yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] devadvance:
I received my Galaxy Nexus today, and after getting used to the new interface, I decided to sit down with my colorimeter and perform some actual measurements on the screen for reference. This should answer many of the "How bright is the screen?" or "How good is the screen?" types of questions that I have seen here on the forum.

Update: I added a test of the Captivate where I reset the RGB multipliers and gamma to defaults. The results have been added.

++++++++++++++++++++++++++++++

Quick Brightness Section (for those who don't want to read):

>>>>> NOTE: 1 cd/m^2 is EQUAL TO 1 nit <<<<<

Brightness:

Galaxy Nexus - Voodoo Grayscale IRE 100 (White) - 235 cd/m^2

iPhone 3G w/ screen protector - Browser background (white?) - 352 cd/m^2

AT&T Galaxy S II - Voodoo Grayscale IRE 100 (White) - 336 cd/m^2

AT&T Captivate - Voodoo Grayscale IRE 100 (White) - 670 cd/m^2

AT&T Captivate (Reset to near-stock RGB/gamma) - Voodoo Grayscale IRE 100 (White) - 361 cd/m^2

The Galaxy Nexus is the dimmest.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Phones Tested:

> Galaxy Nexus (16GB, international retail, imported via Handtec)

-Stock, no root or fastboot, completely unmodified

> iPhone 3G (screen protector on)

> AT&T Galaxy S II (1 month old)

-Stock, no root, completely unmodified

> AT&T Captivate

-CM7 Nightly #179, Glitch Kernel v13, Voodoo Color App with all sliders set to max for color

> AT&T Captivate (same hardware as above)

-CM7 Nightly #179, Glitch Kernel v13, Voodoo Color App with sliders reset and gamma reset to 2.3.3 default

> For the Android phones, I used supercurio's Voodoo Screen Test Patterns app on max brightness.

> For the iPhone 3G, I simply set the brightness to max and measured the brightness on a blank browser page.

++++++++++++++++++++++++++++++

Test Setup:

> HCFR Colorimeter (version 2.1)

> Datacolor Spyder 3 colorimeter (USB, less than a year old)

> Dim lit room (low incandescent in the background, plus one monitor on low brightness)

-Datacolor software -> Current Ambient Light Level: Medium

I used the Spyder3 to calibrate my IPS monitors on a regular basis. I have had no issues with it in the past. I know that the Captivate has 670 nits luminance. The sliders are maxed out in the Voodoo Control app.

General Observations:

While using the Voodoo Screen Test Patterns app on the Galaxy Nexus, the rest of the screen dims as the test region gets brighter.

This seems to be the case for the AT&T GSII, but to a somewhat lesser extent.

After leaving the app on IRE 100 (white) for 10-15 minutes on the Galaxy Nexus, the phone began to get slightly warm.

++++++++++++++++++++++++++++++

Infographics:

Galaxy Nexus Grayscale Measures: (the RGB levels/Data section is for 100% Gray)

Galaxy Nexus CIE Diagram (reference is sRGB):

Galaxy Nexus Color Temperature (Grayscale):

Galaxy Nexus Luminance Graph:

Galaxy Nexus Near Black:

Galaxy Nexus Near White:

Galaxy Nexus RGB Levels:

Galaxy Nexus Saturation Luminance:
[Samsung Galaxy Nexus] devadvance:
Infographics Continued (iPhone 3g, GSII, Captivate):

iPhone 3G Free Measures:

AT&T Galaxy S II Measures (Grayscale):

AT&T Galaxy S II Color Temperature (Grayscale):

AT&T Captivate Measures (Grayscale):

AT&T Captivate Color Temperature (Grayscale):

AT&T Captivate (Reset RGB) Measures (Grayscale)

AT&T Captivate (Reset RGB) Color Temperature (Grayscale):

