Omolabake Adenle: Preserving and Promoting Yoruba Language Through AI and Voice Recognition

Omolabake

In an era where technology increasingly shapes how we communicate, and many abandon their mother tongues in pursuit of global lingua francas, Omolabake Adenle chose a different path. Rather than denigrating her mother tongue, she built a digital innovation to promote it, making Yoruba language available in the tech world. This 43-year-old Nigerian-American engineer, entrepreneur, and investment strategist stands at the intersection of innovation and cultural preservation, embodying the nature of Yoruba women who have historically played front roles in societal development. Her work is a testament to a legacy of excellence, making the world a better place while contributing to the advancement of Yoruba language and culture anywhere and everywhere. Adenle has emerged as a transformative force in the technology sector, dedicating her expertise to a mission that many overlooked: making African languages accessible in the digital age.

Educational Excellence

Adenle’s journey began in the United States, where she was born and raised. Her academic trajectory reflects a commitment to excellence that would later define her professional career. She pursued doctoral studies at the prestigious University of Cambridge in the United Kingdom, earning a Ph.D. in Bayesian Signal Processing—a sophisticated field that combines mathematics, statistics, and computer science to process and analyze signals and data.

During her time at Cambridge, Adenle distinguished herself as both a National Science Foundation Graduate Research Fellow and a Tau Beta Pi Honors Fellow, recognitions that placed her among the elite scholars in her field. This rigorous academic training would prove instrumental in her later work developing complex algorithms for voice recognition and speech synthesis. The technical expertise she gained in signal processing became the bedrock upon which she would build solutions that bridge the gap between advanced technology and linguistic diversity.

From Investment Banking to Tech Entrepreneurship

Following her doctoral studies, Adenle took an unexpected turn into the world of finance, joining Morgan Stanley as Vice President for Quantitative and Derivative Strategies. This experience in investment banking provided her with valuable insights into market dynamics, strategic planning, and the operational aspects of building sustainable businesses. However, even as she excelled in the financial sector, a different calling began to take shape.

“My primary career has been as a banker, as an investment strategist. I moved from academia to banking and then into technology. I’m fortunate to be able to work across multiple sectors and industries and to enjoy the journey along the way.”

This multidisciplinary background, spanning engineering, finance, and technology, would prove to be Adenle’s greatest asset, allowing her to understand not just the technical challenges of building voice technology for African languages, but also the commercial viability and strategic positioning required to make such an endeavor successful.

The Genesis of an Idea: SpeakYoruba is Born

The spark that ignited Adenle’s entrepreneurial journey came from an unexpectedly simple observation. While working in investment banking, she watched her nieces and nephews engage with an English language learning app that used animated flashcards to teach letters of the alphabet. This moment of inspiration led to a profound realization: if such tools could help children learn English, why couldn’t similar resources exist for African languages?

“The idea to build the app actually came from me watching my nieces and nephews playing with an English language learning app. The app had animated flashcards, and it taught each letter in the English alphabet. I figured that we should have something similar for African languages, and I decided to make one for Yoruba.”

In 2010, during her spare time while working in investment banking, Adenle published SpeakYoruba on the Google Play Store. This paid application represented the first step in what would become a much larger mission. The app received positive reception and requests for similar applications in other African languages, planting the seeds for what would eventually become a comprehensive platform.

The Pivot: From App to Comprehensive Platform

As Adenle contemplated transitioning from investment banking to entrepreneurship, she revisited her SpeakYoruba app with fresh eyes and ambitious ideas. She wanted to incorporate advanced features that would allow children to speak to the app and receive feedback on their pronunciation. However, this vision hit a significant roadblock.

“I wanted to add a feature that would allow children to say something to the app, and the app will tell them whether they said the word currently. It was at that point that I realised that voice recognition wasn’t really available for African languages.”

This limitation revealed a much larger opportunity. Rather than simply building language learning apps, Adenle recognized the potential to create the foundational technology that would enable voice automation across African languages. She founded Aja.la Studios, later rebranded as Ajala.ai, with a mission to develop natural language and speech processing applications for under-resourced languages.

With support from Innovate UK, which provided grants for exploration and development, Adenle spent her first year developing complex algorithms and acoustic models for voice recognition and speech synthesis for African languages using deep learning. The promising results led to seed funding in 2018, enabling her to expand operations across four African countries and build sustainable data collection efforts.

Innovation and Impact: What It Means for Africa

Adenle’s work transcends mere technological achievement; it addresses fundamental issues of information access and digital inclusion across the African continent. Her platform currently supports five African languages—Yoruba, Hausa, Igbo, Kiswahili, and Kinyarwanda, with ambitious plans for broader coverage.

“We want to be the pipeline that everyday people can use to access digital information. We also want to be the conduit that enterprises can use to reach their customers and create new experiences using everyday speech.”

The significance of this work becomes clear when considering the barriers that millions of Africans face in accessing digital services. In many countries, literacy rates remain low, and vast populations live outside major urban centers where colonial languages dominate. These individuals, who speak primarily their native languages, have been effectively marginalised from the digital revolution. Adenle’s technology offers them a voice—literally and figuratively, enabling access to information and services through the languages they know best.

Her solution goes beyond consumer applications. As a solution-agnostic platform operating as an API, Ajala.ai allows developers across the continent to build localized solutions tailored to their specific needs. This approach democratizes access to voice technology, enabling innovation at scale across multiple sectors.

Recognition and Awards: Global Acknowledgment

Adenle’s groundbreaking work has garnered significant recognition from the international community. In 2021, she received the Diversity, Equity, and Inclusion (DEI) in Voice award from Women in Voice (WiV), a Seattle-based non-profit organization that champions women’s roles in voice technology. This prestigious award recognized her outstanding contributions to advancing diversity, equity, and inclusion in an industry that had largely overlooked African languages.

“It’s definitely an evolving situation. We’re seeing more women entering the pipeline at the undergraduate level, which contributes to the opportunity for women to mature in the industry and reach senior roles.”

In 2017, she was shortlisted for the African Innovation Foundation’s Innovation Prize for Africa (IPA), competing for a grand prize of $185,000 under the theme “African Innovation: Investing in Prosperity.” This recognition placed her among Africa’s most promising innovators, highlighting the transformative potential of her work.

A Vision for the Future

As a self-described member of “the class of the peripatetic Nigerian,” living between Nigeria, America, and London, Adenle embodies the global perspective necessary for her mission. Her work continues to evolve, with Ajala.ai partnering with major African institutions to build customized voice experiences and expanding data collection efforts to support additional languages.

Omolabake Adenle’s journey from Cambridge scholar to investment banker to tech entrepreneur illustrates the power of interdisciplinary thinking and cultural commitment. Through her innovations, she is not merely building technology, she is preserving heritage, democratizing information access, and ensuring that Africa’s linguistic diversity thrives in the digital age. Her work stands as a testament to what’s possible when technical expertise meets cultural passion, creating solutions that don’t just serve markets, but empower communities and preserve identities for generations to come.

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