Soundproof Your Studio

About Soundproof Your Studio

I teach you how to build a soundproof studio. Even if you know nothing about soundproofing or construction I go in depth to turn you from a total beginner into a soundproofing master.

Publisher

Wilson Harwood

Category

education

Language

en

Explicit

No

First episode

11 Apr 2022

Latest episode

26 Oct 2026

Latest episodes

243 episodes in the feed.

1. 

   26 Oct 2026

   How Much Does It Cost to Build a Soundproof Room? (2027)

   SOUND ISOLATION DESIGN · SPYS DESIGNS Two Rooms, Same Size, Very Different Price Tags Almost every conversation about the cost of a sound isolated room starts with the same question: how much per square foot? It is a reasonable place to start, and it is also the reason so many early budgets miss. Square footage tells you how much room you are building. It does not tell you how hard that room has to work, where it lives, or how much of the building has to change to support it. In the video behind this article, I ran three rooms through our budget calculator, one at a time, so you can see exactly which choices move the number and which ones barely do. You can follow along with your own room at soundproofyourstudio.com/calculator. What the Calculator Actually Uses The calculator is built around the two inputs that matter most at the budgeting stage: how big the room is, and whether it sits inside an existing building or stands on its own outside. Those two answers get you a realistic range quickly, which is what you need before you hire anyone or draw anything. It is a budgeting tool, not a design. It cannot see your joists, your mechanical system, or your neighbors. What it can do is keep you from planning around a number that was never real. Room One: A Small Vocal or Podcast Room Inside the House A small room inside an existing building is the simplest case. The structure, the roof, and the utilities already exist, so the budget goes into the room itself. That makes it the cleanest baseline. Enter the dimensions, read the total, and then change one input at a time to see what moves it. Room Two: A Drum Room A drum room is a larger footprint, and larger rooms cost more in ways that are easy to underestimate, because there are more walls, more ceiling, and more air to condition. It is also a far louder source than a voice, which is one more reason to treat the calculator result for a room like this as a starting point rather than a finish line. Compare the two results, and then ask what the larger room is asking of its walls, its ceiling, and its air handling. The difference in size is only part of the story. Room Three: The Same Studio in the Backyard Now move the same studio outside. A room inside a house borrows the building around it. A backyard studio has to bring its own: foundation, structure, roof, weather barrier, power, and a way to keep the air comfortable. Flip that one input in the calculator and the new total tells the story. The room did not change, but what it takes to build it did. This is where many backyard plans go sideways. People price the interior they imagine and forget that they are really pricing a small building. Square footage tells you how much room you are building. It does not tell you how hard the room has to work. A Word About Multi-Room Studios The calculator can accept a larger square footage for a multi-room studio, but it was not built to give you an accurate result for two or three rooms. Dividing the space adds walls, and every added wall adds materials. The HVAC system also becomes far more complex, because rooms that need to stay isolated from each other cannot simply share ductwork. If you are planning a multi-room studio, add a serious buffer to whatever number the calculator gives you. When the Budget Is Too Low for the Goal Sometimes the honest answer is that a budget and a goal do not match. If your number comes in under what the room requires, the worst move is to build a lesser version of the same plan and hope. Sound isolation behaves more like a switch than a dial, and a room that is almost there is often still audible. The better moves are to lower the goal, change where the room lives, phase the build in a sensible order, or wait until the budget can carry the plan. Any of those is a better outcome than spending real money on a room that cannot do its job. What Guessing Costs A guessed budget feels cheaper right up until it meets reality. The expensive surprises are rework after the walls are closed, HVAC retrofits for a room that was never designed to breathe, and a finished room that misses the isolation goal. Each of those costs more than the planning that would have prevented it. A $10,000 design fee that surfaces a $75,000 scope gap before construction starts is not an expense. It is the best money spent on the entire project. That is the thinking behind the calculator, and behind how we approach every room at SPYS Designs: get an honest number first, then decide with clear eyes. READY TO SEE YOUR NUMBER? Run your room through the budget calculator and see where your number lands before you spend anything. soundproofyourstudio.com/calculator (https://soundproofyourstudio.com/calculator?utm_source=podcast&utm_medium=audio&utm_campaign=room-cost-calculator-2026-10&utm_content=show-notes)

2. 