AT&T Captivate (Reset RGB) CIE Diagram (sRGB reference):
[Samsung Galaxy Nexus] lukesky:
so does it mean the Nexus has the dimmest screen?
[Samsung Galaxy Nexus] devadvance:
Yes. Probably to keep power draw down.
[Samsung Galaxy Nexus] albireox:
Thank you for the results. Probably a direct comparison with the Galaxy Note would be helpful, since both share the same screen technology (SAmoled, HD).
[Samsung Galaxy Nexus] Vash63:
Dimmest maybe, but still completely sufficient. Incredible contrast in clarity make it more than worth it. Might be a bit worse in daylight but indoors you really only want ~80-130cd/m^2 anyway.
[Samsung Galaxy Nexus] nybmx:
Just wanted to say thanks for going out of your way to do this. This is especially relevant to me since I had the captivate for over a year before I upgraded to the at&t gs2. I'll be picking up the GN for sure once the price is <$600.
[Samsung Galaxy Nexus] Manacit:
I guess it's a good thing I live in Seattle, where there's only 71 sunny days per year :p

At any rate, thanks for the tests OP - I wonder if the screen is capable of more and just limited to conserve battery, or Samsung intentionally put in a dim screen? Either way, on stock autobrightness I've been completely fine.
[Samsung Galaxy Nexus] jpalo:
Being a newbie with these graphs, can I see in some of them that black is not 100% black but has LCD backlight-like glow?
[Samsung Galaxy Nexus] supercurio:
Hi!

Thanks for those measurements :)

On Galaxy Nexus I see 3 issues:

- Some black clipping (I'll need to confirm that with another colorimeter)

- Average gamma is 2.1 instead of 2.2: lack of contrast and "punch", some "dullness" in color reproduction.

- At IRE10 color balance is inconsistent.

Something else, really strange and need also confirmation: saturation measurements placement in the CIE diagram is not linear (first points are more spaced than last ones). Looks like a color saturation boost is active.
[Samsung Galaxy Nexus] dinan:
Yea the Galaxy Nexus seems to have the power savings of samsung phones but no option to disable it. On my galaxy S2 it's an option called "Auto adjust screen power - Save power by analyzing image and adjusting LCD brightness" which I usually don't check. You can tell it's there on the Galaxy Nexus if you're on a white page and just bring up the keyboard which takes up half the screen, the top half of the screen becomes even brighter white than normal.
[Samsung Galaxy Nexus] supercurio:
Yes your analysis is spot-on.

I will probably find how to disable that and restore a normal response.

This feature makes sense for power saving but I personally hate the inconsistent brightness response.

Also its nite helping reading webpage outdoors
[Samsung Galaxy Nexus] jenicekk:
Galaxy NEXUS desperately waiting for voodoo color :( with out screen is yellow yellow and yellow
[Samsung Galaxy Nexus] T-Keith:
A test that does not test the phones on maximum brightness is worthless. The nexus just has aggressive dimming and it really is giving it a bad name.
[Samsung Galaxy Nexus] supercurio:
Hi jenicekk I bought a Galaxy Nexus and planned to work on its screen.

T-Keith yes colour rendering for Super AMOLED screens can differ with brightness levels and Galaxy Nexus is an example where it really matters.

Also unfortunately the measurements here can be false because Galaxy Nexus implements a very strong CABC algorithm that can't be disabled by users.

(Content Adaptive Brightness Control)
[Samsung Galaxy Nexus] jenicekk:
supercurio thank you very much, you are my hope for realy white screen :)
[Samsung Galaxy Nexus] chrisexv6:
+1!!!

I guess Im not the only one that feels the screen color temp is too "warm" (i.e yellow/orangeish). Quite different compared to my Fascinate.

Voodoo Color would make my day!
[Samsung Galaxy Nexus] matt30:
This is not about brightness but I thought it would be interesting nontheless.

I don't have 8 posts, but if someone can post the pictures from that site it might be a little enlightening.

anandtech.com/show/5000/galaxy-nexus-pentile-discussion-confirmed
[Samsung Galaxy Nexus] chrisexv6:
Im fairly technical, but couldnt really interpret whats in here.

