Your Home Theater ULF Score - Page 103 - AVS | Home Theater Discussions And Reviews
Forum Jump: 
 218Likes
Reply
Thread Tools
post #3061 of 3085 Old 03-26-2015, 10:50 AM
AVS Special Member
 
edgebsl's Avatar
 
Join Date: Aug 2003
Location: Gulfport MS
Posts: 1,567
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 290 Post(s)
Liked: 367
Quote:
Originally Posted by dominguez1 View Post
If the new RA 18in ends up being similar to SI performance, that's going to be one heck of a value!

The Gamma 218 certainly looks very attractive at 1699, but I would think the box size would limit getting full performance of those (in the ULF range).


Regardless, looks like some exciting new entries that could rock the 'sub' ship a little bit!

If the Gamma 218 were double the size of the Gamma 18 we would get 6db increase across the board. However, since the box is smaller, we do get ULF increase but not that much. We get more like 3-4 db in that range. Above 38hz or so, we do begin to see that full increase. It's a potent sub in both high and lower octaves. Mid-bass headroom is unreal.

This is all related to headroom of course. We match the responses by tweaking the DSP a bit.

Quote:
Originally Posted by basshead81 View Post
I honestly do not see the need for a PS18x at this point...I mean most will either get the gamma18 for a single driver sub which is significantly less then the PS18x or step up to the big dog Gamma218. No different then PSA dropping the 3000 really.
Time will tell and you may be right. But for those wanting the most out of a smaller box, the PS-18 is still the king as far as total output in relation to box size. We still get plenty of interest in it. And the dual price is attractive.

Ideally, I would rather keep most of our single subs options out of the over 2k shipped range. I think that upper range is very well covered by JTR and Seaton. We like being at a "bang for the buck" sweet spot so to speak.

Jeremy
Reaction Audio Subwoofers

edgebsl is online now  
Sponsored Links
Advertisement
 
post #3062 of 3085 Old 03-26-2015, 01:37 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
dominguez1 is online now  
post #3063 of 3085 Old 03-26-2015, 01:38 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
Here's my estimates for the new RA line. I think these are in the ballpark, but let me know of any tweaking necessary.

Attached Thumbnails
Click image for larger version

Name:	RA Echo-Gamma Subs.png
Views:	211
Size:	22.7 KB
ID:	628153  
dominguez1 is online now  
post #3064 of 3085 Old 03-26-2015, 01:47 PM
AVS Special Member
 
edgebsl's Avatar
 
Join Date: Aug 2003
Location: Gulfport MS
Posts: 1,567
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 290 Post(s)
Liked: 367
Quote:
Originally Posted by dominguez1 View Post
^^^Thanks Jeremy.

Congrats on the new subs...definitely look very promising!
Thank you!

I think you are pretty darn close - leaning towards the conservative side (We're mildly confident Ricci will clock the Echo 18 over 112 @ 20hz, 2m).

But conservative is good.
Frank D and JT78681 like this.

Jeremy
Reaction Audio Subwoofers

edgebsl is online now  
post #3065 of 3085 Old 03-26-2015, 03:06 PM
AVS Special Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 7,059
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 68 Post(s)
Liked: 2052
Dang 112db @ 20hz is Insane....approaching reference level capability 2m rms is sick!!! Especially for 1399.00!

Getting Started with REW: A Step by Step Guide --> http://www.mediafire.com/view/aolmz2..._101_v3.92.pdf

Mini DSP Tutorial by Neutro --> http://www.avsforum.com/forum/113-su...g-minidsp.html
basshead81 is offline  
post #3066 of 3085 Old 03-27-2015, 04:57 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
I downloaded several VM apps and think I found one that'll work. Not knowing the first thing about vibration meters I assume XYZ axis does the trick. This one seems sensitive enough. If this does work out then we will have a VM solution for iPhone users. No more guessing when it comes to tactile response, if it works out.

Last few days I've testing a few things out regarding tactile improvement. I forgot to mentioned that I have rubber isolators that replaced my seating feet. I'm sure this amplifies the tactile response as well. It made a difference before with the seats mounted on concrete. With the sound intensity and PVL being primarily responsible for tactile feedback, I wonder if it's of any benefit having the sub mounted on the riser.

