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In Reply to: RE: Room treatment advice/SPL meter posted by MylesJ on February 14, 2020 at 10:05:40
Would this be better than than the NIOSH app I downloaded?
Follow Ups:
The NIOSH app will get you SPL. REW will get you waterfalls that show you the breakdown by frequency. The main reason I recommended it is that several of the acoustics firms can help you better if you provide them with more data and most of them are familiar with the REW software. Spending some money to get good data should mean that you get things right the first time which is usually cheaper than trying a few things. One poster talked about the cost of getting a tech to take readings for you.
You run REW on your PC. It outputs tones that you send to your amp via regular RCA connectors and captures the readings produced by those tones. If you use the REW results to get the best water falls and then pay for treatments on what it left you will usually need to buy less absorbtion and diffraction materials.
I got the microphone listed below after not getting reliable readings for a $30 unit.
So I'll just run the RCA cables to one of the available line level inputs of the amp?
That is correct. Because the software knows what is being sent it can tell what is different about what comes back. If you have a subwoofer you might want to start the analysis at 30hz. I think it starts below 18hz which can create loud rattles if you are running the default test.
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