1/2-inch Microphone/ Preamplifier
1/2 - inch back electrets-type microphone that is free sound field type, ,realizes high sensitivity, low noise and does not require bias power has been newly added. Also, there are MI-1271 which has improved the environmental stability against temperature and humidity, MI-1235 which emphasizes on a wide frequency range and MI-1433 which realizes a similar environmental resistance at a low price. MI series microphone is used in combination with the preamplifier and the microphone. Since microphone and preamplifier are not built-in type, installation costs can be reduced in the event of a fault.
MI-1281/ MI-1271 / MI-1235 / MI-1433
MI-1281 is precision microphone that achieves -20 dB re.1V/Pa of sensitivity, 8 dB of self-noise level (A-weighting, when using MI-3170) although it is 1/2-inch back electrets type. It has a low noise floor that enables measurement of very low noise. In other words, it is efficient for measuring sound power level of noise-reduction home appliances and in semi-anechoic room, and for probing tiny but unpleasant sound source of electric vehicles.
MI-1271 is 1/2-inch back electrets type precision microphone which conforms to IEC 61094-4 Type WS2F(Measurement microphones- Part 4: Specifications for working standard microphones). By adapting laser welding fixation of titanium vibrating membrane, it realizes long-term stability. In addition, wide temperature/humidity range (-30 ℃ to +80℃/ 0 to
90% RH) and wide frequency range (1 Hz to 20 kHz) enable to meet wide variety of applications, such as measurement of environmental noise in high-temperature and humidity environment, measurement of sound with very low frequency (up to 20 Hz), and sound measurement during cold start tests of automobiles.
MI-1235 is best to be used as measurement and analysis for environmental noise, architectural acoustics, and radiated sound from electrical/mechanical instruments. And it has a wide frequency range of 10 Hz to 20 kHz.
It is precision microphone used with the MI-3111 microphone preamplifier.
MI-1433 is excellent for environmental noise measurement with frequency range of 20 Hz to 8 kHz. It is general microphone with low cost used with the MI-3111 microphone preamplifier.
Listen can help you to conduct the Microphone Measurement with its products, which included the SoundCheck system, the All-in-one Audio Interface - AmpConnect ISC, The SCM Microphone, Mouth Simulator and also the DCC-1448 MEMS interface. Listen可以帮助您使用其产品进行麦克风测量，包括SoundCheck系统，一体化音频接口 - AmpConnect...
Head and Torso Simulator - G.R.A.S 45bb KEMAR Head & Torso Simulator(人头及躯干模拟器) : s&V人头及躯干模拟器 is a configurable acoustic research tool that simulates the changes that occur to sound waves as they pass a human head and torso. Its equivalent with mouth simulator is G.R.A.S. 45BC KEMAR Head & Torso, non-configured S&V Samford Instruments...
The Hearing Aid Measurements need to conduct with the following software (助听器测量需要使用以下软件和硬件进行) and hardware, SoundCheck (Optional Software Modules: 2008: Attack and Release, 2005 Real-time Analyzer (1/1, 1/3, 1/6, 1/12, & 1/24 octave,2013: WAV File Equalization) , the AmpConnect ISC and also the DC Connect...
To conduct the Audio Electronics Measurements, the SoundCheck system, the AudioConnect 4×4 and also the PIO-9216 Digital Audio Data Interface are needed. SoundCheck Measurements: Frequency response, Phase, Crosstalk, THD+N, Sigal-to-noise ratio. Audio Electronics Measurements More Details: Audio Electronics Measurement
The Wireless Devices Measurements need to conduct with the SoundCheck system, the AmpConnect ISC, the SCM Microphone and the -BTC-4148 Bluetooth Interface 无线设备测量需要使用SoundCheck系统、AmpConnect ISC、SCM麦克风和-BTC-4148蓝牙接口进行。 ---------- More Details: Wireless Devices Measurement
Listen's Telephone Measurements would be conduct with the SoundCheck Plus or Advanced ,Head and Torso Simulator, Handset positioner,Legato telephone test interface and also the Ear Simulator & Mouth Simulator Listen的电话测量将使用SoundCheck Plus或高级、人头和躯干模拟器、手机定位器、Legato电话测试接口以及耳模拟器和嘴模拟器进行。 ---- More Details : Telephone Measurements
SoundCheck 19 New Released : Enhancements for multi-channel measurements. Listen 新发布 SoundCheck 19：增强多通道测量的功能。 --- More Details: Sound Check System SoundCheck 19 New Features Soundcheck 19 new features video
