Face-to-face トレーニング

Already when recording noises and vibrations, the possibilities and limits for subsequent processing and analysis are defined.

The one-day training course will highlight the areas relevant to data collection, from the sound field to the selection and conditioning of suitable sensors and front-ends to the efficient use of the recording software and the documentation of the recordings.

Practical exercises accompany you and illustrate the theoretical fundamentals of measurement technology and data acquisition.

Program:

• The Sound field, special features of sound signals
• Data acquisition
  • Standard sensors: microphones, accelerometers
  • Special sensors: binaural sensors, digital sensors (CAN, OBD, FlexRay)
  • Creating a sensor library
• Time signals and their properties
  • Characteristics for data acquisition and A/D conversion
  • Limits of signal recording
• ArtemiS SUITE Recorder practice
  • Setup of a channel list
  • Calibration
  • Trigger
  • Online Monitoring
  • “The “Flow Control””
• Documentation of measurements

In this two-day training you will receive the ideal introduction to the versatile and flexible analysis software ArtemiS SUITE. You will learn the philosophy, the program structure as well as the most important basics and functions. The practice-oriented presentation will prepare you for an optimal use of this powerful tool.

Using practical examples, you will get a clear impression of basic features.

Program:

• Creation of a project
• Playback and online filtering
• Meaning of single values
• Introduction to digital signal processing:
  • Level analysis
  • Signal Processing for audio data
  • The Fourier block: time-frequency transformation
  • Fast Fourier Transformation (FFT)
  • Windowing, overlap
  • Multidimensional data analysis, analysis of frequency, time and level in one diagram (FFT vs. Time)
  • Consideration of the RPM-speed information (FFT vs. RPM)
• Possibilities of graphical presentation of results
• Statistical evaluation

This two-day training offers in-depth insight into special analysis methods in ArtemiS suite. Learn how to perform analyzes versus a variety of reference quantities such as RPM-values or vehicle speed.

Besides many other tools, different types of order analyzes are presented. Here the focus is on the question, which procedures fit to specific problems. In this context, we also show you how to use order filters to manipulate the level of specific orders during playback to achieve your target noise.

In addition, the training explains the benefits of special analysis methods which are, compared to a standard FFT, better suited for specific problems, e.g. for the analysis of low-frequency components of the time signal.

Another topic of the training is the structured documentation of measurement data and the creation of individual reports from the measurement results.

Program:

• RPM-based analysis
  • Order analysis
  • Reference quantity vs. Time
  • RPM Generator: Create a RPM-gradient from an order visible in a FFT analysis
  • Preparation of pulse signals for torsional vibration analysis
  • Order filters
• Advanced analysis
  • Variable frequency resolution VFR
  • High resolution spectral analysis HSA
  • Wavelet analysis
• Documentation and reporting with the ArtemiS suite
  • Advantages of structured documentation
  • Creation of documentation templates
  • Use of a database for quick finding of measurement results based on the documentation
• Export of results to PowerPoint® reports
• Using documentation for reporting

During the training, you will learn how to handle often-recurring tasks with the help of the automation function of ArtemiS suite. You will learn how to combine a sequence of work steps in an automation project that linearly processes files or large amounts of data at the push of a button.

Program:

• Concept of an automation project (recording, analysis, filtering, statistics operation, export, report etc.)
• Automated cutting of marks based on RPM-values or at a defined time, also relative to the beginning or the end of a mark
• Simplified processing of test series
• Creation of an automation project from a pool project
• Automated selection of files by filename or documentation
• Automatic selection of specific channels for analysis, e.g. by name
• Use of automation in the ArtemiS SUITE Recorder

This one-day training will familiarize you with psychoacoustic fundamentals. You will learn how to use different psychoacoustic techniques and how to use them to work effectively in the areas of sound design, acoustic optimization, troubleshooting, and more.

Since subjective requirements of the customer are getting more important in the daily work of an acoustician, the focus of this training is on teaching practical solutions for both your individual applications and those of your customers

Program:

• Auditory Perception - Analytical Description
• Isophones
• Frequency groups
• Psychoacoustic parameters
• practical examples
• Special analysis methods
  • Sharpness
  • Roughness
  • Specific prominence
  • Speech intelligibility index
  • Tonality
• Limits of psychoacoustics

This one-day training covers the different possibilities of psychoacoustics.

