Free 3D room acoustics solver and acoustic treatment calculator
Stage
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Founded
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Based in
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HU
Pricing model
Freemium
Free
Pricing
Free tier: up to 3 splits per day for files up to 2 minutes and 50 MB. Paid credits: Starter $4.90 (20 minutes), Plus $9.90 (50 minutes), Pro $19.00 (120 minutes). Credits never expire and are billed per minute used (rounded up).
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Key features
No signup required for free tier
In-browser stem preview before downloading
Supports MP3, WAV, M4A, and AAC formats
Automatic file deletion after approximately one hour
Usage metered fairly by processing time
Demucs htdemucs AI model for source separation
Privacy-minded with no account library
Free tier up to 2 minutes with 3 daily splits per IP
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
What makes it different
No account or signup required to remove vocals
Vocal and instrumental stems remain perfectly aligned for easy switching
Fast processing with no desktop installation or configuration needed
Truly free tier with no hidden checkout or trial card required
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
Get Vocal Remover
roomtreatment.diy