NoiseCheck is essentially SoundCheck without a stimulus editor, as it is designed for manufacturing the noise made by your product. It is a powerful piece of software, ideal for both R&D and production line acoustic measurements of fans, blowers, motors, gears, bearings, pumps and other electromechanical products. --- More Details : Noise Check System
The Bluetooth Measurement Interface , BTC-4149 and BQC 4149. 用于研发和生产线上的蓝牙测量接口,BTC-4149 和 BQC 4149 More Details: Bluetooth Measurement Interface
AmpConnect ISC is an all-in-one audio interface that simplifies your test setup and operation 一体化音频接口-AmpConnect ISC AmpConnect ISC是一体化音频接口，可简化您的测试设置和操作 AmpConnect ISC More Details: AmpConnect ISC
AudioConnect is a 2-in, 2-out audio interface specifically designed for audio test and measurement. USB操控的音频测试接口 - AudioConnect是一款2进，2出的音频测试接口，专门设计用于音频测试 S&V More Details : AudioConnect
The world’s only dedicated audio test amplifier 世界上唯一的专用音频测试放大器 More Details :SCAmp Audio Test Amplifier
USB Controlled High Precision Audio Test Interface USB操控的高精度音频测试接口 ---Listen High Precision Audio Test Interface- Audioconnect 4x4 AudioConnect 4×4 is a high accuracy 4-in, 4-out audio interface AudioConnect是一款4进，4出的高精度音频测试接口，专门设计用于音频测试。 S&V Samford More Details: AudioConnect 4x4
Impedance Box Known impedance for use in loudspeaker measurements --- An impedance box is necessary for measuring the impedance of a loudspeaker. Listen Inc.’s impedance box contains a 0.25Ω resistance. More Details: Impendance Box
The 45CC Headphone Test Fixture is for dual-channel testing of headphones and headsets, and it is built on our vast experience in the field. With a focus on multiple configuration options and accurate and repeatable test results, the test fixture can easily be adapted to many different headphone/headset designs and sizes. 45CC耳机测试夹具用于耳机的双通道测试。 45CC...
HALT- the G.R.A.S. quality mark for your Data Safety HALT refers to the Highly Accelerated Lifetime Tests, which is also the quality mark of G.R.A.S. The HALT test of G.R.A.S. is created to confirm their microphones can perform under a real life situations. S&V Samford Instrument Ltd More Details: HALT
SoundConnect 2 mic power supply 麦克风电源 2 Channel Microphone Power Supply and Conditioning Amplifier 双通道麦克风电源和调节功放器 --- SoundConnect 2 is a rugged 2-channel USB controlled microphone supply and conditioning amplifier SoundConnect 2是一款坚固的双通道USB控制的麦克风电源和调节功放器。 Listen Inc & S&V Samford More Detail: SoundConnect 2 mic power Supply
VIBER M2™ Vibration monitoring VIBER M2™ VMI VIBER M2™ is a machine guard that with 1 or 2 Channel. The VIBER M2 is designed for standalone guard, but it can send information into a programmable controller or to the monitoring system. Besides, the machine would be stopped or an alarm will be given when the vibration indicates...
VMI -VM41 -- You may need to monitor multiple points! -- The VM41 Rack system can measure up to 10 measuring points at the simultaneously. Alarms, relays and mA outputs are standard. -- More Detail : VMI VM41
The GRAS 47AC is a 1/2" CCP precision condenser microphone set for infra-sound measurements in open acoustic fields. G.RAS 47AC是1/2寸 CCP精度电容式传声器，例如，开放的声场红外声音测量设置。
The GRAS 43AG Ear and Cheek Simulator is a unique, multi-faceted and multi-purpose tool that helps you accomplish the job in an effective and efficient manner. We call it the table-top KEMAR as it offers you much of the KEMAR capability in a convenient and portable packaging. GRAS GRAS 43AG 耳廓及面颊模拟器是一款独特、多面、多用途的工具，可帮助您以有效和高效的方式完成工作。...
KB5000 is a right pinna with anthropometric concha and ear canal for KEMAR. It is made of soft silicone, 35 Shore OO hardness. GRAS KB5000是用于KEMAR的一款带有人体测量的仿真外耳和仿真耳道的右边仿真耳廓。 它由柔软的硅树脂制成，属于35 Shore OO硬度类別。
The GRAS 42AG Multifunction Sound Calibrator is a portable, battery operated sound source for calibration and check of microphones and sound level meters. It is designed for field use and comes with a protective casing. It conforms to the requirements in IEC 60942 for a class 1 sound calibrator. GRAS 42AG多功能声音校准器是一种便携式电池供电声源，用于校准和检查麦克风和声级计。...
Reliable measurements of headphones and earphones up to 20 kHz 高分辨率耳模拟器可靠测量高达20 kHz的耳机和耳机 G.R.A.S. -Improved repeatability above 10 kHz 提高10 kHz以上的可重复性 -- -Measurements below and above 10 kHz both in the same measurement setup 在相同的测量设置中测量低于和高于10 kHz的值 -- -The dampened resonance means better distortion...