21. June 2017 Swen Mueller is back in Europe During the visit of the NTi Audio booth Pro Light & Sound in Frankfurt, we met Swen Müller, an electronics engineer and signal processing specialist who is well-known in the audio scene as the author of expert articles and developer of measurement software. Him having vanished from the local scene for more than a decade, we took the opportunity for a short interview. Read more
30. May 2017 Noise Monitoring Station with Remote Control With a Noise Monitoring Station from NTi Audio, both short-term sound level measurements and long-term monitoring can be easily achieved. At the core is an XL2 Sound Level Meter, which in turn connects to the Internet via a NetBox. The remote access to the monitoring station is directly via the NTi Audio Gateway or the self-managing NoiseScout Web Portal. Read more
24. May 2017 XL2 Sound Level Meter Calibration according to IEC61672 NTi Audio offers calibration services for its devices in addition to the broad range of audio, acoustic and vibration measurement solutions. Besides the calibration of individual system components, the sound level meter calibration according to IEC61672-3:2013 is now available for the XL2. The specified procedures for periodic sound level meter testing is followed and a comprehensive calibration certificate presented. Read more
19. April 2017 New TalkBox Test Signal to Measure Speech Intelligibility in Schools The intelligibility of speech in schools is an important part of successful learning. According to the ANC (Association of Noise Consultants), the typical speech level for a teacher in the classroom (at 66.5 dB) is higher than the normal speaking level. For this reason, NTi Audio now offers the speech intelligibility test signal for the TalkBox at this level. This is a free product upgrade for all TalkBox users. Read more
18. April 2017 Let’s Clear Up Some Things About FFT This second part of this series deals with specific aspects that are helpful in the practical application of FFT measurements. FFT measurements are used in numerous applications. The results are usually presented as graphs and are easy to interpret. For accurate FFT measurements, there are some things to look out for. This article provides valuable tips. Read more
13. April 2017 Class 1 Sound Level Meter with Attached Microphone The XL2-TA Sound Level Meter has established itself as one of the most popular class 1 measurement instruments worldwide. Its extensive basic functions coupled with the open data format allow for efficient measurements. The extended type approval for operation with an attached microphone, which was recently received in Austria, further increases the value of the instrument. Read more
23. March 2017 Determination of the Rating Level for Neighborhood Noise Assessment according to DIN 45645 The rating level Lr is used as a measure of the noise level in a neighborhood. The XL2 Sound Level Meter ensures that all necessary measurement data is recorded. The XL2 Data Explorer PC-software is tailored to the purpose of evaluating and calculating the Rating Level. Noise penalties for tonality and impulsivity, according to the DIN 45645 standard, can be automatically added. This provides an expert tool for rating and assessing noise objectively. Read more
23. March 2017 Noise Assessment according to BS 4142:2014 with the XL2 The XL2 Sound Level Meter is built for precisely measuring and recording industrial and commercial sound. The Data Explorer PC-software evaluates the recorded data in detail and calculates the Rating Level Lr. A character correction for tonality and impulsivity can be automatically added using the objective method detailed in BS 4142:2014. This provides an expert tool for rating and assessing sound of an industrial and/or commercial nature. Read more
22. March 2017 Italian Noise Assessment according to DM 16 marzo 1998 The XL2 Sound Level Meter is built for precisely measuring and recording industrial and commercial noise. The Data Explorer PC-software evaluates the recorded data in detail and calculates the Rating Level Lr. It is thus possible to verify the levels of noise and impulse data according to the DM 16 marzo 1998 standard. This provides an expert tool for rating and assessing industrial and transport noise. Read more
19. March 2017 Austrian Convention Center puts their trust in the XL2 The stunning Montforthaus Culture and Convention Center in Feldkirch, Austria, was officially opened in January 2015. Symphony concerts, fairs, social events, conferences, club events, school balls, lectures and pop concerts are a regular feature in this conference and congress facility which can accommodate up to 3,000 participants. The audio quality and intelligibility of speech presentations in ... Read more