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  • The perfect crossfade

    - by epologee
    I find it hard to describe this problem in words, which is why I made a video (45 seconds) to illustrate it. Here's a preview of the questions, please have a look at it on Vimeo: http://vimeo.com/epologee/perfect-crossfade The issue of creating a flawless crossfade or dissolve of two images or shapes has been recurring to me in a number of fields over the last decade. First in video editing, then in Flash animation and now in iOS programming. When you start googling it, there are many workarounds to be found, but I really want to solve this without a hack this time. The summary: What is the name of the technique or curve to apply in crossfading two semi-transparent, same-colored bitmaps, if you want the resulting transparency to match the original of either one? Is there a (mathematical) function to calculate the neccessary partial transparency/alpha values during the fade? Are there programming languages that have these functions as a preset, similar to the ease in, ease out or ease in out functions found in ActionScript or Cocoa?

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  • ImportError: No module named gtk

    - by Rick_2047
    after the debacle a few hours back I managed to get a working desktop after using an ethernet cable and sudo apt-get install ubuntu-desktop But now when I try to run ubuntu software center from CLI this is what I get rick@Abigail:~$ sudo software-center Traceback (most recent call last): File "/usr/bin/software-center", line 34, in <module> import gtk ImportError: No module named gtk Any guesses how to fix this. The search box on synaptic is also missing. It has something to do with module named axi. I think the both are related.

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  • Terminal as desktop background instead of wallper

    - by Janis Erdmanis
    I have come to conclusion that all my needs from nautilus is satisfied with terminal and last file manager. It also dismisses the need for multiple nautilus instances, which makes mess when I forgot how I meant to use different workspaces. The next step for my simplification would be to get rid of any possibility to open nautilus. Also I thought that my interaction with computer is file centred, therefore it makes sense to leave file manager in background of applications. Are there any ways to make terminal as desktop background with which I could interact?

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  • Python or HTML5/JS for game development on 2014 [on hold]

    - by AlexKvazos
    So I've decided to give game development a go. I have experience on php/html/css/sql/js(jquery) so learning a new language shouldn't be as hard. I was reading that python and javascript are both nice for simple 2d non-intensive games. I found that python has this library/engine called PyGame but I realized that it was last updated 4 years ago. People still use this? And for javascript, I found libraries like 'pixi.js', 'melon.js' and 'cocos2d'. My goal is to make 2D games that would require the same performance as terraria, realm of the mad god, castle crashers.. and all those types of games. Taking into consideration, that I do want an updated library, what language of this two would be best to choose and what library to grab for it? Thanks in advance, sorry if question is broad. Let me know and I can edit to add more.

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  • Software Architecture - From design to sucessful implementation

    - by user20358
    As the subject goes; once a software architect puts down the high level design and approach to a software that is to be developed from scratch, how does the team ensure that it is implemented successfully? To my mind the following things will need to be done Proper understanding of requirements Setting down coding practices and guidelines Regular code reviews to ensure the guidelines are being adhered to Revisiting the requirements phase and making necessary changes to design based on client inputs if there are any changes to requirements Proper documentation of what is being done in code Proper documentation of requirements and changes to them Last but not the least, implementing the design via object oriented code where appropriate Did I miss anything? Would love to hear any mistakes that you have learned from in your project experiences. What went wrong, what could have been done better. Thanks for taking the time..

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  • Is it risky to install KDE on Ubuntu alongside Unity and Gnome?

    - by Vagrant232
    The last time I installed KDE and Gnome on the same OS (Opensuse 12.1), GDM and KDM started conflicting and they both stopped working properly and I was plagued with applications from both environments till the point the applications overview in gnome was flooded with useless KDE trash. Moreover, I still had parts of the KDE desktop appearing when I'm running Gnome (such as the password manager and kde fonts and some apps refused to give up the oxygen theme). If I install the plasma-desktop package on Ubuntu, am I at risk of having such issues? I just want KDE with the bare minimum number of applications; just the necessary ones to make things work. I'd rather not have dolphin installed either. Also, is it all right to install the kde-standard pack? Or should I just stick to the plasma-desktop pack?

