
Acapela Group - Detailed Review
Speech Tools

Acapela Group - Product Overview
Overview
Acapela Group is a leading provider of speech and language technologies, specializing in AI-driven speech tools. Here’s a brief overview of their primary function, target audience, and key features:Primary Function
Acapela Group focuses on developing and providing advanced text-to-speech (TTS) solutions, voice synthesis, and voice recognition technologies. Their tools enable the creation of natural-sounding voices for various applications, including virtual assistants, automated audio services, and custom-made voices for different devices and services.Target Audience
The target audience for Acapela Group’s products includes businesses and individuals looking to integrate high-quality voice solutions into their applications. This can range from companies needing customer service automation to individuals seeking assistive technologies to preserve and use their own voices.Key Features
Diverse Voice Selection
Acapela offers a wide variety of voices, including male and female options, across multiple languages. This allows for diverse and engaging user experiences.Customization Options
Users can adjust parameters such as pitch, speed, and volume to create voices that fit their specific requirements, enhancing the overall user experience.Emotion and Expressiveness
The TTS engine supports expressive speech synthesis, enabling the generation of voices that convey emotions, making interactions feel more human-like.Multilingual Support
The voices can speak or read content in over 30 languages, with the ability to switch between languages easily.Voice Banking
Acapela’s ‘My-own-voice’ service allows users to record and capture the essence of their own voice, creating a synthetic version that maintains the original voice’s timbre, accent, and intonation. This is particularly useful for individuals who may lose their voice due to medical conditions.Integration and Usage
The Acapela TTS Engine is easy to integrate into applications using their API, allowing developers to generate lifelike spoken audio with real-time streaming capabilities.Research and Development
Acapela Group is actively involved in research projects, such as Deep Neural Networks (DNN), to push the boundaries of voice technologies, including humanoid intelligent companions, multilingual conversations, and biometrics. Overall, Acapela Group’s solutions are geared towards making communications easier, faster, and more efficient, with a strong focus on natural-sounding voices and advanced customization options.
Acapela Group - User Interface and Experience
User Interface
Acapela Group’s TTS tools, such as those available through Acapela Cloud, feature a straightforward and intuitive web interface. This interface allows users to easily manage their projects and generate voice prompts in the language and voice of their choice. The web interface is equipped with advanced UX elements, making it simple to integrate the API and edit prompts.
Ease of Use
The system is relatively easy to use, even for those without extensive technical knowledge. For instance, connecting to the Acapela Cloud server requires only a few lines of code, and generating voice files is as simple as a click. This ease of use is further enhanced by the availability of settings to fine-tune the audio results, ensuring that users can quickly adjust the output to their needs.
Overall User Experience
Users have reported a positive experience with Acapela Group’s products. For example, individuals who have used the “My-own-voice” feature, which allows users to create a synthetic voice that mimics their own, have found the process to be highly satisfactory. The voices generated are highly realistic, maintaining the essence of the original voice in terms of timbre, accent, and intonation. This feature has been particularly beneficial for users who have lost their ability to speak due to medical conditions, as it helps them retain their identity through their voice.
Customization and Accessibility
The interface supports multiple languages and offers a variety of voices, accents, and ages to choose from. This customization allows users to select the most suitable voice for their needs. Additionally, the integration with devices such as iPhones and iPads, and the ability to connect to portable speakers via Bluetooth, makes the system accessible and versatile.
Feedback and Support
Acapela Group is known for its supportive team, which provides excellent customer service. Users have praised the company for its friendly, professional, and problem-solving approach, ensuring that any questions or issues are addressed promptly.
Conclusion
In summary, Acapela Group’s speech tools offer a user-friendly interface that is easy to use, highly customizable, and supported by a responsive and helpful team, making the overall user experience highly positive and engaging.

