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We have a working n8n workflow that generates 24-second vertical marketing videos using [login to view URL], Google Gemini agents, ElevenLabs, and Cloudinary. A full technical audit has already been completed — the problems are identified and documented. We need an experienced n8n specialist with hands-on knowledge of AI video generation APIs to implement the fixes. The audit identified the following issues: Bridge frame captured at wrong timestamp causing repeated frames at splice points between segments Sanitisation function corrupting the negative prompt constraints No character anchor — character identity only carried as free text, causing drift between segments Image-to-video model treating reference frame as starting frame instead of identity reference 3 independent audio tracks per segment causing voice inconsistency QA gates never inspecting real prompts or real video output No background music or CTA step in the workflow Broken retry paths and dead logging nodes What a good fix looks like: Character appearance stays consistent across all 3 video segments No freeze or repeated frames at the 8s and 16s transition points Single consistent voice across the full 24-second video Background music present from start to finish CTA visible at the end of every video Workflow runs end-to-end without manual intervention Tech stack: n8n Cloud, [login to view URL] (VEO 3.1 / WAN 2.6 / Seedance 2.0), Google Gemini, ElevenLabs, Cloudinary, Google Drive (knowledge bases)
Project ID: 40615357
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Active 6 days ago
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95 freelancers are bidding on average €398 EUR for this job

Hello, I see where the issues are in your n8n workflow. My plan is to go through the whole process step by step, fixing the flow logic and auditing the existing setup. I’ll focus on stabilizing the video merges and syncing the audio to make sure everything plays smoothly without any hiccups. I've done similar work before, and by tightening up the triggers and refining the JSON, we managed to eliminate playback errors and ensure that the voice-over stayed consistent, which really made a difference for that client. To get a clearer picture, can you tell me what specific errors you've been seeing during playback? Also, how critical is the timing of the CTA for your project? Ramandeep K.
€424 EUR in 4 days
7.7
7.7

Hi, I can help fix and stabilize this n8n video flow. The issues you described point to a mix of node data-mapping, merge/render logic, and timing problems between the video/audio steps, so this needs proper debugging rather than surface-level patching. I can review the current workflow JSON, supporting scripts, webhook/queue handling, and make sure the full run completes cleanly without retries. I’ve worked on automation troubleshooting like this and can make the flow more reliable end to end.
€450 EUR in 7 days
5.8
5.8

Hello, I have reviewed the details of your project regarding fixing the n8n video flow, and I am confident that I can provide the necessary expertise to address the issues you are facing. With my experience in workflow optimization and script development, I am well-equipped to revise the flow logic, conduct a thorough audit, and implement any necessary adjustments to ensure seamless video processing. I have successfully handled similar projects in the past, focusing on enhancing workflow efficiency and eliminating errors. My portfolio includes successful implementations of video processing solutions that have significantly improved performance and stability. I am committed to maintaining open communication throughout the project and providing regular updates on progress. I am available for daily updates and feedback sessions to ensure that the project aligns with your expectations. I am eager to collaborate with you on this project and deliver a solution that meets your requirements. Please feel free to reach out with any questions or additional details. Best regards, Istkhar
€250 EUR in 7 days
5.8
5.8

Being a part of A4Logic, I assure you that our 5.0 rating, 97% project completion, and our long-standing success in technical problem-solving make us the team to trust. For your specific project, we understand there is a crucial need for your video workflow to be seamless, reliable and error-free. My expertise in JSON coupled with our team's strength in web and software development will ensure the meticulous revision of your n8n flow. At A4Logic, we value clear communication and practical recommendations which is why we will conduct a comprehensive audit to identify any flaws from fetching assets to rendering files. We appreciate the importance of your videos lining up perfectly with consistent voice-over tone and timing, as well as an uninterrupted CTA appearance. In addition to fixing the current issues plaguing your workflow, we have extensive experience with API integrations and can optimize webhook triggers as required. Our goal is to meet all defined acceptance criteria precisely - rendering your videos without any errors, while maintaining flawless data synchronization, an impeccable voice-over alignment even after video merging and a seamless end-to-end process without any manual retries. Look no further for a long-term partner committed to providing support even post-launch – A4Logic is at your service
€350 EUR in 5 days
5.2
5.2

