--- title: Voxygen Dydu-Zaion Partnership description: Dydu-Zaion offers Voxygen voices in its voicebots to customers seeking quality, stability, and sovereignty. image: https://www.voxygen.fr/hubfs/9-Pictogrammes_portraits_web/Homme_lunettes_au_t%C3%A9l%C3%A9phone_picto_fond_vert_d%C3%A9grad%C3%A9.png --- ![Voxygen\_logo\_cmyk\_hq](https://www.voxygen.fr/hs-fs/hubfs/Voxygen_logo_cmyk_hq.png?width=521&height=194&name=Voxygen_logo_cmyk_hq.png) Applications [Success stories](https://www.voxygen.fr/en/blog-voxygen/tag/use-case) Solutions [About us](https://www.voxygen.fr/a-propos?hsLang=en) [Contact](https://www.voxygen.fr/formulaire-contact?hsLang=en) [Blog](https://www.voxygen.fr/en/blog-voxygen/tag/blog) - [English](https://www.voxygen.fr/en/blog-voxygen/partenariat-voxygen-dydu-zaion) - [Français](https://www.voxygen.fr/blog-voxygen/partenariat-voxygen-dydu-zaion) Applications Your industry [More industries](https://www.voxygen.fr/autres-secteurs?hsLang=en) [![Vector (1)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(1).png?width=17&height=21&name=Vector%20(1).png) Banking & Insurance](https://www.voxygen.fr/banque-assurance?hsLang=en) [![Vector (2)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(2).png?width=17&height=21&name=Vector%20(2).png) Utilities](https://www.voxygen.fr/distribution-d%C3%A9nergie?hsLang=en) [![Vector (3)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(3).png?width=17&height=21&name=Vector%20(3).png) Transport](https://www.voxygen.fr/transport?hsLang=en) [![Vector (4)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(4).png?width=17&height=21&name=Vector%20(4).png) Conversational AI](https://www.voxygen.fr/ia-conversationnelle?hsLang=en) [![Vector (5)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(5).png?width=17&height=21&name=Vector%20(5).png) Telecommunications](https://www.voxygen.fr/telecoms?hsLang=en) ![Logo\_SNCF\_2011.svg](https://www.voxygen.fr/hs-fs/hubfs/Logo_SNCF_2011.svg.png?width=1024&height=539&name=Logo_SNCF_2011.svg.png) Discover the story of the creation of the SNCF's digital voice! SNCF chose Voxygen to digitalise the voice that is known and heard throughout France. [See success story](https://www.voxygen.fr/blog-voxygen/sncf?hsLang=en) Your team [![Vector (1)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(1).png?width=17&height=21&name=Vector%20(1).png) Product department](https://www.voxygen.fr/tts-pour-equipe-produit?hsLang=en) [![Vector (2)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(2).png?width=17&height=21&name=Vector%20(2).png) Customer Service](https://www.voxygen.fr/equipe-service-client?hsLang=en) [![Vector (3)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(3).png?width=17&height=21&name=Vector%20(3).png) Communication & Branding](https://www.voxygen.fr/equipe-communication-marque?hsLang=en) [![Vector (4)](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(4).png?width=17&height=21&name=Vector%20(4).png) IT - Omnichannel platforms](https://www.voxygen.fr/equipe-dsi-pf-omnicanales?hsLang=en) Need more information? [Contact us](https://www.voxygen.fr/formulaire-contact?hsLang=en) Solutions [![Server orange](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(2).png?width=17&height=21&name=Vector%20(2).png) Server - TTS on-premises Host your text-to-speech solution on your own infrastructure](https://www.voxygen.fr/voxygen-tts-server?hsLang=en) [![Cloud rose](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(1).png?width=17&height=21&name=Vector%20(1).png) Cloud - TTS API Using speech synthesis in SaaS mode](https://www.voxygen.fr/voxygen-tts-cloud?hsLang=en) [![Studio violet](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(3).png?width=17&height=21&name=Vector%20(3).png) Studio - TTS SaaS A user interface for creating audio messages easily](https://www.voxygen.fr/voxygen-studio?hsLang=en) [![Device bleu](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(4).png?width=17&height=21&name=Vector%20(4).png) Device - TTS offline Embedded text to speech for off-line use](https://www.voxygen.fr/voxygen-tts-device?hsLang=en) [![Voix vert](https://www.voxygen.fr/hs-fs/hubfs/Vector%20(5).png?width=17&height=21&name=Vector%20(5).png) Customised voice A voice that reflects your brand identity](https://www.voxygen.fr/voix-personnalisee?hsLang=en) ![BNP-Paribas-logo](https://www.voxygen.fr/hs-fs/hubfs/BNP-Paribas-logo.png?width=5000&height=1300&name=BNP-Paribas-logo.png) The