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Space

Stephen Hawking and Russian Billionaire Start $100 Million Search For Aliens 208

An anonymous reader writes: Stephen Hawking is joining forces with Russian billionaire Yuri Milner to start a $100 million effort to search the skies for signs of alien life. The initiative is called Breakthrough Listen, which will pay for large amounts of access to the Green Bank Telescope and the Parkes Telescope to scan the skies for signals over the next 10 years. They say the search will be 50 times more sensitive than previous attempts, cover 10 times more of the sky, and scan a greater portion of the radio spectrum 100x faster. They add, "All data will be open to the public. This will likely constitute the largest amount of scientific data ever made available to the public. The Breakthrough Listen team will use and develop the most powerful software for sifting and searching this flood of data. All software will be open source." The project is also supported by Frank Drake, Ann Druyan, and Lord Martin Rees.

Comment Re:Worst? Heh (Score 1) 574

JPEG was only an analogy - editing and effects introduce artifiacts is the point. The noise floor drops directly from the higher bit depth and it better handles effects added, but you also get noise/junk audio when you layer multiple audio streams (drums, guitar, vocals, etc) and try to combine them into one waveform. That is improved by having the higher sampling rate - Nyquist has nothing to do with this. If it wasn't an improvement, then no engineer would waste the disk space recording at a higher sampling rate when the final output is only CD quality.

Comment Re:Worst? Heh (Score 1) 574

Digital studio equipment records in and keeps audio in a format at a higher bit-depth AND sample rate. Every edit and every layer of multiple tracks is like resaving a lossy jpeg. Your final result may contain all those extra bits, but they need to be averaged out and resampled away because the detail is already lost by that point. That's why you record in 192KHz / 24-bit and then master to 44.1KHz / 16-bit. GP post is 100% correct.

The noise floor they are talking about is introduced by the editing - not inherent to the recording.

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