vocal remove and karaoke maker

@softsolution2000

I have extensive experience in JavaScript, Python, Mobile App Development, HTML5, and Node.js, making me a perfect match for the "vocal remove and karaoke maker" project. I am confident in my ability to deliver a high-quality, browser-based karaoke application that meets all your requirements. Once we discuss the full scope, we can adjust the budget accordingly. I am eager to start working on this project and showcase my skills. Please review my 15-year-old profile to see my previous work. Your satisfaction is my top priority, and I am willing to begin tasks upfront to demonstrate my dedication. Looking forward to discussing the job details with you.

@expertswriting45

Hello, I can build a browser-based karaoke web app that works smoothly on both desktop and mobile browsers. Users will be able to upload their own tracks, sing in real time, and receive a mixed recording of their vocals plus the backing track for download or sharing. Proposed Approach Front-end: React for a modern, responsive UI compatible with desktop and mobile Back-end: Node.js (Express) for handling uploads, processing, and serving recordings Audio processing: Web Audio API + MediaRecorder for real-time recording and mixing; FFmpeg on the server for final rendering and export to MP3/AAC Features: Upload audio tracks up to 10 MB Record vocals simultaneously with the track Automatic mixing and volume balancing Downloadable final mix in 128 kbps quality Deliverables 1. Fully functional web app deployed to a test URL 2. Clean, commented source code in Git repository or ZIP 3. Step-by-step deployment guide for moving to your own hosting Acceptance Criteria Smooth, low-latency recording with clear vocal/instrument balance Works on Chrome, Firefox, Safari, and mobile equivalents Users can complete the entire flow—upload, sing, download—within one session I have experience building real-time browser audio apps and can ensure the project is structured for future extensibility e.g., lyrics display or live streaming. I can also provide examples of similar projects on request.

@khurshid040462

Hi there! I’m excited about the opportunity to create a browser-based karaoke application that meets your specifications. With my experience in web development and audio processing, I am confident in delivering a seamless experience for users to upload their tracks, sing in real time, and download their recordings effortlessly. My approach would utilize a responsive front end with React or Vue, coupled with a Node.js back end to ensure low latency and high-quality output. I’ll provide a fully functional web app, complete with clean source code and a step-by-step deployment guide, ensuring your project is ready for hosting. With a focus on clear audio mix and user-friendly interface, this app will not only meet but exceed your requirements. Let me know your preferred tech stack and any similar projects you’ve worked on. Best regards,

@CodeAnchors

Roshan, I understand your need for a browser-based karaoke application for both desktop and mobile browsers, focusing on user-uploaded content with integrated recording capabilities. With extensive experience in Mobile App Development, JavaScript, Node.js, Web Development, Backend Development, and Vue.js, I am well-equipped to deliver reliable, long-term results. My approach includes understanding requirements, detailed planning, implementation using HTML5 and Python, rigorous testing, and continuous refinement. You can view my portfolio at ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Could you share more about your priorities for this project? Let's refine the scope together. Best regards, Muhammad Anas Khan

@zeljkoi6

Hi there, I’m excited about your karaoke application project! With my extensive experience building web-based audio solutions, I can create a smooth platform where users upload their tracks, sing, and receive high-quality mixes effortlessly. I propose using React for a responsive front-end, paired with Node.js on the back end, utilizing the Web Audio API for seamless recording. I can deliver a fully functional app within 7 days along with a comprehensive deployment guide.

@maksymh31

Hello, Roshan, I will build a responsive, browser-only karaoke app where users upload a track, press “Sing,” record microphone and backing in sync, and download a single mixed file. Approach: modern React frontend (or plain JS) with Web Audio API for precise scheduling and client-side mixing, MediaStream/MediaRecorder for simultaneous capture, and OfflineAudioContext (with optional server-side FFmpeg encoding) to produce 128 kbps+ MP3/AAC and automatic volume balancing. Low latency will be addressed via buffer preloading and audio scheduling; UI will include gain controls and a quick normalization pass. Plan to initialize a Git repo, deploy a staging URL, and implement upload → sync playback → recording → export. To start I need your preferred output codec (MP3 or AAC), hosting choice, and any sample tracks (I see one attached). Delivery: test URL, commented source, and deployment guide in ~10 days. Do you prefer a Node.js backend with FFmpeg for server-side encoding or a client-side mixing approach with serverless hosting (Vercel/Netlify), and which output format do you prefer: MP3 or AAC? Best regards,