Using sample sounds from practical examples, you will experience the benefit of psychoacoustic procedures. You will learn how to use filters to achieve a target sound and how to compare measurements based on psychoacoustic routines.

Program:

• The following analyzes are explained in more detail using examples:
  • Relative Approach
  • Modulation analysis
  • Roughness
  • Sharpness
  • Prominence Ratio
  • Speech intelligibility index
• Effect of filters on the analysis results

So-called Sound Quality Metrics are applied in automated evaluation and classification of sound patterns. Machine Learning approaches such as linear regression modelling are followed in order to establish these metrics as combinations of different (psycho-)acoustic descriptors.

This two-day seminar conveys safe access to the topic of Sound Quality Metric Development and insights into topics of Machine Learning in Acoustics.

Jury Testing has been established as a key methodology for evaluation of perceived sound quality in industry and research. The approach of jury testing provides essential information in product benchmarking and identification of potential for improvement.

This one-day seminar conveys safe access to the topic of jury test design, conduction of jury tests and jury test result evaluation.

This seminar has three parts and three purposes:

A refresher, or revealer, of tips and techniques related to inherent capabilities in the software and its logical control structure enabling enhanced use and convenience.

Comparison/inter-translation between the ArtemiS SUITE Modules and their contents used in software versions through 14 (ASM, codes 5xxx), and the more individualized ones in ArtemiS SUITE 15 and beyond (APR, ASP, ASX, codes 50xxx). Note that ArtemiS Classic can no longer be started as of installation of ArtemiS SUITE 15, as the module structures do not match.

“Office hours” hands-on work/help session, both with the group and individually if requested. Students are encouraged to bring files and projects, and to advise the instructor in advance if material may be shared in the group session or be addressed privately in individual help.

Program:

• Tips and techniques: The Data Cursor: limitations of Windows cursors in multiple simultaneous windows, and how to surmount them by unusual uses of particular ArtemiS SUITE capabilities.
• Synchronization of scales, windows and cursor modes including Playback Spot.
• Use and procedures for evaluating multiple analyses at once using preset ordinate scales; 3D and 2D applications.
• Using hearing and vision together in the interactive environment: balancing time and frequency resolutions, measuring psychoacoustic “complications” as well as conventional metrics to understand integrated perceptions: using evidence and intuition.
• Graphic measurement of resonances via interactive playback filters
• Time-controllability of playback audition: real-time, faster, slower, time-frozen – and why and when.
• Spreadsheet cross-references and clarification of ArtemiS SUITE (through 14) Modules (ASM, code 5xxx) and ArtemiS SUITE 15+ codes 50xxxx.
• Work-session instructor-student interaction and assistance:
• Group and individual “office hours”: students to bring files and projects
• Course PowerPoint(s), files, projects, printed binder, memory stick

This course will go over basic noise and vibration analysis concepts that are used regularly by test and development engineers. With the assumption that valid data has already been collected, the first-level sound and vibration analysis terms and some properties will be reviewed. The differences between some settings, and the limitations of the analyses, will also be shown.

Program:

• Introduction to digital signal processing:
  • Level analysis
  • Signal Processing for audio data
  • The Fourier block: time-frequency transformation
  • Fast Fourier Transformation (FFT)
  • Time and frequency resolutions of the FFT: what; why, and how to select
  • Windowing, overlap
  • Multidimensional data analysis, analysis of frequency, time and level in one diagram (FFT vs. Time)
  • Consideration of the RPM-speed information (FFT vs. RPM)
• Meaning of single values
  • Level – SPL, overall, dB(A), etc.
  • Loudness – N5, N10, etc.
  • Root Sum Square (RSS), or Quadratic Sum

In this one-day class, preferably taken after the Basics of NVH Analysis class, you will be fully introduced to the structure, control and use of the versatile and flexible analysis software ArtemiS SUITE. With hands-on practical examples, you will understand its philosophy, program structure and most important basics and functions.

