Microphones
convert sound pressure to an electrical current.
See Also: Phone, Telephone, Geophones, Headphone, Hydrophones, Measurement Microphones, Mic, Electroacoustic, Headset
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Sound Level Indicators
A sound level meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure. Often referred to as a sound pressure level (SPL) meter, decibel (dB) meter, noise meter or noise dosimeter, a sound level meter uses a microphone to capture sound. The sound is then evaluated within the sound level meter and acoustic measurement values are shown on the display of the sound level meter. The most common unit of acoustic measurement for sound is the decibel (dB); however, some sound level meter devices also determine the equivalent continuous sound level (Leq) and other acoustic parameters. With a portable sound level meter, industrial hygiene and workplace safety professionals can measure sound levels in multiple locations to ensure environmental conditions fall within recommended exposure limits (RELs). Some sound level meter devices can be permanently installed for continuous monitoring of sound levels at a work or job site.An important attribute to consider when searching for a suitable sound level meter is its type or class. The type or class of a sound level meter defines the device's accuracy as per American National Standards Institute (ANSI) or International Electrotechnical Commission (IEC) guidelines. Typically, "type" is the grade according to the ANSI S1.4 standard, whereas "class" is the grade according to the IEC 61672 standard. There are two types or classes assigned to sound level meters: type 1 / class 1 or type 2 / class 2. For assessing noise in basic industrial, commercial, educational, recreational or residential applications, a type 2 / class 2 sound level meter usually will suffice. For precision-grade assessments often made in a laboratory, a type 1 / class 1 sound level meter primarily is used. PCE sound level meter products are lightweight, easy-to-use and manufactured in accordance with the highest industrial standards.
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Professional Audio Test And Analysis Software
AudioExpress
Guangzhou Jumho Electric Co., Ltd.
AudioExpress contains a full range of audio solutions, including acoustic experiment, electro-acoustic analysis, environmental test, advanced signal processing, report generation, and data sharing. Electro-acoustic product test: amplifier, headset, cell phone, speaker, microphone, MP3
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Wireless System For Test And Measurement
TM400 Compact
The TM400 system was designed to provide the ideal link between calibrated test microphones and measurement equipment such as SIM®, SIA SMAART Live®, TEF® or other systems. By using a radio link, long cables can be eliminated thus saving time and providing opportunities for additional measurements to increase accuracy. The microphone can even be moved around in the venue while the audience is present – something that is impossible with a cabled measurement microphone.
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Transducers
Is a unit which comprises a preamplifier fed by a constant current ICP and a condenser microphone
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(94dB & 114dB)Sound Calibrator
AWA6221A
Hangzhou Aihua Instruments Co., Ltd.
*Comply with IEC 60942 class 1*Pocket size, portable unit *Frequency 1000 Hz, give independence of weighting*Sound pressure independent of microphone equivalent volume
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Wireless
Beltpacks
Available as either single or dual channel units, the Trilogy 410 Series beltpacks are designed for 4 wire operation providing a convenient portable connection to any Trilogy intercom system. Each is fitted with a momentary ‘push to talk switch’ plus individual volume control(s) for the incoming audio level. These high performance beltpacks are suited for use with any quality low impedance headset equipped with dynamic microphone depending on the model.
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NI-9250, 2-Channel, 102.4 kS/s/ch Simultaneous, ±5 V, C Series Sound and Vibration Input Module
783827-01
2-Channel, 102.4 kS/s/ch Simultaneous, ±5 V, C Series Sound and Vibration Input Module - The NI‑9250 can measure signals from integrated electronic piezoelectric (IEPE) and non‑IEPE sensors such as accelerometers and microphones. The NI‑9250 is also compatible with smart TEDS sensors. The NI‑9250 delivers a wide dynamic range and incorporates software-selectable AC/DC coupling and IEPE signal conditioning. The input channels simultaneously measure signals. Each channel also has built-in anti-aliasing filters that automatically adjust to your sample rate. When used with NI software, this module provides processing functionality for condition monitoring such as frequency analysis and order tracking.
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Single Channel Microphone Power Supply
SoundConnect Microphone Power Supply
SoundConnect is a cost-effective, single-channel microphone power supply for audio test applications.
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Plug-On Transmitter
HMa
This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15 and 48 volts, or can be turned off for use with dynamic microphones and line level signal sources.
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Microphone System
378B02
This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration.
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Quality Control Program
ATB QC
The ATB Quality Control program has been used for 18 years all over the world. In the production of speaker, headphone, microphone, soundbox, PC, tablet and smartphone the quality is tested with the program and the Audio analyser ATB 804 USB.
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Advanced Tachometer
FT-2500
FT-2500 advanced tachometer measures the rotational speed by using the signal of change in sound, vibration or magnetic flux from rotating machines such as motor or the like.The use of FFT technology enables the FT-2500 to calculate and display the rotational speed of any complex waveform signals from microphone, sound level meter or vibration sensor by extracting the frequency component which is equivalent to the rotational speed.
