Microphones
convert sound pressure to an electrical current.
See Also: Phone, Telephone, Geophones, Headphone, Hydrophones, Measurement Microphones, Mic, Electroacoustic, Headset
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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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Test Sockets
MEMS Device
Patented MEMS Sockets from Ardent Concepts use a unique scrubbing action contact set which is ideal for today’s sensitive MEMS devices, including accelerometers, gyroscopes, MEMS microphones and other specialized devices used in mobile electronics applications
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Loudspeaker Testing
TTC
The weakest link in your measurement chain is your chamber, the new TTC chambers solve these problems...*Anechoic chambers have massive footprints:The TTC gives you equal or better results with a compact footprint*Achieving repeatable measurements is difficult in an anechoic chamber:The TTC guarantees the microphone and loudspeaker positions*Anechoic chamber accuracy suffers at low frequencies:The TTC is capable of measuring below 20 Hz*Results are not transferable between most test chambers:The TTC meets international standards IEC 60268-21:2018 & IEC 60268-22:2020*Most chambers are difficult to calibrate and awkward to use:The TTC is calibrated and is ready to interface to your microphone and analyzer
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ICP Microphone System
HT378B02
This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration. Click the following for individual component information.
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Precision Sensors for Aerospace
IC² delivers scientific-grade precision sensors that push the envelope of aerospace measurement accuracy and performance. Offering a suite of sensors and instrumentation for aerodynamic and aeroacoustic measurement applications, including direct-measurement shear stress sensors, aeroacoustic microphones and dynamic pressure sensors and arrays, our sensors are designed to meet rigorous performance specs and survive harsh environments, making them ideal for wind-tunnel and in-flight measurements.
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Sound Level Meters
A sound level meter is used for acoustic measurements. It is commonly a hand-held instrument with a microphone.
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Class 1 Measuring Instrument
Bedrock SM90
The Bedrock SM90 is a versatile class 1/ type 1 acoustic measuring instrument, suitable for a wide variety of applications. With its high-quality 1/2" prepolarized microphone capsule, it is the instrument of choice whenever accurate and reliable acoustic measurements are required.
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Compact Receiver
UCR401
The UCR401 is a high performance compact UHF wireless microphone receiver for mobile applications such as ENG and film production. The compact size, battery and external power and rugged attached antennas are ideal for video camera mounted use. Unique DSP algorithms in the design provide full compatibility with all Lectrosonics 400 Series Digital Hybrid Wireless™ transmitters and variety of analog transmitters from Lectrosonics and some other manufacturers. Power is provided by two AA batteries, typically NiMH rechargeable types, or external DC supplied via a jack on the rear panel.
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Microphone Arrays
One of the most important parts of an Acoustic Camera is the microphone array. It determines the spatial distribution of the acoustic microphones and therefore measurement performance of the whole system. In order to achieve the maximum possible performance in any given application, we offer a wide variety of microphone arrays. No matter if the measurement is beamforming, intensity or holography ... we have the right microphone array. For special applications we can design and build custom made microphone arrays according to the requirements of the application.
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Precision Condenser Microphone
2575
Performance:Nominal Microphone Diameter1"1" Frequency Response: Characteristic (at 0 incidence) Random IncidenceRandom Incidence Open Circuit Sensitivity: 45 mV/Pa Resonant Frequency (90 Phase Shift)8000 Hz8000 Hz[1] Inherent Noise<10 dB(A) re 20 Pa<10 dBTemperature Range (Operating)TBD FTBD C Humidity Coefficient of Sensitivity (0 to 95%, non-condensing)0.001 dB/%RH
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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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Loudspeaker Box
Echo
The Echo Speech Source Type 4720 is a small active loudspeaker box providing calibrated acoustic signals for speech intelligibility measurements using the Dirac room acoustics software. The Echo Speech Source is typically placed at a human speaker position. The received signal at the listener position is then picked up by a microphone and analyzed in Dirac to arrive at an accurate qualification of the speech intelligibility through parameters such as the Speech Transmission Index (STI). The Echo Speech Source operates from 4 AA batteries or an external mains power supply, and can be mounted on a standard tripod.
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ICP Electret Array Microphone
130A23
Nominal Microphone Diameter: 1/4" Frequency Response Characteristic (at 0 incidence)Free-FieldInherent Noise (A Weighted)<30 dB(A) re 20 Pa<30 dB(A) re 20 Pa Dynamic Range (High)150Environmental Temperature Range ( Temperature Effect on Output (-10 to +50 C)<0.7 dB<0.7 dB[2] Influence of Axial Vibration Excitation Voltage 18 to 30 VDC18 to 30 VDC
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Tone Generator
A15TG
The Shure A15TG Tone Generator is a battery-powered 700 Hz signal source used to troubleshoot audio systems by checking microphone lines for correct patching and detecting unusual noise that is present. The output level of the A15TG is approximately 42 dBV.