Acapela Group - Key Features and Functionality
Acapela Group Overview
Acapela Group, a leading provider of voice solutions, offers a range of advanced features and functionalities in their AI-driven speech tools, particularly through their text-to-speech (TTS) technology.Multi-Language Support
Acapela Group’s TTS app supports a wide array 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 the tool versatile and accessible to a global user base.Diverse Voice Options
The app offers a variety of AI voices, including different accents and ages. Users can choose from a range of pre-existing voices, and some voices may require additional payment to access. This diversity in voice options allows users to select the most suitable voice for their specific needs.Custom Voice Creation
One of the standout features is the “my own voice” function, which enables users to create a custom voice using their own speech recordings. This is achieved through Acapela’s Deep Neural Networks (DNN) technology. Although this feature is not available for all languages, the company is continually adding support for more languages.Neural TTS Technology
Acapela Group’s Neural TTS technology, driven by DNN and machine learning, generates highly natural and expressive speech. This technology learns from large datasets of speech resources to model the complex patterns in human speech, such as intonation, rhythm, and emphasis. This results in lifelike, realistic audio output that enhances user interactions.Platform Compatibility
The TTS voices are integrated into various platforms, including embedded systems, desktops, cloud services, and now on-premises servers. This wide range of platform support ensures that the voices can be used in different environments and applications, from tiny toys to server farms and AI systems.Voice AI and Real-Time Integration
Acapela’s neural digital voices are seamlessly integrated into their SDKs, providing real-time vocalization. This integration benefits applications such as voice bots and call bots, enhancing the customer journey by delivering natural and engaging interactions.Custom and Branded Voices
The partnership with Houndify and other technologies allows companies to develop customized, branded voices. This feature is particularly useful for voice marketing strategies, as it enables the creation of voices that reinforce brand identity and improve customer satisfaction and trust.Offline and Online Capabilities
Acapela’s technology can be used both offline and online. The offline capability, especially with on-premises servers, ensures that the TTS voices can function without internet connectivity, making them suitable for a variety of use cases.Continuous Improvement
Acapela Group continuously updates and expands its voice portfolio. The transition to Neural TTS technology ensures continuity with existing custom lexicons and voices, allowing customers to capitalize on their previous work without disruption.Conclusion
These features collectively make Acapela Group’s speech tools highly versatile, natural-sounding, and adaptable to various applications, enhancing the overall user experience.
Acapela Group - Performance and Accuracy
Evaluating the Performance and Accuracy of Acapela Group’s Speech Tools
Performance and Accuracy
Acapela Group has made significant strides in the field of text-to-speech (TTS) technology, particularly with their Deep Neural Networks (DNN) approach. Here are some highlights:Naturalness and Intelligibility
Acapela’s TTS solutions are known for their natural and intelligible speech output. The use of DNNs allows for the creation of voices that are very close to the original, capturing the essence of the user’s timbre, accent, and intonation.Voice Banking
The “my-own-voice” service is a standout feature, enabling individuals, especially those with speech impairments due to conditions like ALS, to create a digital version of their own voice using just a few minutes of speech recordings. This technology ensures that the synthetic voice is highly recognizable and maintains the user’s identity.Multi-Language Support
Acapela Group supports a wide range of languages, including less common ones like Greek, Turkish, and Czech, in addition to the more popular languages. This versatility makes their solutions accessible to a broader audience.Engagement and User Experience
User-Friendly Interfaces
Users have reported positive experiences with the user-friendly interfaces provided by Acapela Group. For example, Peter, a user with ALS, found the combination of Acapela and Proloquo4Text to be highly effective and easy to use, even allowing for predictive typing to speed up communication.Integration with Devices
The solutions are compatible with various devices, including iPhones and iPads, and can be connected to portable speakers via Bluetooth for louder output when needed.Limitations and Areas for Improvement
Language Limitations for Custom Voices
While the “my-own-voice” function is impressive, it does not support all languages. However, the company is continually adding new languages to this feature.Cost and Additional Voices
Some users may need to pay for additional voices or features, which could be a limitation for those on a budget. Although the core service is reasonably priced, extra features may incur additional costs.Comparative Quality
While Acapela Group’s TTS is highly regarded, some comparisons suggest that other services, like Speechify, may offer slightly better sound quality and realism in certain contexts. However, Acapela’s versatility and customization options remain strong points.Conclusion
Acapela Group’s speech tools, particularly those leveraging DNN technology, demonstrate high performance and accuracy. The ability to create highly realistic and personalized voices, along with user-friendly interfaces and multi-language support, makes their solutions highly valuable. However, there are areas for improvement, such as expanding the language support for custom voices and potentially enhancing the sound quality to match or exceed other leading TTS services. Overall, Acapela Group’s commitment to innovation and user satisfaction is evident in their products.
