Room EQ Wizard V5 Beta
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Room EQ Wizard V5 Beta

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Room EQ Wizard is a Java application for measuring room responses and correcting modal resonances. It includes tools for generating test signals; measuring SPL; measuring frequency and impulse responses; generating phase, group delay and spectral decay plots, waterfalls, spectrograms and energy-time curves; generating real time analyzer (RTA) plots; calculating reverberation times; displaying equaliser responses and automatically adjusting the settings of parametric equalisers to counter the effects of room modes and adjust responses to match a target.

New in V5

  • Phase & Group Delay (measured, minimum, excess), Step Response and Spectrogram plots
  • Phase wrap/unwrap, minimum phase generation, IR delay calculation and adjustment
  • Separate windows for overlays, RTA and EQ functions
  • New algorithms for EQ adjustment offering exceptional tracking of target responses, can be used over any frequency range
  • Waterfalls of predicted results of EQ can be viewed in the EQ panel and can update live as filter settings are adjusted
  • Support for QSC DSP-30 and Crown USM 810 parametric filters
  • "Modal" filter setting provided for parametric EQ filters to aid in correcting modal decay

V4 Features carried over

  • Still free!
  • Support for the Behringer Feedback Destroyer Pro models DSP1124P and FBQ2496 and the TMREQ equaliser in the TAG McLaren AV32R DP and AV192R AV processors
  • Signal Generator offering sine waves, square waves, linear and logarithmic sine sweeps, random pink noise (full range, speaker calibration, sub calibration and custom filtered) and periodic pink and white noise
  • Measurement and impulse response import from text or WAV files
  • Frequency response measured using logarithmically swept sine signals for fast, accurate measurements with approx 0.36Hz resolution across the measured range or via real time analyzer with up to 1/48th octave resolution
  • Spectral decay plots, waterfalls and energy-time curves
  • Reverberation times derived in accordance with ISO 3382 in octave or one-third octave bands with results for Early Decay time (EDT), T20, T30 and an optimal fit RT60 figure

The new Overlays window

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The new RTA window

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The new Spectrogram plot

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Examples of the new EQ features in action

The original response

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The effect of the automatic target match applied to the range 20 .. 100Hz

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Before and after EQ with smoothing

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The filters generated - note broad boost centred on 48Hz to balance the combined effect of the cuts

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The filter set

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The author has no affiliation with TAG McLaren, IAG or Behringer. All trademarks belong to their respective owners.

Copyright © 2004- John Mulcahy All Rights Reserved








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