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  • find second smallest element in Fibonacci Heap

    - by Longeyes
    I need to describe an algorithm that finds the second smallest element in a Fibonacci-Heap using the Operations: Insert, ExtractMin, DecreaseKey and GetMin. The last one is an algorithm previously implemented to find and return the smallest element of the heap. I thought I'd start by extracting the minimum, which results in its children becoming roots. I could then use GetMin to find the second smallest element. But it seems to me that I'm overlooking other cases because I don't know when to use Insert and DecreaseKey, and the way the question is phrased seems to suggest I should need them.

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  • This 24 Hours of PASS was "Different"

    - by RickHeiges
    Last week, the latest iteration of "24 Hours of PASS" was held. It was "Different" for me. Why? Because I was not an active participant on the days of the event other than being an attendee. I was involved in some aspects of the planning for the event when deciding the theme and format, etc. I was on many calls and email threads for the planning of this event. I did the moderator/speaker training a few weeks prior to the event. But on the days that the event was actually held, I was not on pins and...(read more)

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  • Geek Deal: Refurbished Kindle Fire for $139; Today Only

    - by Jason Fitzpatrick
    If you’re looking to pick up a Kindle Fire on the cheap, Amazon is offering them–refurbished with a 1-year warranty–for $139. $139 is an even better price than we see on our local Craiglist (where Kindle Fires usually go for $180 or so) and it comes with a 1-year warranty. We’ve purchased several Kindle Keyboard units through Amazon’s refurbished warehouse deals over the last two years and, frankly, we can’t tell them apart from the brand new ones–if you’re looking to pick up a Kindle Fire this is a great deal. Kindle Fire for $139 How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS

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  • Faulty memtest result

    - by dhojgaard
    I've been a bit suspicious about my RAM lately. They seem not work like i expect them to. For instance i run a lot of Virtual Test Environments in VMware Workstation and lately Ubuntu starts to lag just running 4 virtual machines each dedicated 512 MB. BTW im having 6GB memory on my laptop. This did not use to be a problem for me on my last laptop that even had a lot lower CPU resources. So i was led to try a memtest after reading some websites about RAM testing. So i did a memtest overnight but when i woke up this morning i was just looping and i could not Exit or do anything. It was just looping the number of errors besides test 7 which you can see in the lower right part of the screenshot. Can anyone interpret this screenshot for me? Do i have a faulty set of RAMs?

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  • Fails to boot after upgrade, stuck on winbind package

    - by Praetorian
    I started the upgrade from 11.04 to 11.10 last night. Once it got the installing packages part I left the computer unattended the rest of the night. When I checked it this morning the screen was blank and I couldn't get it to turn on. So I cycled power, and now I get the "Ubuntu 11.10" screen with the dots underneath, but then it gets to a blank screen and nothing more. I can get to the command line in recovery mode; here's a list of the things I've tried so far sudo apt-get update - the very first repository it checked sat at 0% for a long time (network cable is plugged in), so I cancelled with Ctrl+C Thought it might be a problem with display drivers, so I tried sudo apt-get install nvidia-glx - this gave me an error saying dpkg has been interrupted, manually run sudo dpkg --configure -a sudo dpkg --configure -a this installed / updated a bunch of stuff but got stuck at Starting Winbind daemon winbind Restarted and tried sudo dpkg --configure -a again but it gets stuck at same Windbind step What else can I do to fix this problem?

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  • How do I add text to an animated .gif in gimp?

    - by Carla
    I have just worked out how to create an animated.gif in gimp but I am having a problem adding text. When I create/add the text box and then save my.gif and view it, the text only flashes up over one frame/layer. How do I make the text last over the entire duration of the animated.gif? If you could explain in very simple terms, with the easiest solution, that would be wonderful as I am quite new to all this and very unsure of what I am doing! Thank you for any help you can give.