creation of BNP Paribas' voice assistants Voxygen has created two personalised brand voices for the virtual assistants Telmi (BNP Paribas) and HelloïZ (Hello Bank). BNP Paribas is revolutionising the user experience with its online banking and digital assistants! [Read success story](https://www.voxygen.fr/blog-voxygen/bnp_paribas?hsLang=en) Need more information? [Contact us](https://www.voxygen.fr/en/contact-form?hsLang=en) # Partner Case Study: Dydu-Zaion Why Voxygen's TTS Is Important for Dydu-Zaion Customers ![Logo-Horizontal-Degradé@2x](https://www.voxygen.fr/hs-fs/hubfs/Logo-Horizontal-Degrad%C3%A9@2x.png?width=3840&height=2046&name=Logo-Horizontal-Degrad%C3%A9@2x.png) Intelligibility Real-time performance Data Management [Accueil](https://www.voxygen.fr?hsLang=en) [Use case](https://www.voxygen.fr/en/blog-voxygen/tag/use-case) Voxygen Dydu-Zaion Partnership ![Voxygen\_logo\_cmyk\_hq](https://www.voxygen.fr/hs-fs/hubfs/Voxygen_logo_cmyk_hq.png?width=521&height=194&name=Voxygen_logo_cmyk_hq.png) Customizable 100% French technology Scalable ![Homme\_sourit\_au\_téléphone\_picto](https://www.voxygen.fr/hs-fs/hubfs/Design_sans_titre__7_-removebg-preview.png?width=500&height=500&name=Design_sans_titre__7_-removebg-preview.png) Need text-to-speech? [Contact us](https://www.voxygen.fr/formulaire-contact?hsLang=en) # Voxygen Dydu-Zaion Partnership Published on November 13 2026 # 🎤 Interview Céline Sollberger Marketing Manager at Dydu-Zaion   # 👋 Overview ## 1. Could you tell us a little about Dydu-Zaion**?** Founded in 2009, Dydu is a French company that is a pioneer in conversational AI.  It enables its customers to independently design their own chatbots and callbots—agents capable of communicating both in writing and verbally, over the phone—using a proprietary, no-code solution, with a clear mission: to lighten the daily workload of support teams while improving user satisfaction. In March 2026, Dydu joined Zaion, the French specialist in agent-based AI for customer relations, founded in 2017 on a long history of expertise in voice technology, which helps large companies optimize their customer interactions using sovereign technology designed to address their critical security, compliance, and performance challenges. Dydu and Zaion now cover all customer relationship channels—both written and voice-based—with a comprehensive solution designed, developed, and hosted in France. # ✅ Why Choose Voxygen? ## 2. What factors led you to integrate Voxygen technology into your platform? The integration of Voxygen into the Zaion/Dydu platform reflects our commitment to offering our customers a very high-quality conversational voice experience, while giving them the freedom to choose the technology best suited to their needs. We were particularly impressed by the quality and expressiveness of Voxygen’s voices, the advanced capabilities for customization and creating voice identities, and the technology’s ability to integrate seamlessly into real-time conversational flows. This integration enriches the Zaion/Dydu technology ecosystem with a French text-to-speech solution that is particularly well-suited to the needs of large enterprises in terms of customer experience, personalization, and technological expertise. ## 3. What are your main technical or functional criteria for speech synthesis? Our main criteria for selecting speech synthesis technology are as follows:  - Naturalness and clarity of the voice, to ensure a smooth and enjoyable experience, even during long conversations. - Expressiveness and customization options: prosody, speech rate, intonation, pronunciation, as well as the option to use specific voices or branded voices. - Real-time performance—particularly in terms of latency and streaming capacity—is essential for conversational phone calls. - The solution's robustness and scalability to support large volumes of simultaneous conversations. - Quality and ease of integration through well-documented APIs tailored to our architecture. - Language coverage and quality by language, to tailor the TTS engine to different customer contexts. - Flexibility in deployment and control over data, particularly when our clients have specific requirements regarding hosting, sovereignty, or privacy. - Finally, the supplier's ability to meet specific needs and adapt its technology is also an important criterion for Zaion. Our approach is to maintain an open platform capable of integrating multiple text-to-speech engines and selecting the technology best suited to each client’s context and requirements.   ## 4. What do you expect from a partner that specializes in speech synthesis ? Above all, we expect a partner specializing in text-to-speech to be able to support us over the long term, both technologically and operationally. This requires a high level of service, high-performance technology that is regularly updated, and the ability to respond quickly to our clients’ specific needs: new voices, pronunciation adjustments, customization, or specific deployment requirements. We also place great importance on the responsiveness of the team, the quality of support, and the ability to collaborate on voice design and user experience issues. Finally, we are looking for a partner capable of anticipating developments in the voice AI market and adapting its solutions in line with our own innovations, as part of a technology partnership rather than a simple supplier relationship. # 🔗 Voxygen Integration ## 5. How did the integration of Voxygen technology into your platform go ? The integration of Voxygen technology into the Zaion platform went smoothly. Our architecture was designed from the outset to support the integration of various text-to-speech engines and enable their use within our conversational flows. The interfaces provided by Voxygen allowed us to easily integrate the service into our voice processing pipeline, while maintaining the performance and responsiveness required for real-time phone conversations. Beyond the purely technical integration, we were also able to make Voxygen voices accessible directly from our conversational design tools, so that our teams and customers can select and use them naturally within their journeys. ## 6. How does communication work between you and Voxygen? Our interactions with Voxygen are straightforward and efficient. We primarily work with a sales representative to manage the partnership, and we rely on their support when needed. We appreciate the responsiveness, professionalism, and quality of our interactions with their teams, which allow us to address issues quickly as they arise. ## 7. Do you ever need to contact Voxygen Support? We don't need to contact Voxygen support very often on a day-to-day basis. When we do, our interactions are straightforward, and the support team is generally responsive and effective in handling our requests. # 🗣️ The Customer's Choices ## 8. What factors influence customers' choice of a particular text-to-speech technology? Three criteria consistently come up among our clients when they are evaluating different text-to-speech technologies. First, speed: latency is critical to the fluidity of a voice conversation; a response time that is too long immediately ruins the experience and undermines the positive impression the customer may have of the interaction. Next, the quality of the voice itself—a criterion for which expectations have evolved. The goal is no longer speech that sounds like reading from a script, but rather a natural “telephone conversation” style: the rhythm, intonations, and fluidity of a real spoken exchange, with its own conventions, distinct from those of pre-recorded audio content like a podcast. It is this level of naturalness that determines the listener’s trust in the AI voice agent. Finally, data sovereignty: for large enterprises operating in regulated sectors (banking, insurance, mutual insurance), being able to guarantee where and how voice data is processed and hosted is often a non-negotiable requirement, not merely a differentiating factor. ## 9. Have you received any feedback from your customers regarding Voxygen voices? If so, what kind? Yes, and the feedback has been very positive on three points in particular: - First, speed: our customers highlight the voice generation time, which allows the system to keep up with the pace of a real-time voice conversation without any perceptible latency for the listener. - Next is reliability: the stability of the technology in production—handling large call volumes over the long term—is a criterion that our clients in regulated industries monitor very closely. - Finally, competitive pricing: given equivalent quality and reliability, our customers appreciate reasonable pricing—a key deciding factor when speech synthesis is deployed on a large scale. # 🤝 Conclusion:  A High-Quality Partnership ## 10. How would you describe your