable into various applications, whereas Speechify is known for its ease of use and high-quality voices.
- Platform Specificity: Tuxpin is specialized in converting web articles to audio, making it a niche but useful alternative for specific use cases.
In summary, Acapela Group’s strength lies in its versatility, language support, and customization options. However, depending on the specific needs, alternatives like Amazon Polly, Speechify, Tuxpin, and AiVOOV offer unique features that might be more suitable for different applications.

Acapela Group - Frequently Asked Questions
Frequently Asked Questions about Acapela Group
What is Acapela Group and what do they specialize in?
Acapela Group is a European leader in voice solutions, with over 30 years of expertise in the field. They specialize in creating digital voices using advanced technologies such as Neural Text-to-Speech (TTS) and deep neural networks (DNN). Their solutions are used in various applications, including voice branding, assistive technologies, and interactive voice services.
What is Text-to-Speech (TTS) and how does it work?
Text-to-Speech is the artificial production of human speech by a computer system. Acapela Group’s TTS technology transforms any text into speech in real time, using natural and expressive voices. This is achieved through deep neural networks that learn the relationship between input texts and their acoustic realizations by different speakers.
What types of voices does Acapela Group offer?
Acapela Group offers a wide range of voices, including over 100 voices in more than 30 languages. Their portfolio includes adult and children’s voices, as well as emotive versions that can convey different moods or perspectives. They also have voices specifically designed for various age groups and preferences.
How can individuals purchase and use Acapela voices?
While Acapela Group mainly sells its solutions for business and professional use, individuals can also purchase voices for personal use. For example, voices can be bought for use with TextAloud and other compatible applications. However, for commercial use, it is necessary to contact the support team for the appropriate licensing.
What are the key qualities of Acapela’s speech synthesis system?
The most important qualities of Acapela’s speech synthesis system are naturalness, intelligibility, and expressiveness. Their voices are designed to sound smooth and natural, with automatic intonation that reflects the meaning of the text, including pauses, breath groups, punctuation, and context.
How do Acapela voices support individuals with disabilities?
Acapela voices are used in Augmentative and Alternative Communication (AAC) solutions to help users with impairments or restrictions related to spoken or written language. These voices also assist people with dyslexia and cognitive impairments by providing speech support for daily tasks, education, work, and recreational activities.
Can I use Acapela voices on different devices?
Yes, Acapela voices can be used on various devices. For instance, they offer a TTS engine extension for Chromebook devices running Chrome OS, which allows users to integrate voices into TTS-compatible applications like ChromeVox.
What is the difference between standard and emotive voices?
Standard voices provide a natural and clear speech output, while emotive voices include multiple variations for different moods or perspectives. These emotive voices can be purchased separately and are designed to convey a range of emotions, making the interaction more engaging and realistic.
How do I choose the right voice for my needs?
Acapela Group provides an interactive demo on their website where you can hear samples of different voices and try out your own text with various voices. This helps you choose the voice that best fits your application or personal preference.
What kind of support does Acapela Group offer?
Acapela Group offers comprehensive support to help users find the right solution for their voice-enabled projects. They have a dedicated team and resources available to guide users through the process of selecting and implementing the appropriate voice solutions.