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Acoustical Random "Noise" Generator
ARNG-2000
Eliminate and Defeat otherwise undetectable distance surveillance devices such as Microwave, Laser and Boom Microphones
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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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Microphones/Preamplifiers
To apply gain to (amplify) the signal without changing how the signal sounds.
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USB MPEG Frame Grabber
2250
MPEG1/2/4 and JPEG capture to USB from an analog video source at D1 resolution 30 fps NTSC, 25 fps PAL Synchronous audio capture from line (stereo) or microphone (mono) inputs Motion Detection Text overlay (OSD) Powered through USB SDK works with multiple units
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23KHZ Measurement Microphone
M23
The M23 is a precision engineered 23kHz omnidirectional measurement microphone ideally suited for acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required.
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SparkFun Analog MEMS Microphone Breakout
ICS-40180
The SparkFun Analog MEMS Microphone Breakout makes it easy to work with the InvenSense ICS-40180 analog microphone. This board features an OpAmp to bring the output of the microphone to a usable level, allowing you to plug directly into an ADC on a microcontroller or something like the SparkFun Spectrum Shield.
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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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MEMS Microphone Test
The market is driving the need for improved voice recognition for security, automobile infotainment control, VoIP, accurate language translation, voice-activated consumer devices and high precision hearing aids. The latest next-generation microphones require highly accurate precision testing with SNR tests up to 78 dB with high parallelism, high UPH, in a high volume production environment.
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Remote Control Voice Recognition Tester
BK3013
Ready to help you take on the leading edge of consumer technology, we have designed a machine that tests microphones which both use RF and are used for voice recognition. The BK3013 runs a uniform SPL sweep to calculate FRF and also runs an SPL sweep that allows you to test the SPL range of your mic. Our "Test Shop" program will show you the results in graphs and allows you to have the computer check specific points in the test.
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50KHZ MEASUREMENT MICROPHONE
M50
The M50 is a precision engineered 50kHz omnidirectional measurement microphone ideally suited for acoustical measurements including high-end loudspeaker design and quality control, scientific research, measurements of ultrasonic or subsonic transducers, or any application where an extremely accurate free-field measurement microphone is required.
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Microphone Preamps
Applied Research and Technolgy
Unlock your mic's full potential with advanced features like variable impedance, mid-side processing, and real tube warmth.
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Audio Analyser
ATB PC Pro
The ATB PC Pro Measuring system is a professional Audio Analyser. The Windows program is combined with the computer’s soundcard, the measurement microphone, the Test-Box and the DVD (CD) for the signals forms an exact and extensive measurement system. The applications for the ATB PC Pro are the speaker development, room acoustic optimise, the installation of car sound systems, the setting of Surround reproduction systems and the noise analyser.
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RJ-50 Test Connector
Test solution for RJ-50 connectors (10 pole). Applications in data networks, data transmission, power supplies, microphones, etc.
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XLR-Function Tester
CTG-1NOISE
Monacor International GmbH & Co.
With integrated pink noise generator. For quick and easy functional testing of balanced microphone cables or microphone inputs on stage.
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Sound Level Meter
SM-2
Monacor International GmbH & Co.
Sound level meter (class 2), one-hand operation. Electret microphone capsule. Max hold and data hold function. A and C rating, slow and fast. Additional output for DC/˜V via 3.5 mm jack. Supplied with a practical nylon carrying bag.
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6 Sided Bed of Nails Testers
BoxProber Family
6 sided Bed of Nails circuit board test fixture. Probes top bottom and all 4 sides. Central camming mechanism pull plates inward. Mechanically or electrically actuated options. Designed primarily for testing products in plastics. Side access electrically probes outside panel connectors. The unit will also optically read LEDs and key segments off LCD displays. Solenoids will press buttons and servos will turn selector switches. DC motors are used to adjust multiple turn potentiometers. Microphone will detect audio output tones. Top and bottom of circuit boards can also be probed if removable access panels are available. This unit will also probe all 6 sides of a circuit board. This is typically utilized in applications where connector testing is required.
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C-Mic Testing System
BK3010
The BaKo BK3010 is our main C-Mic tester. It's small enough to carry under your arm and with a test time of under 0.5 seconds, it tests as fast as you can connect a microphone. Setting up the specifications is so easy and intuitive, we based the BK3012 D-Mic Tester on it. It is also the model for our BK9010B Fully Automatic C-mic Tester.
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PXI-4461, 204.8 kS/s, 2-Input/2-Output PXI Sound and Vibration Module
779687-01
204.8 kS/s, 2-Input/2-Output PXI Sound and Vibration Module—The PXI‑4461 is designed for sound and vibration applications. It provides two-channel dynamic signal generation and two-channel acquisition, and you can use one of six gain settings to configure your input range. The PXI‑4461 also includes software-configurable AC/DC coupling and IEPE conditioning. The PXI‑4461 includes the hardware and software needed to make precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications include audio test; automotive noise, vibration, and harshness (NVH); and machine condition monitoring.
