The (weird) world from the eyes of a software engineer, C|EH, amateur musician and electronics engineer wannabe. Posts are categorized to suit different audiences. :)
Friday, January 18, 2013
Sunday, November 18, 2012
印象:遠い世界2012マレーシア
Final note:
Don't trust public transportation in Malaysia - they close earlier than what they've published. If it weren't for munchkin, I'll be camping in KLCC for the night =w=d
Sunday, September 23, 2012
Vsonic GR07 MK-II
Now that I’ve lost my last surviving earphone (an unauthorized ownership transfer, if you get what I mean), I’m no longer accompanied by my Westone 3. Still, a portable pair of earphones is needed, as bringing full-sized headphones out is a no-no for me.
Designed and manufactured in the land where most of our stuffs are made, Vsonic’s GR07 has a surprisingly good reputation in the audiophile community. Those who seek this pair of IEMs are mostly looking for the best bang-per-buck ratio available in the market.
In a nutshell, the GR07 is a dynamic IEM (as opposed to balance armature, or BA drivers gaining popularity lately). What makes it stands out from the rest is the use of bio-cellulose diaphragm, for increased sound quality, as well as its (patented) variable angle adjustable nozzle, for a better fit.
The MK-II (usually pronounced as mark two) is the latest product revision for GR07 – spotting cabling made out of 40 strands of silver (yep, Argentum) core for each of L/R channels, and 82 strands for ground.
Packaging
The GR07 MK-II comes in a minimalist white box (ala Japanese products). What’s interesting is it came with a self-sealing synthetic leather carrying bag, in place of a zipper pouch in the previous version.
The bag is generally more preferred over a pouch due to its ability to fit inside any standard sized pocket, in exchange for lower protection of the contents inside.
The GR07 MK-II comes with a generous amount (15 pairs) of ear tips, which one of them is Comply foam, and 3 pairs of hybrid foam-filled silicone eartips (interesting…)
Build
The jack a standard L-shaped gold-plated 3.5 mm TRS jack with strain reliefs. One must be extra careful with L-shaped jacks as putting it inside your trousers would strain the cables.
The silver cables are insulated with soft silicone, which doesn’t seem to offer much protection against tugging and other kinds of physical torture. Extra care is advised when handling the earphones (bah, I broke even Kevlar wrapped cables last time, boo-hoo).
Sound
Now, to the interesting part of this review – the sound. At the time of writing, I have yet to complete the recommended 300 hour burn-in, so the following perceptions might vary with a pair of fully burnt-in GR07 MK-II.
The sound stage is kind of standard for an IEM, slightly bigger than Westone 3 in my opinion, but definitely a no-match to a pair of full-sized headphone.
Treble extension is surprisingly good for IEM of this price (less than 1/2 the price of Westone 3, just to let you know), I do not perceive any difference in extension when compared to (my memories of QwQ) Westone 3 - the highest of highs are finely reproduced.
The only complaint I could give to the treble response is the instability when it comes to the sound of crashing cymbals – they are very harsh and grainy to my ears. “Sibilance” is perhaps the term that I should coin here.
The mids are very smooth with just the right amount of clarity, making this pair of earphones perform exceptionally well in vocal tracks. No complaints here!
Good extension is achieved in the bass, the GR07 MK-II is able to deliver the deepest of bass without a hitch. As for bass quality, “natural” is what I put it – not as tight as most BA drivers which lacks the timbre of good ‘ol bass, but all within good control.
Bass-heads will probably not be satisfied with the bass quantity, as this pair of earphones is designed with neutrality in mind, which is a good thing especially when listening to classical instruments. For a phatter bass response there is always an EQ away, anyways – as the GR07 MK-II will not fail to deliver if you really demand it.
Conclusions
“No surprises” is what I would give if you ask me for a verdict. It’s definitely a good pair of earphones – cheaper ones like Fischer Audio Silver Bullet would not even come close in terms sonic accuracy, but then again, they’re just around 1/3 of the price of GR07 MK-II =P
For a pair of IEMs at half the price of Westone 3, it came with only one drawback related to sibilance, I would say it really gave an awesome bang-per-buck ratio.
Recommended.
Wednesday, September 19, 2012
シフト!
No, it doesn’t necessarily go faster when you step harder on the gas pedal, unless you’re (a lucky kid) driving an automatic or simply afford a kick-ass engine.
On a 1.1 ton body equipped with a very modest 1.3 litre powerhouse, shifting technique could make it between totally un-drivable to a arguably fun-to-drive machine.
Driving an ICE requires gradual shifting, jumping queues (unless you know what you’re doing) will not get you anywhere and might even stall it.
Driving with the throttle wide open, unless in very specific conditions, will not go any much faster than an optimized throttle, but burns fuel like igniting a bucket of petrol.
There are two types of shifting techniques – early shift and power shift.
(all techniques are based on Mitsubishi 4G13 SOHC EFI on a 1.1 ton chassis)
Early Shift
This is the most economical way of shifting, suitable to be used in city driving conditions where it is unnecessary to accelerate rapidly. It exploits the low RPM torque of the ICE, right before the torque dip.
Basically has the following mappings on flat terrain:
- 0 – moving slightly
- moving slightly – 30 km/h
- 30 – 40 km/h
- 40 – 50 km/h
- 50 km/h and beyond
In the case of congested traffic, reduce all numbers by 5 km/h.
Power Shift
This is to get you moving as fast as possible, suitable for sprinting from toll booth into the highway and overtaking. It is also the most fuel inefficient method (besides bad shifting).
