AI Speech Data Services

High-Quality Speech Data for Artificial Intelligence

Speech data collection, recording and dataset production for training Artificial Intelligence models, Virtual Assistants, Contact Centers, Automatic Speech Recognition (ASR) and Text-to-Speech (TTS) systems.
Artificial Intelligence is transforming the way businesses communicate, automate processes and interact with their customers. Virtual assistants, conversational AI, automatic speech recognition systems, Text-to-Speech platforms and Large Language Models all rely on one essential element: high-quality speech data.
At Voices & Media Solutions, we help companies, research centres, technology providers and international organisations develop AI-powered solutions through the production of high-quality AI Speech Data.
With more than 20 years of experience in professional voice production, combined with a specialised team dedicated to speech data projects, we provide a complete range of AI Speech Data services, including Speech Data Collection, Speech Recording for Artificial Intelligence, Custom Speech Datasets, Multilingual Speech Data and AI Data Consulting.
Whether you are developing a virtual assistant, a voice agent, an automatic speech recognition system or a conversational AI platform, we deliver speech datasets tailored to the specific requirements of your project.

What Are AI Speech Data Services?

AI Speech Data Services encompass all the services required to create, organise and prepare speech data used to develop and train Artificial Intelligence systems.
Unlike a standard audio recording, an AI Speech Data project involves a carefully planned workflow designed to ensure that the final datasets meet strict technical, linguistic and functional requirements.
These datasets are used to train a wide range of voice-enabled technologies, including:

• Automatic Speech Recognition (ASR)
• Text-to-Speech (TTS)
• Virtual Assistants
• Voice Agents
• Conversational AI
• Intelligent Contact Centers
• IVR Systems
• Large Language Models (LLMs)
• Voice Biometrics
• Mobile Applications
• Smart Devices
• Accessibility Solutions
• Automotive Voice Systems

As Artificial Intelligence continues to evolve, the demand for more diverse, natural and representative speech datasets continues to grow.

Why Is Speech Data So Important for Artificial Intelligence?

The performance of any Artificial Intelligence system depends directly on the quality of the data used to train it.
Even the most advanced AI models deliver limited results when trained using inconsistent, poorly representative or technically inadequate speech recordings.
High-quality speech datasets enable AI models to:

• understand different accents and language variants;
• recognise different speaking speeds and communication styles;
• identify user intent more accurately;
• improve Automatic Speech Recognition performance;
• generate more natural synthetic voices;
• reduce bias within AI models;
• enhance the overall user experience.

For this reason, technology companies, research organisations, universities and global enterprises continuously invest in the production of high-quality AI Speech Data.
At Voices & Media Solutions, we apply rigorous methodologies throughout every stage of the production process to deliver consistent, scalable and production-ready speech datasets.

Our AI Speech Data Services

We provide a comprehensive range of specialised services covering the entire lifecycle of an AI Speech Data project.
Each service can be delivered independently or integrated into a complete solution tailored to your technical and business requirements.

Speech Data Collection

Speech data collection is the foundation of every voice-based Artificial Intelligence project.
We plan and manage speech data collection projects tailored to each client's requirements, ensuring participant diversity, recording quality and dataset consistency.
Regardless of the project size, we coordinate every stage of the process to deliver speech datasets ready for AI model training.

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Custom Speech Datasets

Every Artificial Intelligence project has unique requirements.
We develop custom speech datasets designed for different applications, languages, user profiles and industries.
Our datasets can be created for Automatic Speech Recognition, Text-to-Speech, Conversational AI, Voice Bots, Contact Centers, IVR systems and virtually any other voice-enabled application.

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Speech Recording for Artificial Intelligence

The quality of voice recordings has a direct impact on AI model performance.
We produce speech recordings either in our professional recording studio or through supervised remote recording sessions, ensuring high technical standards, consistency and uniformity across thousands of audio files.
Recordings can be produced according to the client's technical specifications, including audio formats, sample rates, quality standards and linguistic requirements.

