Post your listening position FR
Old 25th March 2013
  #1
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Post your listening position FR

I just want to see what other folks look like at the listening position. For continuity, lets make them all with 1/24th octave smoothing, both channels (preferably red for right, black for left, but this isnt mandatory as long as they are both there), 20-20k

Listening rooms and studio responses welcome

I am omitting mine for the time being as to not have any one graph taken as some kind of reference. Bad or good, I just want see what others are getting. If you want to include your room size or other room data, that might give added context.

What I want to do here is build up a mini database with Frequency Response graphs and rooms sizes so people wondering about their own plots have something to go by.
Old 25th March 2013
  #2
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Just FR? Fair enough.

This is my room, still being treated. Measures 10.6 W x 19.2 L x 7.6 ft H. Speakers around 180mm off the front wall, monitoring position approx. 7ft out. 85db, calibrated ecm8000,no smoothing. One speaker only. So this is violating the OP's set criteria, but hey, I kicked it off for you didnt I?
Post your listening position FR-lowend2.jpg

treatment so far is two front corner traps, 7 inchs of 32kg/m3 rockwool.
Screened off false rear wall full of 15 inchs of fluffy.
Ceiling joists filled with 6 inchs of pink fluffy.

Still to add first reflection point treatment and front wall behind the speakers, as well as few other traps.
Old 25th March 2013
  #3
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Quote:
Originally Posted by dodittydada View Post
Just FR? Fair enough.

This is my room, still being treated. Measures 10.6 W x 19.2 L x 7.6 ft H.
Attachment 336829

treatment so far is two front corner traps, 7 inchs of 32kg/m3 rockwool.
Screened off false rear wall full of 15 inchs of fluffy.
Ceiling joists filled with 6 inchs of pink fluffy.

Still to add first reflection point treatment and front wall behind the speakers, as well as few other traps.
Got them from 20-20k (I just added that request) ?

Just for clarity, I am focusing just on FR cause its fairly uncontroversial to whats good and not. While ETC and Waterfalls are more telling, I know what kind of debates will start if we go there and comparisons become kind of meaningless since design aims can very considerably.
Old 25th March 2013
  #4
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not on me, Ill get back to you on that. I think though that while its interesting and relevant, the low end is the critical and most difficult part of getting rooms right. Ill get em here when at home.

Great thread, Im very interested to see all repsonses.
Old 25th March 2013
  #5
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Quote:
Originally Posted by dodittydada View Post
not on me, Ill get back to you on that. I think though that while its interesting and relevant, the low end is the critical and most difficult part of getting rooms right.
I agree the low end is harder, but part of what I want to see is the levels of mids and highs compared to the lows. The overall tone of the room so to speak.
Old 25th March 2013
  #6
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Sure, Like I said, great thread, I hope its a long one. For some reason there hasnt been a sticky for something like this, that I know of. Seems not as many people like to post their results once they have got their advice here and trotted off and built traps and what not for their rooms.
Old 25th March 2013
  #7
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Quote:
Originally Posted by dodittydada View Post
Sure, Like I said, great thread, I hope its a long one. For some reason there hasnt been a sticky for something like this, that I know of. Seems not as many people like to post their results once they have got their advice here and trotted off and built traps and what not for their rooms.
That, or they aren't that pleased with their final result. One of the myths I intend to dispel is that most get +/-3db from 20-20k @ 1/24th oct smoothing. NOT. I think many are misled to feel +/-5db or +/-7db or even +/-10db is terrible. They arent.
Old 26th March 2013
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Originally Posted by jim1961 View Post
I think many are misled to feel +/-5db or +/-7db or even +/-10db is terrible. They arent.
I've seen some weird FR data for rooms that actually sound great. Then again, their ETC and waterfalls were good, so it's that synergy.
Old 26th March 2013
  #9
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Originally Posted by Syncamorea View Post
I've seen some weird FR data for rooms that actually sound great. Then again, their ETC and waterfalls were good, so it's that synergy.
I am not claiming FR determines how good a room sounds. Still, its a piece of data that nearly everyone uses and the one more people are familiar with than any other. Its has its place and it tells its part of the story.
Old 26th March 2013
  #10
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Sure, I'll post ours, we are very proud of it, so..... its a bad resolution pic but the horizontal lines are 2dB each.

Old 26th March 2013
  #11
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Quote:
Originally Posted by jim1961 View Post
That, or they aren't that pleased with their final result. One of the myths I intend to dispel is that most get +/-3db from 20-20k @ 1/24th oct smoothing. NOT. I think many are misled to feel +/-5db or +/-7db or even +/-10db is terrible. They arent.

For the most part it is a myth as it really depends on the set up of the speakers and the room itself. It really is about where you start which determines where you end.
I will see what I can dip up from this test we just did.
Acoustically Treated vs Non-treated Room - GIK Acoustics
Old 26th March 2013
  #12
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Quote:
Originally Posted by Demor View Post
Sure, I'll post ours, we are very proud of it, so..... its a bad resolution pic but the horizontal lines are 2dB each.

Can you post the entire 20-20k plot?
Old 26th March 2013
  #13
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Quote:
Originally Posted by jim1961 View Post
Can you post the entire 20-20k plot?
Not right now but I can dig up other plot from GS for you like.....





Old 26th March 2013
  #14
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Id really like to keep the graphs here to FR ones. Those other plots are nice, but they belong in a different thread.

Thanks.
Old 26th March 2013
  #15
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Ok, I understand but I didn't have any at hand right now and the ones posted here are the ones everybody keeps asking about. When I am in the studio tomorrow I will ask if its allowed to post another complete graph. I'll guess it will be OK.
Old 27th March 2013
  #16
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Here is where I'm at, mic pointed up.
Attached Thumbnails
Post your listening position FR-screen-shot-2013-03-26-7.05.54-pm.jpg  
Old 29th March 2013
  #17
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OK, here you go it is 1/24 smoothed



And to get a feel of how the room rolls off, a 1/3 smoothed graph

Old 30th March 2013
  #18
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Post your listening position FR-03-30-fr-both.jpg

Red = Right
Black = Left

1/24th oct smoothing
Old 20th April 2013
  #19
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Second round of treatment done tonight. Only one speaker so far as I am fine tuning speaker positioning. How am I doing?

1/24 smoothing, calibrated ecm8000 at 85db.

Post your listening position FR-rewmeasuremet.jpg
Old 20th April 2013
  #20
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Quote:
Originally Posted by dodittydada View Post
Second round of treatment done tonight. Only one speaker so far as I am fine tuning speaker positioning. How am I doing?

1/24 smoothing, calibrated ecm8000 at 85db.

Attachment 341084
Pretty nice graph

This is more about taste than some absolute right or wrong, but if that were my graph, its seems a bit lean in the bass. Another 4-6db below 200hz I think would be helpful.
Old 20th April 2013
  #21
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Yeah Interesting Jim, I expected more bass especially seeing the monitors are almost touching the front wall in the current position. I was surprised. It significantly measures better overall in this position, so I think I have to make a trade off and accept it. I havent listened yet until I get done with tuning, hopefully it sounds ok and full enough!
Old 22nd April 2013
  #22
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Ok I listened, lol, no bass. I have very extensive bass trapping, am aware of reflections SBIR and the like, this lack of low end dosent look like anything to do with any of that. It looks like a 10db roll off below 200 hz!! Below that. THEN you see the typical dips and whatnot associated with the things I mentioned above. So what the hell can cause the low end to drop off like that below 200. The speakers are by far in the best position in the room,no other positon fixes it, even at the expense of some other part of the spectrum. I don't get it.
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