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NetdB Pro-301
Start-up 2 Channel Sound Quality System
Headset Recording & Playback and
Analysis
PRO-301/N is a
2-channel professional recording system with a playback
function which allows listening to your product noise
during development, helps to identify sources and checks
for improvement through simulation, using filtering and
Re-synthesis capabilities.
This ultra-portable headset solution
for binaural recording can replace an artificial head in
any situations where an individual cannot be taken out,
typically for measurement at the driver location in a
car while running. Composed of a BMH headphone with
integrated microphones and a 24 bits Professional Sound
Card, PRO-301/N includes the relevant software
capabilities enabling you to analyze and optimize the
performance of your product:
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Playback equalization
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Sound Quality Metrics
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Advanced Filtering
capabilities (option)
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RPM and order analysis
(option)
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Time-frequency edition and
signal re-synthesis (option)
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Sound perception solution
| Portable recording & playback
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| 2 input channels (IEPE*)
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| 2 headphone outputs
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| Digitalization depending on the sound card of
your computer |
A complete set of tools for
data analysis
| Free Audio Recording Software
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| dBSonic Pro package for analysis, playback,
reporting
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| FFT Analysis, Waterfall and sonogram, sonogram
difference
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| Psychoacoustic analysis: Loudness, Sharpness,
Fluctuation Strength, Roughness, AI, SII, Tonality
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| Playback with equalization
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| Automatic report, exportation capabilities
(data, sonogram, metric synthetic tables) |
Options
| Auditory spectrograms, contour edition (),
time-frequency edition, sound re-synthesis,
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| RPM recording, RPM extraction from signal,
display of all data vs. RPM
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| Order analysis, Advanced real-time Filtering:
HP, LP, BP, Notch, 1/n analysis with Digital Filters
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| Advanced analyses: Wavelets, Modulation Analysis
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| Data edition in MatlabTM for further analyses |
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Sound Quality control in vehicles, Transient Analysis, Noisiness
evaluation, Noise control simulation, Sound quality diagnosis,
Environmental, Noise study and Monitoring, Psychoacoustics, Loudness and
related topics.
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BMH - Binaural Headset
| Electro-acoustic transducer
principle: dynamic, open-air |
| Frequency range: 20Hz -
18kHz |
| Impedance: 160 Ohm |
| Microphone cartridge sensitivity:
10mV/Pa |
| Microphone calibration: a special
acoustic coupler allows microphones calibration by means of
standard 1/2" acoustic calibrator |
| Headband pressure: approx. 1.6N
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| Weight: approx. 110g |
H43 - Two Channel Binaural Headphone
Conditioner
Two dedicated Input/Output channels for
direct BMH connection and Binaural Microphone conditioning.
=> Two IEPE* inputs, Minijack out for Sound card connection
| Headphone L/R input channels type:
dedicated (fulfill M-BMH requirements)
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| Headphone L/R input channels sound
level limit: 130dB re 20uPa
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| Analog input signal type: volt or
IEPE*
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| Analog
input voltage range: ±4Vpk
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| Analog input impedance: 100kohm
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| Analog input gain: 0dBV
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| Analog input dynamic range: >80dBV
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| Analog input background noise level:
<200uV
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| Analog input frequency range: 5Hz –
20kHz
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| IEPE* polarization current: 3.6mA
typ
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| IEPE* voltage compliance: 15V
typ
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| Analog output voltage range: ±4V
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| Analog output gain: 0dBV
typ
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| Power supply: internal 9V dry battery
(alkaline) /
external 7Vdc to 13.8Vdc – 40mA max
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| Size: W 105mm; D 130mm; H 32mm
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| Weight: 420g max (excluding cables)
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| Operating temperature: -10 / +50°C |
UAX220v2 2ch Audio Stereo I/O USB
Interface
=> 2/2 balanced analog high quality I/Os, 1
stereo headphone output
| Sampling Frequency: 32, 44.1, 48 kHz
(24 bits resolution) |
| Dynamic range (A weighted): >104dB
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| THD + Noise:
E<-98dB, S<-97dB
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| Channel crosstalk (analog
I/O): <-110dB /-95dB (ref. 1kHz
/10kHz @10dBu)
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| Analog input: 2 input lines,
symmetric
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| Input impedance: +22dBu / >10
kOhm
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| Analog output: 2 output lines /
floaing symmetry
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| Output impedance: +10dBu / <100 Ohm
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| Output gain: Programmable, from
-60dBr to +10dBr |
Software for Recording, Playback,
Filtering, Analysis
| dBSONIC BA:
Basic Module & Frequency Analysis - Sound signal recording
and playback, SPL, Third-octave and FFT analysis -
Tonalness (Prominence ratio and
Tone-to Noise), Basic editing and filtering functions –
Project Management, import function for 01dB-METRAVIB, Head
Acoustics and OROS sound files
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| dBSONIC PSY:
Psychoacoustic Analysis - Calculation of Loudness,
Sharpness, Roughness and Fluctuation Strength, Articulation
Index, Speech Intelligibility Index
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dBSONIC DIF:
Spectrogram difference
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dBSONIC DOC:
Documentation Module - The tool for comparing time histories
and spectra - Multi scalar display and Multi spectra display
- Report Wizard, Percentile calculation |
dBSonic Software options:
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dBSONIC RPM (OPTION): RPM
analysis, Order analysisdBSONIC
ED(OPTION): Signal edition, online and offline filtering
capabilities, built up of equalization curves
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dBSONIC
FX(OPTION): Advanced frequency analysis – Modulation
analysis, wavelet analysis
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dBSONIC
PX (OPTION): Auditory spectrogram, contours (gestalt
interpretation), sound re-synthesis
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dBSONIC
MAT(OPTION): MATLABTM tool for data edition |
Ordering Information:
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ACC3144000:
Binaural Headphones with microphones
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ACC3145000:
H43 - 2ch conditioner with 2 BNC inputs/1 LEMO input for BMH,
outputs vs. UAX220v2, cable for UAX220v2 included
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UAX220v2:
24 bits professional USB Audio, 2/2 high-quality
balanced analog I/Os, automatically recognized as an USB
Audio-compliant device
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CAL3009000:
Calibrator CAL21, type 1, 94dB, 1000 Hz, PTB approved
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COC3012000,
COC3020000, COC3025000, COC3022000: dBSONIC Pro
package including the modules: dBSONIC BA, PSY, DIF, DOC |
*IEPE Integrated Electronic Piezo
Electric
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Download PDF Brochure
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