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We have already developed and fully tested a Windows C# Advanced Speech Analysis (ASA) engine that includes: Offline Speech-to-Text (Whisper-based) Phoneme-level analysis (Wav2Vec2 CTC) Pronunciation scoring (CTC forced alignment) Accent strength scoring (WavLM embedding model) Fully working evaluation pipeline The system works correctly on Windows using C# + AI models. We now require an experienced mobile developer to: Convert this engine into a production-ready Unity SDK for Android and iOS. This includes native model execution and Unity integration. Scope of Work The developer will: Create Native Mobile Inference Layer Android Build native .so library (NDK) Integrate: ONNX Runtime (for phoneme model) [login to view URL] (for STT) TorchScript WavLM model (accent) ARM64 support required iOS Build static .a library or XCFramework CoreML optional (if beneficial) ARM64 support required Model Integration We will provide: whisper model (ggml format) Phoneme CTC model (ONNX INT8) Accent model (TorchScript) Reference embedding bank Vocabulary file Developer must: Load models efficiently Run inference offline Optimize memory usage Ensure stable performance Unity SDK Wrapper Create a clean Unity C# interface: Example API: ASAResult Analyze( float[] audioPCM16k, string expectedWord, string expectedIPA ); Return structured result: { "stt_text": "volleyball", "stt_match": true, "pronunciation_score": 82, "accent_score": 74, "phonemes": [ { "ipa": "v", "score": 90 }, { "ipa": "ɒ", "score": 65 } ] } Unity plugin must support: Android (AAR) iOS (Xcode project / xcframework) Thread-safe inference Non-blocking calls Functional Requirements 1. Offline Only No cloud calls No external APIs 2. Performance Targets Model load time: < 2 seconds Per utterance (1–3 sec audio): Total latency < 1.5 seconds Memory under reasonable mobile limits 3. Audio Input 16kHz mono PCM float Silence trimming (VAD optional but recommended) 4. Scoring Logic (Already Designed) Pipeline: Whisper STT → check expected word If match → run phoneme forced alignment Compute per‑phoneme scores Compute overall pronunciation score Compute accent similarity score Return structured result Developer does NOT need to redesign scoring logic. Deliverables Android .so library iOS .a or .xcframework Unity wrapper Example Unity demo scene Build documentation Performance test report Required Skills C++ (strong) Android NDK iOS native development Unity native plugin development ONNX Runtime mobile Experience with [login to view URL] Experience with TorchScript / LibTorch Audio DSP basics Preferred: Experience with on-device ML optimization Experience with quantized models Budget & Timeline Timeline: 2 weeks Fixed price or milestone-based Must deliver stable SDK, not prototype
Projektin tunnus (ID): 40252719
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83 freelancerit tarjoavat keskimäärin $1 055 USD tätä projektia

With over 10 years of experience in web and mobile development, I understand the importance of converting your Windows C# Advanced Speech Analysis engine into a production-ready Unity SDK for Android and iOS. Your project requirements align perfectly with my expertise in mobile development and AI integration. I have successfully delivered projects in the fintech and healthcare domains, showcasing my ability to meet complex requirements and deliver robust solutions. By leveraging my skills in C++, Android NDK, iOS native development, and Unity native plugin development, I am confident in creating the native mobile inference layer and Unity SDK wrapper that meet your specifications. I have experience with ONNX Runtime and TorchScript, which will be instrumental in optimizing memory usage and ensuring stable performance for your SDK. I am excited about the opportunity to work on this project with you. Let's discuss further how I can bring your Unity Offline Voice SDK Integration to life. Feel free to reach out to me here.
$1 200 USD 20 päivässä
7,1
7,1

Hello, I'm an experienced freelance developer with a strong background in C# and iOS development. My knowledge in these languages aligns perfectly with your need to convert the C# Advanced Speech Analysis engine into a production-ready Unity SDK for Android and iOS. I am also well versed in the Android NDK, Unity native plugin development, and have experience in using ONNX Runtime mobile rightly adding to my qualifications for this job's successful completion. In addition, my team's expertise stretches beyond pure code writing; we employ principles like performance tuning, optimization, and proper memory management to ensure stable and efficient applications; all of which aligns well with this particular project. Beyond that, we're well-networked across different engineering domains including Electrical, Mechanical, Civil etc., so we have a wide range of diverse perspectives on each project we undertake. Lastly, Live Expert's is known for producing strict professional work which we guarantee with this project also. We would provide the Android .so library, iOS .a or .xcframework files along with the relevant documentation and a performance test report. Our commitment is to transform your idea into reality while keeping our clients happy throughout, give us the opportunity to show you what we can do! Thanks!
$1 500 USD 1 päivässä
5,8
5,8

