Simplified REW Setup and Use (USB Mic & HDMI Connection) Including Measurement Techniques and How To Interpret Graphs - Page 673 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 2195Likes
Reply
 
Thread Tools
post #20161 of 23335 Old 08-22-2016, 08:58 PM
AVS Forum Special Member
 
JimWilson's Avatar
 
Join Date: Oct 2010
Location: Somewhere in New Joisey
Posts: 6,971
Mentioned: 52 Post(s)
Tagged: 0 Thread(s)
Quoted: 1471 Post(s)
Liked: 1936
Quote:
Originally Posted by citsur86 View Post
Still losing the fight with this room...
That's akin to having a 'discussion' with your wife; you're toast, seemingly no matter what you do.

Just out of curiosity, what is the crossover set at for the center? It's possible one of those dips is due to a phase interaction in that region.

If you take yourself too seriously, expect me to do the exact opposite
JimWilson is online now  
Sponsored Links
Advertisement
 
post #20162 of 23335 Old 08-22-2016, 09:01 PM
Bass and Hi-Fi Enthusiast
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: Southern NJ
Posts: 2,395
Mentioned: 41 Post(s)
Tagged: 1 Thread(s)
Quoted: 1434 Post(s)
Liked: 598
Didn't pass the sniff test with the few key clips I try after each EQ. So, I decided NOT to call it a night and instead move it once more to the nearfield spot where I got a decent response earlier, and turn it to the side how I achieved said response. Like this:



Applied the following filters:



And got the following response. Besides the dip at 30Hz that doesn't want to leave, its not bad.



Gonna listen to it for a few now.
ndabunka likes this.
citsur86 is online now  
post #20163 of 23335 Old 08-22-2016, 09:03 PM
Bass and Hi-Fi Enthusiast
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: Southern NJ
Posts: 2,395
Mentioned: 41 Post(s)
Tagged: 1 Thread(s)
Quoted: 1434 Post(s)
Liked: 598
Quote:
Originally Posted by JimWilson View Post
That's akin to having a 'discussion' with your wife; you're toast, seemingly no matter what you do.

Just out of curiosity, what is the crossover set at for the center? It's possible one of those dips is due to a phase interaction in that region.
Crossover is set to 80hz, i think the big dip could be from that, but I did try the distance tweek and it made it worse going farther or closer. Check out my last post - got a decent response there.
citsur86 is online now  
 
post #20164 of 23335 Old 08-22-2016, 09:13 PM
AVS Forum Special Member
 
Marc Alexander's Avatar
 
Join Date: Aug 2001
Location: Inland Empire, CA
Posts: 9,278
Mentioned: 78 Post(s)
Tagged: 0 Thread(s)
Quoted: 2308 Post(s)
Liked: 2123
You are experience the challenges of dialing in a single sub. A single LARGE sub. You may have to throw your/Enrico's LV12 back into the mix if you want near perfection.

My advice is that microphone positioning can be very sensitive. Move the mic 6" in each direction at the MLP. Test the other LPs. You might find that you actually have a good position for that single sub. I have duals and I still couldn't achieve perfection without obstructing a door/walkway. I ended up adding MBMs, so essentially 4 subs for a response free of nulls.
Marc Alexander is online now  
post #20165 of 23335 Old 08-22-2016, 09:18 PM
Bass and Hi-Fi Enthusiast
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: Southern NJ
Posts: 2,395
Mentioned: 41 Post(s)
Tagged: 1 Thread(s)
Quoted: 1434 Post(s)
Liked: 598
Quote:
Originally Posted by Marc Alexander View Post
You are experience the challenges of dialing in a single sub. A single LARGE sub. You may have to throw your/Enrico's LV12 back into the mix if you want near perfection.

My advice is that microphone positioning can be very sensitive. Move the mic 6" in each direction at the MLP. Test the other LPs. You might find that you actually have a good position for that single sub. I have duals and I still couldn't achieve perfection without obstructing a door/walkway. I ended up adding MBMs, so essentially 4 subs for a response free of nulls.

