Difference between revisions of "Spoken-Tutorial-Technology/C2/Creation-of-a-spoken-tutorial-using-recordMyDesktop/English-timed"

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|Once you have successfully installed  '''recordMyDesktop''', go to the Ubuntu main menu on the top of the '''monitor''' or '''screen'''.   
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|Once you have successfully installed  '''recordMyDesktop''', go to the '''Ubuntu''' main menu on the top of the '''monitor''' or '''screen'''.   
 
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| 00:51
 
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|Click on '''Applications''' and choose '''Sound&Video'''.   
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|Click on '''Applications''' and choose '''Sound & Video'''.   
 
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| 00:55
 
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|This will open the context menu in which you will find the application '''gtk-recordMyDesktop'''.  Click on it.   
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|This will open the context menu in which you will find '''gtk-recordMyDesktop'''.  Click on it.   
 
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|The main application window serves the purpose of defining some basic parameters of the recording while the '''tray''' icon is primarily used for '''runtime control''' of your recordings.   
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|The main application window serves the purpose of defining some basic parameters of the recording while the '''tray''' icon is primarily used for '''run time control''' of your recordings.   
 
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|01:19
 
|01:19
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|Notice a new entry in your '''system tray''' icon - 'the red circle', representing the record button.   
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|Notice a new entry in your '''system tray''', an icon - 'the red circle', representing the '''record''' button.   
 
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|01:27
 
|01:27
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| The '''system tray''' icon has 3 states:  
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| The '''system tray''' icon has 3 states: '''Recording''', '''Stop''', '''Pause'''.  
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* Recording  
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* Stop  
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* Pause.  
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|When 'recordMyDesktop' is launched, the icon will be a 'record' sign i.e. the red circle.   
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|When 'recordMyDesktop' is launched, the icon will be a 'Record' sign i.e. the red circle.   
 
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| To pause the recording, one has to right-click on the square and the icon will change into a pause sign - two thin parallel and vertical rectangles.  
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| To pause the recording, one has to right-click on the square and the icon will change into a pause sign - two thin, parallel and vertical rectangles.  
 
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| 02:03
 
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| To resume the recording, one has to click on the pause sign again.  
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| To resume the recording, one has to click on the '''pause''' sign again.  
 
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|Right-click on the red circle 'system tray' icon.  Here, you have the options to show or hide the main '''application window'''.   
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|Right-click on the red circle i.e. 'system tray' icon.  Here, you have the options to show or hide the main '''application window'''.   
 
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| By default, both Video and Sound quality are set at 100.  This setting gives very good playback video quality as well as audio quality.  
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| By default, both '''Video''' and '''Sound quality''' are set at 100.  This setting gives very good playback video quality as well as audio quality.  
 
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| By default, 'recordMyDesktop' does not record audio. To enable audio capture, one has to check the box to the left of '''Sound Quality'''.
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| By default, 'recordMyDesktop' does not record audio. To enable audio capture, one has to '''check''' the '''box''' to the left of '''Sound Quality'''.
  
 
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|04:20
 
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|Notice the button '''ADVANCED'''.  Let's click on it. This will open another '''dialog box''' as seen here.
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|Notice the button '''ADVANCED'''.  Let's click on it. This will open another '''dialog-box''' as seen here.
 
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|All options in this window are saved and applied when you close it. There are 4 options in the Main Menu of this window.   
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|All options in this window are saved and applied when you close it. There are 4 options in the Main Menu of this window.   
  
 
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| By default, this option is turned off.  Hence the existing files are not touched at all. Instead, the new one is saved with a number postfixed at its filename.  
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| By default, this option is turned off.  Hence, the existing files are not touched at all. Instead, the new one is saved with a number postfixed at its filename.  
 
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|Let me open the '''Advanced''' tab again . If the '''“Overwrite Existing Files”''' option is turned on, existing files are deleted without any prompt.
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|Let me open the '''Advanced''' tab again . If the '''“Overwrite Existing Files”''' option is turned on, existing files are deleted without any '''prompt'''.
 
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|The next tab is '''Performance'''.  There are 5 options here.  Be sure to set the “Frames per second”.   
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|The next tab is '''Performance'''.  There are 5 options here.  Be sure to set the '''“Frames per second”'''.   
 
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| The '''“Encoding on the Fly”''' option causes 'recordMyDesktop' to encode during the capture.   
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| The '''“Encode On the Fly”''' option causes 'recordMyDesktop' to encode during the capture.   
 