Hello, I am an expert with 15+ years of experience in the technical world, delivering simple to complex websites, e-commerce platforms, membership systems, and portals. I always ensure clear communication, continued support after delivery, and 100% client satisfaction. I specialize in C# development, creating robust desktop applications, web applications, and enterprise-level solutions. With expertise in .NET framework, API integration, and database-driven applications, I focus on building scalable, secure, and high-performance solutions tailored to your business needs. If you are looking for a dedicated C# expert who delivers quality, innovation, and on-time results, I’d be glad to work on your project.
$750 USD 7 päivässä
5,7
5,7

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, working with Unity, Android, and iOS development. My focus on clean architecture and scalable code ensures the project will run smoothly from start to finish. I understand the requirements of integrating a C# Advanced Speech Analysis engine into a production-ready Unity SDK, and I'm well-equipped to handle the native model execution as outlined in your scope. My approach includes: - Efficient model loading and offline inference - Building the necessary Android .so library and iOS .a or .xcframework - Creating a clean Unity C# interface that supports thread-safe inference and non-blocking calls. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: 1. What existing systems or frameworks do you currently use for deployment? What existing systems or frameworks do you currently use for deployment? Let’s discuss over chat! Regards, Arpit
$750 USD 21 päivässä
5,5
5,5

Hi there, Good evening I am Talha. I can work with your project skills Audio Processing, C# Programming, Unity, iOS Development and Android SDKI am excited to submit my proposal for your project, which focuses on a comprehensive project plan. To begin, we will thoroughly understand your project's objectives and requirements, ensuring alignment on scope and goals. We will provide a clear and realistic project timeline with manageable milestones to ensure timely completion. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$750 USD 13 päivässä
3,4
3,4

Greetings! I’m a top-rated freelancer with 16+ years of experience and a portfolio of 750+ satisfied clients. I specialize in delivering high-quality, professional unity offline voice ask integration services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival
$750 USD 14 päivässä
3,5
3,5

hi, I have reviewed the details of your project. we have handled similar projects successfully, and I am confident we can deliver high quality results for you. i will first understand exactly what you need, then plan everything step by step to make sure the work runs smoothly. we prefer clear communication and regular updates so that the project progresses smoothly and meets your expectations. let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in the chat to show relevant examples of our past work. looking forward to your response. Mughira
$1 125 USD 7 päivässä
3,4
3,4

Hi there, With over 10 years of experience in C# programming, I have successfully completed over 50 desktop/mobile applications and embedded software projects. I understand your requirement for converting the Windows C# Advanced Speech Analysis engine into a production-ready Unity SDK for Android and iOS. I am confident in my ability to create the necessary native mobile inference layers, integrate models efficiently, and develop a clean Unity C# interface for seamless functionality. I would love to connect with you in chat to discuss further details regarding your project and how I can provide a professional solution tailored to your needs. Thanks
$1 100 USD 7 päivässä
0,0
0,0

Hi , I’ve carefully reviewed your job post and it’s clear you’re looking for someone with solid experience in C# Programming, iOS Development, Android SDK, Unity and Audio Processing. This is exactly within my core expertise, and I’m confident I can deliver reliable, high-quality results. Rather than rushing into assumptions, I prefer to understand the project properly. I’d appreciate your clarification on a few points: Is the job description complete, or are there additional requirements or expectations? Do you already have any work completed, or will this be built entirely from scratch? Do you have a preferred timeline or deadline in mind? Why you can confidently work with me: Successfully completed 250+ major projects across different industries Maintained 100% positive feedback over the last 5–6 years Earned 100+ recent 5-star reviews, showing long-term client satisfaction I focus on clear communication, clean execution, and on-time delivery I work as a full-time freelancer and am available 9 AM – 9 PM (Eastern Time), ensuring fast responses and consistent progress. Due to client confidentiality, I share relevant work samples only in private chat. Let’s start a conversation so I can show you similar work and suggest the best approach for your project. Looking forward to working with you. Best regards, Arsalan Khan
$750 USD 5 päivässä
0,0
0,0

My skills align perfectly with your needs as an experienced mobile developer. I have worked on similar projects offsite and have 5 years of experience in C++, Android NDK, iOS native development, Unity plugin development, and ONNX Runtime. I've built systems that are fast, professional, and update-safe. I'll convert your Windows C# Advanced Speech Analysis engine into a Unity SDK for Android and iOS, ensuring efficient model loading, offline inference, and stable performance. Let's discuss how I can help you achieve a production-ready SDK. I’d love to chat about your project! Worst case, you get free advice that can guide your project. Regards, Keagan Keyser
$1 150 USD 14 päivässä
2,0
2,0

Hello, I am Vishal Maharaj, a seasoned professional with 20 years of expertise in C# Programming, iOS Development, Android SDK, and Unity. Having carefully reviewed your project requirements for the Unity Offline Voice SDK Integration, I am confident in my ability to convert the existing ASA engine into a production-ready Unity SDK for Android and iOS. To achieve this, I will create a Native Mobile Inference Layer for Android and iOS, integrating the necessary models efficiently, optimizing memory usage, and ensuring stable performance. Additionally, I will develop a clean Unity C# interface with the required functionality and support for Android and iOS platforms. I am eager to discuss the project further and provide a detailed plan for its successful completion. Please initiate a chat to explore how we can collaborate effectively. Cheers, Vishal Maharaj
$1 000 USD 10 päivässä
0,0
0,0

