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AI Voice Synthesis & Dubbing Service Priced by the Second: Advertising and Course Materials Generate Around 20k RMB Monthly

Workflow: Filter orders daily from channels like Xianyu, Taobao, and Xiaohongshu. After confirming client copy, voice preferences,

AGENT

Key Fields

FIELD STAMPS

IndustryMarketing / Advertising

RegionChina

ScaleSME

ChannelOnline

🔧 Workflow

Filter orders daily from channels like Xianyu, Taobao, and Xiaohongshu. After confirming client copy, voice preferences, usage scenarios, and duration requirements, call the TTS API to batch-generate the initial audio. Use Audacity for noise reduction and adjustment before sending to clients for review. Deliver the final product after 1-2 free minor tweaks, with automatic per-second pricing and billing. Inputs include client order parameters (copy, voice, duration, scenario), and the output is the finished MP3 audio file.

🛠 Setup Requirements

Register on iFlytek Open Platform and KreadoAI to obtain API permissions. Master basic n8n low-code configuration or Python invocation skills, and spend 1-3 days setting up the ordering form, automated synthesis scripts, and automatic delivery pipeline. Register shops on Xianyu and Taobao with real-name authentication, and prepare 5-10 multi-scenario sample audios. The overall setup cycle takes about 1 week, and those without programming skills can use ready-made tools.

🧰 Toolchain

🔧 iFlytek Online Voice Synthesis API
🔧 KreadoAI Voice Cloning
🔧 n8n Automated Workflow
🔧 Audacity Audio Post-Production
🔧 Xianyu/Taobao Order Intake

💰 Revenue

① Per-second dubbing for SMBs and course vendors (Main revenue): Promotional voiceovers at 0.5-1 RMB/second, course narrations at 0.3-0.6 RMB/second. A single 60-second clip priced at 15-60 RMB × 15-20 clips/day × 22 days/month = 330-440 clips/month (estimated). The case study notes a monthly income of about 12k-26k RMB, though the exact revenue share of per-second dubbing is unspecified (case study figure, independently unverified); ② B2B Bulk Purchasing: Enterprises or brand owners place bundled orders. The case study mentions high-value B2B orders can exceed 30k RMB/month, though unit prices and volumes are unverified, and the B2B bundled share is not specified; ③ Custom Voice Commercial Licensing: Charging clients for voice licensing, referencing KreadoAI membership subscription at about 39 RMB/month (stated cost in case study), with unpublicized unit prices, unverified licensing counts, and unknown contribution share; ④ Opportunity Item - Audiobooks and Multi-cast Delivery per 10k Characters: Sources show Wanxiang Audio costs less than 8 RMB per 10k characters, while other mainstream AI tools generally cost 10-15 RMB/10k characters (public platform pricing). These can be resold at a markup, though the proportion of audiobook delivery in the total revenue pool is not stated.

💸 Cost

iFlytek TTS interface costs about 8 RMB per 10k characters; a single 60-second audio clip (approx. 300 characters) costs about 0.24 RMB. KreadoAI's free version supports 100 cloned audio clips per month, with membership subscriptions around 39 RMB/month for overages. n8n's free version and Audacity are open-source and free, bringing the total fixed monthly cost to about 50-100 RMB.

⏱ Time Investment

Dedicate 2-3 hours daily to processing orders, reviewing audio, and responding to inquiries. Once the automated pipeline is set up, daily operations can be compressed to under 1 hour, and weekend order volumes can increase by 30%-50%.

🚀 Getting Started

Step 1: Register accounts on iFlytek Open Platform and KreadoAI, using free quotas to generate 10 sample audios covering scenarios like promotional voiceovers, course narration, and novel reading. Step 2: Publish per-second dubbing services on Xianyu and Taobao, upload sample audios, and price slightly below the market average (e.g., 19.9 RMB for 60 seconds of audio) to attract initial clients. Step 3: Optimize the delivery process after completing 10 orders, integrating n8n to automate ordering, synthesis, and delivery, thereby reducing labor costs.

🔑 Keys to Success

✅ Voice library covers diverse scenarios with clear commercial licensing, lowering client decision-making costs
✅ Transparent per-second pricing, over 60% lower average order value than traditional minute-based dubbing services
✅ Binding B2B clients such as SMEs and course vendors to enhance order stability
✅ 24-hour delivery + 1 free minor adjustment to build service reputation

⚠️ 风险

⚠️ Compliance risks regarding commercial licensing for AI-generated audio; must present voice copyright authorization certificates to clients in advance
⚠️ TTS API providers adjusting pricing or free quotas, leading to increased costs
⚠️ Fierce competition in the low-end market may lead to price wars; need to lock in high-value B2B clients
⚠️ Rising client expectations for voice naturalness and emotional expression, requiring regular updates to the voice library and synthesis parameters

📌 Real Cases

📌 Dubbing Artifact official website (peiyinya.com) provides a one-stop online text-to-speech service. The pay-per-order model has proven market viability, with the platform accumulating over 100,000 users
📌 Wanxiang Audio platform launched a fully automated AI multi-cast audiobook creation service, with audio costing less than 8 RMB per 10k characters. Individual sellers can resell at a markup, forming a low-cost, high-margin monetization chain
📌 Xianyu individual seller 'AI Voice Express' focuses on per-second promotional dubbing services, pricing a single 60-second audio clip at 29.9 RMB, receiving over 1,800 orders per month, with a monthly income of about 54k RMB

Sources