This seminar is not limited to “how the software works” although it provides that instruction. It is mainly intended to solidify the thought processes, work goals and flow for using ArtemiS SUITE, while informing the user about what is possible, and how.

Program:

• Organization and logic: the Project, and Documents it can create: the Document Window
• The Player and other Tool windows: auxiliary windows
• Working interactively: playing/listening/filtering: the core concept
• The Mark Analyzer (MA) and Data Viewer (DV)(documents: MA for interactive listening)
• The Mark Editor: cutting to time or RPM
• Exports, imports
• Data acquisition review
• Manipulations, cursors, copying/pasting, dragging/dropping
• Reports (basics)

This seminar develops the use of ArtemiS SUITE as an analytical extension of human perception for sound quality and vibration analysis in both an acoustic and a multichannel acoustic-plus-vibration context.

It includes how to select and apply conventional, psychoacoustic, and advanced psychoacoustic metrics, vs. time, RPM or other reference quantities; and how to recognize needs for multiple simultaneous analyses to relate and quantify perceptually-important phenomena, which in technical sound situations is most of the time.

Course documentation includes printed material, PowerPoint presentations, and a library of ArtemiS SUITE example Projects with sample data files. ArtemiS SUITE systems are available for hands-on exercises throughout the course.

Participants are encouraged to bring their own data files.

Program:

• Introduction: sound attributes, critical listening, hearing capabilities, introduce psychoacoustics
• Relationships for sound and vibration quality engineering (partial list)
  • Psychoacoustics: benefits and limitations
  • Relationship of conventional and psychoacoustic measures
  • Multidimensional, perceptive, and cognitive aspects
  • Signal processing for sound and vibration
  • FIR filters and convolution: transfer functions, impulse responses, and “unorthodox” applications such as for auditioning coherent and incoherent contributions
  • Uses of the Calculation Project and Automation Project
• Application-Specific Analyses
  • Listening-guided choice of metric/settings: level, frequency, time
  • Balance analytic resolutions according to perceptual resolutions
  • Measurement vs. time, RPM, speed, etc.
  • Modulation analysis and psychoacoustically-weighted modulation analysis
  • Multiple analyses: choices and uses
  • Advanced psychoacoustic metrics
• Hearing Model of Sottek
  • Hearing Model spectrum vs. time
  • Tonality (Hearing Model)
  • Tonality (Hearing Model) with selectable tonal annoyance weighting
  • Roughness (Hearing Model)
  • Impulsiveness (Hearing Model)
  • Relative Approach (RA) (subtracts moving average from each instantaneous measurement)
  • High-resolution Spectral Analysis (HSA)
• Productivity tools and techniques
  • Metadata – user Documentation in ArtemiS SUITE
  • Database management: creation, connection, population
  • In-depth report generation
• Tips

At the very beginning, when recording noises and vibrations, the possibilities and limits for subsequent processing and analysis are defined.

This half-day training course will highlight the areas relevant to data collection, from the sound field to the selection and conditioning of suitable sensors and front-ends, to the efficient use of the recording software and the documentation of the recordings.

Practical exercises familiarize you and illustrate the theoretical fundamentals of measurement technology and data acquisition.

Program:

• Features of sound and vibration signals
• Data acquisition
  • Standard sensors: microphones, accelerometers
  • Special sensors: binaural sensors, digital sensors (CAN, OBD, FlexRay)
  • Creating a sensor library
• Time signals and their properties
  • Characteristics for data acquisition and A / D conversion
  • Limits of signal recording
• ArtemiS SUITE Recorder practice
  • Setup of a channel list
  • Calibration
  • Triggering
  • Online Monitoring
  • The flow Control
• Documentation of measurements

This seminar develops the use of ArtemiS SUITE as a data acquisition and interactive signal processing/analysis system for applications in electric powertrain designs, analyses and their perceptual implications.

Course documentation includes printed material, PowerPoint presentations, and a library of ArtemiS SUITE example projects with sample data files. ArtemiS SUITE systems are available for hands-on exercises throughout the course.

Participants are encouraged to bring their own data files.

