Soundproof Room Complaints: Vibration Truth for Musicians

“I spent over ¥1,000,000 ($6,667) on a soundproof room, but still got complaints from downstairs…”

This problem is surprisingly common in Japan, with numerous similar cases reported to soundproofing contractors and Q&A sites.

“Can hear the clarinet sound,” “Piano vibrations resonate,” “Footsteps are too loud” — Why do complaints occur even with soundproof rooms?

This article explains what sounds soundproof rooms can and cannot block, and the truth about vibration control that musicians must know, based on actual complaint cases in Japan.

Actual Complaint Cases: “Why Despite Soundproof Room?”

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Let’s examine real cases where complaints occurred despite installing soundproof rooms.

Case 1: Major Manufacturer Soundproof Room + Clarinet Practice → Downstairs Complaints

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Situation:

• 3rd floor apartment in Japanese mansion with manufacturer’s unit soundproof room (Dr-40)
• Clarinet practice (1-2 hours daily, 7-9 PM)
• Complaints about “can hear clarinet” from downstairs 2 weeks after installation

Surprising Points:

• Owner confused: “Why does sound leak with a soundproof room?”
• Catalog claimed “-40dB” sound insulation performance
• Only learned about “structure-borne sound” after consulting specialists

Case 2: Piano Soundproof Room → “Vibrations Resonate” Complaints

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Situation:

• 2nd floor RC (reinforced concrete) mansion with piano soundproof room (¥1,500,000 / $10,000)
• Digital piano practice caused downstairs complaints
• Posted on Q&A site: “Does it really resonate that much even with soundproofing?”

Surprising Points:

• Complaints came despite using digital piano
• Problem was keystroke “vibration,” not the sound (melody)
• Contractor said “this will be fine”

Case 3: Expensive Soundproofing Work Still Resulted in Complaints

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Situation:

• Major manufacturer soundproofing work (over ¥2,000,000 / $13,333)
• Started instrument practice after completion
• Downstairs complained about “thumping sounds”

Surprising Points:

• Failed despite hiring major manufacturer
• Catalog performance (○dB sound insulation) was for airborne sound only
• Insufficient floor vibration control discovered later

Common Issues:

1. Soundproof room catalog performance focuses on “airborne sound”
2. Structure-borne sound through floors requires separate measures
3. Even contractors sometimes don’t understand this

Sounds Soundproof Rooms Can and Cannot Block

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Why do complaints occur despite soundproof rooms? The reason lies in how sound travels.

Airborne Sound vs Structure-Borne Sound (Vibration)

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By Instrument: Sound Content Reaching Downstairs

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Important Truth:

• Soundproof room catalog performance (Dr-40, D-60, etc.) is for “airborne sound” insulation
• Structure-borne sound through floors reaches downstairs regardless of D-value
• Can block instrument “tone” but not “vibration”

Soundproof Room D-Value and Vibration Relationship

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Truth Contractors Don’t Tell You:

“Dr-40 is sufficient” “This soundproof room blocks everything”

→ This refers to airborne sound (tone). Cannot block structure-borne sound (vibration).

Why Sound Reaches Downstairs? Structure-Borne Sound Mechanism

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Scientific explanation of why downstairs complaints occur despite soundproof rooms.

Sound Transmission Methods: Airborne vs Structure-Borne

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Airborne Sound (Blocked by Soundproof Room):

1. Instrument tone vibrates air
2. Soundproof room walls/ceiling absorb and block vibration
3. Sound leaking outside significantly reduced

Structure-Borne Sound (Not Blocked by Soundproof Room):

1. Piano keystrokes, foot taps, pedal operation vibrate floor
2. Vibration travels: soundproof room floor → apartment floor slab → entire building structure
3. Vibration reaches: downstairs ceiling → downstairs room
4. Bypasses soundproof room walls, so D-value cannot prevent it

3 Loopholes Manufacturers Don’t Explain

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Top 3 Causes of Downstairs Complaints:

1. Floor Vibration (Structure-Borne Sound): ~70%
2. Leakage through Vents/Pipes: ~20%
3. Gaps/Construction Defects: ~10%

In other words, even with a soundproof room, downstairs complaint risk remains without “floor vibration control.”

Housing Type Greatly Changes Necessary Countermeasures

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Vibration control necessity for musical instrument practice varies greatly by housing type.