My main question is, does this prove the color temp of the Nexus (that was tested, at least) is a little on the warm side? i.e. whites dont look pure white, greys have a slight brown tinge, etc?

Thats the issue Im dealing with right now....really didnt want to have to order a replacement (bought online, not on VZW) just to see if its any better, if its really not and I just need to be patient for Voodoo Color to come out :)

Thanks.

-Chris
[Samsung Galaxy Nexus] devadvance:
All of the phones were manually set to full brightness. That means under screen settings, the auto box unchecked and slider all the way up. If you're talking about a power savings mode like on the GSII, I can't control that on the GN since there's no box to tick/untick. But the Voodoo test app should have helped somewhat, since an isolated center white area means that white area is brighter than if the whole screen were white.
[Samsung Galaxy Nexus] ANDRESIX:
Gracias supercurio, thank's

I follow you on twitter and believed that only work with the note and s2 galaxy.

For when a voodoo sound? :-) I have a galaxy s and the sound is incredible :eek:.

Thanks for your work
[Galaxy Note GT-N7000 Android Development] chisum14:
stock rom

radio: n7000xxkk5

kernel : stock

rom: gingerbread.zskk1

mirco-sd card imation 32GB class

CWM 5.0.2.7

BACKUP COMPLETE!

BUT CHECK MD5 MISMATCH~~
[Galaxy Note GT-N7000 Android Development] chisum14:
Anyone can help me~~
[Galaxy Note GT-N7000 Android Development] lokto7:
have you tried backup to internal memory instead of the external sd card?
[Galaxy Note GT-N7000 Android Development] chisum14:
i alredy to try backup to internal memory , same check MD5 mismatch.....
[Galaxy Note GT-N7000 Android Development] goddamnit:
Google keyword : cwm recovery md5

Check this post .

http://xdaforums.com/showthread.php?t=714114
[Galaxy Note GT-N7000 Android Development] faisal.husain:
I too have exactly the same issues. However, if I run the restore from chainfires cwm app and do the restore from within Android it works. This is not ideal since I need a working ROM to do the restore
[Kindle Fire Themes and Apps] mrrush101:
I am looking for a notepad app that has an audio alarm reminder. I have Catch, ColorNote and Evernote but none of these has a sound alarm.

I want to add appointment for doctors on a certain day and be reminded of the appointment with sound not a popup.

Any Ideas?

Thanks
[Epic 4G Q&A, Help & Troubleshooting] suarezl2:
Where are the default ringers located?
[Epic 4G Q&A, Help & Troubleshooting] KennyG123:
System\media\audio\

You will see them in the sub folders.
[Android Q&A, Help & Troubleshooting] Jesterhead85:
Can anyone help please?
[LG Optimus 2x] qwyncy:
guys pls help,,i cant update to v20l because of this error keeps showing up,halting the update process

11:49:41 : [C:\LGMobileUpgrade] Try to delete folder

11:49:41 : RemoveDirectory1 Error(2):C:\LGMobileUpgrade

11:49:41 : Start Date : 2011-12-06 11:49:41

11:49:41 : ---------- QM Testmode ---------

11:49:41 : ***** Check Tool Version *****

11:49:41 : Tool version : 1.5.4.4

11:49:41 : UpgradeDLL version : 1.2.6.5

11:49:41 : Current Dir : C:\ProgramData\LGMOBILEAX\B2C_Client

11:49:41 : LGE USB Driver Version :

11:49:41 : Android PDLV Version :

11:49:41 : Android NDLV Version :

11:49:41 : ******************************************

11:49:41 : [C:\ProgramData\LGMOBILEAX\Phone] Try to delete folder

11:49:41 : RemoveDirectory1 Error(2):C:\ProgramData\LGMOBILEAX\Phone

11:49:41 : SetEmerModeAT()

11:49:41 : _IsConnectedPhone Call

11:49:54 : _IsConnectedPhone(1)

11:49:54 : 0 - NotConnected.

