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Sound Sources
Standard for calibrating sound level meters and sound measuring systems.
See Also: Acoustic Sources, Acoustic Cameras
- Pickering Interfaces Inc.
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PXI Source Switching Module
40-618A-001
The 40-618A PXI Source Switching Module consists of 12 separate 4-channel multiplexers and 44 uncommitted SPST relay contacts in a single width PXI module.
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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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Transducers
CRYSOUND offers an impressive array of sensor products, including measurement microphones, preamplifiers, artificial ear coupling cavities, and artificial mouth sound sources. These diverse products enable us to meet the specific needs of our clients with precision and innovation.
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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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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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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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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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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.
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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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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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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 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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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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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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Signal Analysis
Cross-Spectrum FFT Analysis
The program Cross narrow-band spectrum is used for evaluation of the interrelation between the signals’ parameters obtained from the two primary transducers installed at various parts of the controlled object. This program can be used for detection of noise source location, for sound absorption level evaluation and the researched object acoustic properties control, for evaluation of space-time distribution of the directional energy flux (Poynting vector), for the ground cross-section FR characteristic evaluation (Nakamura method), etc.
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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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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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Measurement Power Amplifier
Qam
The amplifier is DSP controlled, with a very straightforward operation. Included is a white/pink noise signal generator. The internal signal module provides low crest noise signals to be able to reach high power levels from sound sources or electromagnetic shaker. External input of signal is equally possible, with spectral linearisation or without. This can be used for music, RASTI or any other signal
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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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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 resulting data is useful for evaluating compliance with building codes and for proposing countermeasures for areas of concern. These measurements often involve creating and measuring an artificial sound source, and then measuring the resulting noise in receiver locations.
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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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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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Medium-size Reverberation Chamber
E-Series
The E medium-size multicavity Reverberation Chamber Series represents that state-of-the-art in reverberation chamber technology. The E-Series can make single measurements, batch tests, protocols or campaign tests for different frequency bands, different technologies and different channel models, running overnight without human intervention. Embedded frequency-, mode-, source- and platform-stirring in a double-shielded set of cavities allow Passive MIMO (Efficiency, Correlation, Diversity Gain, MIMO Capacity and others), Active MIMO OTA (TRP, TIS, TPUT, MTS, CQI, M2TxDT, RSRP, MCL and others) and Time-Domain MIMO (DL/UL TCP/UDP TPUT, RMS DS, STD, PL, CBW, Mute%, eNodeB, VDT-OTA) measurements up to 8x8 and 8DLCC to be performed for antennas and devices up to 50cm and 50kg ranging from 2G to 4G, covering all available cellular and wireless technologies to date, including wearables devices, sound acoustic mute, WLAN and W-IoT testing. There is no RC in the market more advanced than the E-Series.
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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 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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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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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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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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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.
