Showing posts with label Gadgets. Show all posts
Showing posts with label Gadgets. Show all posts

Friday, November 23, 2007

Shure SE210 Earphones (upgrade from E2c)

When I bought my Shure E2c earphones two years ago, I was blown away by the sound quality. I never spend more than $50 for earphones before and after buying the E2c model I would never consider downgrading to anything less. Shure really knows how to create addictive high quality products. The quality of the sound produced by my old E2c earphones was so good that I had to get rid of some albums that I ripped into mp3s long time ago when hard drive space was measured in megabytes rather than in gigabytes.

After two years of slave-like everyday service my Shure E2c earphones started to show signs of wear and it became apparent that they were going to retire soon.

Afraid of being without a good pair of earphones during my upcoming transatlantic flight, I got a new pair of Shure SE210. The design has change slightly compared to the older model, but it still preserves the main features that I loved so much.



I've been listening to some music via these earphones for only an hour or so, but I can already tell that SE210 brings "great sound" to a brand new level. I don't consider myself to be an audiophile, but even my untrained ear can hear the big difference between the two. The new pair fits better as well as feels more comfortable in my ears.

J, lost his mind a couple of weeks ago and bought a pair of the high-end SE530. I don't even want to know what those sound like. I know that if I tried them, I would be tempted to pay an insane amount of money for them, so I better say away :)

Saturday, June 30, 2007

TomTom One Caught Speeding!

While writing my post about TomTom One, which I bought recently, I realized that the device is speeding! TomTom One has a feature that enables users to preview the route in a demo mode. TomTom previews the route and all the turns as if you were driving the car, while you sit in your chair. The interesting thing is that my TomTom was "driving" 75mph on the 101 freeway which has speed limited posted at 65mph - standard in the Silicon Valley!!!

TomTom One "driving" 75mph in 65mph zone


A simple explanation is that TomTom bases all its calculations (as well as preview) on the real life speeds rather than "posted" speed limits. I must admit there isn't too many people out there driving 65mph or less on Freeway 101. ;-)

How TomTom Saved My Day

TomTom One in 3D Map Mode


As probably any other technology junkie out there, I had been looking at the evolution of car navigation systems and thinking about how cool it would be to have a device that could really make it easy to travel in a unknown area without having to worry about studying maps ahead of time or having another person filling out the role of a navigator.

A friend of mine bought a TomTom One recently and was telling me how great this device was. Not that he's untrustworthy person, but for some reason I accepted the information but didn't decide to take any further action.

On our last trip to Yosemite, I didn't pay attention to the direction I was driving for a moment and forgot to take a turn that I should have. This little mistake cost us 1 hour delay, wasted gas and created some frustration. At that point I revisited the information from my trustworthy friend and started looking for a GPS car navigation system that was affordable, yet feature rich and reliable.

Consumer Reports made it clear that TomTom One is the way to go. Other reviews as well as information from my trustworthy friend confirmed this.

Last week, my TomTom unit arrived, after I ordered it on the Internet. It looks good, is compact, and is very easy to use. In the following days I started to get to know it during my daily commute.

TomTom One is slim! I bet that many American's envy its figure :-)


It wasn't until last Thursday, that I had to put my TomTom into a real-world test. The main project that I work on right now at Sun is customization and deployment of Confluence for soon to be launched wikis.sun.com. Atlassian, the company behind Conluence, organized Atlassian User Group meeting in Stanford, that I was joining.

Even though I have been living in the San Francisco Bay Area for 2 years now, I don't know Stanford very well. The meeting was taking place in the Stanford campus, which is beautiful, but can be pretty challenging to navigate through thanks to many little streets with many intersections through out the campus. Combine all of that with my "talent" for doing things last minute and you get a person rushing to get somewhere where he's never been before. Sounds like a good challenge for my brand-spanking-new TomTom, right? ;-)

Well it really was. I left from Menlo Park campus much later than I originally planned to, so I quickly jumped into my car, input the destination address and headed out into the unknown.

TomTom picked a route that most likely I would have picked as well if I studied the maps or used Google Maps*. The fact that I didn't need to watch out for turns and making sure that I was on the right street made the whole "rush" much easier.

One thing that I observed during the first ride with TomTom was that the 3D maps that TomTom uses by default are really good. At first it seemed unnatural for me to use 3D maps instead of birds eye's view 2D maps. But after driving with the 2D maps on I quickly switched to the 3D view. It really is much easier to keep track of where you are and where you need to go on the 3D map!

There was one point during my travel to the meeting, when I truly appreciated having my TomTom. When I was already in the Stanford University campus, navigating through a maze of little streets, my TomTom said "Turn right", I tried, really tried - but the sign "Road construction. Road Closed" didn't let me go through. I had to take the only possible turn that there was and ignore the instructions. If I had just a small scrap of paper with driving instructions on it, I would have been lost. With TomTom there is no need for panic, I just took the only turn that I could, TomTom realized that something went wrong and recalculated the route taking into consideration my current position, successfully navigating me around the road construction.

I got to my destination on time and it wouldn't have been like that if it weren't for my TomTom One.