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  • Think Global, Act Regional with Identity Globe Trotters

    - by Tanu Sood
    This month we will be introducing a new section on our blog. Titled “Identity Globe Trotters”, this will be a monthly series that would feature a regional topic the last Friday of every month. We would invite guest contributors from different regions to highlight a region-specific business issue, solution, highlight a customer implementation or a regional discussion of interest. If you have an Identity management topic in mind that you’d like featured in this section, do let us know. We look forward to engaging in meaningful discussions with you on global perspectives, regional solutions.

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  • file copy error from system to cifs mount

    - by dwpriest
    When coping a file greater than 64kB from an Ubuntu server to a CIFS mounted windows share, most of the data is copied, but it seems the last chunk doesn't get copied. The size doesn't match, and the md5 check sums don't match. I have plenty of file space, but then I use cp, I get the following... cp: closing `cloudBackup/asdf.txt': No space left on device Using rsync, I get the following... rsync: close failed on "/home/fluffy/cloudBackup/.asdf.txt.qrBWe6": No space left on device (28) rsync error: error in file IO (code 11) at receiver.c(752) [receiver=3.0.8] rsync: connection unexpectedly closed (29 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(601) [sender=3.0.8] I have full read/write permissions on the mounted share. I can copy locally and between the mount and system via SSH just fine. Any ideas? Thank you

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  • genisoimage and exec bit preservation

    - by user92187
    Maybe I'm just not doing right, but I can't seem to get genisoimage to produce a UDF image and preserve the exec bit. $ genisoimage --version genisoimage 1.1.11 (Linux) $ echo "echo 'Hello world'" > script.sh $ chmod +x script.sh $ ./script.sh Hello world $ genisoimage -input-charset utf-8 -r -udf -volid minimal -o minimal.iso script.sh Total translation table size: 0 Total rockridge attributes bytes: 250 Total directory bytes: 0 Path table size(bytes): 10 Max brk space used 0 420 extents written (0 MB) $ mkdir mount $ sudo mount minimal.iso $PWD/mount -o ro,loop -t udf $ ls -l script.sh mount/script.sh -r--r--r-- 1 root root 19 Sep 21 18:40 mount/script.sh -rwxrwxr-x 1 kip kip 19 Sep 21 18:40 script.sh You'll note in the last command that script.sh was executable at the time it was injected into the image, but does not appear to be inside of the mounted image. Is this a bug in genisoimage, a problem with the way I am mounting the image, or a problem in my usage of genisoimage?

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  • Permanent redirect to different domain followed by temporary redirect to folder

    - by Ricardo Amaral
    I have old-domain.com which I want to migrate to new-domain.com. However, the content on the old domain is, well, old. And I'm currently in the process of redesigning my whole site. My idea is to do a permanent (301) redirect from old-domain.com to new-domain.com so that search engines know about the new domain and forget about the old one. But since the content is old I was thinking to do a temporary (302) redirect from new-domain.com to new-domain.com/old/ until the new content/site is ready to be published. Is this, for some reason, a bad idea? Or there's nothing wrong with it? One last thing... If I go with this, what should I do when the new content is ready? Should I just remove the 302 redirect and that's it, or should I do something else to notify search engines that the temporary redirect is over?

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  • Why is there a "new" in Go?

    - by dystroy
    I'm still puzzled as why we have new in Go. When you want to instantiate a struct, you do t := Thing{} and, obviously, you can get a pointer to a new instance by doing t := &Thing{} But there's also this possibility : t := new(Thing) This last one seems a little alien to me. &Thing{} is as clear and concise as new(Thing) and it uses only constructs you often use elsewhere. It's also more extensible as you might change it to &Thing{3} or &Thing{Feets:7}. In my opinion, having a supplementary keyword is costly, it makes the language more complex and adds to what you must know. And it might mask to newcomers what's behind instantiating a struct. It also makes one more reserved word. So what's the reasoning behind new ? Is it something useful ? Should we use it ?

