xl2 audio and acoustic analyzer introducing the new flagship of the handheld exel line. v1.001, sep....
TRANSCRIPT
XL2
Audio and Acoustic Analyzer
Introducing the new flagship of the handheld EXEL line.
V1.001, Sep. 09
XL2
Audio and Acoustic Analyzer
• Sound Level MeterReal Time Analyzer
XL2
Audio and Acoustic Analyzer
• Sound Level MeterReal Time Analyzer
• Acoustic Analyzer
XL2
Audio and Acoustic Analyzer
• Sound Level MeterReal Time Analyzer
• Acoustic Analyzer• STI-PA Analyzer
XL2
Audio and Acoustic Analyzer
• Sound Level MeterReal Time Analyzer
• Acoustic Analyzer• STI-PA Analyzer• Audio Analyzer
XL2
Applications
• Live Sound Solutions • Sound Installations and
Recording Studios • Broadcast • Environmental Noise
Measurements • Service and Repair Centers
XL2
Configurations
• Set XL2 + M2210XL2 with M2210 - Extended Performance - Measurement Microphone withclass 1 frequency response
• Set XL2 + M4260XL2 with M4260 Measurement Microphone, Class 2
+
M2210
+
M4260
XL2 Interfaces
Big LCD 160x160with Backlight
Function Buttons
Limit LED withred, yellow, green Indication
Rotary Wheel
ShockProtectionJacket
HeadphoneOutput
Wire Stand
Rear Speaker
Battery Compartmentwith Li-Po Batteryincluded
Tripod Mount
Balanced &Unbalanced Input
Voice NoteMicrophone
Mains PowerAdapter Input
Digital I/O(prepared for later
firmware extension)
USB Interface
Mini-SD Card 2 GByteRemovable
TOSLink Output(prepared for laterfirmware extension)
XL2 Key Features
XL2
Features
• Flexible User Interface • Visual Limit LED of high sound
levels • Mini-SD Card, 2 GB removable • Real Time Clock • Built-in Speaker • Rechargeable Li-Po Battery
included • Automated Sensor Detection
reads electronic data sheet of M4260 and M2210
• Wave File Recording* • Voice Notes*
*optional
XL2
Sound Level Meter / RTA
• Applications– Live Sound Events– Environmental Noise Monitoring
XL2
Sound Level Meter / RTA
• Measures actual level, Leq, Lmin, Lmax, LCpeak, …
• Frequency weighting A, C, Z• Time Weighting F, S, I*• Linear operating range >100dB• XL2 accuracy acc. IEC 61672, class
1• Logs automatically to Mini-SD card• Real time clock
*optional
XL2
Sound Level Meter / RTA
Extended Acoustic Pack • Percentiles %: 1, 5, 10, 50, 90,
95, 99%• Time Weighting: Impulse• Sound Pressure Level LIeq
• Sound Exposure Level LAE• TaktMax as specified in DIN
45645-1• WAV-file recording (ADPCM) • Voice note recording• High-resolution FFT up to 0.3Hz
steps
XL2
Sound Level Meter / RTA
• All measurement results are simultaneously available.
• Select the available levels to be shown on the XL2 display
XL2
Sound Level Meter / RTA
• 3 or 5 levels may be displayed simultaneously in different selectable sizes
XL2
Sound Level Meter / RTA
• Displays two spectra simultaneously
• Resolution selectable• Broadband values displayed in
parallel• Measurement range selectable• Measurement time and control
XL2
Sound Level Meter / RTA
• Pre-defined limits for all levels• Firmware V1.00 operates with
fixed limits– Level ok Limit LED is
GREEN – Level near limit LED is
YELLOW– Limit exceeded LED is RED
XL2
Live Sound Challenges
• Sound pollution protection limits maximum level in audience area.
• Loudest audience position is commonly not accessible for measurements.
• XL2 offers a wizard to measure correction values k1 and k2 between loudest position and measurement point
Public listening area
Stage
FOH
Loudest accesible position Audience position
MeasurementPosition
k1 = Difference in LAeq
k2 = Difference in LCPeak
XL2
Correction Factor Wizard
• Run Pink Noise in the auditorium
• Measure level at the loudest position
• Measure level at the measurement point, e.g. at the mixing desk FOH
• XL2 stores results with time stamp and displays the calculated correction values k1 and k2
XL2
Audio Analyzer
• Balanced XLR, unbalanced RCA input
• -112 dBu to 30 dBu (1.4uV to 25V)
• Residual THD+N <-100dB (0.001%)
• Frequency range: 9 Hz to 20 kHz
• Frequency accuracy: 0.003%• Loudspeaker and headset
output for signal monitoring
XL2
FFT Analyzer
• Measures LZF and Leq simultaneously
• Real time FFT in 3 ranges– 10 Hz - 220 Hz with 1.5 Hz steps– 20 Hz - 1.7 kHz with 15 Hz steps– 200 Hz - 20 kHz with 150 Hz
steps
• High-resolution FFT including zoom mode up to 0.3 Hz steps with Extended Acoustic Pack
XL2
RT60 Analyzer
• Measures 8 octave bands from 63 Hz – 8 kHz according to ISO3382 by Schroeder-method
• Auto triggering• Auto averaging• Measurement error indication• Stimulus:
– Gated pink noise– Impulse sound source
XL2
Polarity Testing
• Checks polarity of speaker cabinets, individual drivers and line signals
• Positive/Negative detection • Using internal microphone or
input signal of XLR/RCA connector
XL2
Polarity Testing
• In-depth verification of the polarity - frequency relation for speaker cabinets or other multi-way-systems
• Sample Screenshot left:The major part of the signal energy is measured in the mid-range frequency bands, thus the overall displayed polarity is NEGATIVE.
