SoundCheck is a complete system for testing and measuring Smartphones and Tablets from the R&D lab to the production line. It measures all audio parameters for the speakers and microphones in the finished devices, as well as measuring sound quality to TIA standards.
SoundCheck can measure all the audio in a smartphone or tablet, both in terms of measuring the speakers and microphones before they are incorporated into the product, AND for testing the complete finished product. Here we will focus on measuring the complete product.
Measuring the audio on a finished smartphone or tablet can be challenging as their inputs and outputs of the speakers and microphones are buried in electronics and not easily accessible. However, SoundCheck can make transducer measurements on such devices provided that you can get the audio test signal file onto your device, for example by embedding it into the device software for recall as part of the test, or simply recording it via the device’s microphone. This avoids the need for expensive cell station simulators, hugely reducing the cost of your test system. In addition, with SoundCheck’s sequence editor making production line testing easy and repeatable, and a wide variety of test signals within SoundCheck, it is possible to carry out extremely fast production line testing of cellphones and tablets. As well as standard loudspeaker and microphone tests such as frequency response, distortion, sensitivity, polarity, rub and buzz, etc., SoundCheck also measures to telephone test standards such as TIA-810 and TIA-920, enabling all the audio on your cellphone to be tested.
在完成的智能手机或平板电脑上测量音频可能极具有挑战性，因为它们的扬声器和麦克风的输入和输出都埋在电子设备中并且不容易存取。但是，SoundCheck 可以在此类设备上进行换能器测量，前提是您可以将音频测试信号文件保存到您的设备上，例如，将其嵌入设备软件以作为测试的一部分进行调用，或简单地通过设备的麦克风进行记录。这避免了对昂贵的基站模拟器的需求，大大降低了测试系统的成本。此外，借助 SoundCheck 的程序编辑器使生产线测试变得简单且可重复，以及 SoundCheck 内的各种测试信号，可以对手机和平板电脑进行极快的生产线测试。除了标准的扬声器和麦克风测试，如频率响应、失真、灵敏度、极性、摩擦和嗡嗡声等，SoundCheck 还测量 TIA-810 和 TIA-920 等电话测试标准，使您的手机上的所有音频进行测试。
The main difference between testing smartphone/tablet audio and normal loudspeakers and microphones is that conventionally, you have an uninterrupted signal path from output to input, but in smartphone/tablet testing the inputs and outputs are not directly connected – this is known as open loop testing. To further complicate matters, the input and output may be in different domains (e.g. analog output and digital input), the input and output are asynchronous (different sample rates), and there is often a variable delay between input and output
测试智能手机/平板电脑音频与普通扬声器和麦克风之间的主要区别在于，传统上，您有一个从输出到输入的不间断信号路径，但在智能手机/平板电脑测试中，输入和输出不是直接连接的——这被称为开环 测试。 更复杂的是，输入和输出可能在不同的域（例如模拟输出和数字输入），输入和输出是异步的（不同的采样率），并且输入和输出之间通常存在可变延迟
While this sounds daunting, it is not a problem in SoundCheck. Signal path calibration overcomes the input and output being in different domains. Re-sampling and frequency shift post-processing options compensate for different sample rates and phases, and finally, the auto-delay analysis option compensates for a variable delay between input and output.
In short, any test that SoundCheck can carry out on a stand-alone loudspeaker or microphone can be made on a closed loop, playback only, or record only device such as a smartphone, tablet, network audio device, digital voice recorder and more.
虽然这听起来令人生畏，但在 SoundCheck 中这不是问题。 信号路径校准克服了输入和输出在不同域中的问题。 重新采样和频移后处理选项可补偿不同的采样率和相位，最后，自动延迟分析选项可补偿输入和输出之间的可变延迟。
S&V Samford sound and vibration
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
Listen 新发布 SoundCheck 20 SoundCheck 20 introduces our state-of-the-art perceptual distortion algorithm for end-of-line testing - Enhanced Perceptual Rub & Buzz. --- More Details: Sound Check System SoundCheck 20 New Features Soundcheck 20 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
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 VIBER M8™ SMART PRODUCTS FOR SMART PEOPLE VIBER M8™ It is the Advanced simultaneous measuring System VIBER M8™ More Details: VMI VIBER M8™
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...