1040, Belvedere Avenue, Suite 215,
Quebec (Qc) G1S 3G3 Canada
Web Site www.softdb.com
E-mail info@softdb.com
Phone 1 (418) 686-0993
Toll Free 1 (866) 686-0993
MEZZO
Precision Microphone
The MEZZO Precision Microphone provides an innovative and cost-effective solution for
professional grade acoustical measurements.
More than just a DAQ system, the DSP embedded in each MEZZO Precision Microphone
ensures real-time signal processing.
Designed to be used with a tablet PC or any other Windows-based PC, the MEZZO
Precision Microphone benefits from the versatility and flexibility provided by computers.
This approach also allows the MEZZO Precision Microphone along with the MEZZO Noise
Analyzer Module to be offered at a very competitive price.
• Noise Analyzer Module (SLM, RTA & FFT) (included)
• Noise Monitor Module (Long Term Monitoring) (optional)
• Building Acoustics Module (optional)
• Waveform Recorder and Post-Processing Module (optional)
Used along with the MEZZO software, the MEZZO Precision Microphone complies with
IEC 61672 (2013).
Specifications
Microphone
BSWA MPA221 (Class 1)
1
or BSWA MPA225 (Class 2)
2
Connector SMB
Peak Maximum Level
3
Low Range: 112 dB
pk
High Range: 126 dB
pk
Noise Level
4
Low Range: 22 dBA, 20 dBC, 25 dBZ
High Range: 32 dBA, 30 dBC, 35 dBZ
Under-Range Limit Level
5
Low Range: 32 dBA, 30 dBC, 35 dBZ
High Range: 39 dBA, 37 dBC, 42 dBZ
Input Range
Low Range: 0.42 V
pk
High Range: 2.1 V
pk
Maximum Sampling Rate 48 kHz
Signal Conditioning IEPE
Communication USB 2.0 (Mini B connector)
Dimensions 230 x 32 x 23 mm
Power Supply USB Powered (Max 0.35W)
1: ½” MP201 Mic with MA221 Preamp – 50 mV/Pa, IEC 61672 (2013) Class 1, SMB Connector
2: ½” MP215 Mic with MA221 Preamp – 40 mV/Pa, IEC 61672 (2013) Class 2, SMB Connector
3, 4, 5: Evaluated according to IEC 61672 (2013) Class 1, using 50 mV/Pa sensitivity
1040, Belvedere Avenue, Suite 215,
Quebec (Qc) G1S 3G3 Canada
Web Site www.softdb.com
E-mail info@softdb.com
Phone 1 (418) 686-0993
Toll Free 1 (866) 686-0993
Mezzo Noise Analyzer Module (included)
The MEZZO Noise Analyzer Module is the perfect tool
for everyday sound level measurements and spectral
analysis. With standard 1/1, 1/3, 1/24 octave real-time
digital filters and FFT analysis, the Mezzo Noise Analyzer
Module provides professional results with ease.
The MEZZO Noise Analyzer Module is included as the
standard measurement module with the MEZZO
Precision microphone.
With its intuitive interface the MEZZO Noise Analyzer
Module eliminates the need to read instruction
manuals. Just connect a MEZZO Precision Microphone
and you are ready to go!
The large and clear interface is easy to read and work
with; you will never want to use a small SLM display
again.
Designed with touchscreens in mind, the MEZZO Noise
Analyzer Module includes automatic keyboards and
keypads to enhance your mobile experience.
The MEZZO Noise Analyzer software provides class 0
digital filters and 64-bit computing offering the highest
level of precision.
The MEZZO Noise Analyzer Module along with the
MEZZO Precision Microphone offers a high-quality real-
time analyzer with FFT capability at an unbeatable price.