One thing that would be of huge benefit is if we had a database/thread for tactile like what this thread has accomplished. Where a person could go and get the info and product data needed to get the needed or wanted response. Comparisons of passive and active risers/platforms and seating. Explore and find that perfect balance of spl to tactile, for example, at 115db@20hz is should 5.2vm or whatever the optimal number is and to achieved you have to do this and this. To me tactile is as important as having a sub.
coolrda is online now  
post #3067 of 3085 Old 03-28-2015, 03:21 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
Quote:
Originally Posted by coolrda View Post
I downloaded several VM apps and think I found one that'll work. Not knowing the first thing about vibration meters I assume XYZ axis does the trick. This one seems sensitive enough. If this does work out then we will have a VM solution for iPhone users. No more guessing when it comes to tactile response, if it works out.

Last few days I've testing a few things out regarding tactile improvement. I forgot to mentioned that I have rubber isolators that replaced my seating feet. I'm sure this amplifies the tactile response as well. It made a difference before with the seats mounted on concrete. With the sound intensity and PVL being primarily responsible for tactile feedback, I wonder if it's of any benefit having the sub mounted on the riser.

One thing that would be of huge benefit is if we had a database/thread for tactile like what this thread has accomplished. Where a person could go and get the info and product data needed to get the needed or wanted response. Comparisons of passive and active risers/platforms and seating. Explore and find that perfect balance of spl to tactile, for example, at 115db@20hz is should 5.2vm or whatever the optimal number is and to achieved you have to do this and this. To me tactile is as important as having a sub.
+1. I actually tried to start something like this a while back:

Measuring the 'Tactile Feeling' of your sub system

The only challenge to this is measuring in the vertical axis. In my room, when placed on my seats (horizontal axis), I get considerable shaking between 10 and 20hz, and not much after that. But what I can tell you is that I also get as much shaking above 20hz...but it's against my back (vertical axis) and not my seat cushions.

The other things that this cannot measure is that 'kick in the chest' feeling, which likely could only be measured via a Sound Intensity meter like the Microflown.

Were you ever able to test how much your riser shakes with your nearfield subs off?
dominguez1 is online now  
post #3068 of 3085 Old 03-28-2015, 05:45 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
Quote:
Originally Posted by dominguez1 View Post
+1. I actually tried to start something like this a while back:

Measuring the 'Tactile Feeling' of your sub system

The only challenge to this is measuring in the vertical axis. In my room, when placed on my seats (horizontal axis), I get considerable shaking between 10 and 20hz, and not much after that. But what I can tell you is that I also get as much shaking above 20hz...but it's against my back (vertical axis) and not my seat cushions.

The other things that this cannot measure is that 'kick in the chest' feeling, which likely could only be measured via a Sound Intensity meter like the Microflown.

Were you ever able to test how much your riser shakes with your nearfield subs off?
Not yet but will try that tonight or tomorrow.
coolrda is online now  
post #3069 of 3085 Old 03-28-2015, 10:48 PM
AVS Special Member
 
Frank D's Avatar
 
Join Date: Sep 2001
Location: Ontario, Canada
Posts: 1,399
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Liked: 32
Quote:
Originally Posted by dominguez1 View Post
Here's my estimates for the new RA line. I think these are in the ballpark, but let me know of any tweaking necessary.

Are you going to add these to your first post and excel sheet?

Thanks
Frank D is online now  
post #3070 of 3085 Old 03-29-2015, 02:07 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
V18.2 of the ULF Calculator now available

  • Added new PSA Subs (V1500, S1500, S3000i)
  • Added new RA Subs (Echo 15, Echo 18, Gamma 15, Gamma 18, Gamma 218)
  • New ULF Members @coolrda , @galonzo
  • Updated ULF Members @Ted Sheckler , @derrickdj1
  • Separated the Member ULF Score Data into its own spreadsheet on post 1 (ULF Calculator exceeded upload limits)


Member ULF Stars


Member ULF Scores


Member ULF SI Equivalents


Member Tactile Feedback FX
Attached Thumbnails
Click image for larger version

Name:	Member ULF Stars 3-29-15.jpg
Views:	129
Size:	253.5 KB
ID:	634121   Click image for larger version

Name:	Member ULF Scores 3-29-15.jpg
Views:	128
Size:	259.9 KB
ID:	634129   Click image for larger version

Name:	Member SI 3-29-15.jpg
Views:	128
Size:	255.8 KB
ID:	634137   Click image for larger version

Name:	Member TF FX 3-29-15.png
Views:	128
Size:	70.4 KB
ID:	634145  
coolrda likes this.