@afsahfarooqui119

Greetings! I’ve reviewed your project and see that you’re looking for "A browser-based karaoke web app that lets users upload a track, sing along with real-time recording, mix vocals with the track, and download the final audio," and I’m genuinely excited to bring your vision to life. I’m a software engineer with over five years of experience in full-stack development and also a Web & Mobile App Trainer at Saylani Mass IT Training (International Trust), where I mentor and train aspiring developers. I build clean, responsive, and performance-driven websites and applications that not only look great but also function seamlessly. Let’s connect and create something impactful together! You can also check out my portfolio: freelancer.com/u/afsahfarooqui119 Best regards, Afsah Farooqui

@lpesicfl123

Hi, I have built web audio apps that combine Web Audio API recording, real time mixing, and server side processing with FFmpeg, delivering responsive React front ends and Node backends. Projects included user upload workflows, simultaneous track and mic capture, and export to high quality MP3 or AAC. Professional risks include browser audio API inconsistencies across mobile devices, low latency during simultaneous playback and recording, and reliable encoding within file size limits. I mitigate these with progressive enhancement, client side buffering, recording fallbacks, and server side mixing pipelines. I propose a React frontend using Web Audio API and MediaRecorder for client capture, a Node.js backend for server side mixing with FFmpeg, and cross browser testing. Deliverables include a deployed test URL, source repository, documentation, and a deployment guide. I am eager to build this karaoke web app and committed to delivering a performant, user friendly product that meets your acceptance criteria.

@draganm59

Hi Roshan L., How are you! I've carefully checked your requirements and really interested in this job. I'm a full stack Javascript developer working at large-scale apps as a lead developer with U.S. and European teams. I'm offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I'm well versed in React/Redux, Angular JS, VueJS, Node JS, Python, html/css as well as javascript and jquery. Simply, I have rich experienced in JavaScript, Python, Mobile App Development, HTML5, Node.js, Web Development, Backend Development, Frontend Development, Vue.js, Audio Processing as you enumrated. For more information about me, please refer to my portfolios. I am checking your attachment, I'll update you shortly... I'm ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details. Best Regards, Dragan M.

@RadoslavPompura

Hello, how are you? I am ready to build your browser‑based karaoke application, designed to run smoothly on both desktop and mobile browsers. The flow will allow users to upload their own track, press “Sing,” record vocals in real time, and instantly receive a mixed file to download or share. I will implement integrated recording using the Web Audio API, MediaRecorder, and FFmpeg, ensuring low latency, proper volume balancing, and output quality of at least 128 kbps MP3/AAC. The front end will be responsive and modern, built with React for clean UX, while the back end will use Node.js for lightweight processing and easy deployment. Deliverables include a fully functional web app deployed to a test URL, clean and commented source code in Git, and a step‑by‑step deployment guide. The app will support uploads up to 10 MB, refresh results instantly, and operate reliably across Chrome, Firefox, Safari, and mobile equivalents. With prior experience in audio‑driven web apps, I will also structure the codebase for extensibility, so features like lyrics display or streaming can be added later without disruption. Thanks.

@DigitalNightOwl8

Hello there Roshan L., Good afternoon! Already have something live to show you I am an expert mobile engineer with skills including JavaScript, Web Development, Node.js, Vue.js, Mobile App Development, HTML5, Frontend Development, Audio Processing, Backend Development and Python. I am checking your attachment, I'll update you shortly... Please contact me to discuss more about this project. Thanks & Regards

@craigd43

Hello, I can build your browser karaoke app so users upload a backing track, press sing, record mic + track in real time, and get a single mixed file to download or share. My recommended approach is a modern single page frontend in React that uses the Web Audio API to play the uploaded track and capture live microphone input, MediaRecorder to record streams in the browser, and an FFmpeg step (server or WebAssembly) to produce the final high quality MP3/AAC mix, normalize levels and export a single file. This gives low latency monitoring while ensuring a clean rendered file. I will also make the UI responsive so it works on desktop and mobile browsers (Chrome, Firefox, Safari). I deliver a deployed test URL, a Git repository with clean commented code, and step by step deployment instructions. Typical timeline is two to three weeks to reach the acceptance criteria you listed. Estimated budget for a solid production-ready version is two to four thousand US dollars depending on exact polishing and server choices. I can start after you confirm the preferred stack and whether you want server-side FFmpeg or an in-browser wasm build. If that sounds good I will prepare a short technical plan and a proposed milestone list.

@Climaxcodetech

Hello Roshan, I am excited about the opportunity to collaborate on your project 'vocal remove and karaoke maker'. With over ten years of solid experience in web and mobile app development, I am well-positioned to bring your vision to fruition. My focus is on understanding your unique requirements and delivering tailored solutions that drive tangible results. Clear and consistent communication is paramount to our success. I am committed to keeping you informed and involved throughout the project journey, ensuring we achieve our goals together. Let's talk to you about how I can contribute to your project's success.