I propose a comprehensive solution to optimize your n8n video creation workflow by conducting an audit, revising flow logic, and enhancing webhook triggers. I will focus on streamlining asset fetching, audio alignment, clip merging, and rendering for flawless output. With expertise in automation, API integration, and node systems, I will address playback errors, data-sync issues, and voice-over inconsistencies. By tightening queue handling, optimizing data sync, and ensuring stable merging and rendering, I will deliver a seamless end-to-end process without manual interventions. Let's collaborate to create a reliable, efficient, and scalable video generation system.
€675 EUR in 5 days
5.2
5.2

Hi, I understand you need an experienced n8n specialist to fix issues in your video generation workflow. I will implement the necessary changes to ensure consistent character appearance, eliminate repeated frames, and maintain a single voice throughout the video. You will receive a fully functional workflow that runs smoothly without manual intervention. I recognize the importance of having a seamless video output with background music and clear CTAs, and I will address all identified issues from the audit. What specific timeline do you have in mind for these fixes? Services I offer: • n8n workflow optimization • AI video generation API integration • Quality assurance testing • Background music integration • Workflow automation Thanks for considering my proposal. I look forward to discussing this further.
€250 EUR in 3 days
5.4
5.4

I'd love to help you revise your n8n workflow that's currently experiencing playback errors, data-sync hiccups, and workflow interruptions. As a seasoned freelancer with expertise in video editing, motion graphics, and creative problem-solving, I'm confident I can help you stabilize the flow. Given my strengths in video production, JSON processing, API integration, and script writing, I believe I can provide the necessary insights to optimize your workflow. To address the issues, I'll work closely with you to: * Audit the existing flow logic * Optimize webhook triggers and queue handling * Rewrite parts of the JSON as needed * Implement supporting scripts for seamless video merging and data-syncing I'll focus on ensuring that all clips render without error, voice-over is consistent, CTA appears and remains interactive, and the workflow completes end-to-end on the first run. My goal is to get your workflow running smoothly with minimal manual retries required. Let's work together to resolve these issues! Would you like to discuss this project further?
€250 EUR in 1 day
5.7
5.7

Hi, I can build your professional 8-page corporate WordPress website with a mobile-first design, HubSpot CRM form integration, WhatsApp button, blog setup, GA4 tracking, and complete account handover. I have experience creating business websites with clean UI, responsive layouts, and CRM integrations. I can deliver within 2 weeks and work within your $350 budget with milestone-based delivery. Please feel free to message me to discuss the project further. I’d be happy to share samples of my previous work in the chat. Thanks and regards, Mohsin
€500 EUR in 4 days
4.2
4.2

Hi, this is Kris from McKinney, Texas. I've reviewed your project requirements and understand the key challenges you are facing with the current n8n video workflow. It seems like there are persistent video playback errors, data-sync issues between nodes, voice-over inconsistencies, and interruptions during the merging process. My approach to this project would involve revising the flow logic, conducting a thorough audit, and potentially enhancing the webhook triggers and queue handling to ensure smooth operation. I would also focus on optimizing the merging process and ensuring the voice-over remains consistent throughout the video. A few additional questions: Q1: Are there any specific preferences or requirements for the final output format? Q2: Do you have a preferred method for testing the revised workflow before implementation? Q3: Is there a deadline for completing this project? Best regards, Kris Kramer
€250 EUR in 3 days
3.8
3.8

With deep expertise in API integration and workflow automation, I am well equipped to tackle the challenges your n8n project faces head-on. I understand that the video flow is crucial for your business and can't afford errors or interruptions. As a seasoned developer, I've worked across industries with international clients on multifaceted projects. This has honed my skills in ensuring all parts of a system-sync together smoothly, which is especially crucial for a video workflow. Additionally, my knowledge and experience with technologies like n8n, Node.js, and AI automation give me unique insights into addressing the issues you're encountering. Not only will I review and optimize the existing workflow logic, but I will also perform a comprehensive audit of the system to identify any potential weak points. Moreover, my skills in languages such as Python and JavaScript will allow me to craft custom scripts specific to your needs to better streamline the process. Ultimately, I am not just offering a quick fix - rather, I am committed to building a stable infrastructure for your long-term business growth. In choosing me for this project, you'll have a dedicated partner focused on delivering high-impact digital products optimized for lasting success. Let's talk more about how we can roll out an effective and error-free video flow for your business today!
€250 EUR in 3 days
3.4
3.4

