Robert Bosch Engineering&Business Solutions(P) Ltd Apps
iNVH 2.1.1
The iNVH app is a unique application developed by RobertBoschEngineers, to overcome one of the challenges of fieldengineerstoday – An innovative tool to support subjective noiseassessmentsin the field and easy connectivity to Bosch NVHengineers. The toolcomes in with a simple to use sound level meter(SLM) module,overall level vs. time module and time data module.The app usesbasically the inbuilt microphones and accelerometers,which makesit very convenient. The app comes built in with latestcalibrationvalues for most mobiles (as every mobile is different inits ownway). However, there is also a sound calibration toolincluded toimprove the accuracy of the noise measurement. Thiscalibrationtool is an octave band based tool, as compared to mostsingle valuecalibration available in the market. The octave bandcalibrationallows the user to do a sensitivity correction in eachand everyfrequency band. For certain mobiles the level of accuracymay notbe up-to the mark, hence it is always advisable to do acalibrationwith an already calibrated phone in the market in orderto improvethe accuracy. Vibration however is limited to usefulfrequency of100 Hz and the mobile weight. Thanks to the interactiveand simpleGUI, in addition to being a tool to support subjectiveassessments,the app can also be used by students who intend to dosome simpleacoustic measurements for their projects, or operatorsafetyassessments and many other applications. Another feature ofthe appallows user to record either the processed data or the rawdata tobe saved and then sent to Bosch engineers for furthersupport orfeedback. Theoretically there is no limitation to thesize of datathat can be stored, and it is depended on the memoryavailable formobile. The app by default contains noise calibrationvalues formany of the flagship android mobiles and are documentedin EULA(refer EULA) Currently the app only supports android mobilephonesand not android tablets.
