Nelson Acoustics Trident software is a real time multichannel, multiple analysis acoustic measurement application for use in acoustic and hearing sciences laboratory applications.
SigPro generates various noise sources or sine waves and plays WAV files at the desired sound pressure levels. Up to 8 independent sources can be generated real time of either pure tones, white, pink, red, full or 1/3 octave band-limited noise. WAV files of any sample rate can be looped to the desired length.
The Sound Quality Analyzer (SQA) from Nelson Acoustic Software conducts psychoacoustic sound quality analysis on standard audio WAV format files. SQA is a low cost, easy to learn to use, sound quality analysis tool for use with product and equipment noise emission recordings.
The WAV File Analyzer (WFA) from Nelson Acoustic Software is a post process analyzer for audio WAV Files that provides A-weighted and 1/3 octave band sound pressure levels versus user selectable time intervals. An integrated WAV file player allows users to listen to the file while examining the sound level vs time history. The Wave […]
Real Ear Attenuation at Threshold (REAT) Testing Application for Hearing Protection Evaluation
EZLD is an automated software data acquisition application for the testing of Level Dependent and Active Noise hearing protection systems and headsets in accordance with industry standards such as BS EN352, ISO 4869 and ANSI S12.42.
EZIL is a data acquisition application to conduct insertion loss testing on hearing protectors in accordance with industry standards.
Nelson Acoustic Software Impulsive Peak Insertion Loss Analyzer (IPILA) is a software tool designed for the management of time waveforms and the calculation of the Impulsive Peak Insertion Loss (IPIL) of a hearing protector in accordance with the ANSI S12.42-2010 standard. The IPILA software, working in conjunction with out Trident software, automates the […]
Nelson Acoustic Sofware Audiometric Research Tool is an extended frequency, highly configurable audiometer designed for hearing research professionals. It is designed to operate on National Instruments PXI-4461 and PXI-6220 series hardware. ART is an Hughston-Westlake based audiometer designed for research applications only. It provides researchers with detailed control of stimulus waveform, timing and presentation, […]
Analysis of medical equipment alarm signals for compliance with IEC 60601-1-8 requirements
EZQual is an automated software application for discrete frequency qualification of reverberation chambers in accordance with industry standards such as ISO 3741, ANSI S12.51, AHRI 220, and AHRI 260 and simplifies one of the most time consuming and tedious qualification methods in standardized acoustic testing.
EZDamp is an automated software application for the measurement of vibration damping properties of materials in accordance with standards such as ASTM E-756, often referred to as the Oberst Bar Method. Using the EZDamp application you can determine materials properties such as the loss factor, h, and Young’s modulus, E, or the shear modulus, G.
EZ2611 is an automated testing application designed to efficiently perform sound transmission tests on materials in an impedance (Kundt) tube to the ASTM E2611-09* standard.
EZ1050 conducts normal incidence acoustic impedance and sound absorption analysis per the ASTM E1050 standard. EZ1050 is a post process analyzer that works with audio WAV file recordings made using two microphones in a tube.
Our preferred form factor for laboratory measurement systems and high channel count systems.
A 2 input, 2 output PXI device for use in measurement applications that require both input and output, such as building acoustics measurements for sound transmission and sound absorption, or our REATPlus software application for hearing protector testing
2 analog output channels 24 bit, 204.8 kHz sampling; 118 dB dynamic range 3 analog gain settings NIST Traceable Calibration Installs in PXI expansion chassis such as PXIe-1073 or PXIe-1082 for high channel count applications National Instruments PXIe-4463
The National Instruments PXIe-4464 is our standard data acquisition card for laboratory sound pressure level measurement and sound power level determination of low noise products. It is also used for high speed time waveform recording for our impulsive measurement applications.
The best selection for very high channel count systems that require analog gain to accomodate low voltage transducers.
cDAQ chassis offer a wide variety of configurations from high channel count to wireless connectivity.
2-Channel, 102.4 kS/s/ch Simultaneous, ±5 V, C Series Sound and Vibration Input Module This 2 channel device for USB interface using either the cDAQ 9171 single slot carrier for a low cost 2 channel digital signal analyzer or the multi-slot cDAQ 9174 for a multi-channel data acquisition system for sound and vibration measurement. The NI […]
51.2 kS/s/ch Simultaneous, 3 Vrms, 2-Channel C Series Voltage Output Module—The NI‑9260 is an instrument-grade dynamic signal generator for testing the audio components and capabilities of consumer electronic devices and providing excitation in structural test applications. Unlike sound card-based solutions, the NI‑9260 can be deployed quickly and recalibrated to guarantee long-term measurement repeatability and decreased […]
A low-cost, four-channel data acquisition module that can be mounted in a CompactDAQ chassis.