   19 Oct 2026

   Why Soundproof Windows Don’t Belong on the Outside of Your House

   SOUND ISOLATION DESIGN · SPYS DESIGNS The Most Realistic Sound Isolated Room Beats the Best Possible One I came to sound isolation as a working musician who taught himself acoustics. I had no background in construction besides some hands-on experience for a year building my own studio with my contractor. I really didn't understand how the whole design and construction industry worked as a system. I also didn't realize that I was entering a system that had been around for decades and had a lot of embedded dynamics. It took me a while to realize that I needed to adapt my textbook soundproofing designs to work more seamlessly with the systems that were built around safety, code compliance, energy efficiency, and the contractor's workflow for their own efficiency on the job site. What follows is that specific realization through the lens of specifying an exterior window on a soundproof room and how a simple exterior window can become a massive design problem when it comes to sound isolation. Construction already runs on a system A contractor wants to buy a window online, have it delivered, and install it the way the manufacturer says to install it. A code office wants a label on that window, an NFRC rated U-factor, so it can check the thermal performance of the building envelope. Anything that does not fit that path adds questions, risk, and labor. A custom window asks the contractor to become a fabricator, and asks the code office to accept something it has no way to verify. Labor is the real cost of construction Buying a standard item saves money and saves labor. Most people do not realize that labor is the real cost of construction, and it is the number that moves a budget more than any single material. There is a second issue that has nothing to do with money. Even with a great set of plans, many clients worry that their contractor will not want to build a custom window, or will not be able to. That worry is reasonable. A design that depends on someone choosing to fabricate something unusual is a fragile design. The best possible sound isolated room and the most realistic one are not always the same room. What an exterior window actually has to do An exterior window is part of the building envelope, and code evaluates it that way. Soundproof Windows Inc. builds its windows for interior use, and the manufacturer is clear that they are not intended for exterior applications. In lab testing, a two leaf configuration with 5/8 inch glass and 8 inches between the leaves tested at STC 64 and OITC 53. That performance comes from the mass and the air space working together inside the building. Standard exterior windows are a different product with a different job. Marvin publishes STC and OITC ratings for its Ultimate Direct Glaze units in its Architectural Detail Manual, and the laminated glass entries list STC in the mid 30s and OITC around 30. One caution applies to any manufacturer: confirm that the exact glass makeup you want also carries the NFRC rating, because a performance table and a label do not always describe the same configuration. Patching into the system This is why the design uses two windows in one wall. The exterior leaf is a standard, code compliant window that the contractor can order online and install per the manufacturer manual. The interior leaf is where the sound isolation lives, with a deliberate air space between the two. On one recent project that cavity measured about 11 inches. The exterior leaf satisfies the thermal value needed to pass codes and is designed to be used on the exterior of a building. The interior leaf delivers the sound isolation performance. To be clear, both windows are needed to create optimum sound isolation, but the interior leaf is the specialty sound isolation product. On the plans, the window schedule carries a basis of design note, and the manufacturer, glazing, and rough openings are verified by the contractor and dealer before anything is ordered. Design for the room that gets built None of this lowers the standard. It moves the standard to where it can be met. A room that performs on paper and cannot be built performs at nothing. A room designed to fit the way construction already works gets built the way it was drawn. That is the discipline behind everything we do at SPYS Designs: start with the best possible room, then do the work of making it the most realistic one. Planning a room that has to perform at this level? Book a Sound Isolation Site Assessment and we will walk through your project, your constraints, and what it will take to build the room you are picturing. soundproofyourstudio.com/plan (https://soundproofyourstudio.com/plan?utm_source=podcast&utm_medium=audio&utm_campaign=exterior-wi)

3. 

   12 Oct 2026

   Before You Build A Backyard Studio With A Kitchen And Bath, Listen to this.

