Sound Sources
Standard for calibrating sound level meters and sound measuring systems.
See Also: Acoustic Sources, Acoustic Cameras
- Applied Instruments, Inc.
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RF Noise Source
NS-3
The NS-3 Broadband RF Noise Generator provides an extremely flat AWGN (Additive White Gaussian Noise) signal from 5 to 2150 MHz. The output level adjusts in 0.1 dB steps over a 30 dB range.The bench-top configuration is standard and an optional two unit rack enclosure is available. The RS232 or USB remote control interface simplifies its use in automated test and factory ATE environments. The NS-3's combination of range, versatility and value make it the ideal general purpose broad-spectrum signal source for bench and ATE applications, including C/N, BER, MER, PER testing and rain fade simulation.
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Impulsive Sound Source
BAS006
The BAS006 is an innovative device used to create impulsive noise that includes low frequency energy and avoids problems like secondary bounce. These characteristics make it a great choice for quickly measuring reverberation time when the complexity and weight of a speaker and amplifier is not needed.
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Omnidirectional Sound Source
DS3
The Dodecahedron Speaker Set offers a lightweight, yet powerful signal source for room & building acoustic measurements. The optimized frequency response ensures precise measurements in accordance with the ISO 16283 and the ISO 3382 standards. The set includes the robust omnidirectional DS3 odecahedron Speaker and the remote-controlled PA3 Power Amplifier. Equalized acoustic frequency spectrum from 100 Hz to 8 kHz.
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Omnidirectional Sound Source
OmniPower
OmniPower Type 4292-L is an omnidirectional sound source, intended to be used in acoustical measurements for which a uniform spherical sound radiation is required.OmniPower complies to the ISO 3382, ISO 140 and DIN 52210 standards, and is used in both room acoustics and building acoustics applications.
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Sound Source Localization
In order to optimize product sounds, it is necessary to know the exact point of origin of a sound source. This makes possible to identify the cause of disruptive sound components and rectify these effectively, optimize sound radiation and thereby achieve the desired sound experience. The ease of use and advanced beamforming algorithms of the HEAD VISOR acoustic camera allow sound sources to be located precisely at the blink of an eye.
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Sound Power Reference Source
Qref
Precision omni-directionallity in all directions, horizontal and vertical plane. This source has a frequency range of application between 100 and 8000 Hz (third octave bands) Despite only weighing 1.4 kg and having a diameter of 105 mm, it produces a maximum sound power level of Lw 104 dB.
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Sound Source And Power Amplifier
Designed for acoustic application, with strong signal transmission capability and flexible measurement.
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4ch Beam Forming Sound Source Visualization System
BF-3200/MI-5420A/BF-0310
Beam Forming is one of the sound visualization techniques that obtains the sound pressure distribution using the phase differece information from the sound source to the microphone, and makes it visualized with the color map.This technique requires a lot of microphones to cover a wide area and generally tends to increase the size of the system. By this Beam Forming system, Ono sokki achieved real time sound source visualization with just 4 microphones.
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Sound Intensity Measurement
Sound Intensity MeasurementA perfect tool for sound intensity level measurement and noise source determination brought to an entirely new level by Dewesoft. The solution brings a simple and intuitive measurement process while offering the utmost precision and industry unmatched adaptability.
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Sound Level Calibrator
521
Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
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Sound Level Calibrator
511E
Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
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Sound Logger Sensor
NUL-212
This sensor has two modes of operation. In slow mode it can be used to measure sound-pressure level in decibels. In fast mode it can display waveforms of different sound sources such as tuning forks and wind-chimes so that period and frequency can be determined.
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Sound Power Measurement
Sound Power Measurement SolutionDewesoft sound power measurement solution merges the best of both worlds: widely established sound power measurements with familiar, distinctive user interface and industry unmatched adaptability. Rate and compare different noise sources with ease and exactness while simultaneously monitor any number of additional parameters.
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Sound Power Solution
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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Directional Source
BAS003
The BAS003 Source is designed to generate homogeneous sound fields using random noise in compliance with the following standards: Building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-3, ASTM E90, ISO 140-5, ASTM E966). The BAS003 is typically used to generate a noise in a free-field for the evaluation of the transmission loss index of a façade. The available high-efficiency power amplifier, BAS002, is light and can be remotely controlled for easy use in the field.
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Omnidirectional Source
BAS001
The BAS001 Source is designed to generate omnidirectional sound fields for making standard compliant measurements including: reverberation time (ISO 3382, ASTM E2235), building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-4 ISO 140-3, ASTM E336, ASTM E90, DIN 55 210). The BAS001 is typically used to saturate a room with a uniform acoustic field. The available high-efficiency power amplifier has no fan for cooling, allowing measurements in quiet environments, like those in reverberation time applications.
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Class 1 Sound Level Calibrator
HD2020
The HD2020 sound level calibrator is a portable, battery operated sound source, suitable for sound level meters (portable and laboratory) and acoustic stations.
