Speech privacy at the office, The quickest path to a more focused workplace.
Soft dB's 30-year technology, officially supplied in Korea. A non-destructive solution that activates in 1–3 days with ceiling-mounted speakers — no wall demolition. The ABM framework — integrating Absorption, Blocking, and Masking from a single vendor — is exclusively offered by Tornex in Korea.

Listen first.
What sound masking is and what it sounds like — official Soft dB intro video, 2 min.
Distraction radius reduced 8x.
Audible conversation distance. Before masking: 12 m → After: 4.5 m.
Absorb · Block · Mask.
The only positioning in Korea that can propose all three acoustic elements in a single design.
Tame reverberation
Stop transmission
Cover what remains
Packages tailored to your space.
Select the optimal combination by scale and use.
Privacy Shield
- Controller ML-12 (small) · ML-24 (medium)
- Speaker SMS-HDN (hidden) — invisible install for executive spaces
- Key Adaptive Volume · Multi-zone independent control
- ABM Supplements weak existing partition blocking; add PET panels as needed
Open Office
- Controller ML-48 (large) · RL-96 (floor-scale)
- Speaker SMS-STR (plenum) · SMS-FLAT (exposed ceiling)
- Software smartSMS-NET + SMS-Link (multi-zone central management)
- ABM PET baffles/clouds for ceiling absorption + masking integration
ABM Total
- Pre-simulation Predict results with the Treble 3D acoustic simulator
- Full Cycle Design → supply → install → measure → tune, one stop
- Differentiator ABM integration that competitors cannot replicate
- Certification Supports LEED · WELL · G-SEED acoustic credits
Why this system.
Real-time automatic volume adjustment
Independent EQ per zone
Non-destructive · 1–3 day install
Globally proven
Auto-adjusted every 15 seconds.
Not a fixed volume. Sensors measure ambient noise in real time → masking level auto-corrected across 340 narrow bands.
Verified installation references.
The actual hardware.
Soft dB smartSMS-NET controllers and speakers — the units that ship and get installed.






3 mounting methods for every ceiling type.
Recommended: plenum indirect (SMS-STR) — invisible + uniform coverage.
Managed from one screen.
smartSMS-NET — calibration · zone layout on drawings · entire system from a single interface.



System components.
Controllers · 4 Models
| Model | Channels | Max Speakers | Scale |
|---|---|---|---|
| ML-12 | 1 | 12 | Small Office |
| ML-24 | 2 | 24 | Medium Office |
| ML-48 | 4 | 48 | Large Office |
| RL-96 | 8 | 96 | Floor-level (~470 ㎡) |
Speakers · 7 Types
| Model | Type | Application | Certification |
|---|---|---|---|
| ★ Recommended — Indirect Plenum-Mount (Primary) | |||
| SMS-STR | Ceiling Plenum · Exposed | Standard — 균일 커버리지 · 비가시 | UL 62368 · UL 2043 |
| SMS-STX | Small Ceiling Plenum | 협소 공간 — 균일 커버리지 | UL 62368 |
| Specialty Applications | |||
| SMS-FLAT | Flat Panel | 노출 천장 · 타일 교체 | UL 62368 · UL 2043 |
| SMS-DIR | Directional | 타겟 존 마스킹 | UL 62368 |
| SMS-HDN | Hidden | 미학 우선 공간 (임원실) | UL 62368 · UL 2043 |
| SMS-Surf4 | Surface Mount | 음악 + 방송 겸용 | UL 62368 · UL 2043 |
| SMS-VibX | Vibration Exciter | 모든 표면 유형 | — |
Sensors · Software
| Product | Description |
|---|---|
| SMS-SEN | 실시간 주변 소음 센서 · 채널당 최대 6개 |
| SMS-CTP | 7인치 중앙 터치 패널 |
| smartSMS-NET | 플로어 플랜 시각화 · 중앙 관리 소프트웨어 |
| CTP | Commissioning Tool · 타겟 커브 매칭 정밀 튜닝 |
| SMS-Link | 모바일 앱 · 스마트폰에서 볼륨 제어 |
Tornex Acoustic Consulting.
Site Measurement
Acoustic Design
3D Simulation
Supply · Install
Commissioning
Verification
Multiply masking effect 2–3×.
Sound masking alone is effective, but combining it with acoustic materials yields better results.
PET Absorber Panels
Melamine Foam
Wood-Wool Boards
ANKER Carpet Tile
How is it different from white noise.
The Soft dB target spectrum is designed to precisely cover the human speech band (300 Hz – 3.4 kHz).
Approximate payback period.
Change the numbers yourself. Accurate estimates are calculated after site measurement.
Internal review materials.
Korean brochure PDF — system overview · adoption procedure · domestic references.
토넥스 사운드 마스킹 브로슈어 (국문)
Soft dB 시스템 개요·도입 절차·국내 레퍼런스를 한 권에. 사내 검토용으로 공유하기 좋습니다.
Frequently asked questions.
01Can it be installed in existing buildings?+
Yes. Sound masking requires no construction or structural changes. Speakers are installed above ceiling tiles or on exposed ceilings — typically completed within 1–3 days for a standard office.
02How long does installation take?+
2–3 days for a standard 500 m² office, including installation and commissioning. After-hours work is available so daily operations are not disrupted.
03What about maintenance?+
Sound masking systems are essentially maintenance-free. Adaptive Volume sensors continuously optimize performance, and Tornex provides scheduled inspections and technical support.
04Is it better paired with absorption panels?+
Much better. The ABM framework — Absorb + Block + Mask — delivers 2–3× the effect of any single solution. Tornex is the only company in Korea offering all three from a single vendor.
05How is Soft dB different from other systems?+
Soft dB is the only system in the industry to offer real-time Adaptive Volume. Other systems play sound at a fixed level; Soft dB measures the environment in real time and adjusts automatically — maintaining optimal masking 24/7.
06Is it the same as white noise?+
No. White noise distributes equal energy across all frequencies; sound masking uses a spectrum optimized for the human speech band. Soft dB uses a pink-noise-based precision masking spectrum that creates a natural, comfortable background sound.
07How is this different from noise-canceling headphones?+
Completely different mechanisms. Active noise cancellation generates an inverted waveform inside headphones to destructively interfere with incoming noise — works per-person. Sound masking emits a low-level background sound shaped to the human speech band (300 Hz – 3.4 kHz) across an entire space, making speech unintelligible without removing it — works per-area. Headphones are for individual focus; masking is for speech privacy and distraction reduction across multi-occupant spaces.