Acapela Group - Pricing and Plans
The Pricing Structure of Acapela Group
The pricing structure of Acapela Group for their AI-driven speech tools is structured into several plans, each with distinct features and pricing models.
Account Creation and Voice Evaluation
- Creating an account with Acapela Group is free of charge.
- There is a 3-month free trial for voice evaluation, allowing users to test the voices before committing to a purchase.
Pricing Plans
Yearly Subscription
- This plan costs 99 EUR or USD per year, excluding VAT.
- It includes support for Windows (SAPI), Android (TTS extended API), and iOS packages, although the iOS voices are only available within compatible partner applications.
- Basic support is included in this plan.
- There is an option for an additional subscription for additional OS delivery/support, which is quoted on a case-by-case basis.
One-Time License Fee
- This plan costs 999 EUR or USD, excluding VAT.
- It offers the same support as the yearly subscription for Windows, Android, and iOS.
- Basic support is also included.
- Similar to the yearly subscription, there is an option for additional voice formats or OS delivery/support, which is quoted on a case-by-case basis.
Additional Features
- Message Banking Support: Both plans include message banking support, which allows users to store and reuse pre-recorded messages.
- Custom Voices: Acapela Group offers a “my own voice” feature, where users can create a custom voice, although this feature does not support all languages.
In-App Purchases (For Android)
- For Android users, the Acapela TTS app is free to download, but users need to purchase voices to use them offline.
- The cost for standard voices is EUR 3.99 each, and EUR 11.99 for kids’ premium voices.
Summary
In summary, Acapela Group provides flexible pricing options, including a yearly subscription and a one-time license fee, along with free trials and in-app purchases for specific platforms. This allows users to choose the plan that best fits their needs and budget.

Acapela Group - Integration and Compatibility
Platform Compatibility
Windows Server
Acapela TTS for Windows Server is a software development toolkit that integrates seamlessly with telephony and server-based services on Windows Server. It supports client-server architectures, is scalable, and optimized for mono and multi-processor systems.
Android
The Acapela TTS for Android is a software development kit (SDK) that allows developers to add voice capabilities to any Android application. It is compatible with Android versions from 8 to the latest and includes a Java library with native libraries.
iOS
Acapela Voices Server (AVS) is compatible with iOS-based applications that use the system voices installed on the device.
Mac and Linux
Acapela TTS solutions are also available for Mac and Linux, providing a wide range of multilingual TTS and Automatic Speech Recognition (ASR) solutions.
Integration with Other Tools
Genesys Cloud
The Acapela Voice integration can be activated and configured within Genesys Cloud. This involves installing the Acapela Voice as a Service (VaaS) integration, entering the application name, and adding the necessary credentials. This integration allows for the use of Acapela’s TTS engine within the Genesys Cloud platform.
Voice XML Platforms
Acapela TTS for Windows Server can be used as a TTS resource in any Voice XML platform with the IETF MRCP v2 protocol layer and the support of W3C SSML.
Accessibility Devices
Acapela TTS solutions are integrated with various accessibility devices such as those from Tobii Dynavox, Jabbla, Saltillo, and Google Creative Lab. These include devices like NovaChat, ChatFusion, and Look to Speak.
Developer Benefits
High-Level API
For Android developers, the High-Level API written in Java enables quick and easy integration of speech synthesis into applications with minimal code lines.
Scalability and Performance
The solutions are designed to be scalable and offer high-density performance, making them suitable for both single host solutions and distributed architectures.