Apartments (2nd Floor and Above): Downstairs Consideration Most Important

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Harsh Reality in Japanese Apartments:

• Soundproof room alone insufficient
• Floor vibration control additional cost always necessary
• Even RC structures: vibrations transmit easily in older buildings or thin slabs
• Wooden apartments: high complaint risk despite any measures

Detached House 1st Floor/Basement: Most Advantageous Environment

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Merits of Detached House 1st Floor/Basement:

• Zero downstairs vibration
• Ground absorbs vibration
• Maximizes soundproof room effectiveness
• Almost no additional vibration control cost
• Acoustic drums also possible

Advice for Those Buying/Renting Houses:

To practice instruments without worry, intentionally choosing detached house 1st floor is the wisest choice.

Rather than installing soundproof room on apartment 3rd floor with vibration control, installing on detached house 1st floor is cheaper in total cost and more effective in most cases.

Importance of Advance Consideration: 90% Determined by Housing Choice

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Pre-Purchase Checklist to Avoid Regrets:

• If apartment, which floor? (1st floor ideal)
• What is slab thickness? (200mm+ desirable)
• Building age? (Newer has stronger structure)
• If detached house, which floor for installation? (1st floor/basement optimal)
• Neighbors’ tolerance for living sounds? (Check with advance greetings)

By Instrument: Cases Prone to Downstairs Complaints and Countermeasures

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Case 1: Piano (Most Consulted Instrument)

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Why Are Piano Downstairs Complaints Common?

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Piano Vibration Sources:

1. Keystroke Vibration: Impact of hitting keys transmits to floor (60%)
2. Pedal Operation: Foot pressing pedal vibration (30%)
3. Instrument Body Resonance: Body vibrates and transmits to floor (10%)

Feasibility on Apartment 2nd Floor and Above

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Realistic Judgment by Apartment Type:

• RC Structure, Slab 200mm+: Levels 2-3 possible
• RC Structure, Slab 150mm-: Level 3+ essential, still risky
• Wooden Apartments: Difficult at any level, digital piano + headphones recommended

If Detached House 1st Floor:

• Soundproof room only OK (¥1,000,000-1,500,000 / $6,667-10,000)
• Vibration control almost unnecessary
• Save ¥300,000-800,000 ($2,000-5,333) in additional costs

Case 2: Wind Instruments (Clarinet/Saxophone/Trumpet)

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Why Do Wind Instruments Still Cause Downstairs Complaints?

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Unexpected Vibration Sources:

1. Tonguing Action: Micro-vibrations when separating notes with tongue
2. Foot Tapping Habit: Unconscious foot tapping
3. Music Stand/Chair Vibration: Body swaying during performance

Countermeasures on Apartment 2nd Floor and Above

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Advice for Wind Players:

• Soundproof room highly effective (tone almost completely blocked)
• However, watch out if you have foot-tapping habit
• Thin vibration mat under soundproof room (¥50,000-100,000 / $333-667) greatly improves
• Vibration control almost unnecessary on detached house 1st floor

Case 3: Drums (Highest Difficulty)

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Why Are Drums Most Difficult?

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Drum Vibration Generation:

1. Bass Drum Pedal: Impact of foot pressing is maximum vibration source (70%)
2. Snare/Tom Impact: Stick striking impact (20%)
3. Chair/Body Vibration: Whole-body movement during performance (10%)

Feasibility by Housing Type

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Harsh Advice for Drummers:

• Give up acoustic drums on apartment 2nd floor and above
• Even electronic drums require thorough vibration control (¥100,000-300,000 / $667-2,000)
• Detached house 1st floor: soundproof room + vibration control achieves goal (¥2,000,000-3,000,000 / $13,333-20,000)
• Detached house basement: ideal environment

Case 4: Bass/Low-Frequency Instruments (Low-Frequency Sound Problem)

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Why Do Bass/Low-Frequency Instruments Easily Cause Downstairs Complaints?

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Low-Frequency Sound Characteristics:

1. Penetrates Walls/Floors: Unlike high frequencies, bends around obstacles
2. Resonates Throughout Building: Travels far through structural elements
3. More Discomfort Than Measured Values: “Thump thump” resonates even with low dB

Countermeasures by Housing Type

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Advice for Bassists:

• Headphone use prerequisite in apartments
• If must use amp, small amp (10W-) + soundproof room + vibration control
• Detached house 1st floor allows amp use with soundproof room
• Studio rental (¥20,000-30,000/month / $133-200) also realistic option

Case 5: Multi-Person Band Practice/Sessions

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Why Do Band Practices Cause Downstairs Complaints?