XL2
Propagation Delay
• For accurate setup of delay line arrangements
• Measures delay between electrical reference and acoustical signal
• Relative measurements supported
• Displays distance to speaker in meter or feet
XL2
STI-PA Analyzer
• Measures speech intelligibility of public announcement systems
• Complies with IEC 60268-16 (2003) and NFPA 72
• Displays STI and CIS results• Shows table of modulation
indices and Leq’s• Supports ambient noise post
processing
*optional
XL2
Application Profiles
• XL2 supports application profiles
• Application profile may disable and hide any selections or measurement functions
• Allows fixed operator interfaces for basic users
• Firmware V1.0 offers a set of fixed application profiles
XL2
Store and Log Results
• Results stored as ASCII files• Storing all or subsets of
measurements results• Adding a voice note to
measurement* • Records the ADPCM compressed
audio signal in parallel*
*optional
XL2Automated Sensor
Detection
• Automatically detects microphone type– Reads sensitivity– Reads product data– Shows last calibration
• ASD CableExtension cable tandem up to 20 m supported
XL2
Powering Concept
• Rechargeable Li-Po battery– included– typical battery lifetime > 5 hours
• Dry cell batteries– type AA, 4 x 1.5 V– typical battery lifetime > 4 hours
• Mains power supply 9 VDC– charges Li-Po battery in operation
Measurement Microphones
XL2
Measurement Microphones
• Omni-directional, pre-polarized condenser, free-field microphone
• Build-in Pre-amplifier• Electronic Data Sheet installed • Phantom Power 48 VDC• High dynamic range • Wide frequency range• Low residual noise
M2210 M4260
XL2
Comparison of Microphones
M4260M2210 –Extended Performance
Capsule / Transducer 1/4”
permanently installed capsule
1/2” detachable capsulewith 60UNS2 thread
Flatness
Class 2 (IEC61672-1)< ±1 dB @ 100 Hz - 1250
Hz< ±3 dB @ 20 Hz - 20 kHz
Class 1 (IEC61672-1)< ±1 dB @ 100 Hz - 4
kHz< ±2 dB @ 10 Hz - 20
kHz
Frequency Range 20 Hz - 20 kHz 1 Hz - 20 kHz
Residual Noise Floor typical 24 dB(A) 18 dB(A)
Upper Limit of Dynamic Range typ.
136 dBSPL 145 dBSPL
Sensitivity typical -30 dBV/Pa ±4 dB
(30 mV/Pa @ 1kHz)-34 dBV/Pa ±3 dB
(20 mV/Pa @ 1kHz)
XL2 Accessories
XL2
Accessories
• Ever-Ready pouch– Detachable front flap – Connectors accessible– Zipper
• EXEL System Case– Compartments for XL2, MR-PRO,
M4260 or M2210– Accessories, battery and
adapter
XL2
Accessories
• Battery Charger– Includes spare battery– Connects to 100-230V AC – Intelligent charger controller
• Spare Battery– rechargeable spare battery– Li-Po battery
XL2
Accessories
• ASD Cable– For extended connections of the
measurement microphones M4260 or M2210
– Maintaining the automated sensor detection
– Length = 5 meter (16 feet)
• External AC power supply– Suitable also for use with MR-
PRO– Operates XL2 and chargers Li-Po
battery in parallel
XL2
Firmware Options
• Extended Acoustic Pack– Percentiles: 1%, 5%, 10%, 50%,
90%, 95%, 99%– Time Weighting: Impulse – Sound Pressure Level LIeq, Sound
Exposure Level LAE – TaktMax and values as specified in
DIN 45645-1 – WAV-file recording (ADPCM) – Voice note recording for individual
measurements – High-resolution FFT including zoom
mode up to 0.3 Hz steps at 10 Hz - 20 kHz
XL2
Firmware Options
• STI-PA Option– Measures speech intelligibility of
public announcement systems– Complies with IEC 60268-16
(2003) and NFPA 72– Displays STI and CIS results
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