One Master - Stem-aware AI mastering — Spotify-ready in 10 seconds

> Hey Product Hunt 👋 > >I'm Mil — independent musician. I built OneMaster because I was tired of two bad options for indie artists: > >*1)* Pay a studio engineer $200-500 and wait 3 days > *2)* Use a free AI tool and get a squashed, lifeless master with no personality > >Existing AI mastering tools take your full mix as a single file and run a generic chain. They can't tell vocals from drums — so they over-compress the vocal trying to control the kick, and you end up with that classic "pumped" sound that ruins the track. > >*OneMaster works differently.* You upload beat and vocals as separate channels. Each gets its own DSP treatment — de-essing + presence boost on vocals, HPF + low-mono prep + glue comp on beats — and THEN they're summed and run through a 3-pass loudness chain tuned for Spotify/Apple/Tidal delivery specs. The result sounds like it actually went through a mastering studio, because the chain is the same one. > >A few things I'm proud of: > >• *10 seconds* from upload to delivery > • *5 free 25-second previews* per account — try before you pay, zero card > • *3 free revisions* on every paid master — try different characters, different LUFS targets, no extra credits > • *Transparent pricing*: 100 credits = 1 minute, never expires. $15 for a single, $62 for an EP, $141 for a full album > >This is the tool I wished existed when I was uploading my first song. Now it does. > >Try it free at *onemaster.ai* — would love to hear what you think. Especially open to feedback from other producers on the chain quality and the stem-aware approach 🙏