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Combined Vibration Generation:

1. Drum vibration (maximum factor)
2. Bass amp low-frequency sound
3. Multiple people’s foot tapping/movement
4. Volume tends to increase

Realistic Choices for Band Practice:

• Apartments: Studio rental only (hourly ¥1,000-3,000 / $7-20)
• Detached House 1F: Soundproof room + vibration control achieves goal (¥3,000,000-5,000,000 / $20,000-33,333)
• Detached House Basement: Ideal environment

Specific Vibration Control to Prevent Downstairs Complaints

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To prevent complaints despite installing soundproof room, vibration control is essential.

Basic Policy: 2 Approaches

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In most cases, approach ① suffices.

② is expensive and difficult to restore in rentals, suitable for serious homeowners.

Countermeasure ①: Place Vibration Mat Under Soundproof Room (Most Realistic)

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Types of Vibration Mats and Selection

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By Instrument: Recommended Vibration Mat Thickness

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Important Point:

• Ideal to place vibration mat before installing soundproof room
• Even after installation, possible to temporarily move room and place mat
• No restoration issues in rentals as removable

Vibration Mat Installation Method

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Basic Steps:

1. Clean floor where soundproof room will be installed
2. Cut vibration mat to match soundproof room size
3. Spread vibration mat on floor
4. Install soundproof room on top

Notes:

• Choose thickness that can support soundproof room weight
• Spread without gaps (partial coverage halves effectiveness)
• Ensure soundproof room legs completely rest on vibration mat

Countermeasure ②: Instrument Body Vibration Control (Additional Effect)

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After placing vibration mat under soundproof room, applying countermeasures to instrument body further increases effectiveness.

Piano Vibration Insulators

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Installation Method:

• Install insulators on all 4 piano legs
• Maintaining level is important (also affects piano tone)
• Regularly check for position shifts

Tangible Effect:

• Keystroke “thump thump” vibration noticeably decreases
• 30-50% reduction in impact on downstairs
• Synergistic effect with vibration mat combination

Electronic Drum Vibration Control

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Complete Electronic Drum Vibration Setup:

1. Install soundproof room on floor (Dr-40 level): ¥1,000,000-1,500,000 ($6,667-10,000)
2. Thick vibration mat under soundproof room (20-30mm): ¥60,000-150,000 ($400-1,000)
3. Install vibration platform inside room: ¥50,000-100,000 ($333-667)
4. Individual bass drum pedal pad: ¥5,000-10,000 ($33-67)

Total Cost: ¥1,150,000-1,800,000 ($7,667-12,000) Effect: 80% reduction in downstairs complaint risk

Countermeasure ③: Floating Floor Structure in Soundproof Room (For Serious Users)

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Option or specialized contractor’s floating floor structure incorporation.

What Is Floating Floor Structure?

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Structure that inserts vibration springs or rubber between floor and soundproof room, “floating” the room itself. Most effective as vibration doesn’t directly transmit to floor.

Floating Floor Structure Merits and Demerits

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Merits:

• Maximum 80-90% vibration reduction
• Acoustic drums also possible
• Professional-level environment

Demerits:

• Very high cost (+¥500,000+ / $3,333+)
• Significant weight increase (floor load verification essential)
• Restoration difficult in rentals
• Soundproof room height reduced by 10-20cm

Realistic Judgment:

• For serious users wanting acoustic drum practice at home
• Homeowners with budget flexibility
• Most people suffice with “soundproof room + vibration mat”

Housing Selection Advice to Avoid Regrets

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To practice instruments without worry, 90% is determined at housing selection stage.

Choice 1: Detached House 1st Floor/Basement (Most Recommended)

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Why Is Detached House 1st Floor Optimal?

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Overwhelming Merits:

1. Zero downstairs vibration: Ground absorbs vibration
2. Almost no additional vibration control cost: Soundproof room suffices
3. Acoustic drums also achievable: Serious instrument practice possible
4. Significantly lower complaint risk: Neighbor consideration needed but no downstairs worry
5. Lower total cost: Cheaper than apartment 3rd floor + vibration control

Who Should Choose Detached House 1st Floor:

• Those buying/renting houses now
• Those wanting serious instrument practice
• Those wanting to reduce costs long-term
• Those wanting acoustic drum practice at home

Notes:

• Sound leakage countermeasures to neighbors still necessary (windows/walls soundproofing)
• Avoid late night/early morning
• Advance greetings and explanations

Choice 2: Apartment 1st Floor (Second-Best Choice)