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Portuguese Speech Datasets

Portuguese is one of the world's most widely spoken languages and presents significant linguistic diversity. Differences in pronunciation, vocabulary, rhythm and intonation across Portuguese-speaking countries make it essential to use datasets specifically developed for each language variant.
At Voices & Media Solutions, we specialise in the production of Portuguese Speech Datasets, delivering projects tailored to the different variants of the Portuguese language.
We produce speech data for:

• Portugal Portuguese or European Portuguese 
• Brazilian Portuguese
• Angolan Portuguese
• Mozambican Portuguese

Our projects can include different demographic profiles, genders, age groups, regional accents and usage scenarios, enabling the development of more accurate, inclusive and representative Artificial Intelligence models.
This expertise makes us a trusted partner for international organisations developing AI solutions for Portuguese-speaking markets worldwide.

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Multilingual Speech Data

Artificial Intelligence solutions are becoming increasingly global. Virtual assistants, Voice Bots and customer service platforms need to understand and communicate naturally across multiple languages.
Through our international network of professional voice talents and specialised partners, we coordinate multilingual speech data collection and production projects for organisations operating worldwide.
We deliver multilingual speech datasets tailored to specific technical and linguistic requirements, ensuring centralised project management and consistent quality standards, even for large-scale international programmes.
Whether your project requires one language or dozens, we provide a scalable, efficient and reliable production process.

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AI Data Consulting

Not every AI project starts with a speech dataset.
In many cases, the first challenge is defining the project's objectives, technical requirements and data collection strategy.
Our specialists support companies, research organisations and technology providers in the design, planning and implementation of AI Speech Data projects.
We help our clients define:

• Project objectives
• Technical specifications
• Data collection methodologies
• Quality assurance criteria
• Participant profiles
• Dataset structure
• Production planning
• International scalability

This strategic approach helps reduce costs, minimise risks and accelerate the development of Artificial Intelligence solutions.

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How We Deliver AI Speech Data Projects

Every project is unique, but we follow a structured methodology that ensures consistency, quality and full traceability throughout every stage of production.
 

Industries We Support

Our AI Speech Data Services are designed for organisations developing voice-enabled technologies and Artificial Intelligence solutions.
We work with clients across a wide range of industries, including:

• Artificial Intelligence Companies
• Large Language Model (LLM) Developers
• Contact Centers
• Telecommunications
• Healthcare
• Pharmaceutical Industry
• Banking & Insurance
• Energy & Utilities
• Public Sector
• Automotive
• Education
• Tourism & Hospitality
• Smart Device Manufacturers
• Software Companies
• Research Centres and Universities

Regardless of the size or complexity of your project, we adapt our services to your technical, linguistic and operational requirements.

Why Choose Voices & Media Solutions?

At Voices & Media Solutions, we combine decades of professional voice production experience with specialised expertise in AI Speech Data projects.
Our clients choose us because we deliver reliable, scalable and high-quality speech datasets while providing personalised support throughout every stage of the project.
We understand that every Artificial Intelligence project has unique technical, linguistic and operational requirements. That is why we work closely with each client to design solutions tailored to their specific objectives.
Why partner with us?

• More than 20 years of professional voice production experience
• Specialists in European Portuguese and other Portuguese language variants
• International network of professional voice talents and participants
• Multilingual speech data production
• Professional recording studio and remote recording capabilities
• End-to-end project management, from planning to final delivery
• Rigorous quality assurance and confidentiality standards
• Flexible solutions tailored to projects of any scale

Whether you are training a new AI model, improving an existing speech application or developing the next generation of conversational technologies, Voices & Media Solutions is your trusted partner for high-quality AI Speech Data.

Ready to Start Your Next AI Project?

The quality of your speech data has a direct impact on the performance of every Artificial Intelligence solution.
At Voices & Media Solutions, we help businesses, research organisations and technology companies develop reliable, scalable and high-quality speech datasets tailored to their specific requirements.
Whether you need speech data collection, custom speech datasets, multilingual recording projects or expert consulting, our team is ready to support you from initial planning through to final delivery.

Let's discuss your AI Speech Data project.