JYMacIII Posted December 5, 2017 Report Share Posted December 5, 2017 I can’t seem to find the room size and placement Josh uses for his new inroom CEA 2010 measurements. Does anyone have that info? Thanks. Link to comment Share on other sites More sharing options...
SME Posted December 5, 2017 Report Share Posted December 5, 2017 I don't know of any such thing. If Josh is doing this now, it's the first I've heard of it. Link to comment Share on other sites More sharing options...
JYMacIII Posted December 5, 2017 Author Report Share Posted December 5, 2017 Yeah, I just noticed it on the latest Rythmik measurements. Link to comment Share on other sites More sharing options...
SME Posted December 5, 2017 Report Share Posted December 5, 2017 7 minutes ago, JYMacIII said: Yeah, I just noticed it on the latest Rythmik measurements. I can't find what you are referring to. Do you have a link? Link to comment Share on other sites More sharing options...
JYMacIII Posted December 5, 2017 Author Report Share Posted December 5, 2017 http://data-bass.com/data?page=system&id=145&mset=171 Link to comment Share on other sites More sharing options...
dgage Posted December 6, 2017 Report Share Posted December 6, 2017 That link doesn’t work for me. As as far as I know, he is still following this methodology, which is traditional ground plane testing in the middle of a field. This is also how most subwoofers are tested. http://www.audioholics.com/loudspeaker-design/powered-subwoofer-testing-outline-and-procedures-overview The only real alternative is testing in an anechoic chamber but those are hard to come by and would be $100,000+ to build right. Testing in the room would not be testing the sub, it would be testing the sub AND the room. Not very valuable since we likely don’t have the same room available as he tested in. Link to comment Share on other sites More sharing options...
JYMacIII Posted December 6, 2017 Author Report Share Posted December 6, 2017 He still follows that methodology, but one measurement he does is in room and the other is anechoic. I think I might have found the room from a blog back in 2011: http://data-bass.com/data?page=content&id=80 Link to comment Share on other sites More sharing options...
SME Posted December 6, 2017 Report Share Posted December 6, 2017 I guess I missed that. Anyway, he probably did the CEA in-room just to show how CEA test results can vary dramatically outdoor vs. indoor. Every room is different, and there's no way to really standardize in-room testing. As such, it's mainly there to show the large differences that are possible. Link to comment Share on other sites More sharing options...
Ricci Posted December 12, 2017 Report Share Posted December 12, 2017 I have been doing most of the commercial subs in my room as well for quite a while. Mostly as a data point on the room acoustics effects I have and how distortion is lowered in the deep bass. Mic is at head position at the main seat and subs are placed in the same corner each time. Only valid for my room and that exact placement. Link to comment Share on other sites More sharing options...
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