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Sound Pressure Level
measurement of a sound wave's pressure relative to a reference value. AKA: SPL
See Also: SPL
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PXIe-4463, 51.2 kS/s, 2-Output PXI Sound and Vibration Module
783086-02
51.2 kS/s, 2-Output PXI Sound and Vibration Module - The PXIe‑4463 offers high dynamic range and THD+N for audio, acoustic, and vibration applications. It provides the high precision and dynamic range necessary for the most stringent audio generation requirements in a modular form factor. The PXIe‑4463 contains two 24-bit digital‑to‑analog converters to allow for fully differential simultaneous generation. Complete with three gain ranges, the PXIe‑4463 can generate current with programmable, per channel output configurations. The two timing engines allow you to perform multisample-rate applications on a single module and independently start and stop channels on a single module.
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PCI-4462, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 4-Input Sound and Vibration Device
779309-01
The PCI‑4462 is a high-accuracy data acquisition module specifically designed for sound and vibration applications. It provides simultaneous four-channel dynamic signal acquisition with six programmable gain settings for making high-accuracy, frequency-domain measurements. The PCI‑4462 also includes software-configurable AC/DC coupling and integrated electronic piezoelectric (IEPE) conditioning to ensure precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications for dynamic signal acquisition devices include audio test; automotive test; noise, vibration, and harshness (NVH) analysis; and machine condition monitoring.
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PXIe-4463, 51.2 kS/s, 2-Output PXI Sound and Vibration Module
783086-01
The PXIe‑4463 offers high dynamic range and THD+N for audio, acoustic, and vibration applications. It provides the high precision and dynamic range necessary for the most stringent audio generation requirements in a modular form … factor. The PXIe‑4463 contains two 24-bit digital‑to‑analog converters to allow for fully differential simultaneous generation. Complete with three gain ranges, the PXIe‑4463 can generate current with programmable, per channel output configurations. The two timing engines allow you to perform multisample-rate applications on a single module and independently start and stop channels on a single module.
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PCI-4461, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 2-Input/2-Output Sound and Vibration Device
779307-01
The PCI‑4461 is a high-accuracy data acquisition module specifically designed for sound and vibration applications. It provides simultaneous two-channel dynamic signal generation and simultaneous two-channel dynamic signal acquisition with six gain settings to configure the input range. The PCI‑4461 also includes software-configurable AC/DC coupling and integrated electronic piezoelectric (IEPE) conditioning to ensure precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications include audio test; automotive test; noise, vibration, and harshness (NVH) analysis; and machine condition monitoring.
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PXIe-4492, 204.8 kS/s, 113 dB, 2 Gains, 0.5 Hz AC/DC-Coupled, 8-Input PXI Sound and Vibration Module
781490-01
204.8 kS/s, 113 dB, 2 Gains, 0.5 Hz AC/DC-Coupled, 8-Input PXI Sound and Vibration Module - The PXIe‑4492 is designed for sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the module is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4492 delivers simultaneous sample on all channels. In addition, it includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gains, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.
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Dynamic Pressure Sensors
Columbia Research Laboratories
Dynamic Pressure Sensors contain low pressure measurements, high pressure transient measurements. Dynamic Pressure Sensors can measure a wide range of varying high intensity sound pressure and high level dynamic pressure events.
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Mouth Simulator
BO1032
As consumers demand smaller devices that produce better sound and need better microphones, you need to test your microphones using more than a simple 1kHz tone. Sweep tests require a good mouth simulator that can produce a sweep with a known steady SPL.
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Smaart SPL
Smaart SPL offers the same complete SPL measurement toolset from Smaart v8 in a purpose-built standalone package, with an interface designed for simplicity and speed. Smaart SPL provides a powerful and full-featured solution for monitoring, metering, and logging SPL but with a format and price point more accessible to users who don’t require the real-time frequency and impulse response mode analysis capabilities of our flagship Smaart v8 software.
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Sound Level Meters
LXT1-QPR
Quantitative measurements of sound pressure levels generated by firearms with & without suppression devices and silencers.Many firearm examiners are tasked with determining whether installation of a suppressor or silencer on a firearm results in a “perceptible” reduction of the sound pressure level of a gun. The Larson Davis SoundTrack LxT® provides this functionality utilizing an easy-to-use handheld platform.
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SPL Calibrator -124 dBSPL @ 1 kHz
511ES124
The 511ES124 is designed to provide 124 dBSPL at 1 kHz to meet the needs of the low sensitivity microphones found in many high SPL measurement applications. The microphones used in Car Stereo competitions like dB Drag racing, IASCA, and USAC have had their sensitivities reduced to the point where 94 dBSPL may no longer be adequate for calibration.