I'm betting the LV12R would help, but keeping it just isn't an option. My wife is already stretching her comfort zone for me to get the FV15HP. She doesn't love spending.

The response before was similar and still is even 2 feet away into the secondary listening position. The latest response i just posted seems to be giving me amazing results based on a few short clips I just listened to. Can't do much more tonight since the family is asleep, but I think I may have gotten it right just how it is.
citsur86 is online now  
post #20166 of 23335 Old 08-23-2016, 05:48 AM
Member
 
ronin22's Avatar
 
Join Date: May 2005
Posts: 158
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked: 13
Quote:
Originally Posted by AustinJerry View Post
Have you read the guide linked in my sig. Page 104 has the procedure for checking levels.
Thanks, was looking for that section.

I think my question centers around the scale used in my AVR though. Because reference level should be at zero and I don't know how it is on other AVRs but my master volume scale goes past zero (-80 to +12) so I guess I'm confused as to if reference on my scale is "0" or +12. I'm under the impression other AVRs go from a negative number to a zero then stop

I find it also odd the the other scale used (0-98) stops at 98, I guess it's not a one for one relationship plus why not stop at 92 like the other scale option
ronin22 is online now  
post #20167 of 23335 Old 08-23-2016, 06:25 AM
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 16,029
Mentioned: 201 Post(s)
Tagged: 1 Thread(s)
Quoted: 7411 Post(s)
Liked: 4120
Quote:
Originally Posted by ronin22 View Post
Thanks, was looking for that section.

I think my question centers around the scale used in my AVR though. Because reference level should be at zero and I don't know how it is on other AVRs but my master volume scale goes past zero (-80 to +12) so I guess I'm confused as to if reference on my scale is "0" or +12. I'm under the impression other AVRs go from a negative number to a zero then stop

I find it also odd the the other scale used (0-98) stops at 98, I guess it's not a one for one relationship plus why not stop at 92 like the other scale option
According to the section in the Guide that you should have read, setting the master volume to zero (using the -80 to +12 scale), you should be getting a 75dB level reading at the MLP. I will assume that you have run room correction and the speaker levels are set properly (room correction usually does a pretty good job of correctly setting levels). What this tells you is that MV=0 is Reference.

If you want to know what reading using the alternate scale (0-98) is Reference, simply adjust MV until the level at the MLP is 75dB.

I am only familiar with the Master Volume range on D&M equipment (I have a Marantz), so cannot comment on your claim that other manufacturers' equipment behave differently.
AustinJerry is online now  
post #20168 of 23335 Old 08-23-2016, 08:13 AM
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 16,029
Mentioned: 201 Post(s)
Tagged: 1 Thread(s)
Quoted: 7411 Post(s)
Liked: 4120
Quote:
Originally Posted by citsur86 View Post
Deleted - I also am not a fan of misinformation - especially when it comes from me.
I did as well. No harm done, and thanks.
AustinJerry is online now  
post #20169 of 23335 Old 08-23-2016, 08:45 AM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 4,736
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 580 Post(s)
Liked: 906
Quote:
Originally Posted by EndersShadow View Post
So I was able to go in and select the UMIK-1 mic. It was not initially listed as "active" so I couldnt select it.

I got some measurements. I am posting my initial measurement and what I ended up with....

Here is my initial measurement after setting the mains to 80hz instead of full range



I moved the sub location to 16 feet from 14 feet and took another measurements. Smaller but much deeper dip @60hz, and another appears around 90hz, but between 100hz and 200hz it seems to get a bit better....



I went the other way foot by foot and got this measurement which was the best one with regards to the 60hz dip. Anything else and it started to get really wonky around the crossover point, in addition to the 100 - 200 range.



I should mention I am working toward getting a second sub up and running which should hopefully help my room modes, which I am fairly certain the 60hz dip is. I moved the mic forward a few feet to a different location and the dip moved higher up, but was the same dimensions...
Anybody have some thoughts on my measurements? Am I missing some super tweak to fix some of these issues? Am I looking at room modes I cant fix, etc....

