Articles tagged “acoustic design”
33 articles covering acoustic design in acoustic engineering and building design.
AcousPlan vs Excel Spreadsheets: Why 89% of Architects Abandon the Spreadsheet
Honest comparison of AcousPlan and Excel spreadsheets for RT60 calculation. Excel is familiar and flexible, but formula errors, missing material data, and zero compliance automation cost architects time and money.
AcousPlan vs Sarooma: Material Database & Design Tools Compared
Side-by-side comparison of AcousPlan and Sarooma for material database depth, RT60 calculation, compliance checking, and acoustic design workflow. Find which free acoustic tool fits your practice.
The Architect's Guide to Hiring an Acoustic Consultant
When to hire an acoustic consultant, how to evaluate credentials, typical fee structures, scope of services, and a decision flowchart for architects navigating acoustic compliance.
Sound Insulation vs Sound Absorption: Different Problems, Different Solutions
Understand why sound insulation (blocking noise between rooms) and sound absorption (controlling echo within a room) require completely different materials and strategies.
What is Echo? (And How It Differs from Reverberation)
An echo is a distinct, delayed repetition of a sound caused by reflection from a distant surface. Learn the 50 ms threshold, how echoes form, and how acoustic design prevents them.
What is an NC Rating?
NC (Noise Criteria) is an octave-band rating system for background noise in buildings. Learn how NC curves work, how to read them, target values by room type, and how NC relates to NR and RC.
What is Noise? (Wanted vs Unwanted Sound)
Noise is unwanted sound that interferes with communication, concentration, or comfort. Learn how noise is measured, classified, and controlled in building acoustic design.
What is Sound Diffraction?
Sound diffraction is the bending of sound waves around obstacles and through openings. Learn how diffraction affects noise barriers, room acoustics, and building design.
What is Sound Reflection?
Sound reflection occurs when sound waves bounce off a surface. Learn how reflection creates reverberation, flutter echoes, and standing waves — and how to control it in room design.
What is Sound Wavelength?
Sound wavelength is the physical distance between consecutive pressure peaks in a sound wave. Learn how wavelength relates to frequency, why it determines acoustic behaviour, and its role in design.
Acoustic Design for Mental Health — How Noise Impacts Wellbeing | AcousPlan
Evidence linking noise to cortisol, anxiety, and cognitive load. Design strategies for healthcare, education, and workplace environments. WHO evidence base.
Library Acoustic Design — Quiet Zones, Study Areas & NC Targets | AcousPlan
Library acoustic design guide: zoning strategy for silent, quiet, and active areas, NC targets per zone, treatment specifications, and sound masking for open-plan reading areas.
Call Center Acoustics: How Background Noise Costs $15,000 Per Employee in Turnover
Call centers typically measure 65–75 dBA. That noise drives speech errors, fatigue, and turnover costing $15,000 per agent. Here's the acoustic case for intervention.
Concert Hall RT60 Design: 1,800-Seat Auditorium Worked Example
Design an 1,800-seat concert hall for RT60 2.0 s (occupied). Full octave-band Sabine calculation, audience absorption, occupied vs unoccupied comparison, and EDT estimation.
Courtroom Acoustics — When Justice Depends on Whether the Jury Hears | AcousPlan
UK MoJ requires STI ≥ 0.75 in courtrooms. Historic courtroom Sabine calculation shows RT60 1.94s. Seating and carpet treatment path to compliance.
Coworking Acoustics — Why Phone Booths Are a Symptom, Not a Solution | AcousPlan
Phone booths treat 2% of floor area while 98% stays noisy. ISO 3382-3 D2,S analysis shows ceiling treatment + masking outperforms booths 3:1 on cost.
Elbphilharmonie Hamburg: 10 Years From Disaster to Acoustic Masterpiece
The Elbphilharmonie took 10 years and cost €789 million. Here's the acoustic engineering story behind its 10,000 CNC-milled panels and 2.1s RT60 achievement.
Flanking Transmission — Why Your STC 60 Wall Performs Like STC 35 | AcousPlan
Flanking paths through floors, ceilings, and ducts reduce a lab STC 60 wall to field FSTC 35. ISO 15712 prediction method with 5 flanking path examples.
Open Plan Office Acoustics — 5 Design Failures That Guarantee Complaints | AcousPlan
Open plan offices fail because of 5 specific design decisions. ISO 3382-3 D2,S data proves it. Learn the fixes with real before/after measurements.
