![]() ![]() The follow are some requests we have received and we can show prototypes of some of these.: NoiseLAB will be exhibited at the above noise conference on October 4, 2021, and will be held in Danish.Īt the conference we invite your input of what new features are most important for you. Those customers who have purchased noiseLAB Professional in 2021, will receive a 10% discount on their next purchase. You can activate using the demo key on the same page which also has a link to the full User Guide.įor a personal on-line interactive demo or for detailed questions: contact Carsten Thomsen at fine print: We have a free 30-day return policy from date the license key is sent to you: No questions asked. You can download the fully-functional demo at:īe sure to download both noiseLAB Capture 4.0 and noiseLAB Batch 4.1. The latest date we can receive your purchase order and invoice in 2021, is December 27 when you order direct. Upgrading from noiseLAB 3 Professional: The upgrade price is €995. When you buy factory-direct in the EU, the price is €3950 minus 10% which is €3555. ![]() This gives the convenience of placing the purchase order in the desired financial year. ![]() To celebrate the holidays, we are providing a 10% discount on noiseLAB Professional in all of December 2021 and January 2022. Her er den korrekte tone analyse på samme data beregnet med noiseLAB 4.2B1:ĭet skal bemærkes at disse analyser er udført med en kalibrerings faktor på 93,8 dB i stedet for 94 dB som i vejledningen.Įn prøveversion af noiseLAB Batch Processor 4.2 (Beta) er planlagt medio december og er gratis for alle eksisterende brugere.ĭen endelige version af 4.2 er planlagt til primo 2023. Herved kan man konstatere at disse ikke skal regnes med i målingen.įejlen opstår primært ved lavere frekvenser, og karakterises visuelt ved meget brede tone områder. I ovennævnte figur, nederst til højre vises at toner i 51 Hz båndet har en båndbredde på 12.2%. ĭen tilhørende toneanalyse som anvist ved opgaven er baseret på et FFT Spektrum med 3 Hz linjeafstand midlet over 90 sekunder og med 20 Hz nedre grænse for tone analyse (lineær frekvens vægtning Z)ĭen eksisterende udgave af noiseLAB Batch 4.1 kan benyttes til at kontrollere hvad 3 dB båndredden som % CB (af den kritiske båndbredde) er. The following is available in English here.ĭer blev i forbindelse med afviklingen af den 26 sammenlignende måling i 2021 opdaget et fejl i noiseLAB, idet 10% tonekriteriet for en analyse af et 90 sekunder langt lydklip burde betyde en frasortering af tonen i det kritiske bånd (CB) med centerfrekvensen 51 Hz. The above is available in Danish here Tone analyse og noiseLAB. The upgrade is available free of charge for all existing users of noiseLAB Pro. NoiseLAB Batch Processor 4.2 (Beta) with the above bug fix is planned for mid-decemberand the final version early 2023. The correct tone analysis is shown in an early version of noiseLAB 4.2B1 below:įor participants in “Store Støjdag” in Denmark 2021, the calibration value used was 94.0 dB, vs. The bug is relatively rare, and is primarily seen with broad, relatively flat “peaks” at lower frequencies. Hence it should not have been identified as an audible tone. In the above screen shot, you can see the broad red range centered at 51 Hz (red identifying it as an audible tone) has at 12.2% width of the critical bandwidth, exceeding the 10% of the CB (see the lower right hand corner). The current shipping version, noiseLAB Batch 4.1 can be used to check whether it shows the correct tone values with respect to the 10 dB criteria of the Critical Bandwidth (CB). Tone analysis in noiseLAB Batch Processor 4.1: The tone analysis was based on an FFT Spectrum with a line spacing of 3 Hz from 20 Hz to 10 kHz with linear RMS integration of 90 seconds and a linear (Z) frequency weighting. In the screen shot below the 51 Hz band should not have been identified as a tone. In the Danish comparative noise measurement in 2021, a bug was identified relating the 10% tone criteria. ![]()
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