Originally Posted by ereed
Yes, each speaker should be measured full range on their own, also subs should be measured with highest xover like you mentioned. Then pick xover point 80 or 100hz depending on how your center and subs look on their own and then run center and sub together with xover point you choose. Then finally use sub distance tweak in prepro to get xover area flat.
As far as bass traps goes, corners is where they collect low frequency waves so that's where I would start.
Thanks Ereed, I will do that tonight.
To recap I will be:
Running speakers on Full w/ LPE on LFE at 120hz (normal) Take Measurment on L,R and C.
Running speakers on Full w/ LPE on LFE at 250hz , Take Measurment on L,R and C.
Running speakers on Small w/ LPE on LFE at 120hz , crossover on speakers at 80hz, take measurment on L,R and C.
Running speakers on Small w/ LPE on LFE at 250hz, crossover on speakers at 80hz, take measurement on L,R and C.
Running speakers on Small w/ LPE on LFE at 120hz , crossover on speakers at 90hz, take measurment on L,R and C.
Running speakers on Small w/ LPE on LFE at 250hz, crossover on speakers at 90hz, take measurement on L,R and C.
Running speakers on Small w/ LPE on LFE at 120hz , crossover on speakers at 100hz, take measurment on L,R and C.
Running speakers on Small w/ LPE on LFE at 250hz, crossover on speakers at 100hz, take measurement on L,R and C.
^ Is that right? If you can tell, I'm still a bit confused
Edit: Oh and should these measurments be ran with Audyssey Flat, Ref, off or all of the above?
^ Note that the above does not include any PEQ or frequency adjustments on the actual sub itself - which is something that I haven't done before, but I believe that PEQ is whole nother rabbit whole..and one that may be able to help me, but one that I am entirely unfamiliar with.
As far as the sub distance tweak - I do not know what that is, but I am researching and I think it's just done by subtracting a few feet that Audy sets my sub at?
As far as the bass traps - just thought I'd ask - and I will focus on the corners when I start research in that area, thank you.
Originally Posted by AustinJerry
You make recommendations based on the RT60 curve without explaining exactly what you mean. For example, what does “an unnatural RT60 shaped curve” look like? Perhaps you can post examples of a natural and an unnatural RT60 curve, from your perspective? And what does an inverted RT60 look like?
The correlation between the RT60 measurement and “good sounding audio” is unclear to me. Perhaps you can provide a link to the theory behind this claim? Personally, I rely on the Waterfall and Spectrogram to assess bass quality, and use the ETC measurement to identify and eliminate unwanted reflections in the spectral range. Emphasis on “unwanted”, not “all”. And I agree with Ereed—it is difficult to over-trap in the modal region.
Originally Posted by Skinfax1
Sorry, I will not use Google for you. The info is not hard to find. But to answer the question: a naturally shaped RT60 shows increasing decay times with decreasing frequency. With inverted I mean i.e. bass decay times being shorter than the midrange. That's an unnatural behaviour and our brain has problems to judge sound correctly in such an artifically sounding environment. Listening is quite stressing and fatigue sets in earlier compared to sooms with a natural decay behaviour.
While it's great if people understand the importance of room acoustics, it's also important to understand not to overdo things.
It's a step by step process and there's no need to act in a hurry to get bass traps and absorbers before all the data is available, analyzed and understood.
Hey guys - thanks for the info and for the record I did not know what a RT60 was at all when first mentioned haha, but after I've done some googling, I have a small degree of understanding. Not that I'm going to attempt to explain how it works or anything ..ha.
As far as the room acoustics I wasn't gung-go on getting room treatment asap and I know this isn't exactly the correct sub-forum for that - just thought I'd mention it as I heard from around the way that bass traps, room treatment, etc could improve room/sub performance so I thought I'd ask.
Anyhow, thank you all for your help and I hope everyone has a great day!