1 00:00:52,788 --> 00:01:00,689 Hello!I will talk you about a nice feature of Creative Soundblaster X-Fi, the cmss3d headphones. But before that, let's talk about 2 00:01:00,690 --> 00:01:08,416 the holophonic sound. It is a stereo sound, but it has been rerorded in a way that if you hear it with headphones 3 00:01:08,700 --> 00:01:17,209 you will think that it is surround sound. This means that you can understand if something is in front of you or it is at your back. The reason that holophonic sound 4 00:01:17,210 --> 00:01:25,081 is different from the normal surround sound is that durind the recording of this sound there are being used 5 00:01:25,082 --> 00:01:36,118 a marionette of a man and 2 special microphones which are beeing placed exactly at the position of left and right ear. 6 00:01:36,119 --> 00:01:43,512 As a result, when you wear heaphones you will hear a realistic 3d sound. Now, we will hear some sound samples that have been downloaded 7 00:01:43,513 --> 00:01:45,910 from internet, in order to understand what this is all about. 8 00:01:47,278 --> 00:01:51,308 Put on your headphones! 9 00:01:51,309 --> 00:01:56,759 Now you will hear some holophonic sounds that you can find easy from the internet. 10 00:01:57,557 --> 00:02:05,328 In order to hear them properly you must put on your headphones. Now I will put a sound from a matchbook that is changing position. 11 00:02:05,329 --> 00:02:06,294 It is very realistic. 12 00:02:13,973 --> 00:02:17,647 Now you will hear a sound from a spray gun that is hovering around your head. 13 00:02:31,667 --> 00:02:36,850 Finally, you will hear a woman that is whispering at your ear. 14 00:02:50,687 --> 00:02:59,792 A holophonic sound can be produced real time by the X-Fi when there is available a 3d sound source such as a pc game or a 15 00:02:59,793 --> 00:03:11,643 dvd with surround sound or when you are watching a wma or wmv file with 5.1 sound.First of all you must set your sound card for headphones 16 00:03:11,644 --> 00:03:20,660 and enable the cmss 3d for headphones. When you do that and you wear your headphones, the sound card will emulate 17 00:03:20,661 --> 00:03:28,948 an almost realistic surround sound. Now let's see some examples at the computer 18 00:03:28,949 --> 00:03:34,470 that you can also hear, provided that you have put on your heaphones when you will see the videos. 19 00:03:35,232 --> 00:03:37,252 Put on your headpones! 20 00:03:37,142 --> 00:03:46,347 Now you are seeing the Sony Vegas, which we are using for creating our vidcasts. I have set up the program for surround sound 5.1, as you can see 21 00:03:46,348 --> 00:03:53,881 there are 5 speakers and we are at the center. This is the sound source, when we in front of that, we must hear sound that feels like it is in fron of us, and when it is at the back of us 22 00:03:53,882 --> 00:04:02,132 we must hear it behind us. In order to hear this sound you must have 5.1 speakers. If you attempt to hear it with headphones you will hear something 23 00:04:02,133 --> 00:04:07,469 that it is not surround sound. You will hear something like that. 24 00:04:17,127 --> 00:04:26,786 But if you have enabled the cmss 3d headphones from the control panel of creative, (in order to do this go headphones, cmss 3d and enable it), 25 00:04:26,787 --> 00:04:34,687 you will feel surround sound. You will definitely feel that this sound is front,behind you and it is hovering around! 26 00:04:57,983 --> 00:05:05,474 You can also use cmss 3d with dvd movies,if you use your headphones, but the best application is the use of cmss at 3d games. 27 00:05:05,475 --> 00:05:12,866 It can work with every game that supprots 3d sound, provided that the game supports hardware acceleration at sound. 28 00:05:12,867 --> 00:05:22,634 I don't think that today is a game that is not supporting 3d sound. You must put on again your cmss 3d headphones. We will see now Unreal Toyrnament and Call of Duty 2, 29 00:05:22,635 --> 00:05:31,302 with cmss and without cmss in order to see the difference. I will use now a grenade and i will turn around, first without cmss. 30 00:05:31,303 --> 00:05:36,662 You will not understand that it has exploded behind you. But with cmss you will feel that it has exploded behind you for real. 31 00:08:07,000 --> 00:08:18,394 Hello!I know that I have been talking a lot at my posts about ajax. Well,it is time to show how ajax works in action! 32 00:08:18,395 --> 00:08:27,785 I will show a very simple tutorial about ajax without php. It will be about using ajax only with html and javascript. Let's start with the most simple subject of ajax, 33 00:08:27,786 --> 00:08:37,598 the asynchronous communication of the client with the server. Let's see how this works! 34 00:08:38,240 --> 00:08:51,243 Firstly,we'll create a html file,ajax.html, and we will write to this file a simple code. I will write a javascript that I will put also as post to the site. 35 00:08:51,244 --> 00:09:03,398 The javascript will have 3 functions. The main purpose of the program will be a request to the server,when the user is pressing a button at the page. 36 00:09:03,399 --> 00:09:14,237 This means that it will ask for some data. The function is doing a request,and also an internet browser identification. 