Market Applications
Contact Centers, IVR, CRM
Acapela TTS solutions are used in various market applications such as contact centers, Interactive Voice Response (IVR) systems, Customer Relationship Management (CRM) systems, and notification systems.
Navigation, Smart Toys, Virtual Assistants
On Android, these solutions are used in navigation, smart toys, virtual assistants, and other applications that require real-time vocal information.
Overall, Acapela Group’s TTS solutions are highly versatile and compatible with a wide range of platforms and devices, making them a valuable tool for various applications across different industries.

Acapela Group - Customer Support and Resources
Customer Support Options
Acapela Group offers a range of customer support options and additional resources to support users of their speech tools and AI-driven products.User-Friendly Interfaces and Documentation
Acapela Group provides easy-to-integrate APIs and user-friendly web interfaces with advanced UX, making it simpler for developers to build speech-enabled applications. The interfaces are designed to be intuitive, allowing users to manage their projects and generate voice prompts with ease.Comprehensive Support
The company offers dedicated support for its Cloud customers, ensuring 24/7 real-time vocalization and the ability to generate voice prompts effortlessly. This support is backed by a team that is enthusiastic and committed to innovation, ensuring that users get the help they need promptly.Multiple Platforms and Engines
Acapela Group’s voice solutions are available on various platforms, including Windows, Mac OSX, iOS, Android, Linux, and ChromeOS (Chromebooks). This versatility ensures that developers can implement voice solutions across different operating systems, both online and offline.Custom and Personalized Voices
For users needing custom voices, Acapela Group offers the ability to create exclusive voices for companies or brands. This includes voice banking services like ‘my-own-voice,’ which allows individuals to preserve their own voice for future use, especially beneficial for those with conditions that may lead to speech loss.Educational Resources
In the education sector, Acapela Group provides resources that support learning, language learning, and assist students with learning difficulties. Their digital voices help create an engaging environment where children can learn more effectively, with features like immediate audio feedback and realistic speech feedback.Voice AI and Neural TTS Technology
Acapela Group is at the forefront of Voice AI, using neural text-to-speech technology to create highly realistic voices. This technology enables the quick creation of AI-based voices adapted to specific requirements, enhancing user engagement and overall user experience.Contact and Community
Users can contact Acapela Group directly through their website for more information or to discuss their specific needs. The company is also a member of Communication Matters, indicating their involvement in a broader community focused on communication solutions.Conclusion
By providing these resources and support options, Acapela Group ensures that users have the tools and assistance they need to effectively integrate and utilize their speech tools and AI-driven products.
Acapela Group - Pros and Cons
Advantages of Acapela Group’s Speech Tools
Acapela Group’s speech tools, particularly their “My-Own-Voice” service, offer several significant advantages:Personalized Voice
Advanced Technology
Multi-Language Support
Customization and Flexibility
Integration with Assistive Devices
Cost and Funding Support
User-Friendly Interface
Disadvantages of Acapela Group’s Speech Tools
Despite the numerous advantages, there are some limitations and drawbacks to consider:Synthetic Quality
Pronunciation of Names and Places
Initial Recording Requirements
Limited Emotional Expression

Acapela Group - Comparison with Competitors
Unique Features of Acapela Group
Personalized Synthetic Voices
Acapela Group’s “my-own-voice” solution is particularly noteworthy for individuals with voice impairments, such as those with ALS, aphasia, or apraxia. This service allows users to create a personalized synthetic voice using either existing recordings (message banking) or their own voice recordings (voice banking), which is crucial for maintaining personal identity.
Neural TTS Technology
Acapela Group utilizes Deep Neural Networks (DNN) for its Neural TTS technology, which significantly improves the quality and naturalness of the synthetic voices. This technology allows for more realistic and engaging voices compared to traditional unit selection text-to-speech methods.
User-Friendly Interface and Reduced Recording Effort
The latest version of “my-own-voice” requires only 50 sentences to create a digital voice, a significant reduction from the previous 350 sentences. This makes the process quicker and less tiresome for users.