Hello, As a result of a detailed review of your project requirements, I fully understand that you need the existing n8n video workflow stabilised from asset fetching through final rendering and delivery. I have experience with n8n workflow automation, API integration, JSON logic, video processing, audio synchronisation, and supporting scripts, and I’m available to start right away. The main challenge is keeping clip, audio, and metadata references perfectly aligned while three different generation services return assets at different speeds and formats. I will revise the node logic, validate payloads between steps, improve queue and retry handling, and standardise the merge process using FFmpeg or the current rendering layer. I will also normalise voice-over volume and timing, prevent frame freezes during concatenation, and ensure the CTA is applied for the correct duration without disappearing. I will test the complete workflow with multiple three-clip runs and document any JSON, webhook, or script changes made. A couple of quick questions: • Where is the final video currently rendered and stored? • Can you share the exported n8n workflow JSON and recent execution logs? I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Best regards, Carlos
€250 EUR in 7 days
3.6
3.6

I'm Ammar Ahmed Malik, and my track record of building production-ready systems is the perfect match for your n8n video flow project. Over the past six years, I've tackled complex API integrations and developed workflows that have successfully automated repetitive tasks. This includes using platforms like n8n, which are geared towards enhancing efficiency in data handling and integration. In reviewing your project description, I'm confident in my ability to address every one of your pain points. Be it fixing playback errors, improving data syncing between nodes, or ensuring consistent voice-over quality throughout the clips' merging process. My understanding of the JSON language coupled with my experience in web application development will allow me to optimize webhook triggers and tighten queue handling for enhanced stability. Beyond solving these immediate issues, what sets me apart is my mindset for long-term efficiency. I build robust systems that continue to run reliably even as your project grows. Client satisfaction is at the core of my work ethic - by choosing me for this project, you're not just getting a temporary fix but an enduring solution that empowers your team and saves time and resources. Let's make this workflow a seamless experience!
€250 EUR in 2 days
3.3
3.3

Having reviewed your n8n workflow issue, I’m ready to put my extensive experience in full-stack development and AI solutions into resolving the problem for you. Given my specialization in building scalable, high-performing software, I will conduct a thorough audit of your current flow logic and the relevant scripts, making necessary optimizations where needed to significantly improve stability and performance. I am well-versed in languages like Python and Json, which will be crucial for tightening queue handling and rewriting parts of the JSON that may be causing interruptions. My strong background in system architecture means I deeply grasp how to ensure data remains completely synchronized between nodes - a solution critical for you. What sets me apart is my ability to consider the entire development lifecycle and foresee issues before they occur - from product planning all the way to long-term maintenance. This approach ensures not only a seamless initial flow but also smooth continuous workflow with minimal or no manual retries necessary. Choosing me guarantees 100% error-free clips rendering, voice-over that is consistently aligned and clear, zero visual freezes during merging, an uninterrupted CTA display, and full end-to-end perfection on the first run. Experience quality, reliability, and scale; hire me today.
€500 EUR in 7 days
3.4
3.4

Yes, I can help stabilize and optimize your n8n workflow so it runs reliably from asset generation through final video delivery. Based on your description, the issues appear to involve workflow orchestration, node synchronization, queue handling, media processing, and error recovery rather than a single failing component. I will review the existing workflow JSON and supporting scripts, identify the root causes of playback errors, synchronization issues, voice-over drift, and CTA rendering problems, then optimize the execution logic. This includes improving webhook handling, refining data flow between nodes, strengthening error handling, and ensuring media assets remain correctly aligned throughout the pipeline. My goal is to deliver a workflow that renders consistently on the first run, merges all three videos seamlessly, maintains synchronized audio, and produces a stable final output without manual intervention. I am available to start immediately and can provide clear updates throughout the debugging process.
€500 EUR in 7 days
3.1
3.1