Mapping on flat terrain:
- 0 – 40 km/h
- 40 – 60 km/h
- 60 – 80 km/h
- 80 – 100 km/h
- 100 km/h and beyond
Throttle Levels
For congested traffic, keep your throttle at 10% or less. 20% throttle for city driving and normal highway acceleration. 50% throttle in highways if you don’t plan to burn your pocket. If you reach 80% throttle and you’re below 4000 rpm, you’re doing it wrong. 100% throttle when you’re doing it at near redline at 5th gear.
Increase throttle only when you feel the RPM is rising with the opening of throttle (responsive). If it doesn’t (sluggish), either keep your throttle that way (if you’re comfortable with the speed), or try downshifting (if you’re trying to accelerate).
Additional Notes
Shifting and throttling heavily depends on the vehicle. My numbers are based on everyday commuting of 100 km for a year while monitoring the fuel consumption.
Wednesday, August 15, 2012
Beyerdynamic DT 880 PRO
Once upon a time I ordered for a modified pair of Fostex T50RP (Thunderpants) from Smeggy. A year later it was still nowhere to be seen, and Smeggy vanished from the depths of the Internet.
To-date, all that is left in my earphone collection is my trusty Westone 3, which survived multiple cable breakages. It was time to search for a Thunderpants replacement, until it arrives (or not).
In the end, a good deal caught my eye - a brand new pair of Beyerdynamic DT 880 Pro (250 ohm version), with GoVibe Peak desktop amplifier selling cheaper than what I paid for my Westone 3 last time. A quick search on Google suggested this pair of earphone was once the top 3 gems before the era of Sennheiser HD800 series.
Packaging
Build
Sound
Conclusions
Saturday, May 26, 2012
23歳まで
Today marked the end of my 22nd year since I joined the ranks of the earthlings.
Throughout my 22nd year in this world, there were many little, yet important milestones made, and I figure now is the time I list them down permanently into the persistent fabric of the Net.
June 2011 – MDeC Undergraduate Training
This is a government-sponsored soft + technical skills training for undergraduates, which I think was very inspiring and somehow showed us a glimpse of what we’re capable of.
July 2011 – [First Time] Got Spoon-fed by a Girl :P
It was Bryan and Joseph’s idea. I’m innocent, really :3
August 2011 – [First Time] Road Trip with (only) Friends
Including the camera man (shown below), the lamest possible combination of friends you could possibly find. The result? Awesome time :D
August 2011 – [First Time] Hiking with Friends
And this is the origin of the awesome photo above. Met with two tan chi gui (shown below) that later on became a big chunk of my life.
September 2011 – [First Time] Officially Joined a Company
My first full-time job – as a software engineer. First time working in Cyberjaya too :3
Learned quite a lot during the course of working in this company, especially on smart card and government multi-purpose card as well as their related technologies.
October 2011 – Graduated with First Class Honours
Got selected to present a short speech in front of 2011 KBU-SHU graduates.
November 2011 – [First Time] Road Accident
Had my first accident during a heavy downpour between Putrajaya and Cyberjaya. Got fined RM 300. Moral of the story: drive slow when it’s raining – you’ll never know if there’s a pool of water right in front of you.
Well, that was the only moral of the story, before I got rammed from the back on the next day by another car while my (mom’s) car was perfectly stationary during a jam in LDP.
December 2012 – [First Time] Beijing Business Trip
Went on a business trip with boss to Beijing to finalize system designs with China counterpart. No time to go for sightseeing, yet still a very fruitful trip :D
December 2012 – [First Time] Wrote Software for the Government
Wrote MyKad initialization and personalization SDK for JPN. Besides that, setup and deployed the new MyKad KMS, and conducted my first UAT with JPN.
January 2012 – [First Time] Baked a Pizza
Though there were numerous attempts of baking something before this, this was one of the first attempts of baking unassisted (there was cookie, but I’m too lazy to post that) :P
January 2012 – [First-Time] Earning Bragging-Rights on the eGenting Programming Competition
Sweet, sweet victory… Finally.
February 2012 – Second Prize in IBM Smart Cloud Camp
Accidentally drank invisible potion on that day.
March 2012 – [First Time] Being on TV (Animax)
Attended Animax Carnival 2012 and got interviewed (along with Shi Hao) by Animax. I was told we made it on TV, but I didn’t get to watch it myself. Aaaand no, that’s not me inside the Beelzebub costume.
March 2012 – [(Might not be) First Time] Publicly Humiliated Myself
… by playing Microsoft Kinect in a shopping mall.
May 2012 – [First Time] Birthday Cards from Friends
I had fun on that day. The card and cake were super-awesome too :D
You guys are awesome ;’D
25th May 2012 – [First Time] Celebrated Birthday with Colleagues
And our admin lady’s birthday falls on the same day. Happy birthday Habibah!
Thanks guys :D
Monday, March 19, 2012
バカチキ
Saw a dog lying helplessly beside LDP this morning. It was impossible for it to cross the road without getting rolled over by an incoming vehicle. This is not the first time I see dogs lying beside the highway.
Though, this is indeed the first time I see a collared dog brought into this terrible fate caused by human civilization.
Every time I see a dead carcass on the road, I think of how human civilization has impacted the living things around us.
But then again, I didn’t stop my car and carry the dog to safety. The thought came across my mind, but overcame by selfishness – worry about my time, worry about my own safety.
Have I lost my humanity?
The words I speak have been missing emotions. The things I do have no soul. I feel like I’m losing the human in me, turning into a cold machine.
A life without dreams, without aims, without directions…
Am I losing myself?