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+ - Audio Pioneer Ray Dolby Of "Surround Sound" Fame Dies Aged 80->

Submitted by dryriver
dryriver (1010635) writes "Mr Dolby was born in Portland, Oregon, and grew up in the San Francisco area. He began his career in the Ampex Corporation, helping to develop early videotape recording systems while he was still a student. He then went on to complete his PhD at Cambridge University in England and in 1965 founded Dolby Laboratories in London. The company grew to be an industry leader in audio technology, cutting background hiss in tape recordings and later bringing out "surround sound". Mr Dolby moved his company to San Francisco in 1976 and in 1989 was awarded an Oscar for his contributions to cinema. He shared the award with Dolby executive Ioan Allen. He also received a Grammy award in 1995 and Emmy awards in 1989 and 2005. Mr Dolby's son, filmmaker and novelist Tom Dolby, said: "Though he was an engineer at heart, my father's achievements in technology grew out of a love of music and the arts. "He brought his appreciation of the artistic process to all of his work in film and audio recording." Neil Portnow, president of the Recording Academy, which hands out the Grammy Awards, said Mr Dolby's innovations had "changed the way we listen to music and movies for nearly 50 years". "His technologies have become an essential part of the creative process for recording artists and filmmakers, ensuring his remarkable legacy for generations to come," he added."
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Comment: Broadcast intercom? (Score 1) 448

by darkjedi521 (#40305133) Attached to: Ask Slashdot: Best Headphones, Earbuds, Earphones?
If you're looking to do broadcast quality, you're not going to find anything acceptable anywhere near your price point. And headsets intended for intercom usage tend to be mono. I've worn many a pair of Telex, Clearcom, and Production Intercom headsets. Their fairly decent at killing external noise, but for a decent double ear pair (mono) with a quality mic, you're looking at $200 - $300 for a pair. Of course, we might have two different definitions of broadcast quality. Mine is "needs to be intelligible to stage crew regardless of what other ambient noise is going on/plays nice with professional PA systems".

Comment: Two parts to your problem (Score 1) 120

You have two parts to your problem. Playing the actual audio files, and controlling when they will be played. There are many, many FOSS solutions for getting audio out of a PC with multitrack cards. Where things get messy is the control interfaces. Its going to be hard to find an interface that will do what you want for your price point. On the other hand, there are plenty of inexpensive (

Check out Richmond Sound Design's offerings. They have a fairly robust audio and show control engine that can handle a large number of channels of both prerecorded and live audio, and can be controlled by a variety of free (as in beer), free (as in speech), and proprietary interfaces, both locally and over the network, along with things like MIDI.

A second option, that may or may not work (it will support the hardware but possibly not the use case) is Show Cue Systems . I've used this one for running lights/video/sound fx for musicals.

Biotech

Scientists Clone Sheep With 'Good' Fat 233

Posted by Soulskill
from the pulling-the-wool-over-your-stomach's-eyes dept.
redletterdave writes "Chinese scientists have cloned a genetically modified sheep containing a 'good' type of fat found naturally in nuts, seeds, fish and leafy greens that helps reduce the risk of heart attacks and cardiovascular disease. The gene, which is linked to the production of polyunsaturated fatty acids, was inserted into a donor cell taken from the ear of a Chinese Merino sheep. The cell was then inserted into an unfertilized egg and implanted into the womb of a surrogate sheep. With any luck, this process could be replicated in the future to clone more animals for safe and healthy consumption."

Comment: Re:Alternative copyright stuff.. (Score 1) 150

by darkjedi521 (#38361684) Attached to: Two Lost <em>Doctor Who</em> Episodes Found
Computer programs obviously do not have an analog equivalent (unless you wanted a hard copy of the source and assets). For the other two, both are extremely simple - the audio in both cases is merely the actual waveform either etched into the groove or printed on the film. A phonograph can be played back with a sewing needle stuck into the bottom of a paper cup and spun by hand (you won't get more than 1 or two plays before destroying the record, but that's not the point). For film, shine a light through, hook up a solar cell, connect to an amp. You will get audio. For both, playback speed can be stored on the media (33 1/3 RPM, 18 in/s respectively) in human readable form. I'd prefer the digital copies, but I like the idea of having the older media shoved in a climate controlled vault, to hopefully never be used.