Swimming Pool Acoustics — The Hardest Room in Architecture to Fix | AcousPlan
Natatorium theoretical RT60 reaches 12.8s. Moisture-resistant treatment comparison (PET vs metal vs fiberglass). Emergency PA STI ≥ 0.45 requirement.
Mosque Acoustics Design Guide — RT60, STI, and the Dome Problem
A complete guide to mosque acoustic design. Solve dome focusing, marble reflections, and PA system conflicts. With worked calculations per ISO 3382.
Do You Need an Acoustic Consultant, or Can Software Replace Them?
A practical guide comparing acoustic consultants and acoustic design software. Learn when you need professional expertise, when software is sufficient, and how the hybrid approach delivers the best results at the lowest cost.
Acoustic Consultant Fees: How Much Does Acoustic Design Cost in 2026?
Acoustic consultant fees range from £2,000 for a desktop study to £100,000+ for concert hall design. Here are the benchmarks by building type, fee structure, and what you get at each price point — with guidance on when software can supplement or replace consultant services.
The 8-Step Acoustic Design Process: From Brief to Handover
A complete guide to the acoustic design workflow: from understanding the brief through target selection, RT60 prediction, material specification, construction supervision, and post-completion testing per ISO 3382. Learn what happens at each stage, who is responsible, and what can go wrong.
How Much Does Acoustic Treatment Cost? A Room-by-Room Cost Guide for 2026
Acoustic treatment costs range from £800 for a small meeting room to £180,000 for a concert hall. Here is a room-type cost breakdown with material quantities, installation rates, and the calculation method behind every number — referenced to ICMS 3 cost coding.
How Much Does WELL Certification Cost? Breaking Down the Acoustic Component
Complete cost breakdown of WELL Building Standard v2 certification with detailed analysis of the acoustic component: Sound Mapping, Sound Masking, Sound Barriers, Sound Absorption, and Sound Reinforcement. Typical acoustic costs represent 15-30% of total WELL budget — here is how to optimize spend.
The Acoustic Design Process: From Brief to Handover in 8 Steps
Acoustic design follows a structured 8-step process: establish criteria, model the room, calculate the baseline, identify deficiencies, specify treatment, verify compliance, document, and measure post-construction. Here is each step explained with the specific deliverables and ISO references.
Noise Criteria Explained: NR, NC, and RC Curves — Which One Does Your Project Need?
NR (Noise Rating), NC (Noise Criteria), and RC (Room Criteria) all rate background noise levels in buildings — but they use different curves, different frequency ranges, and are required by different standards. Here is how each system works, when to use which, and the specific values your HVAC engineer needs to hit.
Room Acoustics Fundamentals: How Sound Behaves Inside a Room
Sound in a room does not simply travel from source to listener. It reflects off every surface, arrives at the listener hundreds of times with different delays, and creates a complex acoustic signature. Here are the fundamentals of room acoustics — from direct sound to late reflections to standing waves.
What Is RT60 — And Why It Determines Whether Your Room Sounds Good or Terrible
RT60 is the time it takes for sound to decay by 60dB after a source stops. Too long and speech blurs. Too short and rooms feel dead. Here is what RT60 means, why it matters for every room type, and the optimal targets that acoustic standards have established over 100 years of research.
Open Plan vs Enclosed Offices: The Acoustic Trade-offs That Determine Workplace Satisfaction
Open plan offices cost 40-60% less per desk but generate 3x more acoustic complaints. Enclosed offices provide speech privacy but reduce collaboration. Here is the acoustic comparison with STI measurements, distraction distance data, WELL compliance pathways, and the hybrid compromise that works.
BB93:2015 Complete Guide: UK School Acoustics Standard
Building Bulletin 93 (BB93:2015) sets the acoustic requirements for all school buildings in England and Wales. It specifies RT60 limits, background noise levels (BNL), and sound insulation — all mandatory under Building Regulations. Here is every requirement, room type, and compliance method.
Open Plan Office Acoustic Design: The Complete Guide (WELL v2 | BS 8233 | ISO 3382)
The definitive guide to open plan office acoustics covering WELL v2 Sound features, BS 8233 targets, ISO 3382-3 open plan parameters, sound masking, and the ABC rule. Includes worked examples, compliance checklists, and cost analysis for 200-2000m² floor plates.