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The project goal is to create a voice chatbot, on option A without avatar and on option B with avatar. Please submit estimated time either per option, A or B, or per version (A1, A2, A3, B1, B2, B3) OPTION A — Voice Chatbot (no avatar) Version A1 — Flexible (multiple platforms) Title: Prototype Voice Chatbot (Android Tablet) – STT + LLM + TTS Description: We need a quick prototype (2–3 weeks) of a voice chatbot for Android with the following features: - Speech-to-Text (STT): Google Speech-to-Text or Whisper API (OpenAI). - LLM: OpenAI GPT-4o / GPT-4o-mini, or similar. - Text-to-Speech (TTS): Google Cloud TTS, Azure TTS, or ElevenLabs. - Simple Android app: push-to-talk button, voice reply playback. - Optional backend to handle API calls (Firebase, AWS Lambda, etc.). Deliverables: Functional APK + demo video + short documentation. Timeline: 2–3 weeks Version A2 — Unified (Google Cloud) Title: Prototype Voice Chatbot (Android Tablet) – Google Cloud AI Description: We want a functional prototype of a voice chatbot on Android tablet, based entirely on Google Cloud. - STT: Google Cloud Speech-to-Text - LLM: Gemini 1.5 Flash or Vertex AI (PaLM/Gemini) - TTS: Google Cloud Text-to-Speech - Backend: Firebase Functions - Android App: Flutter or Android Studio Deliverables: APK + demo video + documentation. Timeline: 2–3 weeks Version A3 — Unified (AWS) Title: Prototype Voice Chatbot (Android Tablet) – AWS AI Description: Quick prototype of a voice chatbot for Android, built on Amazon Web Services (AWS). - STT: Amazon Transcribe - LLM: Amazon Bedrock (Claude, Llama 3, etc.) - TTS: Amazon Polly - Backend: AWS Lambda - Android App: Flutter or Kotlin/Java Deliverables: APK + demo video + documentation. Timeline: 2–3 weeks OPTION B — Chatbot with Photorealistic Avatar Version B1 — Flexible (multiple platforms) Title: Prototype Chatbot with Photorealistic Avatar (Android Tablet) Description: We need a quick demo prototype (3–4 weeks) of a chatbot with a photorealistic avatar for Android. - STT: Google Speech-to-Text or Whisper API - LLM: OpenAI GPT-4o / GPT-4o-mini or Gemini - TTS: Google Cloud, Azure, or ElevenLabs - Avatar: Heygen API or D-ID API (preferably with real-time streaming) - Emotion: Azure Cognitive Services or similar - Android App: basic UI with microphone + avatar video Deliverables: APK + demo video + documentation. Timeline: 3–4 weeks Version B2 — Unified (Azure) Title: Prototype Chatbot with Avatar (Android Tablet) – Azure AI + D-ID Description: Prototype of a chatbot with photorealistic avatar, based on Microsoft Azure Cognitive Services. - STT: Azure Speech-to-Text - LLM: Azure OpenAI (GPT-4o / GPT-4o-mini) - TTS: Azure Neural Voices - Avatar: D-ID API (real-time streaming) - Emotion: Azure Sentiment Analysis (basic positive/negative/neutral) - Backend: Azure Functions - Android App: Flutter Deliverables: APK + demo video + documentation. Timeline: 3–4 weeks Version B3 — Unified (AWS) Title: Prototype Chatbot with Avatar (Android Tablet) – AWS AI + D-ID Description: Prototype of a chatbot with photorealistic avatar, built on Amazon Web Services (AWS). - STT: Amazon Transcribe - LLM: Amazon Bedrock (Claude, Llama 3, etc.) - TTS: Amazon Polly - Avatar: D-ID API - Emotion: Amazon Comprehend (basic sentiment analysis) - Backend: AWS Lambda - Android App: Flutter Deliverables: APK + demo video + documentation. Timeline: 3–4 weeks
ID del proyecto: 39977434
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242 freelancers están ofertando un promedio de €1.186 EUR por este trabajo

