 A-view link is the lifeline between the central place that is IIT Bombay studio and your place. If that link is down for one minute, you are disconnected for one minute. One thing you have to do is keep your internet on and see to it that there is proper connectivity with A-view and that's why the whole session now is given to Sajjan Dixit. Sajjan Dixit working as a project manager in this national mission project. So before taking the hands on I would like to describe something here. So let us see first requirements. So the A-view all are familiar with A-view software I think. So A-view is a platform, a framework which the teacher can use for online teaching and it works on internet networks. So most probably you will need internet line at your side and it should be one Mbps is stable internet line. So one Mbps, one Mbps is stable internet bandwidth you will require that line. Make sure that this line is not coming through your proxy server because under proxy this software will not work. So take direct line, bypass the proxy in your institute. So we have a URL to check the bandwidth. So you can check your bandwidth using this URL. This is the URL 59.162.23.82 slash speed test. So you can check your bandwidth, how much you are getting. Then requirement is personal computer, well configured personal computer. It should have Windows XP OS and with minimum 2 GB RAM. Third you will need video camera with tripod and please keep that camera under the projector. So we can see the front face of your all the participant when interaction come during the lecture time. Fourth is professional microphone for audio. To connect camera to PC you will require video capture device. It could be either PCI or USB. We are using here this device to connect camera to PC. This is the easy kept device but you can go with pin, eichel, osprey whatever you are getting in the your institute. Right now we have 14 devices. So we can provide you just write your name in the paper and distribute to other. So after the my demo I will provide that device. But only we will provide only those who are really trouble and they are not getting that device in the city. Because we have low record we tested your center. For audio you will need 2 amplifier with speakers. One amplifier should be used for teachers audio. One amplifier should be used for your own audio. If you do not have 2 amplifier the single amplifier should be used only for teacher audio. Your microphone should be connected direct to the PC without using any amplifier. Otherwise eco will generate. You cannot connect input and output in a single device. So I am making a diagram. Suppose you use a single amplifier. Take audio output from the PC and connect it to amplifiers auxiliary or input. Your microphone should be connected to direct to the PC. So if you have wireless receiver like that. So take output from this receiver and the another end of the cable connect to PC direct. Do not use any amplifier in between your audio device and PC. Mic in or line in. If that receiver generates high gain audio your cable should be connected to the line in option. If that does not generate high gain audio connect to mic in option. If you have 2 amplifier and want to listen for this setup. If you use this setup you will not listen, you will not get your own audio in the classroom. Because teacher can access your audio but you cannot listen. If you connect this mic in this amplifier the signal goes to this amplifier teacher's audio signal goes to first amplifier and your signal is also goes to this amplifier and you are taking this output so eco will generate. So please do not use single amplifier for your own audio that should be only for teacher's audio. Yesterday we saw this demo of the session and ACI here. Yes, yes. But I thought ACI was the old setup and we were having distinct eco related problems. Right now you yesterday there was no eco actually. No it was eco when there was feedback session that is then that is coming from the classroom. We have a speaker in that teacher's side classroom. So that speaker is near that microphone so the little bit eco is the defend that is defend but if you connect wrong connection eco will generate the same gain in same gain. So use microphone only when you want to ask a query or questions and when teacher speaks mute on that mic. So if you have two amplifier so disconnect that cable use another amplifier and that cable goes to in auxiliary of second amplifier and connect separate speaker for this and separate speakers for this and take output from this amplifier yeah preamp out line out and if you use that second amplifier the line should be connected to the line in option only because it provides high gain audio. So this is the diagram for to reduce the eco and you will need some connectors and cables as per the connections whatever model you are using yeah there are two input color pink and blue pink is mic in blue is line in and green is the output pink is mic in blue is line in and green is output of PC you can see here this is the line in mic in middle one is the output yeah left hand side you can see pink color that is the mic in and the blue color is the line in no it would be better you can use but suppose you select wrong you or you configure wrong thing in that left of according to the a view connections. So you will get problem it would be better if you use desktop machine because there is no camera inside that there is no audio input in built mic. So sometimes you forgot to select that proper microphone or my proper camera so you will get the problem cables and connectors. So these are the requirements to use a view now there are four faces four states of a view. So first is login when it is successful success it goes to navigation part you can see their classroom library setup feedback so to receive the transmission from the teacher side you have to enter the classroom select classroom now you will see the virtual classroom list now I have you have been allocated new research new remote center testing now we provide you another class research methodology so you have to enter that in that class just double click on that research methodology class so after that select class you will get final interface of the software. So this portion covers teacher video there are three tabs here use online users list chat box and student video whenever interaction comes and teacher is interacting with other center you can see that video in by pressing that student video tab and by double clicking you can see full screen also there in this portion you can see whiteboard and document when teacher change the slide it will automatically change at the same time these are the interface now let us see the display mode there are two display mode in a view single window multiple window you can see here the video part users online users part and the document whiteboard there are four screens inside a one inside a single interface so this is the consolidated mode so we call it single or single window mode so when you choose single window you will get this interface if you want to use multiple window you will need a two display card in your system so two display card when you insert in the PCI slots you will get four output and extend the