11:49:54 : 1 - Normal connect success

11:49:54 : 2 - Emergency connect success

11:50:02 : _IsConnectedPhone Call for SmartPhone

11:50:05 : _IsConnectedPhone(0)

11:50:05 : 0 - NotConnected.

11:50:05 : 1 - Normal connect success

11:50:05 : 2 - Emergency connect success

11:50:05 : *****CheckOS Start********

11:50:05 : Microsoft_Windows7_Professional_

11:50:05 : *****CheckPCSyncPrograms Start*****

11:50:06 : PCSyncPrograms Not Found - OK and ready to upgrade

11:50:06 : Checking the connection with the cell phone...

11:50:06 : dwWaitResetTime(40000 ms)

11:50:07 : _IsConnectedPhone Call

11:50:20 : _IsConnectedPhone(1)

11:50:20 : 0 - NotConnected.

11:50:20 : 1 - Normal connect success

11:50:20 : 2 - Emergency connect success

11:50:20 : Phone Mode(1)

11:50:20 : *****GetPhoneType Start*****

11:50:31 : [011,700,147,062,092]Updating is not possible any longer due to a fatal error.\n\n[009,400,102,102,102]Disconnect from and connect the cable into your phone again and remove \nand install the battery and press the [009,700,102,102,102]'Restart'[009,400,102,102,102] button. This will resume the \nupgrade.\n\n\n\n\n\n\n\n\n\n\n\n\nPress the [009,700,102,102,102]Quit[009,400,102,102,102] button to stop the update. (_CheckPhoneType() Error)

11:50:31 : !pUpgrade->StartProcessing ... PostMsg STEP_TYPE_ENV_ERROR

11:50:31 : Page_Error ºÎºÐÀÔ´Ï´Ù

11:50:31 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

11:50:31 : OnStepMsg STEP_TYPE_ENV_ERROR delete m_pLGCyonUpdate
[LG Optimus 2x] neldiogo:
How did you solved it ? I'm trying to update my LG970 to V20N trough kdz and I'm getting the same error:

21:49:27 : *****GetPhoneType Start*****

21:49:36 : [011,700,147,062,092]Updating is not possible any longer due to a fatal error.\n\n[009,400,102,102,102]Disconnect from and connect the cable into your phone again and remove \nand install the battery and press the [009,700,102,102,102]'Restart'[009,400,102,102,102] button. This will resume the \nupgrade.\n\n\n\n\n\n\n\n\n\n\n\n\nPress the [009,700,102,102,102]Quit[009,400,102,102,102] button to stop the update. (_CheckPhoneType() Error)

21:49:36 : !pUpgrade->StartProcessing ... PostMsg STEP_TYPE_ENV_ERROR

21:49:36 : Page_Error ºÎºÐÀÔ´Ï´Ù

21:49:36 : ¿©±â´Â Retry ºÎºÐÀÔ´Ï´Ù

21:49:36 : OnStepMsg STEP_TYPE_ENV_ERROR delete m_pLGCyonUpdate
[LG Optimus 2x] Deivi_Z:
so how did you solved it?
[LG Optimus 2x] Vexamus:
Soooooo, how'd ya do it? I'm stuck as well.
[Desire Q&A, Help & Troubleshooting] paragod15:
Question, anyway you can get back origional keyboard before i flashed cm7? Im not real thrilled with new android keyboard
[Desire Q&A, Help & Troubleshooting] MatDrOiD:
About which keyboards from which android versions are you talking about?

Sent from ICS with Transparent XDA App
[Desire Q&A, Help & Troubleshooting] MattchuR:
You can allways download the gingerbread keyboard (by Steven Lin) from the market and use that as your input method. It`s my preffered keyboard.
[Desire Q&A, Help & Troubleshooting] stankyou:
You are using Desire HD? Then you are in the wrong section :P

But to answer your question, I assume that the original keyboard you are referring to is the one that came with the phone when you bought it right? That is the HTC IME keyboard.