Comment: Re:Alternative copyright stuff.. (Score 1) 150

by darkjedi521 (#38350838) Attached to: Two Lost <em>Doctor Who</em> Episodes Found

I was implying I wanted one of each - a copy of the work in its preferred analog or digital form, and a secondary copy in the other form at the highest quality conversion now available for future proofing - see NASA's issues when they found the moon landing tapes but didn't have a player that could play them. I choose film and phonograph because they are so simple to play back that no esoteric knowledge such as how vertical helix scan works or just what the heck side scan was is needed to recover information.

So, for example - for a new album, I'd want a copy of the digital masters, and a record. 2 copies, different formats. One is ideal for duplication, playback, and distribution, the other is proof against codecs, knowledge, or hardware being lost

Comment: Re:Alternative copyright stuff.. (Score 1) 150

by darkjedi521 (#38349050) Attached to: Two Lost <em>Doctor Who</em> Episodes Found
You might as well include an high quality analog copy too for mediums where that is possible and makes sense - 35 or 70mm for film, master quality phonograph for audio, bound copy for ebooks - this way if the player becomes obsolete or suffers bit rot, there will be a trivial to recover analog copy to fill in the missing gaps.

Comment: Live CD (Score 1) 387

by darkjedi521 (#38300180) Attached to: Ask Slashdot: Ubuntu Lockdown Options?

Use a live CD. 10 years ago when I was a Freshman at RPI, everyone taking Calculus 1 or 2 had to take this online Gateway exam which then set the ceiling on your course grade. (A C on Gateway meant you could not earn better than a C in the course, but an A would not change your C average one bit).

To administer the exam, the CS department sysadmin made a FreeBSD 4.x live CD that had Netscape 4.x as the sole application launched via Xinit with no window manager. Quitting Netscape triggered the shutdown process and ejected the CD. I don't remember the rest of the details about how they prevented Internet usage, I have a sneaky suspicion they messed with the DNS servers and routing tables so it was nearly impossible to go to a site other than the browser home page.

Given the advancements in Live CD technology in last 11-12 years, it should not be hard to make an Ubuntu or Knoppix or Gentoo LiveCD that boots and has your app as the only app on the CD, thus satisfying the rules of no modifications to the testing computers and not allowing outside resources to the test takers.

Comment: How does it parallelize? (Score 4, Informative) 205

by darkjedi521 (#38251170) Attached to: Ask Slashdot: Parallel Cluster In a Box?

How does the app parallelize? Is each process/thread dependent on every other process/thread or is it a 1000 processes flying in close formation that all need to complete at the same time but don't interact with each other? How embarrassingly parallel is embarrassingly parallel? Is that 512MB requirement per process or the sum of all processes?

GPUs might not be the right solution for this. GPUs are excellent for parallelizing some operations but not others. Have you done any benchmarks? Throwing lots of CPU at the problem may be the right solution depending on the algorithms used and how well they can be adapted for a GPU, if they can be adapted for a GPU.

For the $10K-$15K USD range, I'd look at Supermicro's offerings. You have options ranging from dual socket 16 core AMD systems with 2 Teslas to quad socket AMD systems to quad socket Intel solutions to dual socket Intel systems with 4 Tesla cards.

Do some testing of your code in various configurations before blindly throwing hardware at the problem. I support researchers who run molecular dynamics simulations. I've put together some GPU systems and after testing, it was discovered that for the calculations they are doing, the portions that could be offloaded to their code only accounted for at most 10% of the execution time, with the remainder being operations that the software packages could only do on CPU.