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Sound Terminal Digital Audio Subsystems
A breakthrough in digital audio systems, Sound Terminal™ digital audio ICs enable space-constrained audio applications, such as flat-screen TVs and MP3 docking stations, to deliver high-quality, room-filling sound. Using techniques such as Full Flexible Amplification (FFX), and integrating advanced DSP processing features such as multi-band DRC, this family enables a fully digital stream from sound source to loudspeaker. In application, this produces improved audio performance, reduced cost, and smaller size, making it possible for leading home-entertainment equipment manufacturers to deliver best-in-class audio experiences for consumers.
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NI-9231, 8-Channel, 51.2 kS/s/channel, -5 V to 5 V, C Series Sound and Vibration Input Module
783610-01
8-Channel, 51.2 kS/s/channel, -5 V to 5 V, C Series Sound and Vibration Input Module - The NI-9231 is a high-density sound and vibration module that can measure signals from integrated electronic piezoelectric (IEPE) and non-IEPE sensors such as accelerometers, tachometers, and proximity probes. It can perform the high dynamic range measurements necessary for modern measurement microphones and accelerometers and features simultaneous sampling. The NI-9231 incorporates both a TEDS input path and 2 mA of IEPE signal excitation source that can be turned on and off, removing the need for external sensor power and reducing the complexity of the data acquisition system.
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Acoustic Analysis
Noise is increasingly the subject of new regulations for the protection of human health and safety as well as for improving the environment in general. As well as sound levels, the perceived sound quality of products from washing machines to vehicles is often an important part of the customer buying decision so must be considered during product development. m+p Analyzer for noise and vibration measurement and analysis provides a full range of capability for these applications. Real-time fraction...show more -
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Acoustic Camera
SONASCREEN®
The handheld acoustic camera SONASCREEN generates acoustic images from both the audible and ultrasound frequency range. The device locates sound sources in real time and displays the results immediately on the screen. Furthermore, the camera provides audible feedback through industrial headphones. We make ultrasound audible and visible.
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Acoustics
When it comes to selecting a microphone for product tests—whether for sound power, sound quality, or noise source location—there's no need to compromise to sacrifice quality or performance for affordability.
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Amplifier
BAS002
When coupled with the BAS001 omnidirectional speaker or BAS003 directional speaker, the BAS002 amplifier is the ideal sound source for making room and building acoustics measurements.
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Automation Monitor
The Automation Monitor is a diagnostic system for remote analysis and troubleshooting of semiconductor capital equipment. The monitor is capable of delivering synchronous streams from strategically located video cameras, sound devices and data sources on the equipment.
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Building Acoustics
Measurements to evaluate and improve Building Acoustics are typically made to analyze and design noise control from room to room, or from outside to inside. Noise sources such as music systems, televisions, appliances, traffic, aircraft, and manufacturing are all around us. The field of Building Acoustics evaluates and designs the materials and methods to insulate and isolate us all from these sound sources when we are at work, rest, or enjoying leisure time. The resultin...show more -
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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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Community Noise Prediction Software, Version 2
SPM9613
A low-cost computer program for analyzing community noise and sound propagation emitted from a variety of noise sources. The engineering software is based on the ISO 9613 parts 1 and 2 standards. SPM9613 provides calculations at specific field points (listeners) and predictions of A- and C-weighted sound level contours as well.
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Digital Telephone Hybrid
DMTH4
The DMTH4 integrates telephone lines, video codecs and external audio sources into the digital bus structure of DM Series processors so these sources operate as though they are another microphone or audio input in the sound system. The unit is much more than just a telephone interface. Instead, it is a complete DM Series digital matrix processor, with a 3-in/24-out digital matrix, automatic mixing and comprehensive signal processing on every input and output. In essence, it simply connects to telephone lines, video codecs and external audio sources instead of mic/line inputs and outputs and integrates seamlessly with DM Series matrix processors.
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Directional Microphone
MI-8100
MI-8100 is a shotgun type directional microphone which sharply catches the intended sound. This directional microphone is helpful for the removal of background noise in the simple sound source exploration and in abnormal sound detection. Flat frequency characteristic from 50 Hz to 20 kHz and sharp detection with high S/N ratio provide high sensitive detection of various sound coming from the specific direction. By combining the acoustic vibration monitor BL-1100, only the intended frequency or sound is focused and caught clearer.
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Doppler Sensor Modules
Doppler radar measures the Doppler effect, or an increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other.
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Engine Performance/Endurance Test System
Various types of test system as follows can be built up in combination with measurement control equipment and peripheral instruments (fuel flow meters, actuators, temperature control device, combustion analysis system, ECU monitor, OBD, sound and vibration measurement instruments, emission analyzer, smoke meter etc.)·Traveling fuel economy test·Gas emission test·Output performance test·Deterioration/endurance test·Combustion analysis·Sound source probing