***** Voice Chatbot & Avatar Prototypes for Android Tablet **** Hello, How are you? I am able to Develop Option A voice-only chatbot prototypes (A1, A2, A3) using Google, AWS, or mixed-platform AI services, featuring STT → LLM → TTS pipelines with a simple Android app and optional backend. Timeline per Option A prototype: 2–3 weeks for APK, demo video, and documentation. Develop Option B chatbot prototypes with a photorealistic avatar (B1, B2, B3) integrating avatar APIs (Heygen/D-ID) and emotion/sentiment analysis with STT → LLM → TTS. Timeline per Option B prototype: 3–4 weeks for APK, demo video, and documentation. After detail discussion can share more clearly.. Let’s chat.. Thanks
€920 EUR en 7 días
9,3
9,3

Hey there! My name is Muhammad Awais from ZAWN Tech, and I genuinely believe we're the perfect match for your Voice Chatbot Development project. Our firm was built on the foundation of innovative solutions like the one you're seeking. With expertise in AI and Natural Language Processing, we're confident we can ace every version of your chatbot. We'll leverage our extensive know-how in Android and Flutter app development to create top-notch prototypes that are flexible, unified, and photorealistic (depending on your chosen options). Having worked with esteemed technologies like OpenAI GPT-4o and AWS Bedrock, our team is well-equipped to deliver a functional and dynamic application that meets your specific requirements within your timeline. Additionally, our experience goes beyond just delivering code; we also focus on providing clear documentation, a demo video, and long-term support to ensure you can seamlessly implement and maintain the solution. So if you want a collaborative partner who is passionate about transforming complex ideas into reliable and scalable solutions, let's tackle this project together. Choose ZAWN Tech for an impressive voice chatbot experience!
€1.500 EUR en 30 días
9,0
9,0

I have over a decade of experience in web and mobile development, specializing in various technologies like WordPress, Shopify, and Python. I understand your project goal of creating a voice chatbot, either with or without an avatar, and the specific requirements outlined in the job description. In the past, I have successfully worked on projects in the blockchain, eCommerce, and AI/ML domains, delivering tailored solutions that drive results. My expertise aligns perfectly with the development of voice chatbots, and I am confident in my ability to deliver a high-quality prototype within the specified timelines. I encourage you to reach out to discuss your project further. I am looking forward to the opportunity to collaborate and bring your vision to life. Let's connect and make your voice chatbot project a success. Thank you.
€1.200 EUR en 20 días
8,0
8,0

Hello, I am excited about the opportunity to work on your voice chatbot project. With over 10 years of experience in mobile app development, AI integration, and cloud services, I can deliver high-quality prototypes for both Option A (Voice Chatbot without avatar) and Option B (Voice Chatbot with photorealistic avatar). For Option A, I can build a flexible, functional voice chatbot that integrates the latest speech-to-text, LLM, and text-to-speech technologies, using platforms like Google Cloud, AWS, or Firebase, depending on your preference. I will deliver an APK, demo video, and clear documentation within 2–3 weeks. For Option B, I will create a chatbot prototype with a photorealistic avatar using APIs such as D-ID or Heygen, along with advanced emotion recognition and cloud-based AI integration (Azure or AWS). This prototype will be ready within 3–4 weeks, including the required APK, demo video, and documentation. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I have previously worked on similar AI and mobile projects and can share relevant examples. I look forward to collaborating with you and bringing this innovative concept to life. Thanks,
€750 EUR en 7 días
8,2
8,2

I am a skilled professional with expertise in Java, Mobile App Development, Android, XMPP, and Flutter. Your project on Voice Chatbots Development aligns perfectly with my skill set. I am confident in my ability to deliver high-quality results within your specified timeline. The budget can be adjusted as per the project scope, and I am committed to working within your financial parameters. Please review my extensive 15-year-old profile to see my previous work. I am eager to discuss the project details and showcase my dedication. Looking forward to the opportunity to collaborate.
€1.050 EUR en 21 días
6,9
6,9