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Apartment 1st Floor Merits

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Downstairs Vibration Problem Solved:

• No room downstairs, so maximum structure-borne sound problem cleared
• Soundproof room + basic vibration control suffices
• Can focus on airborne sound countermeasures to upper/adjacent rooms

Who Should Choose Apartment 1st Floor:

• Those hoping for apartment living in urban areas
• Those mainly playing piano or wind instruments
• Those prioritizing convenience over detached houses

Notes:

• Airborne sound countermeasures to upper/adjacent rooms necessary
• Building regulation verification essential
• Acoustic drums difficult

Choice 3: Apartment 2nd Floor and Above (Downstairs Consideration Most Important)

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Countermeasures to Minimize Impact on Downstairs

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Essential Countermeasures:

• Soundproof room (Dr-40+): ¥1,000,000-1,500,000 ($6,667-10,000)
• Vibration mat (20-30mm): ¥60,000-150,000 ($400-1,000)
• Instrument body vibration control: ¥50,000-200,000 ($333-1,333)
• Total: ¥1,150,000-1,850,000 ($7,667-12,333)

Risks of Choosing Apartment 2nd Floor and Above:

• Additional costs (+¥300,000-800,000 / $2,000-5,333) definitely necessary
• Complaint risk remains despite countermeasures
• Instrument types limited
• Time constraints strict

Mindset If Still Living on Apartment 2nd Floor and Above:

1. Advance greetings and explanations essential
2. Usage time daytime only (9 AM-7 PM recommended)
3. Immediate response to complaints
4. Regularly check sound with downstairs

Choice 4: Soundproof Rental (Specialized Property)

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Soundproof Rental Option

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Merits:

• High soundproofing performance from start
• Neighbors also musicians so understanding
• No soundproof room purchase cost
• Released from risk upon moving

Who Should Choose Soundproof Rental:

• Those continuing rental living
• Those avoiding soundproof room purchase cost (¥1,000,000+ / $6,667+)
• Those possibly moving in future
• Those wanting to try various instruments

Cost Comparison (5 Years):

• Soundproof Rental: Rent increase ¥20,000/month × 60 months = ¥1,200,000 ($8,000)
• Normal Apartment + Soundproof Room: Room ¥1,200,000 + Vibration ¥300,000 = ¥1,500,000 ($10,000)

→ If moving within 5 years possible, soundproof rental better cost-performance

Housing Type Summary: Realistic Soundproof Room Installation Countermeasures

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Learning from Actual Trouble Cases

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Actual examples where downstairs complaints occurred despite buying soundproof rooms, and lessons learned.

Case 1: Clarinetist, Apartment 3F → Complaints with Soundproof Room Dr-40

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Situation:

• 15-year-old RC apartment 3rd floor
• Instrument manufacturer soundproof room Dr-40 (¥1,200,000 / $8,000)
• Clarinet practice (1-2 hours daily, 7-9 PM)
• Complaints “can hear sound” from downstairs 2 weeks after installation

Failure Causes:

• Installed soundproof room directly on floor (no vibration mat)
• Believed contractor’s words “Dr-40 will be fine”
• Tonguing action and foot-tapping vibration transmitted downstairs

Additional Countermeasures and Cost:

• Added vibration mat (10mm): ¥30,000 ($200)
• Vibration rubber on music stand: ¥5,000 ($33)
• Total: ¥35,000 ($233) additional expense

Lesson:

Always confirm “is vibration control necessary?” when purchasing soundproof room. Even if contractor says “it’s fine,” vibration mat essential if downstairs exists.

Case 2: Piano Teacher, Apartment 2F → Complaints with Room + Digital Piano

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Situation:

• RC apartment 2nd floor (slab thickness 180mm)
• Dr-40 soundproof room + digital piano (total ¥1,500,000 / $10,000)
• Piano lessons (5-6 hours daily)
• Complaints “thumping sound is loud” from downstairs 1 month after installation

Failure Causes:

• Soundproof room only, no vibration control
• Underestimated digital piano keystroke vibration
• Long usage accumulated downstairs discomfort

Additional Countermeasures and Cost:

• Vibration mat under soundproof room (20mm): ¥60,000 ($400)
• Insulators on digital piano legs: ¥10,000 ($67)
• Total: ¥70,000 ($467) additional expense + apology to downstairs

Lesson:

Digital pianos also generate keystroke vibration. Long practice sessions require especially thorough vibration control.

