Cyanogenmod 9.1 for Galaxy Tab p1000 review

The main usage for my tab was music, videos, web, email, news, feeds, books and magazine. There wasn't any thoughts off changing the stock rom(gingerbread 2.3) since it performed without much lag, until there was an app called Greenify. This app will automatically hibernate apps if you assign those apps that seems unimportant into the hibernate list. Eventually, the OS runs smoother and saving more battery because it cuts down apps running constantly in the background.

It has been a problem on gingerbread where the apps start to slow down after launching multiple apps and closing them. Those apps silently running at background waiting for notification and sometimes task killer wasn't able to help much. I had Greenify running in my Galaxy Nexus phone for a couple of weeks and I love it how it improved my phone performance. But there is a problem. It only supports Android version 4.0 and above and this leads to a thought of upgrading my tab to Cyanogenmod 9.1 stable version.

There are a couple of hiccup when trying to install the ROM through the website instructions. The first pitfall was the recovery ROM wasn't able to install at all. I have gone thru xda website and what I found was the overcome gingerbread fresh install rescue. This approach was to reset everything in the tab to the stock version and do a fresh custom ROM install.

Cyanogenmod 9.1 stable

First was to install the overcome cwm recovery. In the process, the overcome recovery ROM will upgrade the file system to ext4 so Cyanogenmod can run on top of it. The whole installation can be found in the link below:

[ROM][2.3.6] Overcome Rom 4.1.0 new links

After I loaded Cyanogenmod 9.1 using the overcome recovery and boot up the tab, lo and behold, the tab now response much smoother and fluid than stock gingerbread. Flipboard flips without any lag and apps for android 4.0 can be found in play store and install with no issue.

After a month of use, nevertheless, some apps do not work well with single core CPU device. Chrome browser and Google Current is laggy. However, those apps can be replaced by Flipboard and default android browser (lacks in feature but performs rather quick in opening website). Due to 512mb of Ram, I got rid of widgets and limit to one homescreen to improve app launching performance. Video (depends on hardware acceleration support, if the format not supported, it's going to be jerky.) and music (comes with DSP manager, which includes the voodoo sound fix) works flawlessly. Wifi and 3G internet connection has no issues. Camera is working alright but not stable sometimes. I don't use the camera much on my tab so, it's not much of a fuss for me. Web, feeds, news, kindle, books and magazine is a joy to read using the new rom (with fancy transition) and the supported apps. There is no frustratingly slow down and lag that hinder the reading experience.

Battery life is about the same as in gingerbread but occasionally there are battery drain if the tab stay for too long without reboot. Mind you, I was using smartassv2 cpu government which is provide the best experience for performance and battery life saving ratio. That being said, the Cynogenmod 9.1 stable is not without flaw (can be fixed with reboots).

Finally, I have not tested the call quality and phone stability so I can't comment on that (sorry for the P1000 owners that use it as a mobile phone). However, as far for the 3G mobile data connection, there are no unstable data connection or lousy mobile reception. I gueess it should be fine to use the P1000 as a mobile phone.

In summary, I would recommend the Cyanogenmod 9.1 stable for Galaxy Tab p1000 owner who got bored with the gingerbread stock rom and missing some Android 4.0 and above supported apps. Give it a try and you'll find the P1000 is like a new toy again.

Ebay Cmoy Amp (rechargeble) home user review

The problem
I have been listening using my Galaxy Tab 7 plus Shure SE215 for more than 6 months now. Recently, I found out that Galaxy Tab 7 has overly high output impedance (25.73 ohm) which will affect the sound of my SE215, which only has impedance of 20 ohm. According to this article, headphone/earphone work best 1/8th of the source output impedance. In this case, SE215 should work best with 20/8 = 2.5 ohm output impedance.

The solution
Cmoy headphone amp has a reputation of working well along with headphone impedance from 16 ohm and above (depending on the amplifier chip and current). SE 215 has impedance above 16 ohm which fits well with this amp. From Ebay, I bought a Cmoy with OP2227 chip and powered by one 9v battery. Similar, to the famous JDSLab Cmoybb but a lot cheaper (plastic case and rechargeable battery setup).

The result (Pros)

1. Sound improve with more detail, less noise, quieter background and soundstage widen (music sound like injected with more air).
2. Analog volume control rather than digital from my Galaxy Tab, hence more fine control on the volume.
3. DIY amp allows swappable electronic component such as the amp IC chip. (However, I won't put my time on swapping the amp chip.)
4. Built in rechargeable battery circuit. Save time and money on getting a separate battery charger.

One problem solved, more problem pops up (Cons)

1. Battery life - max 6 hours. Recharge is required for every fourth day (2 hours used everyday).
2. Separate amp unit - not pocketable. (I put my player and amp into my backpack, not really a con for me.)
3. Battery not swappable due to enclosure is screwed tight. (I might want to switch to Lithium Ion battery for longer hour listening in future)
4. Plastic case - no radio frequency/EMI blocking. The amp is mean for a portable player, not for cellphone. My bad for not paying attention on this one.
5. Low build quality (depends on bad luck) - loose audio socket after 3 weeks of used. Popping sound and lost of volume with a slight movement on the cable. However, it still work well as a desktop amp. Update: I have sent the amp back to the seller for repair and hope the problem will be fixed permanently. The seller repaired and returned my amp back after a week and I'm happy with the result. The volume is much better now and there is no more loose audio socket.

The summary
I bought the Cmoy amp + shipping cost almost AUD 60 (same setup for JDSLab CmoyBB cost more than AUD100) and the bottom line question, is it worth it? Frankly, I would say NO based on the problem I listed above. For people who is getting a Cmoy Amp because of limited budget, I would recommend saving a little more and get a better quality amp (e.g. Fiio E11, Fiio E07K, CmoyBB).

Currently listening...

House Mix music and work best with DJ headphone.

UT Transmissions - 22/03/12 - Leigh Morgan by Urban Torque® on Mixcloud

Boning a chicken

Bought one whole chicken on Sunday and try to bone it based on online video tutorial. It came to my mind when I saw Martin Yan (search his name in YouTube) bone a chicken within 18 seconds and New York Times also release a video on how to bone one.

My first try wasn't going well as I couldn't get the wings bone location right. But I manage to get the drumstick, thigh and breast cleanly off. Nevertheless, practice makes perfect and I'm looking forward on the next chicken to perfect my skill.

After separated the meat, the remaining bone was used to make a chicken soup for dinner and it really taste much better than using chicken meat.

In short, it's cheaper to buy a whole chicken and worth more value than buying chicken meat separately.

Second gathering

It's good to be back to the same bar and same table again. However, this time we're joined with more member from classmate. One just finished his wedding with everything goes well for him. One is expecting a child this coming October. The rest hasn't change too much since we last met.

Well, one thing for sure everyone is enjoying that night and looking forward to the next meeting.