Soft dB · Noise & vibration
MEZZO 4-Channel Analyzer
Four-channel noise and vibration analyser with built-in DSP for microphones and accelerometers, used with a Windows tablet or laptop over USB.
The MEZZO 4-Channel Analyzer from Soft dB (Canada) measures sound and vibration on four channels at the same time. A DSP built into the unit processes the signals in real time, while a Windows tablet or laptop connected by USB provides the large display, storage and analysis power.
It accepts IEPE sensors (measurement microphones and accelerometers) or AC signals through LEMO connectors, and is powered entirely by USB. The Waveform Recorder module is included for recording and post-processing: time history, FFT, fractional octave, statistics, FRF and waterfall. Further modules can be added for sound level and spectrum analysis, long-term monitoring, building acoustics and sound intensity.
Key features
- 4 synchronised input channels for microphones and accelerometers
- Built-in DSP for real-time processing
- IEPE or AC signal conditioning, LEMO connectors
- Waveform Recorder with post-processing included
- FFT, 1/1, 1/3 and 1/24 octave, FRF (magnitude, phase, coherence), waterfall
- Optional Noise Analyzer, Noise Monitor, Building Acoustics and Intensity modules
- USB powered, compact 145 × 60 × 35 mm
Specifications
| HARDWARE | |
|---|---|
| Channels | 4 |
| Signal conditioning | AC or IEPE |
| Connectors | LEMO coaxial (series 0S) |
| Maximum sampling rate | 48 kHz |
| Input range | Low 0.42 Vpk, High 2.1 Vpk |
| Peak maximum level | Low range 112 dBpk, High range 126 dBpk (50 mV/Pa microphone) |
| Noise level | Low range 22 dBA / 20 dBC / 25 dBZ; High range 32 dBA / 30 dBC / 35 dBZ |
| Under-range limit | Low range 32 dBA; High range 39 dBA |
| Communication | USB 2.0 (Mini-B) |
| Power | USB powered, max 0.35 W |
| Dimensions | 145 × 60 × 35 mm |
| WAVEFORM RECORDER MODULE (INCLUDED) | |
| Time history | global or 1/1, 1/3, 1/24 octave band; RMS (Leq), Slow, Fast, Impulse or Peak |
| FFT | selectable resolution, window and overlap; RMS average or max hold; power spectrum or PSD |
| Fractional octave | 1/1, 1/3 or 1/24; Leq, peak max or percentile |
| FRF | magnitude, phase and coherence |
| Waterfall | power spectrum or PSD over time |
| Signal integration | single, double or none |
| Frequency weighting | A, C or Z |
| Standards | IEC 61672-1 (2013), IEC 61260 (2014), ANSI S1.4 (2014), ANSI S1.11 (2014) |
| Computer | Windows, 1.2 GHz CPU, 2 GB RAM minimum |
| OPTIONAL MODULES | |
| Noise Analyzer (SLM, RTA and FFT), Noise Monitor, Building Acoustics, Intensity Analyzer | |
Downloads
Waveform Recorder (included)
Records sound and vibration on all channels and post-processes the files in the same interface: time history, FFT spectrum, fractional octave spectrum, statistics, FRF and waterfall. Its file structure loads quickly even with very large recordings.
Noise Analyzer (SLM, RTA and FFT)
Turns the analyser into a professional sound level meter and real-time spectrum analyser, with 1/1, 1/3 and 1/24 octave filters and FFT.
Building Acoustics (optional)
For room noise, reverberation time, airborne sound insulation and impact sound measurements, with all measurements and reports in one project file and on-site reporting so no measurement is forgotten.
MEZZO Precision Microphone or 4-Channel Analyzer?
Choose the Precision Microphone for single-channel sound level and spectrum measurement: it comes as a complete Class 1 microphone with the Noise Analyzer. Choose the 4-Channel Analyzer when you need several microphones or accelerometers at once, vibration measurement, FRF or advanced post-processing.
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