Case 3: Drummer, RC Rental Apartment → Forced Eviction with Acoustic Drums

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Situation:

• RC apartment 2nd floor “instrument-allowed” property
• D-65 soundproof room + vibration control (total ¥3,000,000 / $20,000)
• Started acoustic drum practice
• Complaints from multiple rooms from day 1 → Forced eviction notice 2 weeks later

Failure Causes:

• Misunderstood “instrument-allowed” as “acoustic drums OK”
• Acoustic drums virtually impossible on apartment 2nd floor and above
• Bass drum vibration couldn’t be prevented despite vibration control

Total Damages:

• Soundproof room removal cost: ¥300,000 ($2,000)
• Moving cost: ¥500,000 ($3,333)
• New residence initial cost: ¥800,000 ($5,333)
• Compensation-like demand: ¥500,000 ($3,333)
• Total: ~¥2,100,000 ($14,000) loss

Subsequent Choice: → Moved to detached house 1st floor, reinstalled soundproof room

Lesson:

“Instrument-allowed” ≠ “Acoustic drums OK”. Give up acoustic drums on apartment 2nd floor and above. If serious about drums, choose detached house 1st floor from start.

Case 4: Failed by Believing Contractor’s “Soundproof Room Alone is Fine”

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Situation:

• Wooden apartment 2nd floor
• Major manufacturer soundproof room Dr-40 (¥1,300,000 / $8,667)
• Saxophone practice
• Complaints from downstairs 1 week after installation

Failure Causes:

• Contractor explained “Dr-40 has no problems”
• No explanation of structure-borne sound (vibration) whatsoever
• Underestimated structural fragility of wooden apartment

Additional Countermeasures and Result:

• Added vibration mat (¥50,000 / $333)
• Limited usage time to daytime only
• Complaints continued, eventually moved

Lesson:

Don’t take contractor’s “it’s fine” at face value. Always confirm “is downstairs vibration control necessary?” Musical instrument performance on wooden apartment 2nd floor and above is ultra-high risk.

Success Case: Initially Installed on Detached House 1F → Zero Complaints

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Situation:

• Wooden detached house 1st floor
• Dr-40 soundproof room + basic vibration mat (total ¥1,250,000 / $8,333)
• Piano/saxophone practice (3 hours daily)
• Zero complaints 2 years after installation

Success Factors:

• No downstairs so no structure-borne sound problem
• Ground absorbs vibration
• Advance greetings and explanations to neighbors
• Implemented window soundproofing too

Cost-Effectiveness:

• Additional vibration control cost: Minimal (~¥20,000 / $133)
• Complaint risk: Almost zero
• Best cost-performance long-term

Lesson:

For long-term instrument practice, choosing detached house 1st floor from start is wisest. Not just “soundproof room purchase cost” but “housing choice” determines total cost.

Pre-Purchase Checklist to Avoid Regrets

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Must-confirm points before buying soundproof room.

[Essential] Pre-Purchase Confirmation Items

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Essential Questions List for Contractors

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Must Ask Soundproof Room Contractors:

1. “Is downstairs vibration control necessary?”
2. “Is vibration mat optional or essential?”
3. “What’s downstairs complaint risk with my instrument and building structure?”
4. “Any past examples of complaints in similar environments?”
5. “If complaints come, how much will additional countermeasures cost?”

Watch Out for These Contractor Responses:

• “Dr-40 is sufficient” → No vibration control explanation
• “Never heard complaints before” → May not be following up
• “Vibration mat is optional” → Underestimating downstairs complaint risk

Housing Type Final Decision Chart

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Choose Your Situation

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A. Living/Planning to Live on Detached House 1F/Basement → ✅ OK to proceed with soundproof room purchase → Basic vibration control sufficient (+¥20,000-50,000 / $133-333) → Almost no instrument restrictions

B. Living/Planning to Live on Apartment 1F → ✅ OK to proceed with soundproof room purchase → Vibration control essential (+¥50,000-150,000 / $333-1,000) → Acoustic drums difficult, but piano/wind instruments possible

C. RC Apartment 2F+, New Construction (Slab Thickness 200mm+) → △ Soundproof room + thorough vibration control essential → Prepare for additional cost (+¥100,000-300,000 / $667-2,000) → Wind/piano possible, electronic drums possible with time consideration

D. RC Apartment 2F+, Older (Slab Thickness 150mm-) → ⚠ High risk, judge carefully → Complaint risk remains despite room + vibration control → Wind possible, piano/drums difficult → Consider soundproof rental move

E. Wooden Apartment 2F+ → ❌ Soundproof room purchase not recommended → High complaint risk despite any countermeasures → Electronic instruments + headphones OR soundproof rental move OR studio rental

Summary: To Avoid Downstairs Complaints Despite Buying Soundproof Room

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Core of This Article: 3 Important Truths

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Truth 1: Soundproof Room D-Value is “Airborne Sound” Performance, “Vibration Sound” is Separate

Numbers seen in soundproof room ads like “Dr-40” “D-60” are sound insulation performance for airborne sound.