Potential Alternatives
Amazon Polly
Amazon Polly offers a wide range of realistic voices and languages, using advanced deep learning technology. It includes Neural Text-to-Speech (NTTS) voices with different speaking styles, such as Newscaster and Conversational. This makes it a strong alternative for applications requiring diverse voice options and high-quality speech synthesis.
Azure AI Speech
Microsoft’s Azure AI Speech provides comprehensive speech capabilities, including text-to-speech, speech-to-text, and speaker recognition. It allows for custom voice creation, supports over 215 voices and 60 languages, and can be run both in the cloud and at the edge. This makes it a versatile option for various applications.
Cepstral
Cepstral focuses solely on text-to-speech and offers high-quality, natural-sounding voices. Their technology is easy to integrate and requires minimal computing resources, making it suitable for a variety of devices and applications. Cepstral also offers domain-specific voices, which can be customized for specific use cases.
Speechimo
Speechimo is geared towards content creators, educators, and marketers, offering a user-friendly interface and high-quality voiceovers in multiple languages. It is known for producing emotionally resonant and impactful audio, which can be particularly useful for storytelling and educational content.
Key Differences
Customization and Personalization
Acapela Group’s “my-own-voice” stands out for its ability to create highly personalized voices, which is essential for individuals who want to maintain their unique voice identity. In contrast, while other services like Amazon Polly and Azure AI Speech offer customization options, they are more geared towards general applications rather than personal voice preservation.
Technology and Voice Quality
Acapela’s use of Neural TTS technology sets it apart in terms of voice quality and realism. However, competitors like Amazon Polly and Azure AI Speech also employ advanced technologies, such as NTTS and machine learning, to achieve high-quality speech synthesis.
User Interface and Ease of Use
The simplified recording process and improved user interface of Acapela’s “my-own-voice” make it more accessible for users with specific needs. Other services, like Speechimo and Cepstral, also offer user-friendly interfaces but are more broadly focused on general text-to-speech applications.
In summary, while Acapela Group’s solutions are highly specialized and beneficial for creating personalized synthetic voices, other alternatives offer a broader range of features and applications, making them suitable for different use cases and user needs.

Acapela Group - Frequently Asked Questions
Here are some frequently asked questions about Acapela Group’s speech tools and detailed responses to each:
What is Acapela Group and what services do they offer?
Acapela Group is a European leader in voice solutions, specializing in speech and language technologies. They offer a wide range of services, including text-to-speech (TTS), voice recognition, and voice synthesis, to help businesses and individuals create virtual assistants, automated audio services, and custom-made, natural-sounding voices.
What languages does Acapela Group’s text-to-speech service support?
Acapela Group’s TTS service supports multiple languages, including popular ones like English, Spanish, French, and German, as well as less common languages such as Greek, Turkish, Czech, and Portuguese. They continue to add support for new languages.
Can I create a custom voice with Acapela Group’s services?
Yes, Acapela Group offers a “my own voice” function that allows you to create a custom voice using a limited amount of existing or new speech recordings. This feature is part of their Deep Neural Networks (DNN) technology, although it may not support all languages currently.
How does Acapela Group’s Deep Neural Networks (DNN) technology work?
Acapela Group uses DNNs to create voices by learning the relationship between input texts and their acoustic realizations. These neural networks can model complex non-linear relationships, enabling the generation of highly realistic and natural-sounding voices from a limited amount of speech recordings.
What are the key features of the Acapela TTS Engine?
The Acapela TTS Engine offers a diverse selection of voices, including male and female options across multiple languages. It also provides customization options such as adjusting pitch, speed, and volume. Additionally, the engine supports expressive speech synthesis, allowing voices to convey emotions and make interactions feel more human-like.
How easy is it to integrate the Acapela TTS Engine into my application?
Integrating the Acapela TTS Engine is straightforward. You can use their API with just a few lines of code to connect to the Acapela Cloud server and generate speech output. The process involves sending a request to the API and saving the generated speech as an audio file.
