All of the resources available on our site are free to download.

DISCLAIMER

JHBrandt Acoustic Designs takes reasonable steps to ensure that the details contained in the provided materials are accurate and up to date. We may amend, add, replace or remove materials without notice. John H. Brandt and its associates, will not be liable for any loss or damage arising directly or indirectly from the possession, publication or use of or reliance upon calculations obtained from the provided materials, or for incorrect completion or usage. We provide these materials in good faith without express or implied warranty.

Custom DIY Plans

CUSTOM DIY PORTABLE BOOTH PLANS

Exterior dimensions = 10′ 5 1/2″ X 8′ 1 1/2″ X 7′ 10 5/8″ (3187 mm X 2476 mm X 2404 mm)
Interior dimensions = 9′ 5″ X 7′ 1″ X 6′ 9 1/2″ (2870 mm X 2159 mm X 2070 mm)

When you order, please notate in the comments your email address. I will send you a folder link for all the documents.

You will receive access to a Dropbox folder containing no less than 335 documents, layouts, and photos. These drawings represent thousands of hours of my work – over 50 on these booth plans. The supporting docs are from my life’s work.

The floating floor isolates down to at least 48 Hz and is effective against rumble and structure-borne noise. The walls of this booth will have ‘at least’ STC-58. – much more if the room that this booth is in already has at least 30 dB isolation from the outside world.

— $100   order now!

67 pages of instructions!

https://www.paypal.me/JHBrandt/100

Articles

• Assess the Environment
• Absorption Coefficient (CONSTANT)
• PROPER SPEAKER – LISTENER ALIGNMENT EXAMPLE
• Sound-Proofing: The Quest
• Sound waves in Air and Fiber
• Broadband Absorption
• How To Find How Much Isolation You Need
• Room Acoustics Design And The Frequency-Power Spectrum
• Balanced Non-Environment Criteria
• Grounding, Wiring, & Zero Loop Area
• Noise_Susceptibility_in_Analog_and_Digital_Signal_Processing_Systems
• AES Ground Loops-Rest of Story – Whitlock-Fox – Generic Version
• Electronics Design Philosophy
• Recommendations For Surround Sound Production
• The Myth Of The Booth
• STC_MTC_OITC_RW
• How to build a studio-grade lapel mic
• AES TECHNICAL COUNCIL – Document AESTD1001.1.01-10
• Rec. ITU-R BS.1116-1 1 – RECOMMENDATION ITU-R BS.1116-1
• “Subjective assessment of audio quality” – EBU Technical Review Winter 1997 – Hoeg et al.

–

ARTICLES BY Ron Sauro – NWAA labs.com

• A_Comparison_of_the_Predicted_Absorption_…vs_Proposed_Absorption_Constant.pdf
• A_New_Way_of_Determining_the_Total_Absorption_of_Gypsumboard_Wall_Structures.pdf
• Absorption_Coefficient_Dead_or_Alive_2016.pdf
• Absorption_Coefficients_Pt 1.pdf
• Absorption_Coefficients_Pt 2.pdf
• Absorption_coefficients-part_1_IN09_091.pdf
• Absorption_coefficients-part_2_IN09_092.pdf
• Absorption-The_misunderstandings_about_…how_to_perform_these_measurements.pdf
• Diffusion,_When_phase_and_energy_…_2017_NOLA.pdf
• How-To_Guide_Making_Speaker_Measurements.pdf
• Measuring_Absorption,_Bad_Methods_and_Worse_Assumptions.pdf
• NWAA_Labs_WhitePaper.pdf

DRAWINGS!

• 104 Broadband 4″ (10 cm)
• 204 Broadband with Slats 4″ (10 cm)
• 106 Broadband 6″ (15 cm)
• 206 Broadband with Slats 6″ (15 cm)
• 108 Broadband 8″ (20 cm)
• 208 Broadband with Slats 8″ (20 cm)
• Building Studio Doors
• Prime_523_Two_Dimensional_Primitive_Root_Diffusors

We’ll be also releasing new articles in the blog section (under the articles category), make sure you check them out.

Please let us know if you have any comments or suggestions.

Tools

NEW Calculators!

• Control Room Mode Calculator (Metric)
• Control Room Mode Calculator (Imperial)
• Tracking Room Mode Calculator (Metric)
• Tracking Room Mode Calculator (Imperial)
• Reflections, Boundaries & Mass Calculator
• Absorption Coefficients
• Slat, Perf & Skill Saw Cut Slot Helmholtz Trap
• Quadratic Residue Diffusor Arrays

Other Tools:

• Porous Absorber Calculator, by Chris Whealy
• Various Acoustic Calculation Tools, by Chris Whealy

If you have found these resources helpful, please donate to help us continue our research. Thank you!

Other Resources

The following resources are a part of our reference library and are placed here for your information. Highly recommended.

Recommended Reading:

• Master Handbook of Acoustics, by F. Alton Everest
• Recording Studio Design, by Philip Newell
• Recording Spaces, by Philip Newell
• Home Recording Studio: Build It Like the Pros, 2d Edition, by Rod Gervais

If you really want to get technical:

• Acoustic Absorbers and Diffusers, by Trevor J. Cox & Peter D’Antonio
• Architectural Acoustics, by Marshall Long
• Springer Handbook of Acoustics, by Thomas Rossing

Articles on Studio Wiring:

• Theory and Construction of Mic “Splitters”, by Bill Whitlock
• Hum, Buzz, & Ground Loops: New Insights Into an Old Problem (AES), by Bill Whitlock
• Interconnection of Balanced and Unbalanced Equipment, by Bill Whitlock
• Design of High-Performance Balanced Audio Interfaces, by Bill Whitlock
• Understanding, Finding, & Eliminating Ground Loops in Audio & Video Systems, by Bill Whitlock
• A New and Important Audio Equipment Evaluation Criteria, by Philip Giddings
• Grounding Systems and Their Implementation, by Charles Atkinson & Philip Giddings
• Grounding and Shielding Audio Devices, by Stephen Macatee – Rane Corporation
• PIN 1 Revisited, by Jim Brown – Audio Systems Group, Inc.
• PIN 1 Revisited (part 2), by Jim Brown – Audio Systems Group, Inc.
• Power and Grounding for Audio and Video Systems, by Jim Brown – Audio Systems Group, Inc.
• Integrating Electronic Equipment and Power into Rack Enclosures, by Middle Atlantic Products
• Sound System Interconnection, by Rane Technical Staff
• The Benefits Of SurgeX Surge Suppression, by Neil A. Muncy

Miscellaneous Articles:

• Exposing Acoustical Myths, by RBDG
• (ir761) Gypsum Board Walls: Transmission Loss Data, by NRC-CNRC
• (ir586) Sound Transmission Loss Measurements Through 190 mm and 140 mm blocks with Added Drywall and Through Cavity Block Walls, by NRC-CNRC
• (ir811) Fire Resistance and Sound Insulation of Floors: Sound Transmission and Impact Insulation Data, by NRC-CNRC
• HVAC Acoustic Fundamentals, by McQuay International
• UFC Noise and Vibration Control