SoundCheck Software is the heart of a SoundCheck test system. It generates all the test signals, performs analysis and displays results according to the user’s configuration.
Sound Check System
While it is an extremely powerful and flexible product, its capabilities can be described in 3 parts, First, the test Sequences (how tests are configured by the operator), Second, Virtual Instruments (software implementation of standard audio test equipment) and the thrid one,Data Analysis (the various analyses that SoundCheck can perform on your data)
S&V Samford SoundCheck Software
SoundCheck 20 introduces our state-of-the-art perceptual distortion algorithm for end-of-line testing - Enhanced Perceptual Rub & Buzz. It also includes a host of new features for multichannel and communications testing, increasing its capabilities for audio measurement of smart speakers, infotainment systems, headphones and hearables, and other voice-activated and multichannel devices
Enhanced Perceptual Rub & Buzz (ePRB)
Listen’s new Perceptual Rub & Buzz algorithm is a reliable and repeatable method of detecting audible Rub & Buzz faults on the production line. This offers manufacturers the option to increase yield by rejecting only those devices with audible distortion defects. Based on the sound psychoacoustic principles used in Listen’s industry-standard 2011 Perceptual Rub & Buzz algorithm, the new refinements improve listener correlation and demonstrate significantly better noise rejection to offer unrivaled repeatability. This makes limit setting easier and increases reliability, especially in production environments. The algorithm measures perceptual Rub & Buzz at the same time as all other end-of-line measurements with a single stepped sine wave stimulus, enabling this valuable analysis to be added to production line tests with no extension in test time.
New Multichannel RTA functionality
The multichannel Real Time Analyzer now includes expanded functionality for real time observation of audio signals. It displays multiple channels simultaneously, and offers real time calculation and display of channel addition, subtraction, maximum, minimum and power average. Applications for this new feature include real-time observation of active noise cancellation, automotive industry standard 6-microphone array infotainment measurements, validating headphone seal on a test head prior to measurement by comparing left and right earphone response, and more. Paired with the AmpConnect 621 multichannel audio interface, it offers unmatched functionality for multichannel measurements on a wide array of devices, especially those featuring dynamic signal processing. RTA curves are now seamlessly integrated with SoundCheck’s standard graphs. Live curves from the RTA are displayed in the memory list and can be dragged and dropped into any graph for easy comparison to limits and reference curves. This is useful for quick comparisons to reference standards or golden units, tuning automotive infotainment systems, and more.
Updated Signal Generator
A complete overhaul of the signal generator brings additional functionality and simplified operation, particularly when using wav files. In addition to standard audio stimuli (sine, white noise, pink noise, multitone) with user-selected sampling rates and resolution, it can play any wav file, any memory list file, and any complex waveform created by the stimulus editor. The level can be referenced to Peak, dB or RMS. The signal can be equalized in real time, and custom EQ curves applied, which is useful when using a non-flat source such as a mouth simulator. A specific portion of a waveform can be selected to play, either by selecting a start and stop time in seconds, or by examining the waveform. Outputs from 2 or more signal generators can be mixed on the same channel. Waveforms from multiple signal generators can be synchronized, or a delay added for non-coherent playback, for example when generating background noise. Signals may be played for a fixed duration, a fixed number of times, or in a continuous loop. Slider control, in addition to numerical entry, simplifies use.
The optional POLQA (Perceptual Objective Listening Quality Analysis) module brings POLQA analysis right into SoundCheck, for perceptual measurements of speech degradation in communications applications ranging from telephones to smart devices. It may be used to assess the impact of noise reduction algorithms, evaluate Bluetooth degradation due to packet loss, or to analyze distortions introduced into the audio path. Naturally, it can be used within sequences to accelerate and simplify test procedures.
Batch Processing of external files
While SoundCheck has offered batch processing of collected data since 2012, version 20 extends this with the ability to automatically load and process external data. This is useful in any application where it is desirable to automate the testing of a large number of external data files via a sequence, for example wav files of speech recordings. This has many uses in communications testing, for example in testing the Mean Opinion Score (MOS) of degraded speech files.
New Features for Communications Testing
New stimulus steps and post-processing capabilities support communications testing needs, for example, measurement of Doubletalk and other speech transmission parameters. These include a silence stimulus step, and RMS level versus time and histogram post-processing steps. A pre-written test sequence for categorizing Doubletalk performance to two international standards, ITU-T P.502 and ETSI TS 126 132 (part #3114) is also available. • The silence step inserts a user-defined zero-amplitude signal before or between active signal levels of a compound stimulus step. This is used to synchronize two or more signals in a stimulus step based on measured delays in the device under test. • The Level vs Time Post Processing step computes the RMS level over time of the selected waveform or group of waveforms within a sequence. • The Histogram Post Processing step calculates the histogram of a waveform and outputs two curves, the histogram, and the complementary cumulative distribution. This is used for any non-stationary signal analysis such as echo detection in telecommunications or background noise evaluation.
Stimulus editor upgrade
The stimulus editor can now create a stimulus from any waveform in the memory list and equalize and adjust its level, for example using active speech level. This enables such adjustments to be made to externally acquired test signals, such as those imported into SoundCheck via TCP/IP or recall steps. This is particularly useful for smart device certification testing.
Saving Multichannel Wav files
It is now possible to export multiple SoundCheck recorded waveforms to a single multichannel wav file. This is useful for maintaining channel identification when playing back a multichannel wav file on a device that can only play wav files.
A new hardware reset option in the set-up wizard allows audio interfaces to be changed without the need to reconfigure channels, and offers a fast way of restoring hardware to a known configuration
S&V Samford SoundCheck Software
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
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...