Hi I’ve built voice-driven assistants and multimodal AI prototypes across Google Cloud, AWS, Azure, and OpenAI stacks, so I can deliver every version of your chatbot—both the voice-only (A-series) and the photorealistic avatar (B-series). The main technical challenge is achieving low-latency STT → LLM → TTS streaming while keeping the Android app simple, and I solve this with optimized API routing, lightweight state handling, and clean integration of Whisper/Google/Azure/AWS pipelines. I can produce Flutter or native Android builds, connect real-time avatar APIs like Heygen or D-ID, and deploy backend functions on Firebase, Azure, or Lambda with proper key management. I’ll provide stable APKs, demo videos, and clear documentation for each requested version (A1–A3, B1–B3). My past work includes STT/LLM/TTS chatbots, emotion-driven avatar systems, and AI streaming interfaces built for tablets and kiosks. I can deliver fast, stable prototypes while keeping your existing architecture preferences. Thanks, Hercules
€1.500 EUR en 7 días
6,9
6,9

⭐⭐⭐⭐⭐ Valuable Client, CnELIndia, led by Raman Ladhani, can successfully deliver your voice chatbot project across both options A and B. For Option A, we can rapidly prototype Android apps (A1-A3) integrating STT (Google, Whisper, Amazon), LLMs (OpenAI GPT-, Gemini, Bedrock), and TTS (Google, Azure, Amazon) with lightweight backends (Firebase, AWS Lambda) within 2–3 weeks per version. For Option B, we can implement photorealistic avatars (Heygen/D-ID) with real-time streaming, emotion integration (Azure/AWS Cognitive Services), and Flutter-based Android apps in 3–4 weeks per version. Our approach includes structured API integration, robust mobile UI/UX, and comprehensive testing to ensure seamless voice interaction. Deliverables include functional APKs, demo videos, and documentation. We provide end-to-end support from architecture design to deployment, ensuring timely, high-quality prototypes for all versions. Estimated timelines: A1–A3: 2–3 weeks; B1–B3: 3–4 weeks.
€1.125 EUR en 7 días
7,1
7,1

Hello, I have reviewed your detailed project for voice chatbots both without and with photorealistic avatars. With strong expertise in Android, Flutter, AI chatbot development, and API integrations, I can efficiently deliver prototypes matching your specific tech stacks across options A and B. I will adhere to your 2-3 weeks timeline for version A options and 3-4 weeks for avatar versions, including APK, demo video, and documentation. Let’s discuss your preferred platforms for initial focus and clarify the backend approach to meet your goals smoothly. Thanks, Sagarmoy
€1.400 EUR en 21 días
6,7
6,7

Hi there, I will build your voice-based chatbot and can deliver it in any of the versions you listed, whether you want a simple voice assistant (Option A) or a full avatar experience (Option B). Each version can be completed within the timelines you provided, and I will keep the setup clean, stable, and easy to test. The Android app will handle listening, sending the audio or text to your chosen AI service, and playing back the final voice response. For avatar versions, I will connect platforms like Heygen or D-ID so the responses feel natural and lifelike. I recommend starting with Version A1 if you want the fastest prototype that lets you compare accuracy between Google, Whisper, and different TTS engines before committing to one ecosystem long-term. Looking forward to discussing further. Regards, Karman.
€2.000 EUR en 18 días
7,3
7,3

. I’ve reviewed all versions under Options A and B, and I can deliver either a voice-only chatbot or the full avatar-based prototype depending on your preferred stack. Here’s the estimated timeline per version: Option A — Voice Chatbot (no avatar) • A1 (Multi-platform): 2–3 weeks • A2 (Google Cloud): 2–3 weeks • A3 (AWS): 2–3 weeks Option B — Chatbot with Photorealistic Avatar • B1 (Multi-platform): 3–4 weeks • B2 (Azure + D-ID): 3–4 weeks • B3 (AWS + D-ID): 3–4 weeks I can provide the APK, demo video, and clean documentation for any version you select. Once you confirm which option you’d like to move forward with, I’ll share a detailed plan and begin immediately. Looking forward to your confirmation. Thank's,
€750 EUR en 25 días
6,9
6,9

