At the 2009 Prolight+Sound-Musikmesse in Frankfurt, WaveCapture highlighted the just-introduced Live-Capture Light, an easy-to-use, PC-based software tool for real-time live sound measurements that now includes a two-channel analyzer for the Lake Controller analyzer interface.
Optimized for front-of-house use, Live-Capture Light measures time and frequency domain simultaneously using program material (music and speech), before or during a performance, with the audience present.
Live-Capture Light is dedicated to sound reinforcement system optimization with a range of unique analysis tools that provide fast and accurate tuning information. The full suite of features includes delay finder with group delay and Cepstrum analysis, Auto EQ finder, sound level logging and display of reverberation time graphs.
Sophisticated windowing functions allow the user to window out room reflections and focus on either equalizing the direct sound (while retaining low frequency resolution) or on spatial averaging of the room transfer function.
Features
• Real time Magnitude, Phase, Group Delay, PIR, ETC and Cepstrum displays
• Displays both frequency and time domain at high refresh rates in real time
• Complex coherence display including phase stability
• Multiple time windowing for room reflection suppression
• Analyzing tools include; Delay finder, Auto EQ, SPL and LEQ logging
• Curve Manager holds up to 16 captured measurements
• Noise, Sine and Multi-tone generator
For room tuning and sound reinforcement system optimization, Live-Capture Light supports spatial averaging. This allows the user to perform multiple measurements throughout the coverage pattern of the sound reinforcement system and base system equalization on the weighted, spatially-averaged response.
The Auto Peak finder can automatically find peaks and dips in the magnitude response, in a predefined frequency range. These peaks or dips can be identified as parametric filters with the Auto EQ tool.
The Auto Delay updater will facilitate the selection of microphone position and compensate for the time variance between positions.
Live-Capture Light uses threaded computing to acquire impulse responses between 0.35 to 11 seconds, and then applies suitably large FFTs to display time domain and frequency domain data at a maximum 23.4 frames-per-second refresh rate.
Advanced complex averaging is used in both domains, taking the coherence and phase stability into account. The default resolution is 96 points per octave with a resolution of up to 192 points per octave available.
Take our Photo Gallery Tour of new products from this year’s Prolight + Sound – Musikmesse.