# Audio Noise Reducer — yeezhan.com > One-time pay-per-task emergency tool to make your file ready for submission. > No credits, no balance. One payment unlocks one task result, valid for 24 hours. Tool domain: https://audio-noise-reduce.yeezhan.com Skill definition: https://audio-noise-reduce.yeezhan.com/skill/SKILL.md API documentation: https://audio-noise-reduce.yeezhan.com/api/docs ## What this tool does Remove steady background hiss, fan and hum from recordings — FFT denoising, no subscription required. ## Typical user problems - AI denoisers want a subscription; audacity plugins want manual noise prints. Band-limiting to the speech range plus FFT denoising strips steady hiss, fan rumble and mains hum automatically — pick a strength, get a clean track. ## Parameters - strength: number (range 1-100%), required. 降噪强度 ## Pricing - Watermarked preview: free, no login required - Final clean output: $0.99 one-time per task - Require login (email/phone OTP) to complete payment - Result available for download 24 hours after payment ## Limitations - Max 200 MB