Hi, I appreciate the detailed technical audit you've completed for your n8n workflow and the opportunity to contribute my expertise in AI video generation APIs to implement the necessary fixes. Based on my review of your workflow, I understand the key issues that require attention: - The bridge frame capture timestamp is incorrect, resulting in repeated frames at splice points. - The sanitisation function is corrupting the negative prompt constraints. - There's no character anchor, causing character identity drift between segments. - The image-to-video model is treating the reference frame as the starting frame instead of an identity reference. - There are three independent audio tracks per segment. To address these issues, I will follow a structured approach that involves refining the workflow configuration, implementing timestamp adjustments or frame rate changes for the bridge frame capture, modifying the sanitisation function to preserve negative prompt constraints, introducing a character anchor to maintain consistent character identity, configuring the image-to-video model to use the correct reference frame, and optimizing audio processing for seamless integration of the three independent audio tracks. With my experience in developing similar workflows and integrating AI video generation APIs, I am confident that I can efficiently address these issues and deliver a stable, high-quality solution. I will provide regular progress updates and ensure that all changes are thoroughly tested and validated before deployment. To clarify the scope and requirements, I have a few questions: - Are there any specific performance or quality metrics you'd like me to aim for? - Are there any additional APIs or services you'd like me to integrate into the workflow? Best Regards, Anil Prajapati
€410 EUR in 3 days
3.1
3.1

Hey , I just went through the project description, and I see you are looking for someone experienced in Video Production, API Integration, n8n, Audio Editing, Video Editing, Video Processing, Script Writing, JSON, Video Services and Workflow Automation. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Regards, Ali .
€250 EUR in 4 days
2.6
2.6

Hi, I can help stabilize and optimize your n8n workflow to ensure reliable end-to-end execution without playback errors, sync issues, or failed merges. I will review the existing workflow, optimize the node logic, webhooks, and queue handling, and update any supporting scripts to ensure smooth video generation, audio synchronization, seamless three-clip merging, and a consistent CTA in the final output. I can help with: • n8n workflow debugging and optimization • Webhook and data synchronization fixes • Reliable video merge and rendering pipeline • Voice-over timing and consistency improvements • End-to-end testing for stable, first-run execution My goal is to deliver a robust workflow that runs reliably without manual intervention. Best Regards, Akif K
€250 EUR in 7 days
2.0
2.0

As a top 1% ranked software engineer and a Tech Savvy Virtual Assistant, I bring to the table the breadth and depth of experience you need for this project. My skills not only include mastery of n8n, but a deep understanding of AI video generation APIs. This means I am adept at quickly identifying, troubleshooting and fixing complex technical issues - your project's needs will be no exception. I have successfully employed my n8n skills in many projects, always ensuring that workflow runs end-to-end without manual intervention. Your project's specific challenges were clear in your description – character appearance consistency, splice point issues etc. - let me assure you, these are familiar territories to me. Trust that if given the opportunity, I will not only deliver on the fixes you need but also improve your entire workflow. My commitment to efficient and reliable solutions resonates with yours for a seamless marketing video generation process. Your project deserves my expertise, let me show you how solid results are achieved in the most effective way possible.
€500 EUR in 7 days
2.2
2.2

Hello, "Optimized n8n Video Merge Flow" - persistent playback errors and sync issues. I will rewrite the merge node using FFmpeg concat demuxer and add explicit timestamp checks, which prevents freezes when three clips are combined. I previously automated a similar video workflow for Reolink backup: https://www.freelancer.com/projects/automation/Automate-Reolink-Video-Backup-Script/reviews To keep voice‑over consistent I’ll apply loudness normalization and align audio tracks with the video timeline, eliminating drift in volume and timing. Which n8n version are you using and do you have admin access to the server? Looking forward to working with you. Artur Giżycki
€425 EUR in 6 days
1.0
1.0

⭐⭐⭐⭐⭐ Hello, I can troubleshoot and optimize your n8n workflow to eliminate playback errors, data synchronization issues, failed merges, and voice-over timing problems. I have extensive experience with n8n, webhook automation, JSON workflows, API integrations, and media processing pipelines, and I'll ensure the entire workflow runs reliably from asset generation through final rendering. I'll optimize the workflow logic, queue handling, and supporting scripts to deliver stable, error-free execution with seamless video merging, synchronized audio, and a consistent CTA. I'm ready to get started immediately and look forward to helping you stabilize your automation.
€400 EUR in 1 day
0.8
0.8

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