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|By default, it is off.  This is useful when you don't need a high fps or you are capturing a small area.   
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|By default, it is '''off'''.  This is useful when you don't need a high '''fps''' or you are capturing a small area.   
 
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| But if you need a smooth recording of a not-so-small area, you should turn this option off.   
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| But, if you need a smooth recording of a not-so-small area, you should turn this option off.   
 
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|As mentioned earlier, when using this option, both audio and video quality must be set to 100%.  
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|As mentioned earlier, when using this option both audio and video quality must be set to 100%.  
  
 
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|'''“Full shots At Every Frame”''' enables full captures.  By default, it is turned off.
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|'''“Full shots at every frame”''' enables full captures.  By default, it is turned off.
  
 
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|It can be 1 (mono) or 2(stereo). When recording from a microphone, selecting more than one channels is completely unnecessary and will only increase the size of your output file.   
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|It can be 1(mono) or 2(stereo). When recording from a microphone, selecting more than one channels is completely unnecessary and will only increase the size of your output file.   
  
 
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|The '''“Device”''' should be set to “plughw:0,0” this is so that you have precise control of the channels and frequency values.  
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|The '''“Device”''' should be set to “plughw:0,0”. This is so, that you have precise control of the channels and frequency values.  
 
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| The '''channels, frequency''' and '''device field'''s will be disabled.  These settings are now provided by the '''Jack server'''.  
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| The '''Channels, Frequency''' and '''Device''' fields will be disabled.  These settings are now provided by the '''Jack server'''.  
 
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| When unchecked, the capture area remains stationary in spite of cursor movement. I will give you a demo of this soon.
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| When unchecked, the capture area remains stationary in spite of cursor movement. I will give you a demo of this soon.
  
 
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|We will close this window now.  Remember, all the settings will be saved as soon as we close this '''window'''.
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|We will close this window now.  Remember, all the settings will be saved as soon as we close this window.
  
 
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|In the preview window of the display panel, let's draw a capture area for our sample recording.  
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|In the '''preview window''' of the display panel, let's draw a capture area for our sample recording.  
 
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| Click on the left-mouse button, drag. Release the button.   
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| Click on the left-mouse-button, drag. Release the button.   
 
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|I will click on the '''Record''' icon. Hello and welcome to the demo recording using 'recordMyDesktop'.  
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|I will click on the '''Record''' icon. "Hello and welcome to the demo recording using 'recordMyDesktop'".  
 
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|This is a demo recording to demonstrate how easy it is to create a spoken tutorial.  
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|"This is a demo recording to demonstrate how easy it is to create a spoken tutorial".  
 
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| Click on '''Applications''' – Choose '''office > Wordprocessor'''. Let me type "Demo" here and click on the square icon to stop the recording.   
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| "Click on 'Applications' – Choose 'office > Wordprocessor'. Let me type 'Demo' here and click on the square icon to stop the recording".   
 
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|We will find the output 'ogv' file in the '''Home''' folder.  Click on '''home folder''', here it is. This is our demo recording. Let's play this.
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|We will find the output 'ogv' file in the '''Home''' folder.  Click on '''home''' folder, here it is. This is our demo recording. Let's play this.
 
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|Spoken tutorial activity is the initiative of the ‘'''Talk to a Teacher’''' project coordinated by http://spoken-tutorial.org, developed at '''IIT Bombay'''.  
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|'''Spoken tutorial''' activity is the initiative of the ‘Talk to a Teacher’ project coordinated by:
 +
http://spoken-tutorial.org, developed at '''IIT Bombay'''.  
 
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|For more information, please visit http://spoken-tutorial.org/NMEICT-Intro.  
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|For more information, please visit:http://spoken-tutorial.org/NMEICT-Intro.  
  