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Audio Analyzer
MS20
The MiniSonic MS20 is a combined oscillator and measuring set in a stand-alone unit, which is both compact and portable. As well as being a quality tester the MS20 is a precision line-up tool, a stereo PPM, a balanced-unbalanced convertor (both ways), a stereo microphone pre-amp, a headphone amp, and a level convertor.
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Measurement Microphone
UMM-6 USB
Precision condenser microphone for critical measurement and recording applicationsConnects to your PC or Mac via USB portTrue omnidirectional pattern with calibrated flat frequency responseRugged construction with high-quality componentsCompact design; includes sturdy carrying case with foam insertCompatible with most industry-standard measurement software
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Modern Prepolarized Precision Condenser Microphones & Preamplifiers
Modern prepolarized microphones are designed with newer technology than traditional externally polarized microphones. Prepolarized microphones have many advantages over the externally polarized models. They use ICP® power circuitry invented for sensors by PCB®. By applying a polymer coating to the top of the backplate and embedding a charge on it, expensive 200V power supplies can be eliminated and 2-20 mA constant current supplies or signal conditioners can be used as the power source.
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Microphone Preamplifier
426E01
Nominal Microphone Diameter: 1/2 Gain -0.05 dBFrequency Response (0.1 dB) (re 1 kHz)6.3 to 125000 HzFrequency Response (-3 dB) (re1 kHz) Phase Linearity (<1 )32 to 20000 Electrical Noise (A-weight)<2.8 V<2.8 V[1] Output Slew Rate 2 V/S[2]
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Precise Testing & Simulation of A2B® Networks
A2B®-Component-Tester
The Automotive Audio Bus (A²B®) is a bus developed by Analog Devices Inc. for infotainment systems in automobiles. It is increasingly being used in other applications such as AV conferencing systems. Typical A²B® -products are Hi-Fi amplifiers/speakers, head units, eCall systems, microphones, vibration/noise suppression units, actuators, or sensorsCommunication happens via a simple two-wire UTP (Unshielded Twist Pair) cable. All A²B® -components are connected in a master/slave architecture to form a network. The complexity of audio systems in these A²B® -networks is reduced, and with it the cost and weight.
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Acoustic Calibrator
CAL250
The Larson Davis Model CAL250 is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment.
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30KHZ Measurement Microphone
M30
Used on countless full-scale concert tours, as well as in scientific research laboratories, tropical rainforests, and rocket testing facilities, the M30 has proven to be a lab-grade audio instrument that can handle any environment.
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Microphone Preamplifier
426A30
1/2-inch preamplifier with 7-pin LEMO connector (for externally polarized microphones)
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Microphone Measurement Capsule
TG MM1W
Interchangeable measurement microphone capsule for TG 1000 handheld transmittersTo calibrate ELA and PA systems in the theatre, at live concerts or at festivals
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DSP And Power Amplifier
DMPA12
The DMPA12 is a powerful digital audio processor and multi-channel power amplifier combined into a single rack space component designed to work with DM Series processors. The design represents a milestone in DSP technology in its basic architecture and in its processing speed and efficiency. The primary applications are sound reinforcement and teleconferencing in boardrooms, courtrooms, worship centers, distance learning systems, hotels and other applications with multiple microphones and loudspeakers. The design is ideally suited to mix-minus sound reinforcement systems.
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Analoge Sound Level Meter
Model KM-20/ YF-20
Kusam Electrical Industries Limited
One-handed simple, easy to operate. Inbuilt reference signal. Inbuilt battery test. Quickly, accurately sures sound level. Compressed scales minimise range switching. An internal reference signal is available for checking the meter’s operation. Calibration Check. Microphone with Capacitance Microphone.
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RJ-11, RJ-12, RJ-14 Test Connectors
Test connector (6 pole) for contacting RJ-11 interfaces. Applications in data networks, data transmission, power supplies, microphones, etc.
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Artificial Head & Binaural Recording
With binaural recording systems, you can record sounds true to reality, as if you were in the sound field yourself. Our variety of artificial heads accurately reproduce all acoustically relevant components. Ear simulators with different microphones enable aurally accurate recordings, while mouth simulators allow speech playback in the transmitting direction when voice and audio quality are tested in the laboratory.
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PCI-4462, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 4-Input Sound and Vibration Device
779309-01
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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Measurement Microphone System
7052SYS
The 7052SYS Type 1.5TM measurement microphone system offers a cost effective option to acoustic measurements. Perfomance: 4 Hz to >20 kHz response, 20 mV/Pa sensitivity and a "A" weighted noise floor less than 20 dBA.