37 00:09:14,238 --> 00:09:28,554 This is essential because microsoft for example is using a specific format about ajax and the xml request. 38 00:09:32,003 --> 00:09:45,372 Let's go now to the basic html body,there is here a "link a href" in which when we are pressing "change div",a javascript is being executed and a fuction called 39 00:09:45,373 --> 00:10:00,054 send request 1. This fuction is transferring a number and is also doing a request "http.open get" to a page. 40 00:10:00,055 --> 00:10:15,828 At the same folder as you can see there are 2 files, resp1 & 2. It is not necessary for them to be html, but they can also have 41 00:10:15,829 --> 00:10:22,848 php code.Most of the sites are php based which is running from a server. In that tutorial we have simple html files. 42 00:10:22,849 --> 00:10:33,728 To the first file we have writen "the first greek vidcast" with header2 and to the other "ease your boredom" with ul li and they are being displayed as list. Whenever we are asking about 43 00:10:33,729 --> 00:10:53,872 request 1,the 1 is being transferred to the function 1,and as a result the 1 is being attached with resp and is calling the resp1 file. The client when is asking for the function handle response, 44 00:10:53,873 --> 00:11:08,468 is also checking if everything habe been correctly transferred and it goes to the div with the wiggler id. This means that you will see this div at the same page, 45 00:11:08,469 --> 00:11:16,449 it will have a change at the html code. Here is the page that we have created and this is the "change the div" button. When we are pressing this 46 00:11:16,450 --> 00:11:32,679 the "wiggler.gr" that it have a div wiggler will change and we will see the "first greek vidcast",that it have been accessed and tranferred by the resp1 file. 47 00:11:32,680 --> 00:11:45,367 The same happens with "serve request2" as you can see. 48 00:12:00,771 --> 00:12:11,606 This tutorial is a simple example about the many capabilities of ajax that are being only limited by your imagination! 49 00:12:11,607 --> 00:12:14,365 Well,that's it! I hope I didn't make you bored to death. 50 00:12:29,631 --> 00:12:37,921 Hello again!I will show you now a program called Brainwave Generator. This program is being based to the theory that 51 00:12:37,922 --> 00:12:48,465 if external stimulus is applied to the brain, it becomes possible to entrain the brain frequency from one stage to another. For example, if a person is in beta stage (highly alert) 52 00:12:48,466 --> 00:12:59,540 and a stimulus of 10Hz is applied to his/her brain for some time, the brain frequency is likely to change towards the applied stimulus. The effect will be relaxing to the person. The sound and visual 53 00:12:59,541 --> 00:13:10,691 stimulation functions of BrainWave Generator help you,for example,for preparing for stressful situations,to improve learning results,alleviate headaches or for sexual simulation! 54 00:13:11,589 --> 00:13:28,331 Here is the program. There is a built-in list with many categories such as headache treatment, attention focusing, relaxation. 55 00:13:28,332 --> 00:13:36,965 You can also import many other categories such assex simulation. Firstly, you go to the presets menu ,then import and then you are choosing a simulation that 56 00:13:36,966 --> 00:13:48,709 you have downloaded. Then you are pressing Play. Also you can export simulations to mp3 in order to hear them to your iPod, or any other mp3 player you have. 57 00:14:23,594 --> 00:14:32,701 To this vidcast,i will show you a sci fi tv show called, Battlestar Galactica. This tv show is a remake from a '80s tv show but there are many 58 00:14:32,702 --> 00:14:45,680 new scenario elements.As a result the show is much more interesting! The main sublect of the show is the war between cylons and humans. 59 00:14:45,681 --> 00:14:56,305 Cylons are machines with high A.I. From this war, very few people survidedand they have been forced to left their planet 60 00:14:56,306 --> 00:15:06,423 which it has been destroyed almost completely from Cylons. The number of people that have survided are about 47.000 and with the Battlestar Galactica, which is a space 61 00:15:06,424 --> 00:15:16,180 combat ship, they are trying to escape from the cylons that are chasing them. Concurrently the are tryiing to live as normally as they can. 62 00:15:16,181 --> 00:15:26,072 For example,a new president of the human colonies is being elected. This means that the show except from space action and combat it 63 00:15:26,073 --> 00:15:35,826 also has power politics games and political conspiracies. I recommend this show to all sci fi and star trek fans! I think that it is really interesting! 64 00:15:45,184 --> 00:15:50,900 Subtitles created by ispofacto. 65 00:15:50,901 --> 00:15:53,577 http://www.wiggler.gr/ 66 00:15:58,147 --> 00:16:00,252 ease your boredom