Automatic Speech Recognition and Text-to-speech AI goes global

Train ASR models that can engage with your customers in any language or location. Build voice models with Defined.ai's AI-ready speech recognition and audio datasets and fine-tune the best TTS software with our speech services.
Potential reduction in Word Error Rate

100%

Potential reduction in Word Error Rate
Hours of AI-ready speech data

1 million+

Hours of AI-ready speech data
Markets, languages and locales covered

120+

Markets, languages and locales covered
Unique speech data types including scripted, podcasts and call center conversations

8+

Unique speech data types including scripted, podcasts and call center conversations

Trusted by

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Our voice AI solutions

Customers expect seamless interactions with AI applications like voice assistants. Meet their demands with ethically sourced, high-quality, bias-aware speech training datasets and fine-tune your AI models with speech solutions powered by our global crowd platform, Neevo.

Speech recognition datasets

Speech recognition datasets

Get instant access to high-quality, professionally recorded audio and real-world conversations to build and fine-tune ASR and TTS models for traditional and GenAI applications.

Browse all datasets

Evaluation of Experience

Evaluation of Experience

Integrate subjective human assessments for pronunciation, naturalness, context, and more for your TTS model. Available via API or as a bespoke managed service.

Learn more

Custom data collection

Custom data collection

Stand out from the competition with a TTS model trained on custom data built with superior voice talent and phonetically balanced scripts. Contact us today to set up a custom collection.

Set up a collection

Tooling

Tooling

Looking to train or enhance ASR model performance, or improve ASR data quality? Try our suite of tools including phonetic balancing, G2P, SNR, and more, including pre-built services.

Fine-tune your speech model

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We are thankful for Defined.ai’s unrelenting efforts in creating video, audio, and word datasets, carefully scripted and crafted yet delivered at an extremely high velocity for our neural networks to iterate and improve continually.

Saurabh Saxena

Head of Technology, VP R&D
Uniphore

Why us?

We wear our values on our sleeve and weave them into our data and solutions. Choosing Defined.ai means you get the benefit of our high standards enriching your AI initiatives.

As veteran industry professionals, we hold ourselves to the highest standards. See for yourself in our free data samples.

Quality

As veteran industry professionals, we hold ourselves to the highest standards. See for yourself in our free data samples.
Human-machine interaction AI is a big field, but we do it all. We’re confident we can deliver on your specific need.

Flexibility

Human-machine interaction AI is a big field, but we do it all. We’re confident we can deliver on your specific need.
Never worry about security or privacy—we’re one of the first GDPR-compliant AI companies with ISO 27001 and 27701 certifications.

Compliance

Never worry about security or privacy—we’re one of the first GDPR-compliant AI companies with ISO 27001 and 27701 certifications.
Our philosphy is that if data is the lifeblood of AI, people are the lifeblood of data. We’re your ethical AI partner.

Ethics

Our philosphy is that if data is the lifeblood of AI, people are the lifeblood of data. We’re your ethical AI partner.

Read our ASR and TTS case studies

Inclusive ASR Models: Using High-Quality, Ethical Data for Global Speech Recognition

Inclusive ASR Models: Using High-Quality, Ethical Data for Global Spee...

Defined.ai's speech data reduces client's Automatic Speech Recognition Word Error Rate acr...
Speech
NLP
English

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