Free 3D room acoustics solver and acoustic treatment calculator
AI stem splitter that separates songs into vocals, drums, bass, guitar, piano and other instruments
Stage
Not given
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Founded
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Based in
HU
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Pricing model
Free
Freemium
Pricing
Not given
Free: 5 credits on sign-up (one song up to 5 minutes). Starter: $7.49 for 100 credits (about 25 songs of 4 minutes at 1 credit per minute). Studio: $44.99 for 750 credits (about 187 songs). Pro: $169.99 for 3,000 credits (about 750 songs). Most tools use 1 credit per minute; the 4-Stem Best Quality
Key features
3D room builder supporting odd-shaped rooms, sloped ceilings, and attic layouts
Real physics-based acoustic treatment recommendation
Material absorption modeling with coefficients from frontier research
Real product database with 175 products across 37 brands
Before-and-after frequency response and decay time visualization
Studio mode for production work alongside listening room workflow
Rapid analysis completing in 2-10 seconds for position searches and up to a minute for panel placement
Guest access without account signup for full analysis
Room design persistence with optional account creation
Split songs into 6 stems: vocals, drums, bass, guitar, piano and other instruments
Further split any part: drums into kick, snare, hi-hat, toms, ride and crash; vocals into lead and backing
Every-instrument split separates about 50 kinds of instruments
Works entirely in web browser, no installation needed
Support for MP3, WAV, M4A and FLAC files up to 10 minutes
Processing takes 1 to 3 minutes per song in the cloud
Download stems as 320 kbps MP3 files
Free MP3 to MIDI and Audio to MIDI conversion in browser
Songs and splits saved in account for 30 days then deleted automatically
What makes it different
Uses real room physics and first principles acoustics rather than generic rules
Optimizes for both speaker placement and listening position simultaneously
No account or sign-up required to design and analyze full systems
Handles complex room geometries including sloped ceilings and L-shaped layouts
Integrates real speaker and equipment products with audio system design
AI models trained on thousands of separated recordings for clean, remix-ready stems
One-time credit purchases that never expire, no subscription required
Free MIDI conversion using Spotify's open-source Basic Pitch model
Songs not used to train AI models, processed in the cloud with 30-day automatic deletion
roomtreatment.diy
Unmix Studio