Last edited by dominguez1; 03-29-2015 at 02:19 PM.
dominguez1 is online now  
post #3071 of 3085 Old 03-29-2015, 02:18 PM
AVS Special Member
 
laugsbach's Avatar
 
Join Date: Jun 2007
Location: Cincinnati, Ohio
Posts: 2,767
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 92 Post(s)
Liked: 165
@dominguez1

"V18.2 of the ULF Calculator now available"

The link in the first post in not working for me...
laugsbach is offline  
post #3072 of 3085 Old 03-29-2015, 02:34 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
Quote:
Originally Posted by laugsbach View Post
@dominguez1

"V18.2 of the ULF Calculator now available"

The link in the first post in not working for me...
Should be fixed now!
laugsbach likes this.
dominguez1 is online now  
post #3073 of 3085 Old 03-29-2015, 09:13 PM
AVS Special Member
 
derrickdj1's Avatar
 
Join Date: Sep 2011
Posts: 1,892
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 229 Post(s)
Liked: 183
Just an FYI Dom, I had six shaker and now have 8 of the Aura Pro's in the large sectional seating.
derrickdj1 is offline  
post #3074 of 3085 Old 03-29-2015, 09:44 PM
AVS Special Member
 
popalock's Avatar
 
Join Date: Jul 2009
Location: Doha, Qatar
Posts: 4,306
Mentioned: 66 Post(s)
Tagged: 0 Thread(s)
Quoted: 855 Post(s)
Liked: 1146
Send a message via Skype™ to popalock
Quote:
Originally Posted by dominguez1 View Post
V18.2 of the ULF Calculator now available

  • Added new PSA Subs (V1500, S1500, S3000i)
  • Added new RA Subs (Echo 15, Echo 18, Gamma 15, Gamma 18, Gamma 218)
  • New ULF Members @coolrda, @galonzo
  • Updated ULF Members @Ted Sheckler, @derrickdj1
  • Separated the Member ULF Score Data into its own spreadsheet on post 1 (ULF Calculator exceeded upload limits)
Yes...still got it. #1 largest room on the list. Dominating all ya'll fools!!!!
coolrda likes this.
popalock is offline  
post #3075 of 3085 Old 03-29-2015, 11:30 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
I downloaded several vibration meter for IOS over the last few days and played around with them. The best of the bunch was one called VibSensor which seems to be a good match for tactile testing. I don't understand all the data yet but I can read a graph. For starters I made runs comparing front only rear only and all subs, taken from the MLP seat and riser floor. I kept levels low for now until I can become comfortable using it. For test material I looked through all my subwoofer test CD's and found a dvd I dl'd from SOHO54. Its a dolby digital test dvd with an LFE track. After spending an hour making test runs then several more reading about what the various data means I think this will be a big help. My sensor is a iPhone 6 plus. I removed the case for the test runs. The LFE tracks are at -20db and I ran the tests at -30db and -20db so the levels were pretty low. However even at the low levels the tests came out fine. Its extremely sensitive. Heres some pics.









coolrda is online now  
post #3076 of 3085 Old Yesterday, 12:08 AM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
The VibSensor takes run from 0.3-50hz. You can take runs from 10 seconds to 5 minutes. It uses three sensors, front to back(Y), top to bottom(Z) and side to side(X) and displays all axis separately and combined. Heres some screen shots of a few runs. I used the 60hz-1hz 30 sec sweep primarily.







Here the blue is the Z axis, the red Y and the green X. Theres been a lot posted about the different characteristics of tactile response, the pulse, the wobble, etc. I experience this playing the first minute or so of the latest Transformers, the extinction scene. The initial pulse followed by the rumble. Its one advantage that a sub has over transducers. Theres never been a good explanation that I've read of whats happening and why they feel different. Playing the 60-1hz sweep notice what happens.

X axis.


Y axis.


Z axis and combined.


Where the Z axis, Blue or top to bottom starts to dominate is about 40hz. Above 40z though the Y axis, red or front to back movement dominates which could be why it feels like a pulse wave as intended. The different characteristics could be frequency dependent.