Used in laboratory acoustic measurements and for measuring quiet products (less than 30 dBA).
For low cost measurement systems for products with higher noise emissions and less critical measurement accuracy.
1/2″ Random Incidence Microphone for use in Reverberant Test Environments
State of the art transducers for laboratory measurement of products with very low noise emissions.
MIRE kits utilize miniature microphone capsules that fits under a hearing protector or in the ear canal.
G.R.A.S. calibrators provide a traceable daily calibration reference for your acoustic measurement system.
G.R.A.S. sound intensity probes are compatible with our Trident software application, including support for 3D and wide band sound intensity measurement.
The KEMAR Mannequin from GRAS Sound and Vibration is an acoustic test fixture that provides the Head Related Transfer Function (HRTF) by simulating the physical characteristics of the human auditory system, head and torso. The KEMAR Mannequin is used to auditory research application and binaural recording/sound quality applications. When fitted with IEC 711 couplers, the […]
G.R.A.S. provides a full line of test fixtures to support acoustic measurement, recording and auditory measurement applications.
The ear simulator is designed to resonate in the same way that the human ear does, which gives accurate results without the need for more expensive and bulky mannequins when performing audiometer calibration or production line testing of headphones or headsets.
The G.R.A.S. Hearing-Protector Test Fixture Type 45CA is for testing the performance of hearing-protection devices such as ear plugs and ear muffs (supra-aural as well as circumaural). It conforms with ISO 4869-3 and can be used with one1 or two2: WS1P or WS2P microphones respectively 1-inch or ½-inch (with adapter, e.g. RA0017) IEC 60318 Ear […]
The Sound Power Hemisphere array fixture from GRAS Sound and Vibration provides and easy and repeatable method for positioning and holding an array of microphones for sound power level determination. GRAS Hemisphere Brochure_21-1
Kundt Tube for Measurement of Normal Incidence Sound Absorption and Sound Transmission Acoustic Impendence Tube These machined aluminum Kundt tubes from SCS-Vibroacoustics in Italy are by far the highest quality tubes for measurement of acoustic impedance, normal incidence sound absorption and sound transmission that we have seen. The modular section design allows it to be […]
Basic sound level measurement, pre-compliance testing, and end of line manufacturing tests on small products and equipment.
Free Field Test Chamber for sound pressure level measurement, sound power level determination, acoustic research and audio measurement applications
Reverberant Test Chambers for sound power level determination and building acoustics measurements
Our turnkey systems use notebook computer by Dell and Hewlett Packard to insure compatibility with all National Instruments drivers and our Trident software application.
VIacoustics provides fully integrated acoustic measurement systems with a personal computer as a host, and insure compatibility with all hardware and software.
This desktop microphone is used in the REAT system to talk to test subjects from the control room. It has a push-to-talk button, which is integrated into the system to control muting of the boundary microphone in the testing room and eliminate feedback.
VIacoustics fully integrated systems include all cables, connectors and fixtures required for plug and play installation at your site. Consult your system quotation for the exact provisions that have been made for fixtures such as microphone stands or mounts, or other test fixtures required to put your system into operation quickly with all needed accessories
The Furman Elite Power Conditioner is used in REAT systems to ensure stable power and reduce electrical noise to all components of the system.
These amplifiers are used in our REAT systems for talk-back and talk-forward microphones, and support muting via external switch. This is useful to avoid feedback when communicating back and forth between testing and control rooms.
Paired with our custom built high-power attenuator, this amplifier supplies the power to generate a sound field with a noise floor below the threshold of human hearing, which is necessary for Real Ear Attenuation at Threshold (REAT) test systems.
Interfaces with optical and mechanical switches, controls L-pad via software, and controls muting of intercom in REAT systems.
Our custom built High-Power Attenuators provide up to 30dB of attenuation. Combined with the high power a Bryston 6BSST² Three-Channel Amplifier we can reduce the noise floor of the sound field to below the threshold of hearing, which is essential for REAT testing.