Sound Pressure Level
measurement of a sound wave's pressure relative to a reference value. Also known as: SPL
See Also: SPL
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Product
Acoustic Testing
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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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Product
Handheld Audio Analyzer
PAA3X
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The PAA3X is a highly accurate handheld audio analyzer that gives sound engineers a rich array of sound analysis tools. The system features both 61-band and 31-band real time spectrum analysis, RT60 reverb time measurement, SPL and line meter, internal signal generator, EQ setting program, microphone calibration and speaker phase checking abilities. All functions and menus can be accessed through a central jog dial, leaving your other hand free to adjust audio settings. The large color LCD screen has an adjustable brightness to help you see in a dark or well-lit environments alike. The PAA3X also features a "screen capture" function allowing users to save images of the screen to an SD card in BMP format for later reference. The detachable precision microphone can be placed remotely via the included 5-meter extension cable, offering flexible on-site operation management. With all this plus a built-in rechargeable lithium-ion battery, the PAA3X is a must-have multifunctional tool for all serious audio engineers.
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Product
Sound Level Logger-limiters
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Frequency Filter Sound Level Limiter-recorder that controls by emission Sound Pressure Level or reception SPL.
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Product
Anechoic Chambers
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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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Product
Acoustic Calibrators
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Acu-Vib Electronics Acoustic & Vibration
a portable precision device that generates a highly stable, known sound pressure level at a specific frequency. It is primarily used by sound engineers and technicians to verify, test, and adjust the accuracy of sound level meters and microphones before and after taking measurements.
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Product
Noise Sources
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This power amplifier ensures that you get the maximum sound pressure level out of the Norsonic range of speakers.
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Product
Sound Power Solution
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The Sound Power Solution is part of the family of solutions proposed by OROS for Acoustic applications. This Solution allows to measure Sound Power based on the measurement of sound pressure levels at microphone positions around a source under test. Thus, the Sound Power Solution is complementary of the Sound Intensity Solution that is based on the measurement of the sound intensity as recommended by ISO 9614. Using the OROS Solution, based on a task dedicated interface that guides the user step by step, Sound Power is measured in an easy and efficient way.?
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Product
Sound Quality Evaluation Function for O-Solution
OS-0525
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The sounds generated from the equipment are mainly measured by evaluation based on general analysis such as sound pressure level, FFT analysis and 1/3 Octave analysis. However, since those analysis don’t take into consideration the human hearing characteristics enough, sounds with even the same analysis result may give different impression.When a human listens to a sound, various sensations such as loudness, sharpness, and roughness occur.
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Product
Analyzer
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The Analyzer is a combination of a sound pressure level (SPL) meter and a full range multiple bands frequency analyzer. It is mainly designed for audio professionals who need to evaluate different working environments (e.g. studios, live stages)... that’s why it’s perfect for anyone who’s in need of acoustical analysis!! It is easy to use and comes with amazing features only known from professional acoustic tools.
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Product
NI-9231 and cDAQ-9171 USB Sound and Vibration Measurement Bundle
865665-01
Sound and Vibration
NI-9231 and cDAQ-9171 USB Sound and Vibration Measurement Bundle - The USB Sound and Vibration Measurement Bundle with NI-9231 and cDAQ-9171 includes the NI-9231 C Series Sound and Vibration Input Module and the cDAQ-9171 CompactDAQ Chassis for sound and vibrations measurements. This bundle provides a portable, USB-based sensor measurement system that helps you measure signals from integrated electronic piezoelectric (IEPE) and non IEPE sensors such as accelerometers, tachometers, and proximity probes. The included NI-9234 features 8 channels with built-in anti-aliasing filters that automatically adjust to your sample rate. Additionally, the bundle supports simultaneous sampling and high dynamic range measurements necessary for modern measurement microphones and accelerometers.
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Product
sbRIO-9234 , Non-Enclosed, 4-Channel, 51.2 kS/s/channel, ±5 V, C Series Sound and Vibration Input Module
782718-01
Sound and Vibration
Non-Enclosed, 4-Channel, 51.2 kS/s/channel, ±5 V, C Series Sound and Vibration Input Module - The sbRIO‑9234 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The sbRIO‑9234 is also compatible with smart TEDS sensors. The sbRIO‑9234 delivers a wide dynamic range and incorporates software-selectable AC/DC coupling and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti‑aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking. Non-enclosed modules are designed for OEM applications.
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Product
NI-9232, 3-Channel, 102.4 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module
782000-02
Sound and Vibration
3-Channel, 102.4 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module - The NI‑9232 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The NI‑9232 is also compatible with smart TEDS sensors. The NI‑9232 incorporates software-selectable AC/DC coupling, IEPE open/short detection, and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
PCI-4462, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 4-Input Sound and Vibration Device
779309-01
Sound and Vibration
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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Product
USB-4431, 102.4 kS/s, 100 dB, 0.8 Hz AC/DC Coupled, 4-Input/1-Output Sound and Vibration Device
780164-01
Sound and Vibration
The USB-4431 is designed for sound and vibration measurements. Input channels incorporate integrated electronic piezoelectric (IEPE) signal conditioning for accelerometers and microphones. The four USB-4431 input channels simultaneously digitize input signals. The analog output (AO) channel is ideal for stimulus-response tests and can be synchronized to the AI channels.
