VRASQA Alternative — Acoustic Compliance With a Larger Materials Database

5,678 acoustic materials from 115 manufacturers across 27 countries — that is the database behind AcousPlan's material selection engine. VRASQA, an automated acoustic optimization platform that has gained traction among European consultancies, works with a considerably smaller material set. The database size difference is not academic: when an architect in Melbourne needs mineral wool ceiling tiles that comply with NCC 2022 Section F5 and are available from local distributors, the tool with Australian brands in its database answers the question. The tool without them forces the architect back to manual catalogue searches.

This article compares VRASQA and AcousPlan across the dimensions that matter for practical acoustic design: automation capability, materials coverage, compliance reporting, and cost.

What VRASQA Does

VRASQA (Virtual Room Acoustic System for Quality Assessment) is a cloud-based acoustic optimization platform developed in Europe. It entered the market around 2022, targeting acoustic consultancies and architectural firms that need automated RT60 compliance checking with material recommendation.

Core Capabilities

Automated RT60 optimization: VRASQA's primary feature is algorithmic selection of surface treatments to meet a target reverberation time. Users define room geometry, specify existing surface finishes, set a target RT60, and the engine recommends treatment configurations that achieve the target. This iterative optimization — varying material types, coverage areas, and placement across surfaces — is the feature that distinguishes VRASQA from basic RT60 calculators.

Statistical calculation: Like most compliance-focused acoustic tools, VRASQA uses statistical methods (Sabine and Eyring equations per ISO 3382-2:2008) rather than geometric ray tracing. This is appropriate for the rectangular and L-shaped rooms that constitute most compliance work.

Cloud platform: VRASQA runs in a web browser with no desktop installation required. Projects are stored in the cloud. Results can be shared via URL.

Report export: VRASQA generates compliance reports showing RT60 predictions, material specifications, and standard compliance status.

VRASQA's Pricing

VRASQA uses a subscription-based pricing model. Published pricing varies by source, but typical ranges reported by users are:

• Basic tier: €50-80/month (limited room types, basic reports)
• Professional tier: €120-180/month (full room types, PDF reports)
• Enterprise: Custom pricing (API access, white-label reports)

Feature Comparison: VRASQA vs AcousPlan

Materials Database: Why Size Matters

The materials database is not a vanity metric. It directly affects three practical outcomes:

1. Brand-Specific Specification

When an architect writes an acoustic treatment specification, they need manufacturer product names, not generic descriptions. "40 mm mineral wool ceiling tile" is not a specification — "Rockfon Blanka Activity A24, 40 mm, NRC 0.85" is. A larger database means more manufacturer-specific products available for specification without leaving the tool.

AcousPlan's 115 brands include:

• Global: Rockfon, Ecophon, Armstrong, Knauf, OWA, Baux, Autex
• North American: CertainTeed, Auralex, Primacoustic, GIK Acoustics
• European: Barrisol, Troldtekt, Akuart, Acousticork, Texaa
• Asia-Pacific: Daiken, CSR Hebel, BGC, Boral
• Specialty: RPG Diffusor Systems, Vicoustic, Artnovion, Sonex

2. Absorption Coefficient Accuracy

Generic absorption data (e.g., "mineral wool, 50 mm") provides approximate coefficients. Manufacturer-tested data from ISO 354:2003 measurements is product-specific and varies significantly even within the same material category:

The NRC ranges from 0.70 to 0.90 across these products, all nominally "mineral wool ceiling tiles." Using a generic coefficient instead of product-specific data introduces up to 0.20 NRC error — enough to shift an RT60 prediction by 15-20% and potentially flip a compliance result from pass to fail.

3. Cost and Carbon Comparison

AcousPlan includes ICMS-based cost data ($/m²) and EN 15804 EPD carbon data (CO₂e/m²) for its materials. This enables side-by-side comparison of acoustic performance, project cost, and environmental impact. VRASQA's material data focuses on absorption coefficients, with limited or no cost and carbon information.

Worked Example: 60 m² Conference Room

Room: 8 m × 7.5 m × 3 m (V = 180 m³). Current finishes: exposed concrete ceiling, glazed wall (one 7.5 m side), painted plaster (three walls), carpet floor. Target: WELL v2 Feature 74 compliance (RT60 ≤ 0.60 s).

Step 1: Baseline RT60

Using the Sabine equation (ISO 3382-2:2008 §A.1):

RT60 = 0.161 × 180 / 21.29 = 1.36 s — significantly above the 0.60 s target.

