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PRO-304/N: Sound Quality 4ch Artificial Head Solution
Perfect Aural Recording and Playback
Combining the best-in class quality of the CORTEX Head, the powerful NetdB-DAQ platform and a bundle of analysis functions, PRO-304/N will be the most suitable 2+2 channel recording system (based on the NetdB-DAQ12/4 evolving platform) with a playback function which allows listening to your product noise during development, helps identify sources and check for improvement through simulation, using filtering and Re-synthesis capabilities.
- IEC standard compliance as for Head dimensions and directivity
- Mutli-equalization choices: Lin, Free-Field. Diffuse-Field, User defined, Headphones
- Data compatibility with other Acoustic Head and Sound Quality recorded files
- PDA Wireless Recording Playback control for easy use in vehicles
- Large data storage with internal HD 100 GB (85 GB for data)
Key Features
Acoustic Head and Recording - Highest precision geometry for pinna, head and torso according to standard
- Class 1 IEC microphones for connection to any recording device
- NetdB-DAQ12/4 expandable solution for Sound, Vibration, Tachometers, others signal (see NetdB-DAQ12 platform, PRO-111 or PRO-120 technical data sheets)
- 51kHz sampling frequency, 24 bits, IEPE inputs, SPDIF & Headphones outputs
- Audio Data Recording using PDA remote control software
- Easy calibration with standard calibrator without any adaptor
- Operated from internal Batteries or car 12VDC
A complete set of tools for data analysis - dBSonic Extended Package for analysis, playback & reporting
- FFT Analysis, Waterfall and sonogram, sonogram difference
- Psychoacoustic analysis: Loudness, Sharpness, Fluctuation Strength, Roughness, AI, SII, Tonality
- RPM recording, RPM extraction from signal, display of all data vs. RPM
- Order analysis
- Playback with equalization
- Advanced real-time Filtering: HP, LP, BP, Notch, 1/n analysis with Digital Filters
- Advanced analysis: Wavelets, Modulation Analysis
- Automatic report, exportation capabilities (data, sonogram, metric synthetic tables)
- Data edition in MatlabTM for further analysis
Options
All dBFA and dBSonic software features:Auditory spectrograms, contour edition (Gestalt interpretation), time-frequency edition, sound re-synthesis etc
Applications:
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

PRO-304/N Technical Specifications
CORTEX Manikin - Color: Gray
- Dimensions: 520 x 430 x 240 mm (W x H x D)
- Weight: 14 lbs (7 kg)
- Material: Polyurethane with Nextel coating
- Ears: IEC 959 compliant, , soft silicone, easy removable for calibration
- Directivity: In acc. with IEC 959 & DIN V 456082
- Output: analog outputs (Left & right ears)
- Microphone type: MTG NC-MK231 1/2 “
- Polarization voltage: 200 VDC
- Heating voltage: +12 VDC
- Freq. range free-field: 3,5 Hz to 16 kHz (± 3 dB)
- Sensitivity: 50 mV/Pa
- Max. SPL for THD < 3 % at 1 kHz: 146 dB
- Inherent noise: 15 dBA
NetdB-DAQ12 platform - Dimensions: 250mm(W) x 85mm(H) x 263mm(D) excluding projections
- Weight: 4.5 kg
- Input channels: 4 dynamic channels with 200V power supply for connecting up to 2 manikins
Alternatively 4 dynamic channels with IEPE power supply (needs an additional conditioning unit to supply the manikin microphones) Possibility to extend the number of 200V channel up to 8 (4 manikins) or 12 for IEPE channels - Input range: 10V rms (-15V to +15V), 1V rms (-1.5V to +1.5V), 100mV rms (-150mV to +150mV) (TBC)
- Digitization: 24 bits resolution
- Sampling frequency: 51200 Hz
- SNR: > - 105 dB RMS of the full scale
- Signal Output: 2 x BNC connectors
- Phones: Jack connector - Stereo output for Headphones
- Digital Input/output: RCA connector for SPDIF In/Out
- Power consumption: 20W
- Voltage/current: 12V to 14 VDC / 3.5A (max)
- Battery: Internal NiMH 4000mAH
- Battery life:1h45 full speed running 12 channels
- Adapter: AC 110 V / 250 V
- Storage: 100 GB HDD
PDA remote control - Communication with NetdB-DAQ12: LAN or WLAN (wireless)
- Capabilities: Definition of measurement configurations (number and type of sensors), range definition, calibration, Acquisition, recording, playback directly on NetdB-DAQ12 (4 to 12 channels version), Real time CORTEX manikin equalization (Free field, diffuse field, user), Real time playback equalization (HE60, HD580), 80 hours of data storage with 1 CORTEX manikin (85 GB of data)
Sound Quality software - dBSONIC BA: Basic Module & Frequency Analysis - Sound signal 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 - dBSONIC PSY: Psychoacoustic Analysis - Calculation of Loudness, Sharpness, Roughness and Fluctuation Strength, Articulation Index, Speech Intelligibility Index
- dBSONIC RPM: RPM analysis, Order analysis
- dBSONIC DIF: Spectrogram difference
- dBSONIC DOC: Documentation Module - The tool for comparing time histories and spectra - Multi scalar display and Multi spectra display - Report Wizard, Percentile calculation
- dBSONIC ED: Signal edition, online and offline filtering capabilities, built up of equalization curves
- dBSONIC FX: Advanced frequency analysis – Modulation analysis, wavelet analysis
- dBSONIC PX (OPTION): Auditory spectrogram, contours (gestalt interpretation), sound re-synthesis
- dBSONIC MAT: MATLABTM tool for data edition
Ordering Information:
NDB1002000-4: NetdB 4 channels Recorder, AC/DC/IEPE inputs, headphones & SPDIF outputs, 100GB hard disk SFA4074000: Wifi Remote control software for PDA: settings, calibration, start/stop, playback, equalization settings. SOL3003000: PDA delivered with TFT VGA screen and Windows Mobile 2005. NDB3301000: USB II – WiFi control key COC3045000: Cortex MK2-B SST: Binaural artificial head with Torso/shoulder unit, with silicon "soft ears", directional pattern and dimensions in acc. with IEC 959 and DIN V 45608. Built in class1 condenser microphones MTG CAL3009000: Calibrator CAL21, type 1, 94dB, 1000 Hz, PTB approved COC3046000: Dynamic Headphones Sennheiser HD 580 COC3048000: FCA - Flight Case For Acoustic Head and Accessories COC3050000: SST - Seat Stand for CORTEX MK2-B COC3012000, COC3020000, COC3021000, COC3022000, COC3023000, COC3024000, COC3025000, COC3027000: dBSONIC Extended package including the following modules: dBSONIC BA, PSY, ED, DOC, FX, RPM, DIF, MAT.
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