So those of you with iPhones or iPads, download this and give it a try. The more input and data the better. Looks like I have some homework the next couple weeks. PSD?
dominguez1 likes this.
coolrda is online now  
post #3077 of 3085 Old Yesterday, 06:17 AM
Member
 
Rod2486's Avatar
 
Join Date: Sep 2011
Posts: 131
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Liked: 29
Quote:
Originally Posted by popalock View Post
Yes...still got it. #1 largest room on the list. Dominating all ya'll fools!!!!
Popalock, is you HT in a cave or something haha. That is a massive room!
Rod2486 is offline  
post #3078 of 3085 Old Yesterday, 08:58 AM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
Quote:
Originally Posted by popalock View Post
Yes...still got it. #1 largest room on the list. Dominating all ya'll fools!!!!
In the immortal words of Liza Minnelli from Authur, "Nice house. I love a living room you can land a plane in".
coolrda is online now  
post #3079 of 3085 Old Yesterday, 05:23 PM
AVS Special Member
 
Frank D's Avatar
 
Join Date: Sep 2001
Location: Ontario, Canada
Posts: 1,399
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Liked: 32
Please give me your comments on weather sealed is better then ported when considering ULF? By going ported dose one miss on ULF? What is your thoughts on what is being missed by going ported? Does it make a difference for you?

How many action/adventure movies have content below 15 hz?

What is your suggestion for my room?

I currently have:
-Sealed and dedicated HT room
-17.5 feet long x 11 feet wide x 7.5 feet high - so about 1400 sq feet
-I sit about 9 feet from my sub
-Currently i have a single sealed Velodyne HGS 15 inch and I believe its db's at 2 m are
10 hz.......... -
12.5 hz....... -
16 hz.......... 89.1
20 hz.......... 94.5

-I like to listen at reference level
-My HT room is acoustically treated. 4" absorbers on side walls and ceilings at first reflection points. Bass absorbers in several of the corners. Floor has carpet on it. My center channel is just below the screen.
-I use my HT for 100% movies
-I do appreciate good bass and like action/adventure movies
Frank D is online now  
post #3080 of 3085 Old Yesterday, 07:34 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
It's really a buyer's market when it comes to looking for a good sub. With all the commercial, Internet Direct and DIY options available the performance to cost ratio has never been higher. In the past the recommendation would have been sealed, sealed or sealed. But nowadays with tunable ported sub with on board dsp processing and mega wattage amps, its really a toss up. I think the consensus here is may be to go with two subs, one in each front corner. That will provide good coverage. Then add a third behind you in the nearfield in the future if your taste demand it. If your quest for subwoofage becomes insatiable, You can continue on from there. The current pinnacle of achievement in LF and ULF systems comes by way of the DIY sub systems and arrays that are listed here. The sky is the limit with these mega systems, plus they can be specifically adapted to the room.

You have plenty of data here to compare including size of rooms matching yours. Then establish your short term and long term budget and goals. Two subs should be the absolute minimum here. First goal should be to hit reference at 20hz. With your small room you should do well. Theres a ton of movies with ULF content however brief it may be. I think its a worthwhile pursuit as it adds a foundation, a heavy thick weighty presence to the presentation that once experienced is necessary.

Last edited by coolrda; Yesterday at 11:34 PM.
coolrda is online now  
post #3081 of 3085 Old Yesterday, 08:41 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
Great stuff, @coolrda . Have an understanding of this is incredibly meaningful IMO, but almost always overlooked. It's tough to have a precise measuring rig for this, but certainly exploring like you and others (@bassthathz) have done helps advancing our collective knowledge base. The trick (at least for me) is making it simple enough to interpret and use to make mainstream so that it's easy to build the overall database that we all can learn from (similar to what I hoped to achieve with the ULF calculator).

Quote:
Originally Posted by coolrda View Post
The VibSensor takes run from 0.3-50hz. You can take runs from 10 seconds to 5 minutes.
What do you mean "takes run from .3-50hz"? I can interpret sine waves in this range, but outside of this range it cannot?

If it's just measuring vibrations, why is there a tolerance from a certain frequency range? I guess that also leads to my question in your images below: I see the software references Hz...is that Hz generated by the motion of the phone, or is it somehow recognizing the sweeps your playing?

Just curious how you are interpreting that.

Quote:
Originally Posted by coolrda View Post
It uses three sensors, front to back(Y), top to bottom(Z) and side to side(X) and displays all axis separately and combined. Heres some screen shots of a few runs. I used the 60hz-1hz 30 sec sweep primarily.





My interpretation of this is that the most movement occurs on the Z axis (side to side). The fronts only recorded an rms value of .14 for Z. The rears recorded an rms value of .26 for Z. The combination recorded a value of .28 for Z for both.

So the combination of the fronts and the rears didn't significantly change the vibration of the rears?

Quote:
Originally Posted by coolrda View Post
Here the blue is the Z axis, the red Y and the green X. Theres been a lot posted about the different characteristics of tactile response, the pulse, the wobble, etc. I experience this playing the first minute or so of the latest Transformers, the extinction scene. The initial pulse followed by the rumble. Its one advantage that a sub has over transducers. Theres never been a good explanation that I've read of whats happening and why they feel different. Playing the 60-1hz sweep notice what happens.