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya
€1.500 EUR en 7 días
6,5
6,5

Hello, I went through your breakdown for A and B, and the structure is solid. Each version is clear, realistic, and straightforward to scope. I can take on both the voice-only chatbot and the avatar-based one I’m currently working on similar conversational + STT/LLM/TTS builds, so setting up clean pipelines across Google/Azure/AWS won’t be an issue. For each option, I can deliver the Android prototype, backend wiring, and a demo-ready flow within the timelines you’ve outlined. Once we align on which route you prefer, I’ll map out the exact steps and deliverables so you have a predictable build with a smooth handoff. Please let me know your thoughts. Looking forward, Sagar P.
€1.125 EUR en 7 días
6,8
6,8

Hi Mário P. I’ve carefully read your project details "Voice Chatbots Development" and I’m confident I can deliver exactly what you’re looking for. With 5+ years of experience, 400+ 5★ reviews, and 500+ completed projects, I specialize in building high-performing websites, Shopify/WordPress solutions, and SEO-optimized platforms that drive real results. ★ Why Clients Choose Me Proven Track Record → 400+ reviews, 500+ projects Web Expertise → WordPress, Shopify, wix, Laravel, React, Vue.js, PHP, Python and more E-commerce & SEO → Store setup, payments, on-page SEO, performance boost UI/UX Design → Modern, responsive, conversion-focused On-Time & On-Budget → 96% timely, 97% within cost Reliable Support → Free 1-month help + long-term maintenance Secure Solutions → Backups, security & optimization Risk-Free Guarantee → No upfront payment. Pay only when satisfied, with full money-back assurance. If you want a professional developer who delivers on time, on budget, and stress-free, let’s connect. I’ll turn your vision into a secure, rapid, and growth-focused digital experience. Best regards, Kausar Parveen
€999 EUR en 10 días
6,5
6,5

I'm can start from now and deliver to you within your timeline. Hello Dear, I can develop a complete voice chatbot prototype for Android as described in your project. For Option A, I can deliver versions A1, A2, and A3 within 2 to 3 weeks each, integrating STT, LLM, and TTS using the required platforms such as Google Cloud, AWS, or OpenAI. For Option B, I can create the photorealistic avatar chatbot versions B1, B2, and B3 within 3 to 4 weeks each, combining real-time voice, AI responses, and avatar streaming through APIs like D-ID or Heygen. I will provide a functional APK, demo video, and documentation for every version, ensuring smooth performance and a professional user experience. Please Take a Look at My Professional Portfolio: https://www.freelancer.pk/u/zainalitariq245/Full-Stack-Development-18715 If you’d like to discuss more about the project, just connect with me chat. Best Regards, Zain
€1.500 EUR en 7 días
6,2
6,2

As an experienced software and mobile app developer, I am confident that my team at Bluewebspark Technologies is the right choice for your project. With over a decade of experience delivering innovative software solutions for businesses, we have the skills and expertise needed to create functional voice chatbots for Android. In addition, we can handle every version of the voice chatbot that you need; be it Version A1 - A3 or Version B1 - B3. Our work incorporates the best tools available such as Google Cloud TTS, Whisper API (OpenAI), Firebase functions, Azure TTS just to mention a few. For each version mentioned in the project description, we promise to deliver functional APKs, demo videos, and comprehensive documentation within a tight 2-4 week timeframe of your choice. At Bluewebspark Technologies, our mission is to empower businesses with cutting-edge technology solutions and build a future filled with digital innovation. Let us help you turn your vision into reality by creating a top-notch voice chatbot solution that perfectly aligns with your needs. Let's start this journey together!
€1.325 EUR en 7 días
6,2
6,2