display and connect four monitors for projector and drag and drop that screen if you want to use multiple window mode then you will need two display card in the PC when you insert two display card in the PC you will get four output from the PC for VG output and using the display card you can extend the screens so when you log in in use by using multiple window mode you will get all the screen separately video is separate whiteboard is separate document in separate online users is separate so drag each screen in each window each screen you can see everything in larger screen you can see in consolidated mode now but you can concentrate all the screen separately it would be better but we are not recommending that you use multiple mode if you have one projector use single mode only if you have four screens then you can use yeah this is not mandatory a view is a software which is not meant just for this purpose and this setup it has many other uses okay and I think the multiple window mode has created where instead of a projector you have four LCD screens on the wall because there are smaller classrooms where instead of a projector four LCD screens are put and sometimes you have the same thing maybe slightly different way on the four screens or sometimes the same picture is just split into four corners and comes into four screens just to get as if it's a one big screen of quadruple resolution so don't worry about it I think for us if you have a projector the single window mode is it would be better yes so now how it works with server so we have server here under the server we have three servers one is database server for authentication second is video server for streaming server for live video and third one is content server for whiteboard and document so suppose this server is connected to internet remote center multiple remote centers are connected to internet also so when you log in first request goes to database server and it uses you we are using a in the database part my SQL to you will you you are using that a view that is a desktop application to connect desktop application to the server we are using here LCDs live cycle data services and it works on port at 7 double 0 so if port 8 7 double 0 is blocked by firewall or the router you will not get the another interface you will get the difficulty in the login so suppose authentication is success so you will go to next interface then you you will after the final interface you will see their video users and all the things so that comes through video server the content works on content server but you cannot see without getting the video because the synchronization problem if you get early then you will not get the synchronization so when video comes at your side after that you can receive that content part so video server using port number 1935 suppose login is successful but you cannot see users your own institute name in the users list that means port number 1935 is blocked so you have to open that port in router and firewall and content server works on port number 80 in every server it almost it is opened so this is the basic funda how to how it works now we we take the hands on there are some checklists before start the a view if you are using Mozilla Google Chrome please do not open that you should open only internet explorers because Windows XP taking all the default setting from internet explorer so for this purpose you should start internet explorer only so start internet explorer go to tools after tools select internet options now the fifth wave is connections select that under that you can see land settings select that make sure the proxy server checkbox is this unchecked yeah because under yeah deselected it should be deselected deselected because under proxy this software will not work and you are using Mozilla you called me that the internet is working fine what is the problem yeah so before start the view open internet explorer check the proxy setting there is and this checkbox should be unchecked type our IP address our server's IP address 59.162.23.82 yeah first check that server is ringing or not so after that type speed test and check this sorry 59.162.23.82 you check your bandwidth I am using data card here because if you use that card or use low band proper bandwidth you do not have the adequate bandwidth at your side you will get definitely problem so I am using a older machine and the data card here so it is taking too long time that means the bandwidth is not proper so you can see download is 0.55 and upload is 0.60 it should be around 1 mbps so it is less than 1 mbps so make sure that reading you will get around 1 mbps yes yes both the side yes around 1 mbps so that means speed is fine or not you can check after that close this and insert your video capture device so now you can see I am double clicking on my computer so you can see all the devices when I insert this device before that you have to install the driver of this device I have already installed so you can see under the scanner and camera Sintek STK1160 this is the device name so it is detected that means device is working properly if you will not get that that means problem in the device or driver so now double click on that and connect your cameras composite output to the to this connector this input composite in yellow color no it will not work high definition it will not work if you does not support high definition video so I am using this handicap so along with that handicap you will get this cable so this is the AV output please use only yellow color we are not using handicaps audio so please do not connect these only yellow color to in yellow color of easy cap so now you can see video that means camera is working fine and the device is working properly now close this if you do not close when you start a view the application is running the driver is running in another application because you cannot use digital device in two application now after that you should start screen camera first before start the AV screen yeah I forgot to mention there along with AV in AV software we are providing you there are four packages AV screen camera Java runtime Adobe Air so when you install that software first it will install AV classroom after that it will install screen camera after that it will it will install Java runtime after that Adobe Air this is the runtime to run that whole application so please do not update Adobe Air there is a bug in version 3.2 so we are providing 2.5 version along with this software if you get this type of window when you start the application the installation is completed after that when you start the application it will sometimes you can see this kind of pop up so every time you should cancel that otherwise the video driver AV does not detect AV driver will not detect actually there is a bug in Adobe Air so please do not update if accidentally you updated please uninstall AV and install Adobe Air both application from your ad remove programs and reinstall that application AV only AV along with AV there are four packages so it will automatically install all four packages during the Java update Java also yeah but that testing was only for selecting the centers now before the workshop we start yeah but some of we faced many