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Welsh Voices Project

On the 30th of November 2023, CereProc Ltd, Bangor University and the Electronic Assistive Technology Service for NHS Wales were pleased to release 16 synthetic speech voices for the young people of Wales, in both Welsh and Welsh accented English.

Around 330,000 people in the UK need communication tools to help them speak, due to a variety of illnesses and learning difficulties. Augmentative and Alternative Communication (AAC) tools are used to supplement and improve limited communication skills, however for children it has been difficult to find an age-appropriate regional accent.

Bangor University and CereProc were awarded a contract to supply NHS Wales with 16 custom synthetic voices for children and teenagers. This solution will break down the communication barriers Welsh children face when using high-tech communication devices by providing them with a voice which reflects who they are and their cultural background.

The custom voices were created with male and female voices (both children and teenage) North and South Walian accents and are available in Welsh and English. All 16 voices are available from the CereProc Website

CereProc, the lead partner in this project, have previously worked with the Scottish government funded project ‘Scottish Child Voices’ and are responsible for building the synthetic voices and ongoing support. The Language Technologies Unit were responsible for sourcing the Welsh Language talents and are providing Welsh Linguistic information. The voices were built using CereProc’s advanced AI / DNN based CereWave AI technology.

CereProc partnered with Bangor Universities Language Technologies Unit, which is a self-funded research unit that specialises in Language Technologies for less resourced languages, primarily Welsh, and has expertise in Standardising Terminology, Natural Language Processing (NLP) and Voice Technologies (Text to Speech [TTS], Speech Recognition [ASR]).

Julie Morgan, Wales' deputy minister for social services, said children who used technology to help them speak "should not face a barrier to sounding like their friends and peers".

"I am delighted these new Welsh language and Welsh accented voices will help give them more options and a greater sense of Welsh identity," she said.

Dr Jeffrey Morris, Head of the Electronic Assistive Technology Service for NHS Wales and lead for delivering the new Welsh voices, said: “Due to the cost of development, companies operating in this field have unfortunately previously been unable to prioritise dialects and language models, and so we are thankful to the Welsh Government for stepping in and funding this important work which will have an immense impact on the children who rely on these devices. We anticipate that these new voices will further reduce barriers to children using high-tech communication devices in Wales, allowing them to speak with an accent and language representative of their family and peers.”

Professor Delyth Prys – Head of the Languages Technologies Unit said: “Bangor University are very happy to work with CereProc on this project. The combination of CereProc’s commercial speech synthesis expertise with Bangor’s experience and knowledge of speech technology for Welsh is a very fruitful one and we hope to continue this successful partnership in future”.

Paul Welham – Executive Chairman of CereProc stated “The award of this contract to build 16 custom synthetic AI voices in partnership with Bangor is a great achievement for both organisations. It clearly shows that CereProc’s strategy of working in partnership with organisations, such as Bangor, NLB (Norway) and MTM (Sweden), is the right one. This strategy provides AI produced voices to any organisations cost effectively, on virtually any device.”