Bedrock Elite i5
Dedicated Class 2 STIPA Analyzer
IEC-60268-16 compliant STIPA measurement made simple. Developed by the same engineering team behind the Speech Transmission Index standard. Professional-grade results without professional-grade complexity.
Includes the Bedrock Elite Analyzer. Reporting and analysis software of this kind is typically sold separately, often for thousands of euros. With a Bedrock Elite instrument it is included — every module, no unlock fees. Try it in demo mode before you order, no serial needed. See the Analyzer →
The i5 is built for routine professional measurements where clarity, simplicity, and reliability matter. Based on a mature Bedrock Audio platform, refined for acoustic work.
About this product
The Bedrock Elite i5 is STIPA measurement done right: accurate, dependable, and straightforward. Developed by the same team that created the Speech Transmission Index, the i5 delivers professional-grade results without unnecessary complexity.
Built by the Experts
Our engineers have spent decades developing and refining the Speech Transmission Index. The i5 embodies that expertise in a focused, practical instrument designed specifically for STIPA measurement.
Plug-and-Play Operation
No complex calibration procedures. No confusing key combinations. The i5 is designed for professionals who need accurate results quickly—not engineers who want to spend hours configuring their equipment.
IEC-60268-16 Compliant
Full compliance with the current STIPA standard. When regulations matter, the i5 delivers measurements you can stake your reputation on.
Key Features
- IEC 60268-16 rev. 4 STIPA (all modes) and Full STI
- IEC 61672-1:2013 Class 2 sound level meter
- 1/4" free-field microphone (fixed); 1/2" free-field microphone optional; XLR 48 V phantom
- Real-time 1/1, 1/3, 1/6 and 1/12 octave analysis
- 32768-line FFT analyzer
- 3.2" LCD color touchscreen
- All modules included
- ISO17025 calibration available
Specifications
| Standards Compliance | IEC 61672-1 Class 2, ANSI S1.4 Type 2 (SLM), IEC 61260 class 0 (RTA), ISO 3382 (RT60), IEC 60268-16 rev. 4 (STIPA / Full STI), ISO 717 and ASTM E413 (Rw, STC) |
| Microphone Type | 1/4" free-field microphone (fixed, standard), typical sensitivity 30 mV/Pa; 1/2" free-field microphone IEC 61094-4 WS2F (optional), typical sensitivity 40 mV/Pa; preamplifier connector XLR, 48 V phantom power |
| Frequency Range | 20 Hz - 16 kHz |
| Measurement Range | On a typical 1/4" microphone, 30 mV/Pa: full range 27-130 dBA / 32-130 dBC / 35-130 dBZ; low range 28-121 dBA / 32-121 dBC / 35-121 dBZ; high range 44-123 dBA / 46-123 dBC / 47-123 dBZ. On a typical 1/2" microphone, 40 mV/Pa (optional): full range 25-144 dBA / 32-144 dBC / 35-144 dBZ; low range 27-118 dBA / 32-118 dBC / 35-118 dBZ; high range 39-124 dBA / 41-124 dBC / 42-124 dBZ |
| High-Level Measurement Range | With the optional PMP20 microphone: 27-139 dBA / 36-139 dBC / 39-139 dBZ; Peak C 42-140 dB; Peak Z 55-144 dB |
| Maximum Permissible SPL | 155 dB (maximum electric input 30 Vpp) |
| Self-Noise | 15 dBA, 18 dBC, 24 dBZ (electrical input signal) |
| Resolution | 0.1 dB |
| Sampling | 48 kHz, Ln (10.67 ms) |
| Linearity | > 103 dB dynamic range |
| Frequency Weighting | A, C, Z (parallel measurement) |
| Time Weighting | Fast, Slow, Impulse, Peak |
| Octave Analysis | Real-time 1/1, 1/3, 1/6 and 1/12 octave band |
| FFT Analyzer | 32768 lines |
| Speech Intelligibility | STIPA Basic, STIPA Pro, SNR; Full STI (IEC 60268-16 rev. 4) |
| Building Acoustics | D, R', DnT and L'nT with automatic single-number ratings (Rw, DnT,w, L'nT,w) and spectrum adaptation terms (C, Ctr) |
| Reverberation Time | RT60 - EDT, T20 and T30 in octave and 1/3 octave bands; impulse response and interrupted noise methods |
| Room Acoustics Parameters | Auditorium parameters C7, Ts, C50, D50 and C80 |
| Noise Curves | NR, NC, PNC, NCB, RC and RC Mark II |
| Electro-Acoustics | Oscilloscope, loudspeaker polarity, AC voltmeter, electric RTA (dBV, dBU, dBuV), %THD+N, Hz, pitch |
| Recording | .csv (opens with the Excel tool); .wav files at 48 kHz; calibrated audio recording |
| Signal Generator | Built-in signal generator: STI, noise, sines and sweeps |
| Statistics | L1-L99, Leq, Lmax, Lmin, Lpeak |
| Logging Interval | 0.1 sec - 999 sec logging, 1 sec – infinity |
| Display | 3.2" LCD color touchscreen |
| Connectivity | USB-C for data transfer and remote display |
| Data Storage | 16 GB internal storage |
| Battery | NiMH pack, 4.8 V nominal, typ. 2500 mAh; typical battery lifetime > 4 h; max. charge current 1.8 A; typical power consumption 5 W |
| Operating Conditions | Temperature 5 - 35 °C (41 - 95 °F); relative humidity 0 - 95% non-condensing |
| Dimensions | Approx. 210 x 85 x 55 mm (excluding microphone) |
| Material | Body housing: ABS and aluminium 6061-T6 display frame |
| Weight | 530 g (including battery and microphone) |
Applications
Explore detailed guides for each application area
Voice alarm system commissioning and compliance
PAGA system testing and verification
What's Included
Complete kit includes: Rugged hardcase, windscreen, universal power adapter (international plugs), USB cable, calibration certificate, lanyard, a plethora of Excel calculation and reporting sheets, plus Bedrock Studio software. ISO17025 accredited calibration available as an option.
From measurement to report — Bedrock Elite Analyzer
Turn your Bedrock Elite i5 measurements into standards-anchored results and branded reports, on your Windows desktop.
- No serial needed to start — run every module in demo mode.
- Branded, standards-referenced PDF reports.
- No add-ons, no per-module fees.
Frequently Asked Questions
Common questions about the Bedrock Elite i5