Hello, I went through your project description and it seems like I'm a great fit for this job. I'm a 10+ years of experienced full stack AI developer on C# Programming, iOS Development, Audio Processing, Android SDK, Unity Lets connect in chat so that We discuss further. Regards
$1 300 USD 7 päivässä
0,0
0,0

Hello With graceful enthusiasm, this project aligns perfectly with my expertise—I can deliver it flawlessly. I'm truly excited about the opportunity to collaborate with you. Let's chat for more details. Warm regards, Sophia
$1 125 USD 14 päivässä
0,0
0,0

Hey , I just finished reading the job description and I see you are looking for someone experienced in Android SDK, C# Programming, iOS Development, Unity and Audio Processing. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further.
$750 USD 1 päivässä
0,0
0,0

Hey Mate , Good morning! I am professional mobile programmer with skills including Android SDK, Audio Processing, C# Programming, Unity and iOS Development. "score" Please send a message to discuss more about this project. Eager to hear your feedback
$750 USD 2 päivässä
0,0
0,0

As a seasoned developer, my primary goal is to transform ideas into robust and practical systems, making me the perfect fit for your Unity Offline Voice SDK Integration project. I possess a diverse set of skills, including C++, Android NDK, iOS native development and Unity native plugin development, which are all competencies you require for this job. My knack for building clean solutions that scale with ease and support growth aligns perfectly with your requirements. I am experienced in creating non-blocking calls and thread-safe inference for mobile applications, making it possible to achieve your offline-only expectation. One of the reasons I stand out in this field is my ability to work with critical time constraints without compromising on quality. Your fixed timeline of two weeks isn’t far-fetched from projects I’ve completed satisfactorily before. In addition, I understand the need for absolute stability in an SDK rather than just a prototype and will do everything within my power to deliver exactly that. Although not mentioned as required skills, my audio DSP basics can be of great advantage to improving your existing pipeline further. And as an extra bonus, I am well-versed in strategic communication ensuring we're always on the same page during the project. By choosing me for this project, you’re opting for stability, experience, and a dedication to quality. Don't hesitate to reach out; let's actualize this exceptional innovation together!
$800 USD 15 päivässä
0,0
0,0

Integrating a pre-built Windows C# ASA engine into a mobile Unity environment is not a simple port—it's a multithreading architecture challenge. While others suggest 20+ day timelines to rebuild the inference layer, I will leverage your existing tested engine by constructing a high-performance managed DLL bridge. I focus specifically on the "Main Thread vs Background Worker" bottleneck. If you run Whisper/WavLM on the Unity main thread, the app will freeze. My solution ensures: 1. Asynchronous processing via a custom C# wrapper (using Native Plugins / NDK where necessary for Android/iOS). 2. Zero main-thread lag during phoneme-level and accent analysis. 3. Clean memory management between the ASA engine and Unity's heap. Because you already have the C# engine tested on Windows, I can deliver a working Unity SDK prototype for Android/iOS in just 3 days. Can you confirm if your current ASA engine relies on any Windows-only binaries (.dll) or if the source is fully portable .NET/C#?
$1 150 USD 3 päivässä
0,0
0,0

Hi , Your Android SDK, iOS Development, Audio Processing, Unity and C# Programming project stood out, it shows you value precision and real results. That’s exactly what I deliver. I don’t use templates. Every project has its own psychology, and success comes from understanding your intention before execution. Why clients choose me: Simplify complexity, deliver clarity. Creative data driven execution. Clear updates, early results. Work that makes you look great. My approach: Understand your vision. Build a focused action plan. Execute with full transparency. Portfolio: https://www.freelancer.com/u/muhammadfaizanh4 Each project shows results backed by strategy. Even a quick 5 minute chat can reveal how we’ll achieve measurable impact together. Let’s make your Android SDK, iOS Development, Audio Processing, Unity and C# Programming project remarkable. Faizan Your Trusted Partner in Smart Execution
$750 USD 2 päivässä
0,0
0,0

Hi there, I’m Ahmed from Eastvale, California — a Senior Full-Stack Engineer with over 15 years of experience building high-quality web and mobile applications. After reviewing your job posting, I’m confident that my background and skill set make me an excellent fit for your project — Unity Offline Voice SDK Integration . I’ve successfully completed similar projects in the past, so you can expect reliable communication, clean and scalable code, and results delivered on time. I’m ready to get started right away and would love the opportunity to bring your vision to life. Looking forward to working with you. Best regards, Ahmed Hassan
$1 250 USD 1 päivässä
0,0
0,0

Hey Mate , Good morning! I am professional mobile computer programmer with skills including C# Programming, Audio Processing, iOS Development, Unity and Android SDK. "score" Please contact me to discuss more about this project. Talk to you soon
$750 USD 6 päivässä
0,0
0,0

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