Vibration through floor (structure-borne sound) reaches downstairs regardless of D-value.

• Instrument tone (melody): Blocked by soundproof room
• Keystroke vibration, footsteps, pedals: Not blocked by soundproof room

Truth 2: 70% of Downstairs Complaint Causes are “Floor Vibration”

Most cases where complaints occurred after installing soundproof rooms were caused by “vibration transmission,” not “sound leakage.”

Without considering vibration control (vibration mat etc.) when purchasing soundproof room, additional costs become necessary later.

Truth 3: 90% Determined by Housing Choice

Same soundproof room, same instrument, but results vary greatly by residence.

For long-term instrument practice, choosing detached house 1st floor from start is the wisest investment.

Cost Comparison: Apartment 3F vs Detached House 1F

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Installing Soundproof Room on Apartment 3F

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• Soundproof room (Dr-40): ¥1,200,000 ($8,000)
• Vibration mat (20mm): ¥60,000-150,000 ($400-1,000)
• Instrument vibration control: ¥50,000-100,000 ($333-667)
• Total: ¥1,300,000-1,450,000 ($8,667-9,667)
• Complaint Risk: Medium-High
• Instrument Restrictions: No acoustic drums, time restrictions

Installing Soundproof Room on Detached House 1F

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• Soundproof room (Dr-40): ¥1,200,000 ($8,000)
• Basic vibration mat: ¥20,000-50,000 ($133-333)
• Total: ¥1,220,000-1,250,000 ($8,133-8,333)
• Complaint Risk: Low
• Instrument Restrictions: Almost none (neighbor consideration needed)

Conclusion: Detached house 1F is cheaper in cost, higher in effect, lower in risk

Actions You Should Take

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Case 1: About to Buy Soundproof Room

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1. First confirm housing type: Which floor? Structure?
2. Understand instrument vibration level: Piano, drums, wind instruments etc.
3. Always confirm with contractor: “Is downstairs vibration control necessary?”
4. Calculate total cost: Room + vibration control total
5. Consider housing choice too: If moving possibility exists, consider detached house 1F or soundproof rental from start

Case 2: Already Bought Room and Complaints Came

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1. Immediate apology: Prioritize relationship with downstairs residents
2. Add vibration mat: 20-30mm vibration mat under soundproof room
3. Countermeasures for instrument body too: Insulators, vibration platforms etc.
4. Limit usage hours: Restrict to 9 AM-7 PM
5. If still doesn’t work: Consider move OR studio rental OR soundproof rental

Case 3: Considering Purchase But Hesitating

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Be cautious about purchasing if:

• Living on wooden apartment 2nd floor and above
• Living on RC apartment 2nd floor and above, older (slab thickness 150mm-)
• Wanting acoustic drum practice at home
• Many households with small children nearby

Should Consider Alternatives:

• Studio rental (¥30,000-50,000/month / $200-333)
• Move to soundproof rental (rent +¥20,000-50,000/month / $133-333)
• Electronic instruments + headphones
• Move to detached house 1F / apartment 1F

Final Words: Soundproof Room is Not a “Magic Box”

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Soundproof rooms are wonderful products, but not all-powerful.

• Can block airborne sound (tone) but not vibration sound
• Even with high D-value, separate countermeasures needed for downstairs vibration
• Effect varies greatly by residence structure and floor

Not “soundproof room purchase is enough,” but “soundproof room + vibration control + housing choice” as a set of three.

Using real examples and countermeasures introduced in this article, achieve soundproof room selection without regrets.

I hope you can realize an environment where you can truly enjoy musical instrument performance.

Related Articles

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• Soundproof Room D-Value Soundproofing Performance: Selection Criteria
• Soundproof Rentals in Japan: Complete Guide on Differences from “Instrument-Allowed”
• Piano Soundproof Room Selection: Countermeasures for Grand/Upright
• Electronic Drum Soundproofing/Vibration Control: Methods Possible in Japanese Apartments