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Product
NI-9230, 3-Channel, 12.8 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module
783824-02
Sound and Vibration
3-Channel, 12.8 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module - The NI‑9230 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The NI‑9230 is also compatible with smart TEDS sensors. The NI‑9230 incorporates software-selectable AC/DC coupling, IEPE open/short detection, and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
PXI Sound and Vibration Module
Sound and Vibration
PXI Sound and Vibration Modules are designed specifically for applications like audio test and measurement, noise and vibration diagnostics, machine condition monitoring, automotive test, noise, vibration, and harshness(NVH) analysis, and laboratory research. They provide software-configurable AC/DC coupling, antialiasing filters, and IEPE conditioning to ensure precision measurements with microphones, accelerometers, and other transducers with large dynamic ranges.
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Product
PXIe-4463, 51.2 kS/s, 2-Output PXI Sound and Vibration Module
783086-02
Sound and Vibration
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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Product
NI-9234 and cDAQ-9171 USB Sound and Vibration Measurement Bundle
865664-01
Sound and Vibration
NI-9234 and cDAQ-9171 USB Sound and Vibration Measurement Bundle - The USB Sound and Vibration Measurement Bundle with NI-9234 and cDAQ-9171 includes the NI-9234 C Series Sound and Vibration Input Module and the cDAQ-9171 CompactDAQ Chassis for sound and vibration measurements. This bundle provides a portable, USB-based sensor measurement system that helps you measure signals from integrated electronic piezoelectric (IEPE) and non IEPE sensors such as accelerometers, tachometers, and proximity probes. The included NI-9234 features 4 channels with built-in anti-aliasing filters that automatically adjust to your sample rate. Additionally, when used with NI software, the bundle provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
PCI-4461, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 2-Input/2-Output Sound and Vibration Device
779307-01
Sound and Vibration
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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Product
NI-9232, 3-Channel, 102.4 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module
784397-01
Sound and Vibration
3-Channel, 102.4 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module - The NI‑9232 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The NI‑9232 is also compatible with smart TEDS sensors. The NI‑9232 incorporates software-selectable AC/DC coupling, IEPE open/short detection, and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
SPL Calibrator -124 dBSPL @ 1 kHz
511ES124
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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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Product
PXIe-4463, 51.2 kS/s, 2-Output PXI Sound and Vibration Module
783086-01
Sound and Vibration
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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Product
NI-9234, 4-Channel, 51.2 kS/s/channel, ±5 V, C Series Sound and Vibration Input Module
779680-01
Sound and Vibration
4-Channel, 51.2 kS/s/channel, ±5 V, C Series Sound and Vibration Input Module - The NI‑9234 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The NI‑9234 is also compatible with smart TEDS sensors. The NI‑9234 delivers a wide dynamic range and incorporates software-selectable AC/DC coupling and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
NI-9250, 2-Channel, 102.4 kS/s/ch Simultaneous, ±5 V, C Series Sound and Vibration Input Module
783827-01
Sound and Vibration
2-Channel, 102.4 kS/s/ch Simultaneous, ±5 V, C Series Sound and Vibration Input Module - The NI‑9250 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers and microphones. The NI‑9250 is also compatible with smart TEDS sensors. The NI‑9250 delivers a wide dynamic range and incorporates software-selectable AC/DC coupling and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
216 KS/s, 24-Bit, 8-Ch PCIE Card For IEPE Sound And Vibration
PCIE-1802
Sound and Vibration
24-bit resolution ADCs with 115 dB dynamic rangeWide input ranges from ±0.2 V to ±10 VSoftware selectable AC/DC couplingSoftware configurable 4 or 10 mA Integrated Electronic Piezoelectric Excitation (IEPE)Built-in anti-aliasing filter8 simultaneously sampled analog inputs up to 216 kS/sMultiple card synchronizationFull auto-calibration
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Product
NI-9230, 3-Channel, 12.8 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module
783824-01
Sound and Vibration
3-Channel, 12.8 kS/s/channel, ±30 V, C Series Sound and Vibration Input Module - The NI‑9230 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers, tachometers, and proximity probes. The NI‑9230 is also compatible with smart TEDS sensors. The NI‑9230 incorporates software-selectable AC/DC coupling, IEPE open/short detection, and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Product
Sound Level Meters
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Advanced technology ensures the accuracy and stability of the sound level meter.
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Product
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
Sound and Vibration
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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Product
Sound Level Meters
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Acoustic Data These definitions are intended simply as an aid to understanding and for this reason, some are not strictly scientifically accurate. For correct formal definitions, consult IEC standards 60651, 60804, 60942, 61252 and IEC 61672: 2003 part 1.
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