My Setup | FS: Nothing right now

Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #20170 of 23335 Old 08-23-2016, 09:41 AM
Member
 
ronin22's Avatar
 
Join Date: May 2005
Posts: 158
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked: 13
Quote:
Originally Posted by AustinJerry View Post
According to the section in the Guide that you should have read, setting the master volume to zero (using the -80 to +12 scale), you should be getting a 75dB level reading at the MLP. I will assume that you have run room correction and the speaker levels are set properly (room correction usually does a pretty good job of correctly setting levels). What this tells you is that MV=0 is Reference.

If you want to know what reading using the alternate scale (0-98) is Reference, simply adjust MV until the level at the MLP is 75dB.

I am only familiar with the Master Volume range on D&M equipment (I have a Marantz), so cannot comment on your claim that other manufacturers' equipment behave differently.

Thanks. I did read the guide but I think I'm still off. I used my center channel to try to do this the process went something like this.

Set center level trim to 0
Set signal generator in REW to -30
Turned on the REW spl
Played the pink noise
Turned MV up to 0 (using -80,to 12 scale)
Signal coming out of the center channel read between 82-83db at 0 MV
I have the umik sens factor in file in

The MV volume number where the REW spl reaches 75db is -8

I'm not trying to be a PITA just trying to understand. Many thanks
ronin22 is online now  
post #20171 of 23335 Old 08-23-2016, 10:06 AM
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 16,029
Mentioned: 201 Post(s)
Tagged: 1 Thread(s)
Quoted: 7411 Post(s)
Liked: 4120
Quote:
Originally Posted by ronin22 View Post
Thanks. I did read the guide but I think I'm still off. I used my center channel to try to do this the process went something like this.

Set center level trim to 0
Set signal generator in REW to -30
Turned on the REW spl
Played the pink noise
Turned MV up to 0 (using -80,to 12 scale)
Signal coming out of the center channel read between 82-83db at 0 MV
I have the umik sens factor in file in

The MV volume number where the REW spl reaches 75db is -8

I'm not trying to be a PITA just trying to understand. Many thanks
The missing piece of information here is whether you use room correction or not (and if yes, what type of RC). Assuming you have run room correction, each of your main speakers would likely have a trim value as a result of the calibration. Your mistake is that you changed the center channel trim to zero. You should have left it at the trim setting established by room correction.

So, for example, if the original center channel trim were between -7 and -8, then a 0 MV setting would have produced a -75dB level at the MLP.
AustinJerry is online now  
post #20172 of 23335 Old 08-23-2016, 10:07 AM
** Man of Leisure **
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 16,029
Mentioned: 201 Post(s)
Tagged: 1 Thread(s)
Quoted: 7411 Post(s)
Liked: 4120
Quote:
Originally Posted by EndersShadow View Post
Anybody have some thoughts on my measurements? Am I missing some super tweak to fix some of these issues? Am I looking at room modes I cant fix, etc....
Only two comments: congratulations on getting the mic to work properly, and the third measurement looks like the best result.
AustinJerry is online now  
post #20173 of 23335 Old 08-23-2016, 10:23 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Quote:
Originally Posted by PlasmaPZ80U View Post
What would such a house curve look like?
It would look like what he has now (and is [finally] happy with), post 20162, just with a flatter line from the peak at 25 to the peak at 12. That won't affect music much and will give him more "thump" for HT.
And, of course, it would have to be lowered if it was too much at that level. Can't tell that from a graph.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20174 of 23335 Old 08-23-2016, 10:27 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Quote:
Originally Posted by LastButNotLeast View Post
It would look like what he has now (and is [finally] happy with), post 20162
Speaking of which, I would try lowering the target curve to 90dB. That would make everything smoother and reduce the dip at 30.
Might then need to raise the volume, either on the sub or the avr, depending on where the center/mains end up.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20175 of 23335 Old 08-23-2016, 10:41 AM
Member
 
ronin22's Avatar
 
Join Date: May 2005
Posts: 158
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked: 13
Quote:
Originally Posted by AustinJerry View Post
The missing piece of information here is whether you use room correction or not (and if yes, what type of RC). Assuming you have run room correction, each of your main speakers would likely have a trim value as a result of the calibration. Your mistake is that you changed the center channel trim to zero. You should have left it at the trim setting established by room correction.