@jonhw5

Hi there! What a fantastic and unique idea for a browser-based karaoke app! I love how clean and user-powered your flow is—no complications, just great music and fun. I can create a seamless web application that lets users upload, sing, and instantly download their mixed tracks, all in a fast, modern, and mobile-friendly interface. My approach will ensure low-latency audio, smooth simultaneous recording, and the high-quality mixing you need. I’ll use a combination of proven web technologies (like React for a sleek frontend and Node.js or Python for a lightweight backend) with expert integration of the Web Audio API and FFmpeg for flawless audio processing—all carefully documented and ready for hassle-free deployment. I also prioritize clean, scalable code for future features so your roadmap can grow with ease. Excited to hear more about your vision and get started! Best regards, Vitalii

@MuteXsolutions

Hi there, I can build your browser-based karaoke application with smooth recording and mixing functionality across desktop and mobile browsers. Users will be able to upload a track, sing along, and download the mixed recording seamlessly, with low latency and clear vocal/instrument balance. The interface will be modern, responsive, and error-free across Chrome, Firefox, Safari, and mobile browsers. You’ll get: Fully functional web app deployed to a test URL Integrated recording/mixing (user track + microphone) outputting 128 kbps MP3/AAC Clean, well-commented source code in a Git repo or ZIP Step-by-step deployment guide for easy hosting migration Responsive front-end (React or Vue) and lightweight back-end (Node.js or Python) Scalable structure for future enhancements like lyrics display or live streaming Ready to start once you share your hosting details and preferences for the stack.

@valeriial1

Hi I'll build the browser-only karaoke app with React (or Vue if you prefer) on the front end, using the Web Audio API + MediaRecorder for synchronized, low-latency playback and mic capture, and a lightweight Node.js/Express backend (with optional FFmpeg for server-side encoding/mixing) to ensure reliable 128 kbps MP3/AAC exports. To guarantee clean vocal/instrument balance and cross-browser reliability I’ll favor client-side mixing (minimizes latency and uploads), add volume normalization, buffering and fallback server-side mixing for devices that need it, and implement robust mobile buffering—I’ve shipped WebAudio/recording projects and audio tooling that solved sync, format and bitrate challenges in real-world apps Deliverables: a responsive web UI deployed to a test URL, commented source code (Git), and a step-by-step deployment guide; my preferred stack is React + Node.js (+ FFmpeg) but I can use Vue or a Python backend on request.

@nenadt1

Hi✋, I'm a full-stack developer specializing in audio web applications with experience building browser-based karaoke and vocal processing tools using Web Audio API and modern frameworks. ✨ Why I'm the perfect developer: ✔️ Web Audio Specialist – Experience with MediaRecorder, Web Audio API, and real-time audio mixing in the browser ✔️ Complete Karaoke Solution – Built similar tools for simultaneous track/mic recording with volume balancing ✔️ Cross-Platform Focus – Responsive React/Vue.js frontend with Node.js/Python backend for seamless desktop/mobile experience ✔️ Deployment Ready – Clean code, step-by-step deployment guide, and test URL delivery I'll build your browser karaoke app with low-latency recording, MP3/AAC output, and smooth upload-to-download workflow – no native apps needed. Let's create your online karaoke platform! Ready to discuss your preferred tech stack.

@mykolao4

Hey Mate Roshan L., Good afternoon! I am professional mobile coder with skills including HTML5, Python, Node.js, Audio Processing, Vue.js, JavaScript, Frontend Development, Web Development, Mobile App Development and Backend Development. I am checking your attachment, I'll update you shortly... Please contact me to discuss more regarding this project. Thank you

@tuanv37

Hi Roshan, I’ve read your brief for a browser-based karaoke maker and I’m confident I can deliver a responsive, cross-device app that lets users upload a track, sing in real time, and export a single mixed file with clean vocal balance. I’ve built web audio tools using the Web Audio API, MediaRecorder, and lightweight back-end stacks. My approach for your project: - Smooth upload (max 10 MB) and a modern UI (React, Vue, or vanilla JS). - Real-time merging of backing track and microphone with low latency and automatic level balancing. - In-browser recording that outputs a single MP3/AAC file at 128 kbps, with the final mix ready for download or sharing. - Clean, well-documented code, a test URL for you to review, and a deployment guide so you can host it easily. Deliverables: a fully functional web app deployed to a test URL, well-commented source code (repo or ZIP), and step-by-step deployment instructions to move to your hosting. Next steps: I can start immediately and share a working prototype within days, followed by a full MVP soon after. What hosting/deployment preferences do you have (e.g., Vercel/Netlify for frontend with a lightweight backend), and any constraints beyond the 128 kbps target for the final mix? Best regards, Ut