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Sound Sources
Standard for calibrating sound level meters and sound measuring systems.
See Also: Acoustic Sources, Acoustic Cameras
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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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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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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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Environmental Noise Monitors
Noise is one of the most complained about aspects of the environment, as not only does it have the potential to affect quality of life, it can also be difficult to monitor and therefore control. This type of noise is generally called environmental noise. There are many man-made sources of environmental noise, such as wind turbines, industrial sites, roads and traffic etc. If you are looking for equipment to measure noise in the workplace, look at sound level meters.
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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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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 Power Measurement
Dewesoft 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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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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UDP Test Tool, Flood Generator, VoIP Readiness Test Tool
The Multiprotocol Network Tester is a freeware, open source tool which enables you to measure quality of your IP network. It can also be used to generate UDP flood or to simulate UDP DoS attack. SIP call is usually established using a SIP session with a bidirectional RTP stream. SIP and RTP protocols are based on UDP transport protocol. UDP uses a simple transmission model without implicit reliability, ordering and data integrity. Each single UDP packet is transferred independently. The quality of a SIP call depends on delays and loss of IP packets in a network. Long delays lead to large RTP jitter and bad sound quality of a SIP call.
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Power Line Meter
The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 KHz 10 MHz (the frequency limits at which sensitivity is of the maximum sensitivity). A speaker plays the sound of the EMI, amplitude demodulated, in order to identify the EMI source (such as an AM or shortwave radio station vs. a motor vs. an electric arc).
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Infrasonic Array
Geosonic
An Infrasonic Array works like a sonic antenna, it is able to detect the magnitude and the source of sound waves. The Geosonic array is able to detect also pressure waves that the human ears can’t hear. A typical pressure wave is that generated by an explosion or by any physical phenomena (natural or human created) that generates an air pressure wave, which means that the Geosonic array can be used to detect a lot of phenomena, like:
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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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SparkFun I2C DAC Breakout
MCP4725
You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows you to send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!
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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
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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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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 fractional octave filters satisfy all acoustic applications from simple sound pressure, sound power for equipment legislative requirements, intensity mapping to isolate sources to sound quality metrics for product refinement.
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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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Non-Contact H.V. Detector
300 HP
Standard Electric Works Co., Ltd
● Protection class : IP66.● 3 LED indicators in a circle for easier viewing in any directions (360° LED indication).● 8 voltage settings : 240V, 2kV, 6kV, 11kV, 22kV, 33kV, 132kV, 275kV.● High bright LED visual indication.● With the longer shelter to make the 3 LED indicators brighter under the sun.● Sound indication.● The maximum voltage setting can be 500kV .● Self-test function.● Power source : 1.5V "C" type battery × 3.● High impact nylon casing.● Non-contact work by proximity.● Compatible with most hot sticks.● Lightweight, robust & compact. ● Suitable for indoor and outdoor use.● Easy access to batteries.● Special ranges are available upon request. ● The maximum detection range can be 500kV.● Meets EN 61326-1 CISPR 11 EN 61000-4-2 EN 61000-4-3 EN 61000-4-8
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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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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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Production Line Acoustic Test Chamber
PLATC
The Production Line Acoustic Test Chamber from GRAS is designed for quick and qualified acoustic test of cell phones, tablet PCs, Bluetooth speaker systems etc., including frequency response, THD, Rub & Buzz and microphone test using optional sound source. The chamber has a number of connections for injecting test and control signals to the test object (DUT).Benefits include:Repeatable testing and reliable dataEasy open/close for quick and safe change of DUTFlexible test jig for easy adjustment to new DUTFlexible microphone mounting for both front/backside speakers as well as edge-mounted speakersHigh quality, high sensitive 1/4” CCP measurementmicrophone included (G.R.A.S. 46BL)Individually calibrated frequency response** Compared to reference measurement in anechoic room
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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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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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Ultraminiature Microphone
MB-2200M10
MB-2200M10 is an ultra compact and lightweight microphone that enables measurement in narrow spaces, where have been difficult to install, without giving influence to the sound field.Its compact and lightweight features make you possible to perform measurements in a limited space, such as multi-point measurement, and measurement near the sound source. As CCLD type, the MB-2200M10 can be connected to Ono Sokki’s FFT Analyzer or CCLD supported devices.
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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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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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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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Sensors
We design, develop and produce state-of-the-art SIGINT sensors that seek, exploit, identify, and locate sources of RF energy, underwater sound, light, heat and other complex phenomena. These sensors recognize threats, gather intelligence, and allow our customers to make informed, strategic response decisions.
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Multi-purpose Cable Tester and Cable Tracer
165 CB
Standard Electric Works Co., Ltd
● 165 CB is an ideal tool which can test the correct pin configuration for different kinds of cables.● For testing: -RJ45/RJ11 -USB -COAX -BNC cable -Multi-wire cable● Auto-scan and manual-check function● Buzzer sound warning for wire status● 2 LED module indicators on the master unit which can do both of transmitter and receiver functions for RJ45/RJ11 cable testing. Users don't need to use the receiving unit.● 165 CB provides a variety for checking cable continuity, open status, short status and miss-wired. ● Ground (shielded ) wire test.● LED indication for wire status.● Power source : 9V battery
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Ultrasonic Leak Detector, Air, Gas, Vacuum, Steam
Leakshooter
With the LEAKSHOOTER ultrasound can be accurately measured. This allows to deliver a diagnosis. High frequency sounds are more directional than low frequency. This facilitates the search for the source, even in the presence of ambient noise. By adding the vision and the photo to the ultrasonic measurement SYNERGYS TECHNOLOGIES with its LEAKSHOOTER has significantly advanced this inspection technique.
