According to the CIA world factbook the current U.S. death rate is 8.34 / 1000. http://www.cia.gov/cia/publications/factbook/geos/ us.html
So for the 293 million people in the U.S. that's 2.44 million deaths. So if 1 in 4023 of these are due to plane crashes that's 607. Sounds about right.
You might want to consider that one is not likely to see anywhere near peak power consumption. That would require the memory controller and all of the processing units (multiple AltiVec units, multiple ld/st units, multiple integer units, and multiple fp units) to be active. The units that aren't used for awhile (order of a few seconds) are turned off and don't draw power. It's a nice feature.
Stereo as broadcast over FM is sum and difference, however a CD is interleaved left and right. I'm not making an assumption. I worked on an audio project a year ago. The measured correlation between the two channels for the audio tracks used on the project ranged from 85% to 95%, and this was before accounting for the time and phase delays. This, along with the fact that music rarely takes up the full dynamic range all of the time (pieces are composed of loud segments and quieter ones), would allow for much better lossless compression than is currently available. Unfortunately not much algorthmic research has been done in this area.
To quickly assess how well the new iTunes 4.5 lossless compression scheme works I picked 10 songs at random from my collection to convert to Apple Lossless Encoder format. The good news is that each song only took a few seconds to convert on my 1.0 GHz PowerBook. Noticeably faster than when I ripped them to WAV files. Unfortunately the compression ratio is not that good. The aggregate compression ratio of the ten songs was 1.5:1. The min, median and max were 1.3:1, 1.5:1 and 1.8:1. This is by no means a thorough evaluation, as my collection is heavily skewed to rock music and far more samples would be required. I would have expected far better however, given that the high correlation between the two stereo channels gives an almost brain dead 2:1 compression to start with, and other lossless projects on the web claim closer to 4:1.
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According to the CIA world factbook the current U.S. death rate is 8.34 / 1000. http://www.cia.gov/cia/publications/factbook/geos/ us.html
So for the 293 million people in the U.S. that's 2.44 million deaths. So if 1 in 4023 of these are due to plane crashes that's 607. Sounds about right.
You might want to consider that one is not likely to see anywhere near peak power consumption. That would require the memory controller and all of the processing units (multiple AltiVec units, multiple ld/st units, multiple integer units, and multiple fp units) to be active. The units that aren't used for awhile (order of a few seconds) are turned off and don't draw power. It's a nice feature.
Stereo as broadcast over FM is sum and difference, however a CD is interleaved left and right. I'm not making an assumption. I worked on an audio project a year ago. The measured correlation between the two channels for the audio tracks used on the project ranged from 85% to 95%, and this was before accounting for the time and phase delays. This, along with the fact that music rarely takes up the full dynamic range all of the time (pieces are composed of loud segments and quieter ones), would allow for much better lossless compression than is currently available. Unfortunately not much algorthmic research has been done in this area.
To quickly assess how well the new iTunes 4.5 lossless compression scheme works I picked 10 songs at random from my collection to convert to Apple Lossless Encoder format. The good news is that each song only took a few seconds to convert on my 1.0 GHz PowerBook. Noticeably faster than when I ripped them to WAV files. Unfortunately the compression ratio is not that good. The aggregate compression ratio of the ten songs was 1.5:1. The min, median and max were 1.3:1, 1.5:1 and 1.8:1. This is by no means a thorough evaluation, as my collection is heavily skewed to rock music and far more samples would be required. I would have expected far better however, given that the high correlation between the two stereo channels gives an almost brain dead 2:1 compression to start with, and other lossless projects on the web claim closer to 4:1.