partnership with Voxygen today? Today, our partnership with Voxygen is fully in line with the rationale that drove this integration from the very beginning: to offer our customers a high-quality conversational voice experience, with expressive, customizable voices that are perfectly suited for real-time use. From a technical standpoint, Voxygen meets our requirements for production performance, naturalness and intelligibility of the voice, latency and streaming management, and robustness under high call volumes—all of which are essential criteria for our clients in regulated industries. But beyond the technology, it’s the quality of the support that makes the difference: a responsive team, available to work with us on voice design and user experience challenges, and capable of adapting its solution to our specific needs.                               Autres articles ## Vous pouvez également consulter [Voir plus d'articles](https://www.voxygen.fr/blog-voxygen/tag/cas-client?hsLang=en) #### [![logo\_Absys](https://www.voxygen.fr/hubfs/Capture%20d%E2%80%99%C3%A9cran%202026-07-28%20%C3%A0%2015.17.35.png) ![post image](https://www.voxygen.fr/hs-fs/hubfs/9-Pictogrammes_portraits_web/Homme_casque_picto_fond_violet.jpg?width=380&height=260&name=Homme_casque_picto_fond_violet.jpg) Partner Case Study absys Vocal assistants "Babol, the voice assistant developed by absys, uses Voxygen's AI voices to deliver a smooth, natural, and high-performance calling experience." See more](https://www.voxygen.fr/en/blog-voxygen/voxygen-x-absys?hsLang=en) #### [![Électricité\_de\_France\_logo.svg](https://www.voxygen.fr/hubfs/%C3%89lectricit%C3%A9_de_France_logo.svg.png) ![post image](https://www.voxygen.fr/hs-fs/hubfs/vert12.png?width=380&height=260&name=vert12.png) EDF Utilities "To optimise its customer relationship and communicate quickly, EDF is using Voxygen's TTS solutions and created its brand voice." See more](https://www.voxygen.fr/en/blog-voxygen/edf?hsLang=en) #### [![Logo\_SNCF\_2011.svg-2](https://www.voxygen.fr/hubfs/Logo_SNCF_2011.svg-2.png) ![post image](https://www.voxygen.fr/hs-fs/hubfs/1%20(2).png?width=380&height=260&name=1%20(2).png) SNCF Transport "A pioneer in the world of brand voice through Simone Hérault's TTS voice, SNCF is deploying all of Voxygen's text-to-speech solutions." See more](https://www.voxygen.fr/en/blog-voxygen/sncf?hsLang=en) ![Voxygen\_logo\_w\_cmyk](https://www.voxygen.fr/hubfs/Voxygen_logo_w_cmyk.svg) Professional Speech Synthesis [Contact us](https://www.voxygen.fr/en/contact-form?hsLang=en) Your industry [Banking & Insurance](https://www.voxygen.fr/banque-assurance?hsLang=en) [Utilities](https://www.voxygen.fr/distribution-d%C3%A9nergie?hsLang=en) [Transport](https://www.voxygen.fr/transport?hsLang=en) [Conversational AI](https://www.voxygen.fr/ia-conversationnelle?hsLang=en) [Telecommunications](https://www.voxygen.fr/telecoms?hsLang=en) [Other industries](https://www.voxygen.fr/autres-secteurs?hsLang=en) Our solutions [Cloud - TTS API](https://www.voxygen.fr/voxygen-tts-cloud?hsLang=en) [Server - TTS on-premises](https://www.voxygen.fr/voxygen-tts-server?hsLang=en) [Studio - TTS SaaS](https://www.voxygen.fr/voxygen-studio?hsLang=en) [Device - TTS offline](https://www.voxygen.fr/voxygen-tts-device?hsLang=en) [Customised voice](https://www.voxygen.fr/voix-personnalisee?hsLang=en) [About us](https://www.voxygen.fr/en/about-us?hsLang=en) [Contact](https://www.voxygen.fr/en/contact-form?hsLang=en) © Voxygen [Legal](https://www.voxygen.fr/mentions-legales?hsLang=en) [Privacy Policy](https://www.voxygen.fr/usage-et-rgpd?hsLang=en) [Cookies](https://www.voxygen.fr/usage-et-rgpd?hsLang=en) [![174857](https://www.voxygen.fr/hs-fs/hubfs/174857.png?width=256&height=256&name=174857.png)](https://fr.linkedin.com/company/voxygen-sas) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Voxygen", "url" : "https://www.voxygen.fr/en/blog-voxygen/author/voxygen" }, "dateModified" : "2026-11-13T09:31:52.413Z", "datePublished" : "2026-11-13T09:21:11.000Z", "headline" : "Voxygen Dydu-Zaion Partnership", "image" : [ "https://www.voxygen.fr/hubfs/9-Pictogrammes_portraits_web/Homme_lunettes_au_t%C3%A9l%C3%A9phone_picto_fond_vert_d%C3%A9grad%C3%A9.png" ], "mainEntityOfPage" : { "@id" : "https://www.voxygen.fr/en/blog-voxygen/partenariat-voxygen-dydu-zaion", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.voxygen.fr/hubfs/Voxygen_logo_cmyk.png" }, "name" : "Voxygen" } } ```