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Test Chambers
Anechoic
Free Field Test Chamber for sound pressure level measurement, sound power level determination, acoustic research and audio measurement applications
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Small Device Noise Emission Test System
The Small Device Noise Emission Test System from VIacoustics is a turnkey solution for the measurement of noise emissions of small devices typically used in computers, consumer electronics, appliances and automobiles. The system includes all hardware and software necessary (see the components tab) for the determinations of sound power levels (1/3 octave band and A-weighted), emission sound pressure levels (normalized 1/3 OB, A-weighted and high resolution FFT) and *ISO 532B loudness. The system is designed to be operated by a technician for production level testing or to be used by an engineer in the product development process.
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Real-time 1/1, 1/3 Octave Analysis Software
DS-0323
This software analyzes the 1/1 and 1/3 octave bands for 2 - 32 channels (2 - 64 channels when two units are connected ) in real-time from 0.5 to 20 kHz. The filter is compatible with the IEC, JIS, and ANSI standards. The equivalent continuous A-weighted sound pressure level (Laeq) and the single-shot sound exposure level (Lae) are calculated simultaneously by setting measurement time. Variations in level (time series) for each band can be saved for up to 2,000 points.
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Acoustic Control System
m+p VibControl performs acoustic testing in reverberation chambers and direct field environments as well as progressive wave tube testing. It is a fully automatic digital control system, providing fast, accurate and repeatable control of high-level noise to a reference octave band spectrum and the overall sound pressure level (OASPL). The control guarantees a high level of product safety.
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CAD Tool
Sabin
Sabin is a powerful CAD tool for room acoustics engineers. Based on statistical calculations, it determines the acoustical parameters of a user defined room, such as the reverberation time T60, the sound pressure level, and the RASTI as a measure of speech intelligibility. These parameters are updated dynamically, while the user is changing simulated sound sources and absorbing materials.
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Acoustic Control
Acoustic Control provides accurate control for high-level noise testing of reverberant chambers or progressive wave tubes. Based on the Spider hardware platform, Acoustic Control achieves quick and reliable control of the noise level to the reference octave spectrum and the overall sound pressure level (OASPL). Included safety features guarantee the safety of the unit under test.
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Acoustic Testing
Our acoustic testing experience includes acoustic qualification and evaluating sound pressure levels. We utilize microphones, pressure trans-ducers, and an acoustic intensity meter to record acoustic measurements.
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Medium Capacity Single Point Bending Beam Load Cells
SPL SERIES
The SPL Series single point load cell simplifies scale designs, packaging machinery and other industrial weighing equipment. Their single point design eliminates the need for multiple load cells and summing boxes, and thus, simplifies the design and reduces the cost. All SPL Series load cells employ 100% aluminum construction and features a moisture proof sealant which also makes them suitable for damp environments.
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Basic Sound Level Measurement System
The system utilizes a National Instruments CompactDAQ data acquisition device and the Nelson Acoustics Trident software application to provide a basic, computer based, sound pressure level measurement system.
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Dual-Channel Precision Audio Analyzer with Built-In Condenser Measurement Mics
PAA6
Essential tools, such as the Phonic PAA6 Professional Audio Assistant generally wind up at the bottom of pro audio wishlists after esoteric preamps, compressors, and EQs. But more often than not, the key to great sound lies in the utilitarian gear, particularly, the Phonic PAA6 audio analyzer. If you want to get the most out of your studio equipment or PA system, the PAA6 should be at the top of your bucket list. A highly accurate measurement tool, the elegant touch screen interface of the PAA6 offers unfettered access to 61-band real-time spectrum analysis; Fast Fourier Transform (FFT); sound pressure (SPL) and dBu/dBV line voltage measurement; EQ setting; phase and polarity check; LEQ (equivalent continuous noise level); audio oscilloscope; and RT-60 functions. The PAA6 also has two built-in condenser measurement mics that can be used in six different positions. If sound is your product or passion, the Phonic PAA6 is perhaps the wisest investment you can make for your studio or sound reproduction system. Whether you're setting up monitors, treating room characteristics, calibrating listening levels, or want to know the harmonic distortion and noise characteristics of your workhorse preamps to ensure clean mixes, the Phonic PAA6 is your key to the best possible quality sound.