Comment: Not doable (Score 1) 264

by darkjedi521 (#37406800) Attached to: Ask Slashdot: Clusters On the Cheap?

Assuming a 1.5 to 1 correspondence with the USD, you're either getting a decent cpu box and no storage, or a reasonable amount of storage and no CPU. I build/run supercomputing clusters for molecular dynamics simulations at an university in upstate New York, and I wouldn't even consider attempting a cluster for less than $25,000.

Since the OP didn't specify if this was massively parallel or not, I'm going to assume this is so I can use AMD chips for cheapness.

First off, storage. Computational output adds up quick. You're looking at $7,000 USD for 24TB raw storage from the likes of IBM or HP or Dell. Yes, you can whitebox it for cheaper, but considering if you lose this box, nothing else matters (And I doubt you have the funds for proper backups), it pays to get hardware that's been tested and is from a vendor you can scream at when it breaks.

Second, interconnect. A cheap netgear will work, but reasonable internode communication is not cheap, especially if moving largish amounts of data. This could run $1000 to $3000

Finally, the compute hardware itself. A decent node will run $3000 to $5000 depending on the core count, socket count, GHz, and to a lesser extent RAM.

Assuming you want 128 cores, you're looking at 8 machines for compute ($32,000 right there assuming $4K/node, and dual 8 core chips), plus another $7K for the file server/landing pad, and finally add $1500 for a decent switch that can let those nodes talk to each other at line speed and allow room for future growth. Total cost: $40,500 USD or 27,000 pounds assuming the 1 pound:1.5 USD ratio.

Comment: Re:Nuke power (Score 2) 483

by darkjedi521 (#36133572) Attached to: Japan Widens Evacuation Zone Around Fukushima
A natural gas plant in CT blew up a year ago due to improper purging of the gas lines during testing. Managed to rattle windows 30 miles away and if I remember correcltly, it registered as a 2 or 3 on the nearest seismograph. http://www.reuters.com/article/2010/02/07/us-energy-explosion-idUSTRE61619Q20100207

Comment: Break out the calculator and spreadsheet (Score 3, Informative) 260

by darkjedi521 (#31128654) Attached to: UPS Setup For a Small/Mid-Size Company?

Its time to break out the calculators and do some math. There are two main factors at work here, UPS load capacity and battery run time. I run a series of research clusters at a university, so only the core systems (landing pads, schedulers, auth, disk arrays) are on UPS and all the compute nodes just die at a power hit.

Retrofitting a datacenter for whole center UPS is a very daunting and expensive task, so odds are good you'll be replacing the current rack mounts with beefier units, either pedestal sized units next to their racks or rack mounted units.

When buying UPS gear for work, I aim to hit either 67% capacity with the planned load, or the smallest VA rating that takes 208V single phase, as long as its at least 1/3 under utilized for future expansion. That covers the VA rating. As for battery run time, most of the larger units accept external battery packs to increase the run time. I've never used them, since a 5KVA unit with my load gives me 20 minutes of run time, and if the power isn't back on by then, odds are good its not coming back any time soon.

Another option for extending UPS run time is to prioritize services/VMs. With the appropriate monitoring software on each host, you can configure each host to shutdown when the UPS estimates X minutes of battery time remaining or there have been Y minutes on battery, or both. Less load, more run time for the really important stuff. Almost every UPS I've used (APC, Tripp-lite, Powerware) comes with off the shelf software or there are opensource solutions (apcupsd, nut) for monitoring the UPS over serial, USB, or SNMP (Options vary with mfg and model). My shutdown schedule is: after 5 minutes on battery, power down the compute cluster landing pads. With 10 minutes remaining, power down the file servers with the archival data on them. With 6 minutes remaining, power down the primary file servers. With 2 minutes remaining, power down the auth box/network monitor/iLom control host (This is the only one that can't get powered on/monitored remotely).

Let's organize this thing and take all the fun out of it.

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