Technology – Page 12

iPhone/iPod EQ distortion and clipping

All iPhones and iPods these days have a feature called Sound Check. It scans all your music files and sets the playback volume so that they are all roughly the same level. iPhone/iPods also have an equaliser (EQ) function which lets you modify the sound of your music by boosting the bass, treble, and so forth. Both these features by themselves work well, but when combined with today’s music it will cause issues with how your music sounds. Why? A lot of music nowadays are mastered to be as loud as possible, thus reducing the dynamic range and possibly introducing some […]

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VM disconnects after vMotion

We’ve been having this weird problem for a while where if sitting idle for a day or two, a VM would disconnect from the network and otherwise be unavailable until after a few minutes if you try to vMotion it. But after you reboot it, it worked fine. Networking checked out. Storage checked out. What could be wrong?? Turned out the culprit was memory overcommitment on our ESX servers. Who would have thought! We had more memory allocated to VMs than there was physical memory, even though the green memory indicator said otherwise. A bit of background as to why

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Suspending Windows 7 in VMware Fusion

When running Windows 7 as a virtual machine under VMware Fusion, you have the option of Sleeping or Hibernating from within Windows, or suspending the VM from Fusion. All the methods ultimately serve the same purpose but achieve it’s goals differently. Sleeping and Suspending were very quick and I suspect invokes the same function, as in VMware Tools calls the Sleep function from within the OS. Contents in memory are held there and the VM is frozen in it’s current state. Hibernation on the other hand dumps everything from memory into a file within Windows, then halts the system, where

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An iPhone users guide to the Telstra NextG network

Updated 30/01/2012 The Telstra NextG network is undoubtedly the largest and highest performing cellular mobile network in Australia, which makes it a perfect pair with your iPhone. This article aims to give you a through rundown of things you need to know to make use of this network. After all you are paying an arm and a leg for it! Network Selection By default the Carrier selection will be set to Automatic. There are 4 networks to choose from. Telstra Mobile, 3TELSTRA, YES OPTUS, and vodafone AU. 3TELSTRA is the joint 3 and Telstra network operating on the 2100 MHz

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How to quickly drain your Macs battery

Firstly why would you do this? The simple answer is when calibrating your battery, the last thing you want to do is sit around waiting for your battery to drain normally. This procedures accelerates the process. There are a number of ways to drain your Macs battery such as playing a game, or watching a DVD. But I have found a quicker way to do it which doesn’t require you to be at your computer. Just open up one terminal per processor core and run this in it: yes > /dev/null Don’t run it without the /dev/null otherwise it will

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