By far, the most common system-room interaction will be a "ramp up" of low frequency energy bouncing off the walls and being reflected back into the listening area, which can make the system sound muddy, and a common adjustment is reducing the low frequency range of the system with EQ. Since every system and room is different, there's no one-size fits all solution here.How can I compensate for what happens when I put my sound system in a room?.Another common example is lack of high frequency on the edges of the coverage area, because we have moved outside of the coverage of the loudspeaker's horn. That could mean too much low frequency in the front because we're closer to the subs, or not enough high frequency in the back, because of HF air absorption. Spectral Variance or Tonal Variance - the tone of the system varies over the space.Common example: too loud in the front, too quiet in the back.
![smaart 7 crash smaart 7 crash](https://cdn.shopify.com/s/files/1/0510/7489/1973/files/NewsletterSgnupTlt2_1500x.jpg)
Level Variance - the show is louder in some seats than others.The way a system's coverage differs over the space is called variance, and two primary forms of variance that we are concerned with are:
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If the coverage of the sound system is wildly different over the space, the mix engineer has no confidence that the decisions they are making at mix position are actually translating to what the rest of the audience is hearing.
![smaart 7 crash smaart 7 crash](https://shoppingsound.com/wp-content/uploads/2017/11/22294-4.jpg)
So I’ve created this post as a new “landing page” to take you through some of the basic concepts and give you some foundation for the resources that follow. This is not very helpful to an interested individual showing up here with no context.Īre you here for the SPL Measurement FAQ? Click here. Although I've written a bunch of posts about it, each one was to address a specific question or topic, which means that, looking back on them all, they’re in no logical order whatsoever. You are probably here because you are interested in sound system optimization. Welcome! This is a revised and updated version of my previous landing page / post archive.