RTW LQL – Loudness Quality Logger

Logging console for collecting Loudness and TruePeak data of various TM7, TMR7, and TM9 units of the TouchMonitor series

The RTW TouchMonitor range is a high class series of audio monitoring devices used for various broadcasting applications. Part of the functionality of these products is to measure the loudness of incoming audio data. The result of the measurements is visualized for a lot of applications in realtime, but there is also a requirement of logging data over time.

With the LQL - Loudness Quality Logger RTW offers a logging console that collects data from various TouchMonitor devices directly via IP connection or external USB storage devices in order to provide an offline storage capability that goes along with some add on features.

The first version of the Loudness Quality Logger is a program for Windows® OS based PC’s. It provides logging of timecode or realtime based loudness and TruePeak data from TouchMonitor TM7, TMR7, and TM9 series with Loudness licence and Logging Data Server licence option SW20014 activated. The Logging instrument available with the licence has to run in IP mode. A maximum of two audiogroups per unit can be set to provide data to be collected by the LQL. Main and secondary limits may be applied and can be used to generate various alarms to indicate and to log the exceeding of limits set by legal or in-house regulations for example. All status information of the device is stored with the logged data.

The Principle

The Loudness Quality Logger provides logging of timecode or realtime based loudness and TruePeak data from TouchMonitor TM7, TMR7, and TM9 series with activated Loudness and Logging Data Server license. The Logging instrument available with the Logging Data Server license should run in IP mode. A maximum of two audiogroups per unit can be set to provide data to be collected by the LQL. Main and secondary limits may be applied and can be used to generate various alarms to indicate and to log the exceeding of limits set by legal or in-house regulations for example. All status information of the device is stored with the logged data. If the logging instrument on the TouchMonitor was operated in USB mode and the data was recorded on a USB storage medium, these can also be recorded and read out with the LQL.

Features

  • Logging console for Windows® OS based PC's
  • Timecode or realtime based collection of Loudness and TruePeak data of various TM7, TMR7, or TM9 units
  • A maximum of two audio groups with Logging instrument on each device can be connected (precondition: licence SW20014 is activated)
  • Data collection via IP connection or from external USB memory devices
  • Status overview of connected units and audio groups (main window)
  • Graphical view of logged data over time of an audio group with up to two of the four permanently captured parameters (detail window)
  • Different scaling factors for the display of different spans of time
  • Two-stage definition of limits to signal violations
  • Markers for sequential analysis
  • Numerical view of all measured parameters

Operation requirements

  • PC with Dual-Core processor, min. 2.5 GHz
  • Microsoft® Windows® 8.1 or higher
  • Min. 2 GB RAM, 4 GB RAM recommended
  • Min. 50 MB hard disc storage left
  • Additional disc space recommended for storing logging data and backups
    (amount depends on number of connected audio groups)
  • Network connection
  • TouchMonitor with Logging instrument activated and connected to the network