So, for example, if the original center channel trim were between -7 and -8, then a 0 MV setting would have produced a -75dB level at the MLP.
I'm using audessy xt32 but the original trim was only -1 for the center.

I gave the other scale a shot (0-98) using the same parameters as before and with the master volume at 75 the REW spl read about 77db but using the Marantz test tone with the master volume set at 75 the REW spl meter read 75db. Pretty interesting.
ronin22 is online now  
post #20176 of 23335 Old 08-23-2016, 10:43 AM
Bass and Hi-Fi Enthusiast
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: Southern NJ
Posts: 2,395
Mentioned: 41 Post(s)
Tagged: 1 Thread(s)
Quoted: 1434 Post(s)
Liked: 598
Quote:
Originally Posted by LastButNotLeast View Post
It would look like what he has now (and is [finally] happy with), post 20162, just with a flatter line from the peak at 25 to the peak at 12. That won't affect music much and will give him more "thump" for HT.
And, of course, it would have to be lowered if it was too much at that level. Can't tell that from a graph.
Michael
Quote:
Originally Posted by LastButNotLeast View Post
Speaking of which, I would try lowering the target curve to 90dB. That would make everything smoother and reduce the dip at 30.
Might then need to raise the volume, either on the sub or the avr, depending on where the center/mains end up.
Michael
First off, I love how you put finally, lol. Tired of my incessant posts?

It DEFINITELY has a thump now, and that is what I love. The reason the graph looks like this is because I have it running 6db hot in this FR.



The peaks at 12 and 25 are only seperated by a minor ~5-6db dip. I tried to lower The dip at 30 doesn't go away if i lower the target line, it just goes lower itself. I tried to add a little 3db gain boost and the sub made a very nasty noise - so I got rid of it. It sounded really good in the few clips i was able to watch last night. I plan to try a whole bunch more tonight. Will let you all know how it sounds after that. If it's TOO much, I can always take the sub down a few db.
citsur86 is online now  
post #20177 of 23335 Old 08-23-2016, 10:47 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Quote:
Originally Posted by citsur86 View Post
First off, I love how you put finally, lol. Tired of my incessant posts?
It DEFINITELY has a thump now, and that is what I love.
No, just thrilled that you are [finally] getting close to what you want.

Congrats, and enjoy.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20178 of 23335 Old 08-23-2016, 11:00 AM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 4,736
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 580 Post(s)
Liked: 906
Quote:
Originally Posted by AustinJerry View Post
Only two comments: congratulations on getting the mic to work properly, and the third measurement looks like the best result.
Thanks. Now that I know what I was doing wrong (all the many many things), I feel better about my abilities. However given I am EXTREMELY time limited, I'm debating sucking it up and paying a pro to come and take a look at my setup and hopefully help me dial it in and run XT32 and tweak it.

At the same time I'd have them ISF calibrate my Plasma.

I'd prefer to get rid of that funkiness between 100-200hz if at all possible.

My Setup | FS: Nothing right now

Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #20179 of 23335 Old 08-23-2016, 11:03 AM
AVS Forum Special Member
 
torii's Avatar
 
Join Date: Mar 2015
Posts: 2,714
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 1264 Post(s)
Liked: 647
paying someone $100/hr or more to do some of these calibrations is worth it to some. Let your ears/eyes save your wallet imo.

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5 Subs: Rythmik FV25HP, Rythmik FV15HP
torii is online now  
post #20180 of 23335 Old 08-23-2016, 11:19 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Quote:
Originally Posted by EndersShadow View Post
However given I am EXTREMELY time limited, I'm debating sucking it up and paying a pro to come and take a look at my setup and hopefully help me dial it in and run XT32 and tweak it.
It's either a hobby or it isn't. Only you can be the judge.
One of the many advantages of learning how to do it yourself is that, when you change any part of your system, you can recalibrate it without calling in (and paying for) the pros again.
If it's "not bad" now, it may not be worth it to have a pro get it better. Just take your time and do it in stages.
No one here is coming over to grade you.
Until next week.

Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20181 of 23335 Old 08-23-2016, 11:32 AM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 4,736
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 580 Post(s)
Liked: 906
Quote:
Originally Posted by torii View Post
paying someone $100/hr or more to do some of these calibrations is worth it to some. Let your ears/eyes save your wallet imo.
I got a quote and it would be 90 bucks for calibration and another 90 for the ISF calibration. I haven't scheduled anything but I wanted to know what I'd be looking at price wise.

Sometimes its just easier to let a pro do it, and also help tweak the layout as they "should" have seen more setups than me so should be able to dial it in a bit quicker than I can.

My Setup | FS: Nothing right now

Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #20182 of 23335 Old 08-23-2016, 11:37 AM
AVS Forum Special Member
 
torii's Avatar
 
Join Date: Mar 2015
Posts: 2,714
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 1264 Post(s)
Liked: 647
I been there and done that. Hope you find it worth the time/money.

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5 Subs: Rythmik FV25HP, Rythmik FV15HP
torii is online now  
post #20183 of 23335 Old 08-23-2016, 11:37 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
"Should" is indeed the operative word here.
It depends on the "pro."
Check references.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20184 of 23335 Old 08-23-2016, 11:40 AM
AVS Forum Special Member
 
Marc Alexander's Avatar
 
Join Date: Aug 2001
Location: Inland Empire, CA
Posts: 9,278
Mentioned: 78 Post(s)
Tagged: 0 Thread(s)
Quoted: 2308 Post(s)
Liked: 2123
Quote:
Originally Posted by EndersShadow View Post
I got a quote and it would be 90 bucks for calibration and another 90 for the ISF calibration. I haven't scheduled anything but I wanted to know what I'd be looking at price wise.

Sometimes its just easier to let a pro do it, and also help tweak the layout as they "should" have seen more setups than me so should be able to dial it in a bit quicker than I can.
That's great pricing, especially for the ISF calibration.
Marc Alexander is online now  
post #20185 of 23335 Old 08-23-2016, 11:45 AM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 4,736
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 580 Post(s)
Liked: 906
Quote:
Originally Posted by torii View Post
I been there and done that. Hope you find it worth the time/money.
Quote:
Originally Posted by LastButNotLeast View Post
"Should" is indeed the operative word here.
It depends on the "pro."
Check references.
Michael
Well they designed my buddies HT setup from the ground up and installed everything and I was very impressed both by the quality and also the pricing they gave him on some of the items (Sunfire TGA amps/Klipsh TOLT speakers, etc). So I trust em.

Quote:
Originally Posted by Marc Alexander View Post
That's great pricing, especially for the ISF calibration.
Yeah thats kinda what I thought.

My Setup | FS: Nothing right now

Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #20186 of 23335 Old 08-23-2016, 12:52 PM
Member
 
GuidingGod's Avatar
 
Join Date: Jan 2011
Posts: 146
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Liked: 38
Hey guys. I avoided going down the measurements rabbit hole for my own system because I was happy with the sound. Recently been helping a close friend set up his audio system and as fate would have it, we've unfortunately discovered a UMIK-1 and REW.

Room: 17ft x 14 ft x 10ft (hard marble floor, rug in front part of room but not fully carpeted, regular furniture around the place)
AVR: Yamaha 679 with YPAO RSC
Speakers: Monitor Audio Bronze 5 fronts, Bronze Centre, Paradigm Sub

No YPAO eq, disconnected sub for speaker sweeps then disconnected speakers for sub sweep

Only thing we did before is to use the RTA feature to locate a good place for the sub, which turned out to be midway to the left side of the room about 3 feet from the wall...placing it anywhere else meant a huge 25db dip between 32hz and 52hz and the like.

Graph settings: 1/6 smoothing for speakers and sub on unified graph, no smoothing on sub only graph

Should the next step be taking readings with YPAO on, speakers set to small and crossover to 80hz? the sub is movable for positioning but the big dip after about 70hz on the right speaker seems daunting - how can that be dealt with via positioning since it's the only place in the room where they can be placed?