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  • Oracle Key Vault Sneak Peek at NYOUG

    - by Troy Kitch
    The New York Oracle Users Group will get a sneak peek of Oracle Key Vault on Tuesday, June 3, by Todd Bottger, Senior Principal Product Manager, Oracle. If you recall, Oracle Key Vault made its first appearance at last year's Oracle OpenWorld in San Francisco within the session "Introducing Oracle Key Vault: Enterprise Database Encryption Key Management." You can catch Todd's talk from 9:30 to 10:30 am. Session Abstract With many global regulations calling for data encryption, centralized and secure key management has become a need for most organizations. This session introduces Oracle Key Vault for centrally managing encryption keys, wallets, and passwords for databases and other enterprise servers. Oracle Key Vault enables large-scale deployments of Oracle Advanced Security’s Transparent Data Encryption feature and secure sharing of keys between Oracle Real Application Clusters (Oracle RAC), Oracle Active Data Guard, and Oracle GoldenGate deployments. With support for industry standards such as OASIS KMIP and PKCS #11, Oracle Key Vault can centrally manage keys and passwords for other endpoints in your organization and provide greater reliability, availability, and security. 

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  • Gamification = -10#/3mo

    - by erikanollwebb
    One of the purposes of gamification of anything is to see if you can modify the behavior of the user. In the enterprise, that might mean getting sales people to enter more information into a CRM system, encouraging employees to update their HR records, motivating people to participate in forums and discussions, or process invoices more quickly.  Wikipedia defines behavior modification as "the traditional term for the use of empirically demonstrated behavior change techniques to increase or decrease the frequency of behaviors, such as altering an individual's behaviors and reactions to stimuli through positive and negative reinforcement of adaptive behavior and/or the reduction of behavior through its extinction, punishment and/or satiation."  Gamification is just a way to modify someone's behavior using game mechanics. And the magic question is always whether it works. So I thought I would present my own little experiment from the last few months.  This spring, I upgraded to a Samsung Galaxy 4.  It's a pretty sweet phone in many ways, but one of the little extras I discovered was a built in app called S Health. S Health is an app that you can use to track calories, weight, exercise and it has a built in pedometer. I looked at it when I got the phone, but assumed you had to turn it on to use it so I didn't look at it much.  But sometime in July, I realized that in fact, it just ran in the background and was quietly tracking my steps, with a goal of 10,000 per day.  10,000 steps per day is this magic number recommended by the Surgeon General and the American Heart Association.  Dr. Oz pushes it as the goal for daily exercise.  It's about 5 miles of walking. I'm generally not the kind of person who always has my phone with me.  I leave it in my purse and pull it out when I need it.  But then I realized that meant I wasn't getting a good measure of my steps.  I decided to do a little experiment, and carry it with me as much as possible for a week.  That's when I discovered the gamification that changed my life over the last 3 months.  When I hit 10,000 steps, the app jingled out a little "success!" tune and I got a badge.  I was hooked.  I started carrying my phone.  I started making sure I had shoes I could walk in with me.  I started walking at lunch time, because I realized how often I sat at my desk for 8-10 hours every day without moving.  I started pestering my husband to walk with me after work because I hadn't hit my 10,000 yet, leading him at one point to say "I'm not as much a slave to that badge as you are!"  I started looking at parking lots differently.  Can't get a space up close?  No worries, just that many steps toward my 10,000.  I even tried to see if there was a second power user level at 15,000 or 20,000 (*sadly, no).  If I was close at the end of the day, I have done laps around my house until I got my badge.  I have walked around the block one more time to get my badge.  I have mentally chastised myself when I forgot to put my phone in my pocket because I don't know how many steps I got.  The badge below I got when my boss and I were in New York City and we walked around the block of our hotel just to watch the badge pop up. There are a bunch of tools out on the market now that have similar ideas for helping you to track your exercise, make it social.  There are apps (my favorite is still Zombies, Run!).  You could buy a FitBit or UP by Jawbone.   Interactive fitness makes the Expresso stationary bike with built in video games.  All designed to help you be more aware of your activity and keep you engaged and motivated.  And the idea is to help you change your behavior. I know someone who would spend extra time and work hard on the Expresso because he had built up strategies for how to kill the most dragons while he was riding to get more points.  When the machine broke down, he didn't ride a different bike because it just wasn't that interesting. But for me, just the simple jingle and badge have been all I needed.  I admit, I still giggle gleefully when I hear the tune sing out from my pocket. After a few weeks, I noticed I had dropped a few pounds.  Not a lot, just 2-3.  But then I was really hooked.  I started making a point both to eat a little less and hit 10,000 steps as much as I could.  I bemoaned that during the floods in Boulder, I wasn't hitting my 10,000 steps.  And now, a few months later, I'm almost 10 lbs lighter. All for 1 badge a day. So yes, simple gamification can increase motivation and engagement.  And that can lead to changes in behavior.  Now the job is to apply that to the enterprise space in a meaningful and engaging way. 