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Sound Level Meter & Real-time Analyzer
824
The Larson Davis System 824 combines advanced sound level meter and real-time analyzer capabilities into a rugged, user-friendly, ergonomic package. The base unit is an Integrating Sound Level Meter (ISM) that meets Type 1 Standards and offers simultaneous measurement of sound pressure levels using fast, slow, and impulse detectors, for A, C, and flat frequency weightings. This feature, termed ANY LEVEL™ measures 48 sound pressure parameters at once with a linear, 105 dB range. With firmware enhancements, the base unit expands as needed to accommodate multiple data processing requirements
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Sound Pressure Level Logging Software
RT-Capture 3
RT-Capture 3 is a SPL (Sound Pressure Level) logging software supporting a number of national and international standards. It is intended for self-governance of sound levels during music events, concerts and festivals.RT-Capture 3 has octave and third octave logging implemented for environmental noise control.RT-Capture has integrated networking for web-server over LAN and remote control and display of up to 250 units.RT-Capture uses a standard PC-soundcard and supports measurements from two microphones.RT-capture records a log-file with SPL-data (such as Leq, LAmax, LCpeak) and make compressed sound recordings of the audio signal.The log-file can be watched graphically and audio can be played back from a cursor point in the graph. The SPL-measurement is validated to the IEC 61672 standard and other international standards.Protocol according to several national standards can be printed. A scheduler can be set to email the log-file during logging.
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Remote Control Voice Recognition Tester
BK3013
Ready to help you take on the leading edge of consumer technology, we have designed a machine that tests microphones which both use RF and are used for voice recognition. The BK3013 runs a uniform SPL sweep to calculate FRF and also runs an SPL sweep that allows you to test the SPL range of your mic. Our "Test Shop" program will show you the results in graphs and allows you to have the computer check specific points in the test.
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Noise Sources
This power amplifier ensures that you get the maximum sound pressure level out of the Norsonic range of speakers.
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High Sensitivity Pressure Sensors
High sensitivity ICP® pressure sensors are for low pressure measurements requiring excellent resolution and small size. They are used to measure small dynamic hydraulic and pneumatic pressures such as turbulence, noise, sound, and pulsations, especially in adverse environments. They are capable of measuring high-intensity sound pressures from 111 to 210 dB at any static pressure level from full vacuum to 1,000 psi (6,895 kPa).
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Anechoic Chambers
Eckel Noise Control Technologies
Anechoic Chambers are echo-free enclosures with a sound energy absorption level of 99% to 100%, or a reflected sound pressure level of 10% or less. The frequency at which the energy absorption drops below 99%, or the pressure reflection exceeds 10%, is known as the low-frequency cut-off. Sound absorption is obtained by lining the walls, ceilings, and floor with wedges or other sound absorbing elements or SuperSoft panels, depending on performance level required and cut-off desired.
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Digital Sound Level Meter
Model KM 926
Kusam Electrical Industries Limited
• KM 926 designed according to the IEC 651 TYPE 2 & ANSIS1.4 TYPE 2 for sound level meter.• Instantaneous sound measure function.• Measurement Range : 30 ~ 130decibel• With two equivalent weighed sound pressure levels, A & C.• Fast & Slow dynamic characteristic modes.• AC & DC signed output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.
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Sound Level Calibrator
TM 100
Kusam Electrical Industries Limited
• Standard : Confirms to IEC 942 Class 1.• Output Sound Level : 94dB and 114dB under reference.• Accuracy : ±0.3dB (20°C, 760 mm Hg)• Frequency of 1000 ± 0.1% Hz allows calibration with A / B / C or D weighting networks or linear.• Low Battery Indicator (LED).- Operating Temperature range : -10 ~ +50 C- Storage Temperature range : -40 ~ +65 C (with batteries removed).- Temperature Coefficient : 0 ~ 0.01 dB / C• Calibration of “1 and ½” ceramic microphones.• Altitude Effects : Approx. 0.1 dB decrease for each 2000 feet increase in altitude fromsea level to 12,000 feet elevation, or comparable atmospheric pressure change(approx. every 50 mm of Hg decrease).• Battery : Single 9V transistor Battery. (NEDA 1604)• Battery Life : Approx 100 hours.• Dimension : 48 x 48 x 138mm
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Sound Level Meters
A sound level meter is used for acoustic (sound that travels through air) measurements. It is commonly a hand-held instrument with a microphone. The diaphrahm of the microphone responds to changes in air pressure caused by sound waves.
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Sound Level Logger-limiters
Frequency Filter Sound Level Limiter-recorder that controls by emission Sound Pressure Level or reception SPL.