Step 2: Auto-Solve Comparison

AcousPlan auto-solve: The engine iterates through the 5,678-material database, testing ceiling treatment options that achieve the 0.60 s target. It returns three ranked recommendations:

1. Ecophon Focus Ds (α₅₀₀ = 0.95): RT60 = 0.36 s, cost €42/m², carbon 3.8 kg CO₂e/m²
2. Rockfon Blanka A24 (α₅₀₀ = 0.90): RT60 = 0.39 s, cost €38/m², carbon 4.2 kg CO₂e/m²
3. Armstrong Optima (α₅₀₀ = 0.95): RT60 = 0.36 s, cost €45/m², carbon 3.5 kg CO₂e/m²

VRASQA optimization: The engine searches its smaller database and recommends treatment configurations. Results typically include 1-2 material options (limited by database coverage) without cost or carbon data. The architect gets a technically valid solution but less comparative information for design decisions.

Step 3: Documentation

AcousPlan: Click "Generate Report" → branded PDF showing room parameters, baseline RT60, treatment specification (manufacturer, product, area, NRC), compliance status against WELL v2 Feature 74 with clause reference, cost estimate, and carbon impact. The report is ready for submission to the WELL assessor.

VRASQA: Export PDF showing RT60 prediction and material recommendation. WELL compliance status may require manual annotation. Cost and carbon data not included.

Automation Comparison: How Each Tool Optimizes

Both VRASQA and AcousPlan offer automated material optimization, but the implementations differ:

VRASQA's Approach

VRASQA uses algorithmic optimization that varies surface treatments to meet a target RT60. The algorithm considers:

• Material type (from its database)
• Treatment area (percentage of each surface)
• Frequency-weighted performance

AcousPlan's Approach

AcousPlan's auto-solve engine runs up to 50 iterations, testing materials from the 5,678-entry database. The algorithm:

1. Identifies the surface with the lowest average absorption coefficient
2. Tests high-performance materials on that surface
3. Checks whether the target RT60 is achieved
4. If not, moves to the next surface
5. Returns ranked solutions by performance, cost, and carbon

Practical Difference

The auto-solve outcome depends directly on the material database. With 5,678 materials, AcousPlan evaluates approximately 28× more options than VRASQA's database of ~200-400 materials. This larger search space produces:

• More brand-specific recommendations (architect can specify exact products)
• Better cost optimization (more price points to compare)
• Lower-carbon alternatives (more EPD-verified products in the database)
• Regional relevance (products available in the architect's market)

Compliance Coverage: Standards Supported

The practical value of an acoustic compliance tool depends on which standards it checks against. Architectural acoustic work spans multiple national codes:

AcousPlan's five-country compliance engine covers the markets where most English-speaking and European acoustic compliance work occurs. VRASQA's compliance checking is focused primarily on European standards (DIN 4109 partial support), with limited coverage of UK, Australian, and US codes.

For a consultancy working across multiple markets — UK offices, Australian schools, US healthcare facilities — the broader compliance coverage eliminates manual standard lookup for each project.

Sound Insulation: A Differentiating Capability

VRASQA focuses exclusively on room acoustics (absorption, RT60, reverberation). AcousPlan additionally provides sound insulation calculation:

• 52 pre-defined wall and floor assemblies with STC and Rw ratings
• Frequency-dependent transmission loss across six octave bands
• Compliance checking against IBC §1207 (STC 50 minimum), BB93 (party wall DnT,w), and DIN 4109 (Rw requirements)

When to Choose VRASQA

VRASQA is a reasonable choice when:

• Your primary market is Central Europe (where VRASQA's material database has strongest coverage)
• You value automated optimization as the primary workflow feature
• Your projects do not require WELL, BB93, NCC, or ANSI S12.60 compliance
• Sound insulation is outside your scope
• You prefer a tool focused narrowly on RT60 optimization without additional features

When to Choose AcousPlan

AcousPlan is the stronger choice when:

• You work across multiple national markets (UK, Germany, Australia, France, US)
• Brand-specific material specification is important for your projects
• Cost and carbon data influence material selection decisions
• WELL v2 Feature 74 compliance is a frequent project requirement
• Both room acoustics and sound insulation are in your scope
• You need a free tier for preliminary assessments before committing budget
• AI-assisted design and diagnostic tools add value to your workflow
• Your projects span building types (offices, schools, healthcare, hospitality, residential)

Related Reading

• Best Acoustic Design Software 2026 — comprehensive market overview
• Free Acoustic Software Comparison — comparison of no-cost tools
• Sabine vs Eyring: When to Use Each — choosing the right RT60 equation