Hello, I am a full stack developer with over 10 years of experience in web and mobile development. I have strong hands-on knowledge in ReactJS, NodeJs, MongoDB, ExpressJs, VueJs, Angular.Js, Bootstrap, React Native, Flutter, AWS, Git, Docker, Linux administration, WordPress CMS, Shopify, Backend development, Firebase, and SEO, among others. I am confident that I can help you achieve your goals and look forward to the possibility of working together. Let's quick chat to discuss the project in more details. With Regards, Abhishek Saini
€1.200 EUR en 10 días
6,3
6,3

Hello, With over a decade's worth of experience in mobile app development and software solutions, our team at Our Software is well-equipped to deliver the prototypes for all versions of your voice chatbot and chatbot with photorealistic avatar. We've got advanced competency in Android, having developed numerous apps for the platform with impressive success. Not only are we conversant with the platforms and technologies you have outlined (from Google Speech-to-Text to AWS Lambda), but we've also successfully dealt with similar voice and chatbot projects in the past. We know how to incorporate different API technologies, blend them into a unified interface, and develop intuitive user experiences–all pivotal aspects of your project. Ultimately, we understand that time is of essence–especially in a fast-paced environment as yours. That's why we give your project the utmost priority. Our comprehensive familiarity with your desired deliverables, extensive command on the relevant technologies, and a commitment to timely delivery make us an ideal choice for your voice chatbot and photorealistic avatar project. Let's turn your vision into reality! Thanks!
€850 EUR en 6 días
6,3
6,3

Hi As an experienced developer with specialized skills in AI chatbot development and mobile app development using technologies like Flutter, I am convinced that I'm the ideal freelancer for your project. My rich understanding of Backend systems such as Node.js, Django and PHP among others, as well as proficiency with Figma and Photoshop, translates into my ability to integrate the best APIs seamlessly into your system. Whether it's Option A or Option B we'll be working on, my creativity combined with technical expertise allows me to deliver functional prototypes with excellent user experiences within short timelines. In regards to Option A, I have solid experience in integrating platforms like Google Cloud, Azure and AWS into applications just like you require. Additionally, my familiarity with APIs such as Google Speech-to-Text, Amazon Transcribe and Whisper API (OpenAI) shows I'm well-versed in the tools needed for your project. Moving over to Option B, my portfolio showcases successful project delivery incorporating photorealistic Avatars in Android apps. With my sound knowledge of Heygen API and D-ID API (preferably with real-time streaming) which are required here; I promise a demo prototype that surpasses your expectations in both functionality and aesthetic design. Thanks....
€1.500 EUR en 7 días
6,3
6,3

This sounds like something I’d genuinely enjoy building. Creating a polished voice chatbot, whether with or without a photorealistic avatar, requires an intuitive approach to integrate various AI components seamlessly. I have substantial experience in mobile app development and AI chatbot solutions, consistently delivering practical and measurable results. Happy to outline how I would turn this plan into a working solution. Chat soon, Anne S
€1.050 EUR en 7 días
6,0
6,0

Hello! We are excited about the opportunity to create a voice chatbot tailored to your specific needs, whether it be a straightforward voice interface or an advanced photorealistic avatar experience. With strong expertise in Android development and integration of cutting-edge AI technologies such as STT, LLM, and TTS, we are well-equipped to deliver a high-quality prototype within your desired timeline. Our team is adept at working with various platforms, including Google Cloud, AWS, and Azure, ensuring a seamless experience for each version you envisage. Could you share any specific user interaction scenarios you have in mind that might influence the chatbot's design or functionality? Additionally, are there any particular preferences for the app's user interface or backend structure that would align with your existing systems? We look forward to discussing your project in greater detail and tailoring our approach to perfectly suit your vision.
€900 EUR en 15 días
5,8
5,8

Alges, Portugal
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Miembro desde sept 26, 2017
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