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  • Do I deserve a promotion/higher salary?

    - by anonCoder
    I'm a software developer and have been working at my current employer for almost 2 years. I joined straight out of university, so this is my first real full-time job. I was employed as a junior developer with no real responsibilities. In the last year, I have been given more responsiibility. I am the official contact person at my company for a number of clients. I have represented the company by myself in off-site meetings with clients. My software development role has grown. I now have specialised knowledge in certain tools/products/technologies that no one else here does. My problem is that I am still officially a junior developer, and still earning less than I feel I am worth. Am I being taken advantage of? How long should I reasonably expect to stay a junior developer before I expect a promotion of some kind? What would you do in my situation?

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  • 81% of European Shoppers Willing to Pay More for Better Customer Experience

    - by Richard Lefebvre
    Customer Experience provides strategic driver for business growth Research released today from Oracle has revealed that customer experience is now a key driver for revenue growth in Europe, and an effective channel for brand differentiation in a globalized economy where products and services are increasingly commoditized. The research report, “Why Customer Satisfaction is No Longer Good Enough,” reveals that 81% of consumers surveyed are willing to pay more for superior customer experience. With nearly half (44%) willing to pay a premium of more than 5%. Improvement of the overall customer experience (40%), providing quick access to information and making it easier for customers to ask questions (35%) were cited as key drivers for spending more with a brand. The pan-European research, carried out in June 2012 by independent research company Loudhouse, surveyed 1400 online shoppers (50% female, 50% male) who had made a complaint or enquiry to a customer service department in the last 12 months. For full research findings please go to: http://bit.ly/UwmB3j or check the Press Release

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  • Data-tier Applications in SQL Server 2008 R2

    - by BuckWoody
    I had the privilege of presenting to the Adelaide SQL Server User Group in Australia last evening, and I covered the Data Access Component (DAC) and the Utility Control Point (UCP) from SQL Server 2008 R2. Here are some links from that presentation:   Whitepaper: http://msdn.microsoft.com/en-us/library/ff381683.aspx Tutorials: http://msdn.microsoft.com/en-us/library/ee210554(SQL.105).aspx From Visual Studio: http://msdn.microsoft.com/en-us/library/dd193245(VS.100).aspx Restrictions and capabilities by Edition: http://msdn.microsoft.com/en-us/library/cc645993(SQL.105).aspx    Glen Berry's Blog entry on scripts for UCP/DAC: http://www.sqlservercentral.com/blogs/glennberry/archive/2010/05/19/sql-server-utility-script-from-24-hours-of-pass.aspx    Objects supported by a DAC: http://msdn.microsoft.com/en-us/library/ee210549(SQL.105).aspx   Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • How Estimates Became Quotes