Night Mode


No product is perfect (at least not in my eyes ;-) ), so here is a few things that I'd like to see improved:
  • Reorganized menu - some items that are often needed are buried deep in the menu structure (e.g. clear route), others are not found where one would look for them (e.g. edit favorites)
  • Map Share technology recently announced with the TomTom Go 720 model, should become standard feature for all TomTom GPS products - to make this feature really useful they need to gain critical mass and to do that they should offer it in all products
  • Redo the TomTom Home application - currently I found almost no value in this app - it's just shopping desktop application that happens to be able to backup your TomTom. Did I mention that it crashed on me at least 5 times on my Mac during the few minutes that I used it so far?!? All in all the app is next to useless. Features like creating an itinerary, reviewing past trips, showing some statistics are lacking.
  • There are absolutely no statistics offered for the current trip, or just after reaching the destination. Americans love statistics, so it's interesting that such a feature is missing in a product that is successful on the American market ;-)
  • Rama brought up a good point while we were talking about the device - there is no way to tell your current elevation. Isn't that like the most basic feature of a GPS device?
  • The device seems to be a closed platform - software-wise as well as hardware-wise. I wish it was possible to write plugins that would make it possible to add some of the features that I miss. I haven't found any "developer" section on the tomtom.com website. If it was possible to connect the device with something else than bluetooth cellphones, it would be interesting to see what could one do with a combination of a TomTom and a SunSPOT - temperature, atmospheric pressure, humidity and acceleration readings, anyone? How about switching TomTom to the night mode when it gets dark outside? How many other possibilities would opening the platform enable?
  • Last but foremost - I'd appreciate having a button which when pushed would make a car in front of me disappear. There should be a limit on how many "clicks" one can make per day or week though, to avoid a large scale abuse of this feature, which might have undesirable side effects :-D


See also: TomTom One Caught Speeding!



* btw have you heard of the new real-time route adjustment feature? It would be really great if it was this easy to adjust the route in TomTom.

Thursday, March 15, 2007

500GB eSATA External Storage with Throughput Upto 67MB/s

I was suffering from full-hard-drive disease for a couple of months. So last week I finally ordered an external drive to hold the piles of data I store on my MacBook Pro. This is what I got:
Everything came in mail today, so I unwrapped it and put it together.



The Seagate 7200.10 hard drive is a hard drive, there is not too much to say about it, except for the usual complaint that 500GB ain't 500GB of free space, you get 465.8GB with this baby.

The Vantec enclosure looks really good and has a very good feel to it. It feels much better than any other enclosure I put my hands on. Very sturdy, slim, well designed and well assembled. Thanks to the fact that it's aluminum based it keeps the hard drive REALLY cool - during heavy use it is just a bit warmer than my hand.

I picked the Vydeo/Meritline eSATA card based on the "feature set /price" ratio and didn't really know what to expect because there is not as much written about it on the Internet as I'd like. Luckily there were no surprises so far.

The card is based on SiI3132 chipset and the driver supplied with the card is an unmodified Silicon Image driver (version 1.1.5). When I tried to install it however, it didn't work. But the one I got from Silicon Image support site worked fine (version 1.1.9). I had to restart my MBP to get MacOS X to recognize it though.



An interesting thing that I noticed is that when I copy stuff from the external drive to my internal drive (not the other way around), my computer gets sluggish. Particularly, all the operations that needed to access the internal drive became almost unusable because of slow responsiveness. I'm not sure if it's the internal drive getting overloaded with all the traffic, or something else, but it happens only in this one scenario (using loading data from the external drive to memory causes no problems).

The only other complaint I have about the card is that it is relatively easy to accidentally unplug. It is safe enough to use on a desk, but I don't even want to think about the data corruption caused by an accidental unplugging while using the computer on my lap.

I ran a few very unscientific benchmarks to see what to expect from my new toys. Here are the results.

  1. Copying my 13.22GB of mp3 files from the internal drive to the external drive:
    time cp -r ~/Music /Volumes/ExternalHDD/BackUp/
    8m29.645s = 26.5MB/s
    (Keep in mind that the internal drive is the bottleneck in this test, not the eSATA drive)

    I ran this test while in USB2.0 mode (the enclosure supports both eSATA and USB2.0) and the results were:
    16m8s = 14MB/s

    That makes the eSATA configuration 1.89x faster than the USB2.0 one.

  2. Copying 13.22GB of mp3 files from one folder on the internal drive to another one:
    time cp -r /Volumes/ExternalHDD/BackUp/Music/ /Volumes/ExternalHDD/
    7m1.298s = 32.2MB/s
    Considering that the files had to be read and then written to the drive, the number can be doubled to get the combined throughput. This makes it 64.4MB/s

  3. Creating a 10GB file using mkfile command and storing it on the external drive:
    time mkfile 10g /Volumes/ExternalHDD/10GB.file
    2m37.377s = 65.2MB/s

  4. Creating a 5GB dmg image file using Disk Utility and storing it on the external drive:
    1m17s = 66.5MB/s

  5. Encrypting a 5GB file stored on the external drive using openssl and storing the encrypted file on the external drive:
    time openssl enc -in /Volumes/ExternalHDD/5GB.file \
    -out /Volumes/ExternalHDD/5GB-encrypted.file -e -aes-128-cbc
    3m24.313s = 25.1MB/s
    Again, since I'm reading and storing the file on the same drive, the combined throughput is the double: 50.2MB/s.

    Since this is a test that is very close to the real world usage, I ran it with the disk connected via USB2.0. The results were:
    8m27.985s = 10.1MB/s or 20.2MB/s combined

    That makes the eSATA configuration 2.49x faster than the USB2.0 one.

  6. Copying a 5GB file from the external drive to the internal drive:
    time cp /Volumes/ExternalHDD/5GB-encrypted.file .
    2m39.271s = 32.3MB/s

  7. Copying a 5GB file from the external drive to the internal drive and at same time copying another 5GB file from the internal drive to the external drive:
    time cp 5GB-encrypted.file /Volumes/ExternalHDD/5GB-encrypted2.file&
    time cp /Volumes/ExternalHDD/5GB-encrypted.file .
    5m46.592s = 29.6MB/s (counting with 10GB of data being transferred )
    Again the internal drive is the bottleneck in this test.

Looking at these numbers I'm pretty happy with my purchase. Not a bad outcome for little less than $300 total.