(If I haven't made it obvious enough, I'm new to all this :-s)
GuidingGod is offline  
post #20187 of 23335 Old 08-23-2016, 01:07 PM
AVS Forum Addicted Member
 
PlasmaPZ80U's Avatar
 
Join Date: Feb 2009
Posts: 11,094
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 2194 Post(s)
Liked: 659
Quote:
Originally Posted by LastButNotLeast View Post
It would look like what he has now (and is [finally] happy with), post 20162, just with a flatter line from the peak at 25 to the peak at 12. That won't affect music much and will give him more "thump" for HT.
And, of course, it would have to be lowered if it was too much at that level. Can't tell that from a graph.
Michael
Quote:
Originally Posted by citsur86 View Post
First off, I love how you put finally, lol. Tired of my incessant posts?

It DEFINITELY has a thump now, and that is what I love. The reason the graph looks like this is because I have it running 6db hot in this FR.



The peaks at 12 and 25 are only seperated by a minor ~5-6db dip. I tried to lower The dip at 30 doesn't go away if i lower the target line, it just goes lower itself. I tried to add a little 3db gain boost and the sub made a very nasty noise - so I got rid of it. It sounded really good in the few clips i was able to watch last night. I plan to try a whole bunch more tonight. Will let you all know how it sounds after that. If it's TOO much, I can always take the sub down a few db.
So, in my case, if I want similar results, would I do this?



(Or should I shelve it at 30Hz, so 20Hz-30Hz is flat and higher than >30Hz?)

Current Setup REW FR measures

UN46EH6030 Calibration/Settings

Samsung UN46EH6030; Yamaha HTR-3066, SVS Prime Bookshelf Mains and Prime Center, Sony SS-CS5 Surrounds, Cambridge S20 Rear Surrounds, Rythmik LV12R; PS4 Slim, Xbox One, Xfinity X1
PlasmaPZ80U is offline  
post #20188 of 23335 Old 08-23-2016, 01:11 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Follow Jerry's guide. The front right will probably improve with sub on, so we need left/sub, right/sub, center/sub. What xo options are available with your AVR?
Don't use YPAO just yet.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20189 of 23335 Old 08-23-2016, 01:15 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 8,205
Mentioned: 34 Post(s)
Tagged: 1 Thread(s)
Quoted: 1732 Post(s)
Liked: 1338
Quote:
Originally Posted by PlasmaPZ80U View Post
(Or should I shelve it at 30Hz, so 20Hz-30Hz is flat and higher than >30Hz?)
I have found, with my setup, that not shelving causes a "boominess" that I don't like, but your system and preferences will be different.
That's why it's called a "house curve," it's your house, so give it a try and see what you think.
Michael

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
Don't guess, measure: Getting Started With REW: A Step-by-Step Guide
LastButNotLeast is offline  
post #20190 of 23335 Old 08-23-2016, 01:27 PM
AVS Forum Addicted Member
 
PlasmaPZ80U's Avatar
 
Join Date: Feb 2009
Posts: 11,094
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 2194 Post(s)
Liked: 659
Quote:
Originally Posted by LastButNotLeast View Post
I have found, with my setup, that not shelving causes a "boominess" that I don't like, but your system and preferences will be different.
That's why it's called a "house curve," it's your house, so give it a try and see what you think.
Michael
do you think this is worth a try over the one posted above?



It goes up about a dB each 10Hz increment from 60Hz->50Hz, 50Hz to 40Hz, 40Hz->30Hz.

Current Setup REW FR measures

UN46EH6030 Calibration/Settings

Samsung UN46EH6030; Yamaha HTR-3066, SVS Prime Bookshelf Mains and Prime Center, Sony SS-CS5 Surrounds, Cambridge S20 Rear Surrounds, Rythmik LV12R; PS4 Slim, Xbox One, Xfinity X1
PlasmaPZ80U is offline  
Sponsored Links
Advertisement
 
Reply Audio Theory, Setup, and Chat

Tags
Dayton , Dayton Audio , Room Equilizer Wizard Rew

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off