X axis.


Y axis.


Z axis and combined.


Where the Z axis, Blue or top to bottom starts to dominate is about 40hz. Above 40z though the Y axis, red or front to back movement dominates which could be why it feels like a pulse wave as intended. The different characteristics could be frequency dependent.
I understand what you're trying to demonstrate here. Different frequencies shake the riser in different ways. But the 40hz frequency you referenced, is that in relation to the hz in your images, or is that just the frequency that was excited through your tones?
dominguez1 is online now  
post #3082 of 3085 Old Yesterday, 09:08 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
Quote:
Originally Posted by dominguez1 View Post
Great stuff, @coolrda . Have an understanding of this is incredibly meaningful IMO, but almost always overlooked. It's tough to have a precise measuring rig for this, but certainly exploring like you and others (@bassthathz) have done helps advancing our collective knowledge base. The trick (at least for me) is making it simple enough to interpret and use to make mainstream so that it's easy to build the overall database that we all can learn from (similar to what I hoped to achieve with the ULF calculator).



What do you mean "takes run from .3-50hz"? I can interpret sine waves in this range, but outside of this range it cannot?

If it's just measuring vibrations, why is there a tolerance from a certain frequency range? I guess that also leads to my question in your images below: I see the software references Hz...is that Hz generated by the motion of the phone, or is it somehow recognizing the sweeps your playing?

Just curious how you are interpreting that.


My interpretation of this is that the most movement occurs on the Z axis (side to side). The fronts only recorded an rms value of .14 for Z. The rears recorded an rms value of .26 for Z. The combination recorded a value of .28 for Z for both.

So the combination of the fronts and the rears didn't significantly change the vibration of the rears?



I understand what you're trying to demonstrate here. Different frequencies shake the riser in different ways. But the 40hz frequency you referenced, is that in relation to the hz in your images, or is that just the frequency that was excited through your tones?
Since this was a simple swept tone from 60-1hz I was just guessing as to the frequencies where the Y axis vibration dominated. The Power Spectral Density actually breaks it down better. I'll include the logarithmic PSD too.



coolrda is online now  
post #3083 of 3085 Old Yesterday, 09:36 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
A run is a test with variable time lapse from 10 secs to 5 mins max. It only will measure frequencies for basically 0.3hz to 50z and it samples at 100hz hence the smoother lines as frequency lowers. Heres the axis pic. I lay the phone on its back so z axis is up and down.





I wish I could answer your questions but just started using this app so I'm trying to get a grasp. Heres the user guide for explanation. If anyone can explain it in laymen's it would be appreciated.







coolrda is online now  
post #3084 of 3085 Old Yesterday, 10:04 PM
AVS Special Member
 
coolrda's Avatar
 
Join Date: Nov 2002
Location: Bakersfield, CA
Posts: 1,227
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 75
The goal is to gather data, interpret and share. The points I believe equal data rates. Its able to take these samples and accurately track frequencies. Its extremely sensitive. Playing with various sweeps and single tones it appears dead on to frequency and intensity. For instance check out this test run. It accurately nailed the freqs. This is a 60 sec run with 10 sec single tone waves starting at 11hz.






Heres the PSD breakdown at 1X, 2X and 5X resolution.




The reason for the change in Y and Z axis is I stood the phone up. I won't do that again as its not needed. The iPhone 6+ appears to have a scientific grade accelerometer. This should be fun.
coolrda is online now  
post #3085 of 3085 Unread Yesterday, 11:23 PM - Thread Starter
AVS Special Member
 
dominguez1's Avatar
 
Join Date: Dec 2008
Posts: 2,037
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 226 Post(s)
Liked: 248
That's freakin' impressive...wow.

The question is...is your floating riser just very accurate, or the phone?
dominguez1 is online now  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Tags
ae ib15 subwoofer , Bic Pl 200 Acoustech Platinum Series Subwoofer , Bowers Wilkins Asw 610 , Danley Sound Labs Dts 10 , Elemental Designs A7s 450 , Epik Empire , Fv15hp Subwoofer , Hsu Vtf 15h Subwoofer , Klipsch Sw 311 , Seaton Sound Submersive H P , Svs Pb12 Nsd Black Vinyl 12 Inch Powered Subwoofer , Svs Sb13 Ultra Piano Gloss 13 Inch 1000 Watt Powered Subwoofer , Velodyne Eq Max 15 15 Subwoofer

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