{"id":659574,"date":"2026-02-05T14:55:59","date_gmt":"2026-02-05T13:55:59","guid":{"rendered":"https:\/\/preprod.aivancity.ai\/blog\/kyutai-and-olivier-goy-are-combining-ai-and-voice-technology-to-help-people-who-have-lost-the-ability-to-speak\/"},"modified":"2026-10-23T17:27:04","modified_gmt":"2026-10-23T15:27:04","slug":"kyutai-and-olivier-goy-are-combining-ai-and-voice-technology-to-help-people-who-have-lost-the-ability-to-speak","status":"publish","type":"post","link":"https:\/\/aivancity.ai\/blog\/en\/kyutai-and-olivier-goy-are-combining-ai-and-voice-technology-to-help-people-who-have-lost-the-ability-to-speak\/","title":{"rendered":"Kyutai and Olivier Goy are combining AI and voice technology to help people who have lost the ability to speak"},"content":{"rendered":"\n<p class=\"text-justify wp-block-paragraph\">Amyotrophic lateral sclerosis (ALS), better known as Charcot&#8217;s disease, affects approximately <strong>2 to 3 people per 100,000<\/strong> worldwide and leads to a progressive loss of motor function, including speech<sup><a href=\"#ref1\" type=\"internal\" id=\"#ref1\">1<\/a><\/sup>. For many patients, this loss of voice is one of the most difficult changes to cope with, as it directly affects communication, independence, and social connections. In response to this challenge, artificial intelligence is opening up new possibilities. At the start of this year, the French lab Kyutai introduced <strong>Invincible Voice<\/strong>, a voice AI developed in collaboration with Olivier Goy\u2014a committed entrepreneur who himself has ALS\u2014to enable patients to continue communicating despite the loss of speech.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-1\" style=\"color:#986e13\">When AI Becomes a Tool for Connection and Independence<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">The loss of the ability to speak affects the vast majority of people with ALS as the disease progresses. Clinical studies estimate that <strong>more than 80% of patients<\/strong> develop severe communication difficulties in the advanced stages<sup><a href=\"#ref2\" type=\"internal\" id=\"#ref2\">2<\/a><\/sup>. Invincible Voice is part of an approach in which AI is not viewed as a mere technical tool, but as a means of preserving relationships with others. By involving researchers and patients from the very beginning of the design process, Kyutai places real-world use and human impact at the heart of technological development.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-2\" style=\"color:#986e13\">Recreate a voice using just a few seconds of audio footage<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">From a scientific standpoint, \u201cInvincible Voice\u201d is based on major advances in neural speech synthesis. Kyutai notes that it is possible to <strong>reconstruct a voice from approximately ten seconds of recording<\/strong>, a threshold made possible by recent advances in deep learning models<sup><a href=\"#ref3\" type=\"internal\" id=\"#ref3\">3<\/a><\/sup>. According to Olivier Goy, the teams relied on audio archives recorded before the onset of the disease, particularly podcasts. This method allows for the reproduction not only of words, but also of timbre, intonations, and rhythm\u2014essential elements of vocal identity.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-3\" style=\"color:#986e13\">How &#8220;Invincible Voice&#8221; Works, Step by Step<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">\u201cInvincible Voice\u201d is based on <strong>Unmute<\/strong>, an open-source architecture developed by Kyutai. The system operates in a modular fashion. It begins with a real-time transcription of the patient\u2019s conversation partner\u2019s speech. A language model then analyzes the context and can suggest several appropriate responses. Finally, the selected response is <strong>synthesized vocally<\/strong> using the patient\u2019s reconstructed voice, resulting in a smooth and natural delivery. This comprehensive workflow enables continuous voice interactions without any artificial breaks in the conversation.<\/p>\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/jbS3skI9kDQ\n<\/div><\/figure>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-4\" style=\"color:#986e13\">Accessibility designed for people with severe disabilities<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">The tool was designed to accommodate various levels of motor impairment. For patients with severely limited mobility, \u201cInvincible Voice\u201d is compatible with<strong>eye-tracking<\/strong> devices, allowing users to select responses with their gaze. These assistive technologies are now recognized as essential tools for maintaining communication, particularly in neurodegenerative diseases<sup><a href=\"#ref4\" type=\"internal\" id=\"#ref4\">4<\/a><\/sup>. By integrating these devices from the design stage, Kyutai significantly expands the pool of potential beneficiaries.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-5\" style=\"color:#986e13\">A strategic choice: open source in the healthcare sector<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">Kyutai has chosen to release \u201cInvincible Voice\u201d as open source, to enable the scientific and medical community to adopt the technology. This openness facilitates the adaptation of the tool to other speech disorders, such as post-stroke aphasia or certain neurodegenerative diseases. The modular architecture allows each component\u2014transcription, text generation, or speech synthesis\u2014to be improved independently, fostering distributed and collaborative innovation.