Tutorial videos

A whole set of tutorial videos is available allowing an efficient daily self-training

The videos, as well as attached data, are proposed for the NVGate software platform as well as for the other software solutions. The videos are accessible here below and on the OROS youtube channel. 

On top of that, the Tutorials explorer enables an offline access with short step tutorial videos as well as other features.

NVGate

OROS Noise and Vibration software platform

Rotating analysis with FFT

How to build a setup for online rotating analysis using the FFT plug-in? How to post-analyse the recorded signal and perform an order extraction from the time-frequency waterfall?

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#Rotating #FFT #OCT #NVH #Transient speed #Waterfall #Order Extraction #Delta RPM

 

 

Impact hammer

How to build a setup for impact test measurement and create an automatic report.

Find also some tips to make your measurement easier. The FFT plug-in is used. The measurement is triggered on the hammer impact using an edge detection event.

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#Structural dynamics #FFT #Bump #Impact #Hammer #EMA #ODS #Modal #Force #Response #Windowing #Peak tracking

Force and response windowing

How to build a setup using the force and response window?

In most cases uniform windowing is preferred but sometimes force/response windowing is required.

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#Structural dynamics #FFT #Bump #Impact #Hammer #EMA #ODS #Modal #Force #Response #Windowing #Peak tracking

Acquisition sequence

How the acquisition sequence can be used to automatically update a set of settings such as Label, Node, Direction…?

This is very useful for modal acquisition for example.

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

 

Record signals

How to perform a signal recording?

In this example, the recorder mode is “start to stop”: the user starts and stops manually the recording. Other modes are available (Start to time, time to stop).

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#Recorder #Signal acquisition #Temporal data #Time data

Sound insulation

How to build a setup for sound insulation measurement and the obtained results in 6 Steps.

The OCT plug-in is used. Operators enable to compute the average inside level (microphones 1 and 2) and the level difference between the inside and outside level.

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#OCT #Building acoustics #Level difference #Sound insulation #Inside level #Sound pressure level

RT60 with interrupted source

How to build a setup for RT60 measurement using the interrupted source method.

The analyzer output is used to generate a white noise. Thanks to a macro, the whole measurement is automated. It shows how to compute T20 or T30 from the decay curves.

The setup built during this video and the recorded signal are available clicking on the myOROS button below.

#OCT #Building acoustics #Reverberation time #Anechoic chamber #Room acoustics #Decay curves #Sound pressure level

Sound Quality

Basic operations

How to analyze an imported sound and how to export results?

It compares the resolution of FFT spectrogram and auditory spectrogram, and shows how to use harmonic cursor.

The project used for this video is available clicking on the myOROS button below.

#Sound Quality Plus #Psychoacoustic analysis #Percentile analysis #Harmonic cursor

Sound filtering

How to filter sound by a cascade of frequency-based and order-based filters.

It shows how to batch processing multiple signals and how to compare similar sounds by using the distance spectrogram and playback list.

The project used for this video is available clicking on the myOROS button below.

#Sound Quality Plus #Frequency-based filter #Order-based filter #Playlist management #Batch processing #Distance spectrogram

Sound design based on Auditory Spectrogram

How to design sound via innovative editing and resynthesis of auditory representations.

The project used for this video is available clicking on the myOROS button below.

#Sound Quality Plus #Sound design #Auditory spectrogram #Time/frequency contour #Sound resynthesis

 

RPM depending analysis

How to do RPM depending display with order cursor. It shows how to generate and post processing tacho signal from FFT spectrogram.

The project used for this video is available clicking on the myOROS button below.

#Sound Quality Plus #RPM-based display #Order analysis #Tacho signal extraction

Underwater Holography

Demonstration

How to localize noise sources with acoustic maps, how to quantify and rank sources with sound power, and how to predict noise radiation in the far-field, based on the sound pressure measured by an array close to the test object.

The project and data used in this video are available clicking on the myOROS button below.

You may also read Underwater sound source localization using Near-field Acoustic Holography (NAH) application note.

#Underwater Holography #Source localization #Source ranking #Far-field acoustic signature prediction #Acoustic map #Sound intensity #Sound power

How to concatenate two arrays?

How to automatically concatenate two partial circular arrays via merging two projects.

#Underwater Holography #Circular array #Automatic concatenation

SoundSpot-Office demonstration

How to post-analyze data measured by SoundSpot to generate acoustic maps and acoustic videos for source localization?

The data used for the video is available clicking on the myOROS button below.