What is Acapela Cloud, and what benefits does it offer?
Acapela Cloud is an online service that allows you to easily build speech-enabled applications. It features an easy-to-integrate API, a web interface with advanced UX, and prompt editing capabilities. The service is fast, secure, and compliant with the latest W3C standards, making it easy to generate voice prompts in the language and voice of your choice.
How does Acapela Group’s technology help individuals with disabilities?
Acapela Group’s voice solutions, including their TTS and AAC (Augmentative and Alternative Communication) solutions, help individuals with visual impairments, dyslexia, and cognitive impairments. These solutions enable users to access written information, communicate more effectively, and perform daily tasks with greater autonomy and self-confidence.
Are the voices generated by Acapela Group’s TTS engine natural-sounding?
Yes, the voices generated by Acapela Group’s TTS engine are highly realistic and natural-sounding. This is achieved through their neural TTS technology, which ensures that the automatic intonation reflects the meaning of the text, including pauses, breath groups, punctuation, and context.
Do I need to inform users that the TTS voice is AI-generated?
Yes, it is crucial to inform users that the TTS voice is AI-generated to maintain transparency and trust with your audience. This is part of the usage policies for the Acapela TTS Engine.
How can I get started with Acapela Group’s services?
To get started, you can visit the Acapela Group website and use the ‘find your solution’ module to identify the best service for your needs. You can also register for their Acapela Cloud service, which provides a user-friendly interface to manage your projects and generate voice prompts.

Acapela Group - Conclusion and Recommendation
Acapela Group: A Leader in AI-Driven Speech Tools
Acapela Group stands out as a leader in the AI-driven speech tools category, particularly in the area of text-to-speech (TTS) solutions. Here’s a final assessment of their offerings and who would benefit most from using their products:
Versatility and Language Support
Acapela Group’s TTS app supports a wide range of languages, including less common ones like Greek, Turkish, and Czech, in addition to the more popular languages such as English, Spanish, French, and German. This versatility makes their products accessible to a diverse user base.
Custom and Personalized Voices
One of the standout features of Acapela Group is the ability to create custom and personalized voices. Their “my own voice” function allows users to preserve and use their own voice synthetically, which is particularly beneficial for individuals with speech or language disorders, or those suffering from degenerative diseases like ALS. This feature maintains the user’s identity by capturing the essence of their original voice, including timbre, accent, and intonation.
Voice Banking
Acapela Group’s voice banking solution is especially valuable for individuals who may lose their ability to speak due to illness. This technology allows users to record and preserve their voice, which can then be used with assistive devices. This has been a lifesaver for many, as it helps maintain their personal identity and communication abilities.
Brand Voice Creation
For businesses, Acapela Group’s Voice Factory offers a solution for creating custom digital voices that align with their brand identity. This enhances user engagement and customer satisfaction by providing a consistent and recognizable voice across all audio touch points.
Health and Accessibility
Acapela Group is committed to supporting individuals with speech or language disorders. Their solutions are already benefiting over 3,000 users worldwide, and they aim to reach 10,000 users by 2024 through collaborations with health associations and partners.
Technical Excellence
Acapela Group’s use of neural TTS technology, specifically their Acapela DNN, allows for highly realistic voice generation. This technology can work with a limited amount of speech recordings, making it feasible even for patients with limited speech capabilities.
User Experience
Users have reported a highly positive experience with Acapela Group’s products, highlighting the natural and pleasant digital voices, ease of use, and the company’s supportive and professional team.
Recommendation
Acapela Group’s products are highly recommended for:
- Individuals with speech or language disorders: The voice banking and custom voice creation features are invaluable for maintaining personal identity and communication.
- Businesses looking to enhance brand identity: Custom digital voices can significantly improve user engagement and customer satisfaction.
- Healthcare providers and organizations: Collaborations with Acapela Group can provide essential communication solutions for patients with degenerative diseases.
Overall, Acapela Group’s innovative approach to TTS, combined with their commitment to accessibility and customer support, makes their products a top choice in the AI-driven speech tools category.