   SOUND ISOLATION DESIGN · SPYS DESIGNS Sound Isolation in a Detached ADU: Two Projects, Two Different Paths By Wilson Harwood, Sound Isolation Designer and Principal of SPYS Designs Two clients came to me with nearly the same idea. Each wanted a detached building in the backyard with a high-performance sound isolated studio, a kitchen, and a bathroom. In other words, each wanted a detached accessory dwelling unit, usually called an ADU, that also happens to hold a room where they can create music. They approached it very differently, and the differences are useful if you are thinking about something similar. One project is a lesson in a single hard problem, a window that has to open. The other is a lesson in timing, designing everything now and building only part of it. Both are a lesson in how much the team around the sound isolation designer matters. Why a kitchen and a bath change the problem A studio by itself is a room with a door. Add a kitchen and a bathroom and it becomes a second structure on your property with different code implications and build complexity. Plumbing, drain lines, exhaust fans, more electrical load, and more heating and cooling all arrive at once. From the legal side of things, most jurisdictions have specific rules for buildings where someone could live versus a building just for work or hobbies. There is an investment side to this as well. In many markets, a fully functional unit appeals to a wider group of future buyers than a studio alone, and a growing number of states and cities have been loosening their ADU rules, which is part of why more people are building them. The details vary a great deal by state and by city, so check your own local rules before assuming anything. My scope matters here, so I will state it plainly. I designed the sound isolation envelope and the systems that support it. I did not design the kitchen or the bath, and I do not replace the people who handle codes, structure, and permits. Both of these projects worked because someone capable owned all of that. A sound isolated room wants to be sealed. Code wants a way out. Client A: the window that has to open Client A needed an operable window for egress. Egress rules exist so a person can get out of a room in an emergency, and they are enforced locally, so the exact requirements depend on your jurisdiction. The trouble is obvious once you say it out loud. Everything else in the wall can be built as a sealed, massive assembly, but the one component that has to open is the weakest point in it. Client A, exterior elevation showing the location of the egress window. The solution was two windows doing two different jobs. On the outside, the building uses a window selected to meet the local code requirement for hurricane conditions. That window handles weather and the building code, and it does not have to be an acoustic product. On the inside, I specified an operable sound isolation window from Soundproof Windows Inc. That window handles the acoustic job. Because there is an air space between the two, they behave as a separated system instead of one thin barrier, which is the same principle the rest of the isolation envelope relies on. Client A, isolation plan. The studio sits inside its own isolated volume, with the kitchen and comfort room in the service area beside it. Neither window had to compromise to do the other's job, and I think that is the real lesson. When two requirements collide, it is often cleaner and cheaper to give each one its own component than to look for a single product that does both. Client A, building section. A heavy exterior wall, an air gap, and an independently framed interior wall and ceiling. The architect on Client A's team Client A hired an architect. An architect is not necessary unless local law requires one, so I never treat that as a given, but on this project it was a real asset. The architect handled local codes and structural engineering, designed the front porch, and took over every part of the building that had nothing to do with sound isolation and everything to do with good design judgment. That freed me to stay focused on the isolation design, and the result is a building that reads as a considered piece of architecture instead of a sound room with a kitchen attached. Client B: design it now, build it later Client B took a different path and made a decision I respect. The whole building is being designed now, kitchen and bath included, but only the studio is being built in the first phase. The kitchen and bath will be built later, from drawings that are already finished. That does two things. It lowers the budget needed on the front end, and it avoids a redesign down the road. The part that deserves care is what has to be decided now so the later work does not damage the isolation. Where the wet wall sits, how the drain lines will route, where the penetrations will go, the path for exhaust, and the capacity for electrical and HVAC all need answers on paper today, because they are cheap to settle in a drawing and expensive to fix in a finished room. Client B, floor plan. The kitchenette and toilet sit in a service strip beside the studio. I will also be honest about what is not settled. Whether a phase one building is treated as a dwelling unit, and how phasing affects permitting, depends on the local jurisdiction, and it should be confirmed with the local building department. I would rather say that than pretend the answer is universal. Client B, exterior elevation. Someone has to own everything that is not sound isolation. It matters less who it is than that it is someone. The design-build firm on Client B's team Client B hired a design-build firm, and it has been invaluable. The firm pulled together the engineering, the local code work, and the design of the kitchen and the bath. Just as important, they are local. When we had a question about permits or code along the way, there was someone close to the project who knew how that jurisdiction actually works. That is knowledge I cannot supply from Nashville, and it let me stay focused on the isolation design. Client B, interior section looking east. What the two plans share Put the two floor plans side by side and the same move shows up. In both, the kitchen and the bath sit in a service area beside the studio instead of inside it. Keeping the wet zone outside the isolated volume means plumbing and drain lines do not have to cross the walls that matter most, and it is part of what makes a phased approach realistic for Client B. The team structures were different, and neither is better. An architect worked well for one project and a design-build firm worked well for the other. The right answer depends on the project and the local rules. Before you break ground Decide how the room will be used. The isolation targets follow from that decision, and everything else follows from the targets. Decide who owns codes, engineering, and permits. It could be an architect, a design-build firm, or another arrangement, but someone has to own it. Bring in a sound isolation designer while changes are still cheap, before the plans are finalized. Planning a room that has to perform? If you are planning a detached building that needs to perform at this level, the first step is a Sound Isolation Site Assessment. It is how we figure out what your project actually requires before anyone commits to a design. soundproofyourstudio.com/plan (https://www.soundproofyourstudio.com/plan?utm_source=podcast&utm_medium=audio&utm_campaign=adu-two-projects-2026-10&utm_content=show-notes)

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