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-6\" style=\"color:#986e13\">A French voice AI ecosystem is taking shape<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">The project is supported by <strong>Gradium<\/strong>, Kyutai\u2019s first spin-off specializing in speech synthesis. Officially launched recently, the company has raised <strong>\u20ac60 million<\/strong> to commercialize its technologies and build a French ecosystem for voice AI<sup><a href=\"#ref5\" type=\"internal\" id=\"#ref5\">5<\/a><\/sup>. This momentum bridges the gap between fundamental research, industrial innovation, and concrete medical applications\u2014a key challenge for the large-scale deployment of assistive solutions.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-7\" style=\"color:#986e13\">Ethical issues, consent, and responsible use<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">The ability to mimic a human voice raises significant ethical questions. As part of \u201cInvincible Voice,\u201d Kyutai emphasizes strictly authorized and medical use, where speech synthesis aims to restore a lost ability, not to impersonate someone. The project\u2019s open-source nature also contributes to transparency and oversight by the scientific community. Research on AI ethics indeed emphasizes that voice synthesis technologies must be regulated to prevent misuse, while maximizing their positive social impact<sup><a href=\"#ref6\" type=\"internal\" id=\"#ref6\">6<\/a><\/sup>.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-8\" style=\"color:#986e13\">To give a voice back, both literally and figuratively<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">With \u201cInvincible Voice,\u201d Kyutai and Olivier Goy demonstrate that artificial intelligence can play a decisive role in the medicine of tomorrow. By giving a voice back to people gradually silenced by illness, this project illustrates a human-centered vision of AI, where technological prowess serves dignity, inclusion, and social connection. More than just a tool, Invincible Voice embodies a different approach to innovation, guided by its real-world impact on patients\u2019 lives.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-9\" style=\"color:#0064c6\">Learn more<\/h2>\n\n<p class=\"text-justify wp-block-paragraph\">The use of artificial intelligence to restore or enhance human capabilities is part of a broader trend of applying AI to healthcare. On a related topic, check out our article <a href=\"https:\/\/aivancity.ai\/blog\/en\/medgpt-the-free-french-medical-ai-that-rivals-chatgpt\/\"><strong>\u201cMedGPT: The Free French Medical AI That Rivals ChatGPT\u201d<\/strong><\/a>, which analyzes how specialized models are emerging to support patients and healthcare professionals, while raising key questions about reliability, ethics, and sovereignty.<\/p>\n\n<h3 class=\"wp-block-heading text-justify has-text-color has-link-color wp-elements-10\" style=\"color:#5a5e83\">References<\/h3>\n\n<p id=\"ref1\" style=\"text-align:justify;\">1. World Health Organization. (2023). Motor neuron diseases. <br\/> \n<a href=\" https:\/\/www.who.int \" target=\"_blank\">https:\/\/www.who.int <\/a><\/p>\n\n<p id=\"ref2\" style=\"text-align:justify;\">2. Hardiman, O. et al. (2017). Amyotrophic lateral sclerosis. The Lancet. <a href=\" https:\/\/doi.org\/10.1016\/S0140-6736(17)31287-4\" target=\"_blank\">https:\/\/doi.org\/10.1016\/S0140-6736(17)31287-4 <\/a><\/p>\n\n<p id=\"ref3\" style=\"text-align:justify;\">3. Taylor, J. et al. (2022). Neural Voice Cloning with Limited Data. arXiv.  <br\/> \n<a href=\"https:\/\/arxiv.org\/abs\/2203.00248\" target=\"_blank\">https:\/\/arxiv.org\/abs\/2203.00248 <\/a><\/p>\n\n<p id=\"ref4\" style=\"text-align:justify;\">4. Lancioni, G. et al. (2020). Assistive technologies for people with severe motor disabilities. Research in Developmental Disabilities. <br\/> <a href=\" https:\/\/doi.org\/10.1016\/j.ridd.2020.103722 \" target=\"_blank\"> \n https:\/\/doi.org\/10.1016\/j.ridd.2020.103722 <\/a><\/p>\n\n<p id=\"ref5\" style=\"text-align:justify;\">5. Les \u00c9chos. (2024). Gradium raises \u20ac60 million to develop voice AI. <br\/> <a href=\"https:\/\/www.lesechos.fr \" target=\"_blank\">\nhttps:\/\/www.lesechos.fr <\/a><\/p>\n\n<p id=\"ref6\" style=\"text-align:justify;\">6. Floridi, L. et al. (2018). AI4People\u2014An Ethical Framework for a Good AI Society. Minds and Machines.  <br\/> <a href=\"https:\/\/doi.org\/10.1007\/s11023-018-9482-5 \" target=\"_blank\">\nhttps:\/\/doi.org\/10.1007\/s11023-018-9482-5 \/a>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Amyotrophic lateral sclerosis (ALS), better known as Charcot&#8217;s disease, affects approximately 2 to 3 people per 100,000 worldwide and leads to a progressive loss of motor function, including speech1. For many patients, this loss of&#8230;<\/p>\n","protected":false},"author":9,"featured_media":661048,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[83],"tags":[79],"class_list":["post-659574","post","type-post","status-publish","format-standard","has-post-thumbnail","category-ai-health","tag-lets-talk-ai"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kyutai and Olivier Goy: A Voice AI to Help People Speak Again<\/title>\n<meta name=\"description\" content=\"Kyutai, in collaboration with Olivier Goy, has unveiled an open-source voice AI designed to help people with Charcot&#039;s disease communicate again.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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