Seach for HTC IME keyboard on the forums. There is a thread for it and you can even customize the looks if you want.

The keyboard that's on the CM7 rom is actually the official android keyboard.
[Desire Q&A, Help & Troubleshooting] paragod15:
Thanks guys appreciate it
[Atrix 4G Q&A, Help & Troubleshooting] drags_:
I have a 8gb sd card and want to have everything installed including the firmware on there and use the 16gb storage only for movies/music. Is this possible at all?
[Atrix 4G Q&A, Help & Troubleshooting] ltdanno360:
not every app can/will run proper from the sd card and the Firmware deffenetly not
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Cromius:
Only posting this because I haven't seen it in the few posts up for our Skyrockets.

After rooting, I got android's built in wifi hotspot working by simply freezing the system app "TetheringManager" in Titanium Backup.

Hope it helps anyone having issues.

<BC>
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] frejos:
Thanks! I was just looking for that. Worked great.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] waiters:
Be careful att will force you onto a tethering plan
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Cromius:
Is this any different than tethering from a custom ROM once the AT&T config is removed? I've been tethering on my Captivate for well over a year now and this seems to function identically.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] the2rrell:
Yea its the same, Devs usually take out the teathering manager on there roms
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] discothan:
All you need is a Widget that turns on tethering...so you don't have to click so many buttons to turn it on!

I like the Hotspot Widget.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ginther:
Can anyone confirm this?

I dont tether or hot spot my phone very often, but dont want to get hit with unexpected charges if I do choose you use this feature on a rare occasion.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] 00mred00:
you get warned first
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dac1227:
Using Alien #4 on Motorola Atrix, I would tether w/o plan maybe a couple times per month and no warning.

I tethered nearly everyday for a few weeks in October, only went 1GB over my 2GB plan, and got the emails and texts telling me to add tethering plan IF I wished to continue tethering. This coincided with my Skyrocket purchase -not suggesting a connection, but coincidence maybe, or not.

They'll catch on I suppose by one using large amounts of data w/o historical habits supporting your recent surge in any given time period, APN or software left on phone, or even the possibility of CarrierIQ (suggested in another thread about tethering)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ginther:
Ok. A warning first is acceptable. I dont do it often, but for those rare occasions when I need something on my laptop instead of my phone, I can tether/mobile hot spot and be ok.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Charles::
On the gf's Captivate, rooted and ROMd, she got a warning that they were going to automatically put her in a tethering plan, so I'm not sure how they knew. Does that have anything to do with Carrier IQ??
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Catala1999:
Do I have to root the phone to tether without the regular menu? I tried to do it and it tells me that I don't have a plan. I would like to know if there is a possibility to change the way to create a hot spot without have to use the regular menu and not to have to root the phone.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ginther:
Not any way that I know of without root. You need root to use Titanium Backup. You need TiBu to freeze tethering manager. So without root I believe you're stuck.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Dathaeus:
Is there no ROM out there that provides free tethering for ATT? I was about to install the ICS 2.3.6 from rootzwiki, but will hold off if there is something with free tether and it doesnt...

If there isnt, what is the point of getting any ROM/feature for tethering when ATT offers it anyways, I thought the whole point was to get it for free... although I guess if ATT tracks everyone's data usage, it would be hard to mask that... but with these genius programmers, I would have thought anything was possible... would be nice to get a little 20mbps wi-fi no matter I go....
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] plwalsh88:
It's not CarrierIQ or solely data usage that tells AT&T if you've been tethering; it's the UserAgent on your laptop/desktop browser. That's how they can tell that their data is being used through a computer browser and not a mobile browser. So even with these custom ROMs providing "free tethering", AT&T can still figure it out and send you the warning email/text, as I did in fact receive (on my Captivate). So unless these newer ROMs have figured out a different method, I would assume the same logic still applies - correct?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
This method worked for me (freezing tethering manager). But, then again, I rarely tether, and when I do, it's only for very short periods of time.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nidnarb:
I've been tethering my skyrocket since I've rooted it and tethered my iPhone 4 before that. The worst thing that has happened so far is that i got a text message saying ive reached 5% of users Data. Nothing about tethering. I usually tether about 5 gigs a month.