    - by Lee Brandt
    It’s our fault. Well, not completely, but we haven’t helped the situation any. All of what follows comes from my own experiences which, from talking to lots of other developers about it, seems to be pretty much par for the course. Where We Started When we first started estimating, we estimated pretty clearly. We would try to imagine something we’d done that was similar to the project being estimated and we’d toss it about in our heads a bit and see how much bigger or smaller we thought this new thing was, and add or subtract accordingly. We wouldn’t spend too much time on it, because we wanted to get to writing the software. Eventually, we’d come across some huge problem that there was now way we could’ve known about ahead of time. Either we didn’t see this thing or, we didn’t realize that this particular version of a problem would be so… problematic. We usually call this “not knowing what we don’t know”. It’s unavoidable. We just can’t know. Until we wade in and start putting some code together, there are just some things we won’t know… and some things we don’t even know that we don’t know. Y’know? So what happens? We go over budget. Project managers scream and dance the dance of the stressed-out project manager, and there is nothing we can do (or could’ve done) about it. We didn’t know. We thought about it for a bit and we didn’t see this herculean task sitting in the middle of our nice quiet project, and it has bitten us in the rear end. We now know how to handle this in the future, though. We will take some more time to pick around the requirements and discover all those things we don’t know. We’ll do some prototyping, we’ll read some blogs about similar projects, we’ll really grill the customer with questions during the requirements gathering phase. We’ll keeping asking “what else?” until the shove us down the stairs. We’ll take our time and uncover it all. We Learned, But Good The next time comes, and you know what happens? We do it. We grill the customer for weeks and prototype and read and research and we estimate everything down to the last button on the last form. Know what that gets us? It gets us three months of wasted time, and our estimate will still be off. Possibly off by a factor of four. WTF, mate? No way we could be surprised by something! We uncovered every particle. We turned every stone. How is it we still came across unknowns? Because we STILL didn’t know what we didn’t know. How could we? We didn’t know to ask. The worst part is, we’ve now convinced the product that this is NOT an estimate. It is a solid number based on massive research and an endless number of questions that they answered. There is absolutely now way you don’t know everything there is to know about this project now. No way there is anything you haven’t uncovered. And their faith in that “Esti-Quote” goes through the roof. When the project goes over this time, they might even begin to question whether or not you know what you’re doing. Who could blame them? You drilled them for weeks about every little thing, and when they complained about all the questions, you told them you wanted to uncover everything so there would be no surprises. SO we set them up to faile Guess, Then Plan We had a chance. At the beginning we could have just said, “That’s just a gut-feeling estimate, based on my past experience with similar projects. There could still be surprises.” If we spend SOME time doing SOME discovery and then bounce that against our own past experiences, we can come up with a fairly healthy estimate. We can then help the product owner understand that an estimate is a guess. Sure, it’s an educated guess, but it is still a guess. If we get it right it will be almost completely luck. Then, we help them to plan the development by taking that guess (yes, they still need the guess for planning purposes) and start measuring early and often to see if we still think we are right. We should adjust the estimate and alert the product owner as soon as we see problems (bad news does not age well) and we should be able to see any problems immediately if we are constantly measuring our pace. In lean software, we start with that guess and begin measuring cycle times immediately. Then we can make projections based on those cycle times and compare them to our estimate. This constant feedback is the best way to ensure that there are no surprises at the END of the project. There sill still be surprises, but we’ll see them sooner and have a better understanding of how they will affect our overall timeline. What do you think?

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  • Learning Zend Framework 1 or 2?

    - by ehijon
    I have programmed for a few years in php and now I'm going to learn zend framwork. Zend is very popular and there are a lot of tutorials, books and documentation out there. But I saw in the last months that there is a second version of Zend, but it's not so used and popular, not yet. I think it is better to start with a new version, but I don't know what to do now, as when I see job offers many people require the first version. Which version do you suggest me?

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  • MPD to play music to single channel of my multi-channel card?

    - by hany tawfik
    I installed an Ubuntu 12-04 LTS server for a special background music application of mine, where I am using the server with an Asus Xonar DS sound card. The installation is successful, the MPD is working, the sound card is working with Alsa and its libraries installed accept for Alsa-oss. Alsamixer is working fine with left/right sides of each channel volume control through Q/Z letters shortcut when alsamixer is open in terminal . using the command " speaker-test -Dplug:surround71 -c8 -l1 -twav " I can hear every voice message coming out from the card at the right connector, so "front right/ front left" voice message are coming from first output in the card back, while the other outputs are silent..so on. The problem is that MPD is playing on all outputs simultaneously the same audio. I have been trying various configurations for the last 12 days with out any success, including trying to put mappings in the /etc/asound.conf Can any body help me achieve the above, or direct me to the right configuration of MPD or asound.conf

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