My newly built cabinet:
November 20, 2004
Using the OS X Audio Check application, I was able to play various frequencies at different volumes. I determined that I am able to hear up to 18,200Khz at 0dbv (approximately 100db). The normal human hearing range is is 20hz – 20,000khz for perfect ears. Considering that I’m 35 and have been in noisy orchestra pits for my whole career, and that I use my ears in my job all the time, not to mention that I have noisy hobbies like woodworking and flying small aircraft, I’m very happy with this performance. Maybe I should do an informal recheck every year?
Note: if you decide to use this software to check your hearing, make sure your speakers are up to the task. My cheap little Harman/Kardon computer speakers can’t reproduce anything above 16,000Khz. My professional JBL studio monitors handle everything up to 20,000Khz.
More about hearing here.
Erin and I have decided to drop AT&T as our cellphone carrier. We’re looking at upgrading phones and downgrading plans. Currently, we spend $100/month for both phones. We each have 400 minutes anytime, and free nights/weekends (starting at 8pm). Basic Nokia phones.
T-Mobile is offering a “family plan” where we will share 400 anytime minutes with free nights/weekends/holidays, but any calls to each other or to any other T-mobile customer are free. As 80% of my cell calls are to her, we think this will be fine. The phones are much better too. We’re each getting one of these. They take pictures, vibrate, color screen, limited internet, mp3 ringtones, etc, etc, etc, etc. The phones cost $50 after rebate and the plan only costs $49. I’ll be dropping my home office number and porting it over to the cellphone, so even though the phone purchases and account activations are costing us $170, we’re saving $70 per month.
Oh, and once this is all squared away, we’ll probably switch our normal home phone to Vonage. We should see a $20/month or so in savings. All told, we’ll be saving over a thousand dollars per year, and getting better service and better phones. Take that AT&T.
Talking with the T-mobile guy at Fry’s, he said that he doesn’t even have a home phone and the legacy POTS companies are running scared.
Weird. I bought $9 of music through iTunes four days ago, and am just now getting the invoice via email. You’d think there would be less of a lag time between buy and invoice. Wonder why?
“The UK National Physical Laboratory has a new atomic clock potentially 1000 times more accurate than current cesium clocks: to within 1 second in about 30 billion years! This could lead quite soon to a new definition of the second, and in a while to improved resolution in GPS successor systems. More interestingly, there are theories that some of the universe’s fundamental dimensionless constants may have changed by a parts in a million over the last 10 billion years or so. These clocks are so accurate that they should be able to detect these changes over a year.”
Talking with Erin today in the kitchen. Movement out of the corner of my eye. A mouse about 6″ long (not including tail). He got into our birdseed and hid behind the fridge. Got the traps out. Erin’s not too happy with inhumane traps, but likes the thought of a mouse chewing on her toes even less.