I’m going to show you how to quickly estimate alignment delay values in your head, which is a hell of a party trick if you’re at… a system optimization party? This might seem mathy, but it’s not. If you passed middle school math, you can handle this. We’re going to look at the delay needed …
This post comes on the heels of this article by my friend Jim Yakabuski, and my recent article about double-patched channels, so if you’re not up to speed on those, check them out and then come back. I’ll be here. Back? Okay great. So the discussion now is that we want to split a …
The practice of double-patching channels is more common than ever due to modern consoles with high channel counts, but it’s not a recent innovation: a long-standing technique when mixing monitors from front of house has been to use a “Y” cable to split key inputs like lead vocal, which allows the operator to have independent …
Theater retrofit. Actually a retrofit of a retrofit of a retrofit. Concert hall designed for acoustic transmission, hideous six-horned center cluster added in the 80s, replaced a decade ago with a modern L/R “line array” system and a center sub, and today’s job is to install a pair of flown fills to handle the coverage …
Often, folks are concerned about using parametric EQ filters to fix low-frequency repsonse issues in the subwoofers, for fear that the phase shift from the PEQ filters will throw off the alignment with the mains. In most cases, this isn’t something to be concerned about. Here is a matched pair of 4th order Linkwitz-Riley filters. …
I’ve seen a couple things lately related to console EQ that I wanted to shed some light on and hopefully get a good dialogue going. But we’re gonna keep it short and sweet. “Air Band” EQ A couple consoles running at at 96 kHz will allow tuning EQ bands out past 20 kHz. (Some call …
“It’s an easy gig. Just three microphones.” Sounds good, right? But as the day went on, things began to change. The event was a “roundtable” discussion between a moderator and two CEOs who each had a net worth in excess of a billion dollars. They have “people.” There was a fair amount of “hovering” going …
One of the cardinal sins of the average FOH is measuring the PA with both sides on. This sounds perfectly normal to us, because it’s what we’re used to hearing, but the analyzer reveals the truth – the comb filter – if we know where to look. To illustrate, here are two actual traces measured …
Thanks to the proliferation of powered loudspeakers, active subwoofers sporting built-in “cardioid mode” DSP settings are on the rise. But what’s going on under the hood? Let’s take a look at the principles behind cardioid subwoofer arrays, clear up common confusions, and learn how to deploy these arrays in the field. Before digging into how …