Specifications
Displays Live and Overall
Spectrums
1/1 Octave (16Hz to 16kHz), 1/3 Octave (12.5Hz to 20kHz),
1/24 Octave (11.4Hz to 22.1kHz), or FFT (DC to 24kHz, Leq only)
Time Weightings (SPL) Slow, Fast or Impulse
Frequency Weightings A, C and Z
Metrics (Spectrum and Global levels) Lmin, Lmax, LN%, Leq, and Lpeak
Instant Rate 50 ms
Standard Compliance IEC 61672-1 (2013), IEC 61260 (2014), ANSI S1.4 (2014), ANSI S1.11 (2014)
Minimum Requirement Windows XP SP3 and later, 1.2 GHz CPU, 2 GB RAM
1040, Belvedere Avenue, Suite 215,
Quebec (Qc) G1S 3G3 Canada
Web Site www.softdb.com
E-mail info@softdb.com
Phone 1 (418) 686-0993
Toll Free 1 (866) 686-0993
Mezzo Noise Monitor Module (optional)
The MEZZO Noise Monitor Module is the perfect
tool for remote noise monitoring stations:
• 4 distinct interval periods (1s to 24h);
• Audio records (mp3 and wave)
on trigger and/or periodic;
• Continuous camera snapshots
on trigger and/or periodic;
• Weather station support;
• Solar panel and power monitoring;
• FTP data transfer;
• And More!
Specifications
Interval Periods 4 distinct (1s to 24h)
SPL LMax, LMin and LN% Global and 1/3 Octave
SPL Time Weigth Slow, Fast or Impulse
Leq Global, 1/3 octave and FFT
LPeak Global and 1/3 octave
LTm5 (Taktmax) Global
Global Levels A, C and Z
1/3 Octave Band Spectrum 12.5Hz to 20kHz
FFT Spectrum 1000 lines over 20kHz, 10kHz, 5kHz, 3.33kHz, 2kHz or 1kHz
Instant Rate 50 ms
Audio Mp3 or Wav (periodic or triggered – 5s records to always on)
Camera
1
Frame rate down to 0.5s (periodic or triggered – 5s sequences to always)
Weather
2
Temperature, Humidity, Wind Speed and Direction, Rain, and Barometer
Averaged on each interval period
Power Monitoring
3
Battery state of charge, load power consumption, and solar charging power
Notifications Noise exceedance and/or power-loss, email and/or SMS
FTP Data Transfer Text or Binary
4
format
Standard Compliance IEC 61672-1 (2013), IEC 61260 (2014), ANSI S1.4 (2014), ANSI S1.11 (2014)
Minimum Requirement Windows XP SP3 and later, 1.2 GHz CPU, 2 GB RAM
1: Compatible with IDS XS camera, available with a weatherproof casing; contact us for more info.
2: Compatible with Davis Instruments Vantage stations with Weatherlink USB logger.
3: Compatible with EpSolar Tracer Serie MPPT solar charge controller, proprietary cable required; contact us for more info.
4: The binary format is compatible with Soft dB web interface, contact us for more information
1040, Belvedere Avenue, Suite 215,
Quebec (Qc) G1S 3G3 Canada
Web Site www.softdb.com
E-mail info@softdb.com
Phone 1 (418) 686-0993
Toll Free 1 (866) 686-0993
Mezzo Building Acoustics Module (optional)
The MEZZO Building Acoustics Module is the ideal
software module for the acoustical specialist,
providing an integrated project file with on-site
reports:
• Room Noise;
• Reverberation Time;
• Airborne Sound Insulation;
• Impact Sound Level;
• And More!
The MEZZO Building Acoustics Module uses a
project file approach, combining all measurements
and test reports in a single file.
This approach makes it easy to manage a large
quantity of measurements and provide on-site
reports. The on-site reporting allows the user not
only to view the test result instantly, but also to
make sure that no measurement has been
forgotten.
Specifications
Room Noise
NC, RNC, RC MKII (ANSI S12.2:2008),
RC, NCB (ANSI S12.2:1995)
NR (ISO 1996:1971)
Reverberation Time
T10, T15
T20, T30 (ISO 3382-2:2008)
T25 (ASTM E 2235:2004)
Interrupted noise method
1/1 Octave and 1/3 Octave
Airborne Sound Insulation
D
w
, D
n,w
, D
nT,w
, R’
w
(ISO 140-4:1998, ISO 717-1:2013)
NIC, NNIC, ASTC (ASTM E 0336:2005, ASTM E 0413:2004)
Impact Sound Level
L’
n,w
, L’
nT,w
(ISO 140-7:1998 - ISO 717-2:2013)
FIIC (ASTM E 0989:2006, ASTM E 1007:2004)
Spectrums 1/1 Octave (16Hz to 16kHz), 1/3 Octave (12.5Hz to 20kHz),
Minimum Requirement Windows XP SP3 and later, 1.2 GHz CPU, 2 GB RAM