Edit. I use tethering with the Alien rom.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Dathaeus:
So maybe it is by amount of MB's of transfer and not just software? I.e., if you dont use a lot, then you will get away with tethering... I wont use it often, probably like once a month when I am on the road and need my laptop and not at a wifi... then again with my crappy DSL I may be tempted to use it at home if it were invisible.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] RipplingHurst:
I like the "hotspot toggle" app. It restores wifi and gives you more options on labels and appearance.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] rajb2r:
tried using skyrocket as a wifi hotspot, but connected device has very slow internet

Hi geeks

I want ur help, I followed the procedure given in this forum to root my skyrocket and also installled titanium backup to freeze tetherManager to enable wifi hotspot. But when I connect my Lenovo ideapad k1 to the hotspots, it is not getting the full speed that is available in my at&t 4g connection. Please find the speedteast.net app on my phone and tablet below:

Phone:

Showing :Washington DC

Ping: 90ms

Download: 3230kbps

Upload: 726kbps

Tested on Lenovo ideapad k1 connected to the phone's hotspots

Shows: Richmond VA

Ping: 303ms

Download: 202kpbs tooo. Slow!

Upload: 284kbps :(

Please pour in ur suggestions guys.. any apparently that can be used? Should I disable any more programs? Please help me.. I am in the 3 YB data plan.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ZenPHP:
Glad I found this thread. Not having a custom ROM yet, I was missing being able to tether to my phone. Thanks!

This lines up with my experiences, when I try to tether my laptop, the data connection just seems to get shutdown after the first request or two. But if I tether my Android tablet, it works great.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] RipplingHurst:
Well, you can change your user agent using say dolphin browser. I have tethered my tablet in the past that way and I was never flagged. I doubt thats the sole explanation.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pron72:
I use an app called foxfi. I am not rooted and on 2.3.6. It works really well.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droid512:
Yep this is what I've been using i accidentally chewed through my 5 gbs a few months ago

CM9 Skyrocket
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] skibby1369:
Greetings to all , I just installed titanium backup pro and try to search for tethering manager with no good luck, skyrocket 4.04 version any ideas please ,im with att
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jujutsuka:
Possibly TTL?

Could it be an issue with the carriers seeing a different TTL (Time To Live) on the packets, when the phone acts as a router? If so, is there an app that acts more as a proxy server?
[AT&T Samsung Galaxy S II SGH-I777] substance12:
I'm currently using an inspire but there are a few things I dislike about it.

1) camera

2) external speaker

3) weight

4) screen is just average

5) gps is inconsistent no matter how many gps tweaks i do

i can't see to find a sgs ii in a store to check out. i can only find the LTE version, the skyrocket or whatever it's called. anyone here come from an Inspire? how do they compare? pro's cons?

how is the developer community here? i'm quite satisfied with cm7 on my inspire and the devs are hard at work trying to get ICS running. It seems like the international sgs ii is the one that's getting the most dev support and rom's made for that phone are not 100% compatible with the AT&T version.
[AT&T Samsung Galaxy S II SGH-I777] AntwanL:
Much faster than my inspire, touch wiz is very different. GPS seems better but I think it's just my area. Screen is worlds better so is speaker, but I like the srs on the inspire better for headphones. Camera is much faster too.

The phone just feels much more responsive. Weights feels about half the inspire. I love the sgs2 better than the inspire even with a few things I miss from sense.

Sent from my Samsung GT-I9100
[AT&T Samsung Galaxy S II SGH-I777] substance12:
95% of the time i'm listing to podcasts. 5% pandora. how much does the SRS make a difference? i don't think the inspire is impressive with sound on a headset, i just think it's normal. wouldn't the type of headset you used make a bigger difference than srs?