problems those who are already older center they forgot sometimes to start they are not following the best way to start the AV it will provide you confidence actually so start the select configuration go to webcam and the last icon you can see here is the configuration of this software screen camera software select that you will get a window select webcam there configure your camera for this software select from drop down your device I have inserted the easy kept device so you can see that device there select that device and connect now we are recording we have provided video also all the centers so if camera is working properly you can see your own video here now press ok as a reference you can see your own video by pressing this this button top of this software now the video is in not fully screen mode so by pressing the third icon of the screen camera you will get fully screen mode that means video is working fine properly there is no error in the video connectivity now you should start the AV software so fill up your username and password select server to please select only that server which has been assigned to you and as per your so is single window mode multiple window mode press login it will get some time it will take some time if you will get a problem related to the login that means problem in the port number at 7 double 0 you can say by using internet open internet explorer type 59 the same IP address colon at 7 double 0 you will get lcds data website that means port is open if you will not get that part that means port is blocked so you you have to open that port in router as well as firewall of the proxy server so now enter the class enter in the classroom select class you have to select you will have to select research methodology there double click on that so sorry yes type that IP address and colon at 7 double 0 in the address bar and check that lcds data website are you getting or not if you are not getting that means port is blocked to connect my school database and the desktop application we are using here lcds life cycle data services for that purpose we are using port at 7 yes that means port is open if you will not get that means port is blocked so now you can receive the transmission but you have to configure camera and microphone for this a view software so now press settings button select your camera if you will not get video device there that means you have updated adobe air so please uninstall adobe air uninstall a view and reinstall adobe a view software again so along with a view adobe will automatically install so select your device select your microphone sometimes some for forget that I suppose the usb default then they you should select sigmatel audio device there because you will use your own device of the pcs device audio device you are not using easycaps audio device so select sigmatel there whatever you have sigmatel it could be sigmatel real tech sound max whatever you have let us just select that device only and video quality the upload bandwidth is too high you can use 512 otherwise use only 128 kbps upload upload means your video encoding if you have adequate bandwidth we will provide that this is the criteria we have defined as per your bandwidth if you do not have use only 128 kbps and this is that reception feature side video quality if you have download too much download bandwidth you can select medium or high quality the default is lowest quality now save the setting and press start button to start the stream that the stream will go to server so now as a reference you can see your own video here that means the streaming is working fine if you are not getting video right hand side pop up that means problem in the connectivity or streaming server if you will get that video that means streaming is fine teacher can see us now under the users there is a hand raise button this is the hand raise button whenever participant has some doubts the operator AV operator press that button when you press that button the question mark teacher can see against your institute name so teacher will select you and interact video center and in this student video you can see the interaction part of other centers you cannot you will not get your own video there only other centers video so now video is ok for audio suppose that cable goes to amplifier so connect that cable to middle green color this is the output of the pc so output goes to amplifier now you have wired or wireless device so if you have wired mic connect so the amplifier is working properly that means if you receive that audio so there is a converter 402 3.5 mm to connect that cable in pc you will need that connector so this is the converter 402 3.5 mm because this big part you cannot connect in the pc jack jack phone of female 23.5 mm male if yeah direct if you have you can use no problem so suppose you are using wired mic connect that wired mic if you have only single amplifier connect that cable direct to the mic in option of the pc like that please do not use any amplifier in between the pc and microphone a single amplifier if you are using wireless mic take output from the wireless receiver and another end of the cable inserted in mic in so before says the interaction start just check that audio is coming or not so you have selected in avio sigma tail or real take whatever device you have before going to avio just say just make proper connection or proper configuration of audio so double click on the volume control select options properties and recording press ok now I have inserted that cable in mic in rear port so you should select rear mic now the default selection is line in option so audio will not come so select rear mic this is the volume control of microphone if you have sigma tail device in your system double click on volume control select options of window properties recording press ok options sorry and select that rear microphone if I am using right now mic in option so I have selected mic in if you will use line in select line in so this window is only for sigma tail if you have real take device in the machine so there are two type of real take devices go to control panel and select real take from there so this is the screen set of real take press second type mixer and select device here also suppose you have insert that cable in line in or microphone mic in select that proper connections here also so otherwise you will not receive your audio and you can see volume control of the microphone there also in some of the PC you will get the screens of this kind of the device so you will not able to see the slider there so that means all inputs are working together on that time please make sure that stereo mix is muted every time it should be muted otherwise eco will generate and this is the volume control of microphone under the record the microphone volume control thank you so much if you have any questions raise yes yes if you want to use two microphone you should use no no teacher is physically away from your center if you want to use multiple microphone you should use audio mixer and take output from the audio mixer sorry yes yes no no no you you disconnect from there and connect direct to the PC otherwise eco will generate you cannot connect input and output in single device