Data Explorer Software

Data Explorer

XL2 Data Explorer is a PC-based software application with a powerful data processor for easy and fast analysis of sound level measurement data. Visualize, analyze and control millions of data points with this tool that is dedicated to acoustic consultants and noise measurement professionals. It provides a convenient way to view and manage your data and quickly create customized reports.

At a glance

  • Data visualization
  • Audio playback synchronized to graph
  • Customized reporting


XL2 Data Explorer


  • Data visualization
  • Fast zoom and pan
  • Audio playback synchronized to graph
  • Markers with on-the-fly calculation
  • Automated tonal and impulsive marker generation
  • Percentile levels Ln calculation
  • Rating level Lr calculation
  • Customized reporting

Introduction to XL2 Data Explorer


Chart View

The chart view shows the logged levels, markers, audio player, spectrogram and frequency spectrum.

XL2 Data Explorer

Select Multiple Levels

A drop down menu allows you to select the individual levels. All selected noise levels are displayed in the chart. Select one or more, or a range of one-third octave bands for display against time.

XL2 Data Explorer

Zoom and Pan

Extremely fast zoom and pan response over the entire data log period, even for very large data sets.

XL2 Data Explorer


Mark areas of interest in the graph with a text description. Choose "Include Markers" for calculations of contributions by specific noise sources, enabling simple source ranking. Eliminate unwanted noise sources from your final result using "Exclude Markers". The marked areas are summed and appear in your report.

XL2 Data Explorer

Level Statistics

XL2 Data Explorer offers a detailed statistical analysis of the logged sound level measurement data. The percentiles can be calculated for wide band levels as well as 1/1 and 1/3 octave band levels. Data Explorer calculates the level statistics of the complete measurement or marked time periods as part of the post-measurement analysis. Excluded periods are considered.

XL2 Data Explorer Level Statistics 100Hz


The XL2 Data Explorer calculates the levels Lden, Ldn, Lday, Levening, Lnight with individual weightings (penalties).

XL2 Data Explorer

Result View

The tabular representation shows all results in a structured and intuitive way, detailing the original recorded results, summaries of the areas marked for exclusion and inclusion, and the final result. The results can be exported to EXCEL.

XL2 Data Explorer Audio

Audit Intervals

The noise level data is divided in measurement intervals with selectable length of 5, 10, 15, 30 or 60 minutes. The corresponding levels of these audit intervals are calculated and presented in the chart and result view.

XL2 Data Explorer


Audio recordings are time-aligned to the graphs. Listen to the recordings for a more objective analysis of the noise sources with manual or automatic gain control.

XL2 Data Explorer Audio


Complete your professional reports with customized titles and comments. The XL2 Data Explorer automatically adds relevant header data such as the measurement date, calibration information, instrument setup etc., and compiles a tailored report. Simply add your own company logo.

XL2 Data Explorer



Get the Data Explorer Software

Data Explorer Option

In order to import data from your XL2 Sound Level Meter to the Data Explorer PC-Software, the Data Explorer Option needs to be purchased and installed on each XL2 analyzer that will use it. Data which has been recorded prior the installation of the Data Explorer Option may then also be imported. The Data Explorer software can then be installed on an unlimited number of computers in order to analyze this imported data.

Data Explorer 365

An annual subscription service is offered as an alternative to the Data Explorer Option. The purchase of a Data Explorer 365 subscription allows the unlimited import of measurement data from one XL2 Sound Level Meter into the Data Explorer PC-Software for a period of one year.

Multiple Installation

The XL2 Data Explorer software can be installed on multiple computers. This provides consultants with the freedom to distribute their measurement projects among team members and clients.

Technical Requirements

The software is compatible with Windows XP, Vista, 7, 8 Pro, 8.1 Pro, 10 and requires a video board with a shader-model 3.0 or higher (DirectX 9.0 c). The full software functionality is enabled by having the following options installed in the XL2 Sound Level Meter:

  • Extended Acoustic Pack
  • Data Explorer Option or Data Explorer 365


You may download the Data Explorer PC software with demo data for evaluation.

Download here



XL2 Data Explorer Option

permanently installed option in XL2 Sound Level Meter

Data Explorer 365

annual subscription service

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