Soundproofing a Room — Did It Work?
🔊 The Moment of Truth
In the original soundproofing video — Landon's most-watched video ever with over 1.2 million views — he walked through the entire process of building a soundproofed room inside his basement. The materials, the construction, the theory behind why it should work.
But did it actually work? This follow-up video answers that question with real sound tests recorded from both inside and outside the room, with guitar playing at volume. No guessing, no approximations — just honest before-and-after audio evidence.
With 331K views, this is one of the most-watched soundproofing result videos on YouTube — because people who build these rooms desperately want to know if the effort is worth it.
🏗️ What Was Built
Before diving into the results, here's a quick recap of what went into the soundproofed room. The full build is covered in the original soundproofing article.
Room Within a Room
The fundamental principle — building a completely separate inner room that doesn't share framing with the outer walls. This breaks the path that sound vibrations travel through structure.
Roxul Safe 'N Sound Insulation
Mineral wool insulation — denser and more rigid than fiberglass, specifically designed for sound reduction. Doesn't compress, doesn't absorb moisture, and is fire resistant.
Solid Core Door + Weatherstripping
A Safe 'N Sound solid core door replaces a hollow interior door. Combined with proper weatherstripping, this seals the biggest single point of sound leakage in any room.
Double-Layer Drywall
Additional mass in the walls significantly reduces sound transmission. More mass = more resistance for sound waves to push through.
Resilient Channels
Metal channels that decouple the drywall from the studs, preventing sound vibrations from travelling directly through the wall structure.
Acoustic Caulk
Every gap, seam, and penetration sealed. Sound finds the path of least resistance — any gap, no matter how small, becomes a sound leak.
🎧 The Sound Test Results
🎸 From Inside the Room
Playing guitar at a reasonable volume inside the soundproofed room. The room has good acoustic treatment — sound is controlled and doesn't build up with excessive reverb or flutter echo. It genuinely feels like a proper practice space.
🚪 From Outside the Room
With the door closed and standing just outside the soundproofed room, the guitar volume is dramatically reduced. Not completely silent — true soundproofing is essentially impossible in a home DIY context — but reduced to a level that's genuinely liveable for the rest of the household.
The soundproofing build genuinely reduces sound transmission to a practical and liveable level. Guitar at volume becomes a low murmur outside the room. It's not a professional studio — you can still hear that something is happening — but it's enough to practice freely without disturbing the rest of the house. For a DIY basement build, that's a genuine success. The key lessons: the solid core door and weatherstripping matter as much as the walls, and any gap you leave becomes a sound leak.
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#landonbaileyyt · soundproofing · home studio · DIY · sound test · noise reduction