Program:

• Reference quantities and channels
• Pulse- and ramp-tachometer acquisitions/creations, uses and inter-conversions
• “Live” dials for RPM and other reference quantities
• Analyses vs. “RPM” (vs. any quantity)
• Background: noise and vibration causes and issues in electric machinery and control
• Psychoacoustics and order-related psychoacoustics
• Advanced analyses (5016)
• Filters, overview
• All order-based analyses
• Order analysis
  • Algorithm choices and reasons
  • Value of extremely small RPM steps in information resolution and avoidance of event-rate/analysis-step interferences
• How to obtain e-motor RPM from acquired road-wheel RPM
• Tools for electric and hybrid powertrains
• Offset orders
• Modulation analysis (conventional and psychoacoustic)
• Order modulation analysis
• Working with e-vehicle data recordings (hands-on)
  • Value of multiple simultaneous analyses, including of electrical properties
• Sound Engineering Project
• Torsional analysis
• Gated time cuts
• Gated spectral analysis
• Conclusion

This seminar develops the use of ArtemiS SUITE as a data acquisition and interactive signal processing/analysis system for applications in IC powertrain designs, analyses and their perceptual implications.

Course documentation includes printed material, PowerPoint presentations, and a library of ArtemiS SUITE example projects with sample data files. ArtemiS SUITE systems are available for hands-on exercises throughout the course.

Participants are encouraged to bring their own data files

Program:

• Reference quantities and channels
• Digital and “Analog” Tachometers: Reasons and Interconversions
• How ArtemiS SUITE evaluates pulses
• Selecting and using single or multiple reference quantities
• Displaying RPM or reference quantity histories
• Analyses vs. “RPM” (vs. any quantity)
• Psychoacoustics and order-related psychoacoustics
• Advanced analyses (ATP 06)
• “Live” dials for RPM and other reference quantities
• Exporting tachometer channels
• Recording calculated tachs in HEAD Recorder
• RPM Generator
• Filters
• Order analysis
• Variable filtering (Sound Engineering project)
• Order signal generator (part of ATP 10) (SUITE Signal Generator Project)
• Modulation analysis
• Order modulation analysis
• Resonances, perceptual impression,
• interactively canceling and reading values
• Reference-variable transfer functions, etc.
• Torsional analysis
• Gated time cuts
• Gated DFT and high-resolution analysis
• Time with instructor to review their files and N&V concerns (PM)

In this seminar, you will learn how to use automation functions of ArtemiS SUITE to automatically handle frequently recurring tasks. You will learn how to summarize an individual sequence of work steps in an automation project that processes individual files, or larger amounts of data, at the push of a button.

In addition, this training demonstrates the possibility of integrating the automation practices into external solutions using ArtemiS SUITE’s APIs.

Program:

• Automation project concepts (recording, analysis, filtering, statistical operation, export, report, etc.)
• Automated cutting of marks based on speed or time information
• Simplified processing of test series
• Creating an automation project from a pool project
• Automated selection of files based on file name or documentation
• Automatically select specific channels (e.g. by name) for analysis
• Use of the automation in SUITE Recorder
• Basics of the ArtemiS suite API

Modal Analysis is done with HEAD acoustics!  This 1-day course provides the basics of performing modal analysis via the family of structural analysis modules in ArtemiS SUITE (ASM40, 41, 42, 43).  After a very brief review of theory (1 hour), the course focuses on data acquisition for modal analysis using the Impact Measurement workflow, curve fitting, and shape investigation.  The mode shape comparison feature and the Operating Deflection Shape (ODS) and Time Domain Animation Project will also be reviewed.

Hands-on testing and data examples will also be available.

Program:

• Brief review of structural analysis
  • Definition of Experimental Modal Analysis (EMA)
  • Natural frequency
  • FRF vs.  mode Shape
  • Curve fitting
• Measurement setup and digital signal processing (DSP)
• EMA pre-study
• Using the Impact Measurement Tool in ArtemiS SUITE
  • Roving Impact hammer method
  • Roving sensor method
  • Structure/Measurement Point Library
  • Analyze/curve fitting
• Shape Comparison Table
• Time Domain Analysis/ODS