Developments In Cardioid Subwoofers
It is very often hear audiences complain sub is not strong enough however the artists some time will yelling too much low frequency especially in this line array world. This happen because most of subwoofer is Omni directional and cause the sound towards the stage, performers, and then reflecting off rear walls to produce late arrivals in the main listening areas. That reflection cause delay sound and west many of speakers energy. Because of that reason, the manufacture start create more powerful low-frequency speakers. The Multi-kilowatt dual-18 enclosures are now most common sub in the industry and most of them also provide rigging hardware and software((Electro-Voice LAPS, d&b audiotechnik ArrayCalc, Meyer Sound MAPP, Martin Audio Viewpoint, etc.) for set up the cardio subwoofers.
Cardio subwoofer setup is basically by reverse one or two speakers and set up delay as back reflection time and decrease the sound wave. The revers speaker cause the Omni-directional become Cardio pattern.
I recently read and did a blog on this article as well. I like how you approached explaining this article and how you listed the companies that provide the rigging hardware and software. This version of this article sums it up very well and is well explained. I also like the graphic of the cardioid subwoofer setup flown next to a line array.
ReplyDeleteInteresting picture I learn a lot from your posts. And I had no idea that the cardiod speakers are more commonly being set up on live productions and the reasons why. Thanks
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