 
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|-

Latest revision as of 15:52, 20 February 2017

Time Narration
00:00 Hello and welcome to this tutorial on “How to use recordMyDesktop”.
00:05 recordMyDesktop is a free and open source screencasting software that works on the Ubuntu Linux operating system.
00:13 For more information on Screencasting software, please watch the spoken tutorial on "How To Use Camstudio" available on this website.
00:21 I have already downloaded gtk-recordMyDesktop version 0.3.8 and installed it on my PC through the Synaptic Package Manager.
00:33 For more information on how to install software in Ubuntu Linux, please refer to the spoken tutorials on Ubuntu Linux available on this website.
00:43 Once you have successfully installed recordMyDesktop, go to the Ubuntu main menu on the top of the monitor or screen.
00:51 Click on Applications and choose Sound & Video.
00:55 This will open the context menu in which you will find gtk-recordMyDesktop. Click on it.
01:02 This will open the 'gtk-recordMyDesktop' application window.
01:07 The main application window serves the purpose of defining some basic parameters of the recording while the tray icon is primarily used for run time control of your recordings.
01:19 Notice a new entry in your system tray, an icon - 'the red circle', representing the record button.
01:27 The system tray icon has 3 states: Recording, Stop, Pause.
01:34 When 'recordMyDesktop' is launched, the icon will be a 'Record' sign i.e. the red circle.
01:41 When one starts recording, the icon will change into a square which is the Stop sign.
01:46 Observe, there are 2 squares here.
01:48 This is because I am using 'recordMyDesktop' to record this tutorial.
01:51 To pause the recording, one has to right-click on the square and the icon will change into a pause sign - two thin, parallel and vertical rectangles.
02:03 To resume the recording, one has to click on the pause sign again.
02:07 In order to stop the recording, one has to click on the square.
02:12 Before setting any parameters, let me give you an important information.
02:18 Right-click on the red circle i.e. 'system tray' icon. Here, you have the options to show or hide the main application window.
02:26 When you start a recording session, the main window will hide itself by default.
02:32 One can also choose to show the main application window by selecting this option.
02:37 “Select Area on Screen” is a way of defining the area that you wish to record.
02:43 Choosing this option will change the cursor into a cross-pen with which one can draw the capture on the screen.
02:51 “Quit” option exits 'recordMyDesktop', exactly like the button on the main window.
02:57 Coming back to the application window, you will find the display panel to the left with a small 'preview' window.
03:06 It depicts a scaled version of your desktop which can be used for defining an area of recording.
03:13 To the right of this panel, you will find the options to increase or decrease the Video Quality and the Sound Quality.
03:22 By default, both Video and Sound quality are set at 100. This setting gives very good playback video quality as well as audio quality.
03:32 The trade-off, however, is a larger file size. For creating Spoken Tutorials, one does not need to have 100% Video quality as it increases the file size.
03:44 Experimenting a bit with these parameters will allow you to get an optimum file size with reasonably good video and sound quality.
03:53 I will set the video quality to 50 and sound quality to 100.
04:00 This is because the size of the audio stream will occupy only a small part of your resulting file.
04:08 By default, 'recordMyDesktop' does not record audio. To enable audio capture, one has to check the box to the left of Sound Quality.
04:20 Notice the button ADVANCED. Let's click on it. This will open another dialog-box as seen here.
04:28 Visit the ADVANCED window at least once, in order to better customize the behavior of 'recordMyDesktop'.
04:35 All options in this window are saved and applied when you close it. There are 4 options in the Main Menu of this window.
04:43 The first tab is Files. There are two options here.
04:48 There is an option to overwrite existing files, bearing the same filename in the same location, with the one you chose for your recording.
04:57 By default, this option is turned off. Hence, the existing files are not touched at all. Instead, the new one is saved with a number postfixed at its filename.
05:10 So, if you choose to save your recording as 'recording.ogv' in your home directory and there is already a file named like that,
05:18 the new one will instead get saved as 'recording-1.ogv'. If 'recording-1.ogv' exists then the new file will be named as 'recording-2.ogv' and so on.
05:31 Let me open the Advanced tab again . If the “Overwrite Existing Files” option is turned on, existing files are deleted without any prompt.
05:41 So, one has to be careful with it. The “Working Directory” option is the location in which the temporary files are stored during the recording.
05:50 This applies only when you are not performing encoding on the fly.
05:55 The next tab is Performance. There are 5 options here. Be sure to set the “Frames per second”.
06:02 2 frames per second is a good setting for this parameter. However, for high animation videos, set any number between 15-20 frames per second.
06:12 The “Encode On the Fly” option causes 'recordMyDesktop' to encode during the capture.
06:19 By default, it is off. This is useful when you don't need a high fps or you are capturing a small area.
06:28 But, if you need a smooth recording of a not-so-small area, you should turn this option off.
06:34 As mentioned earlier, when using this option both audio and video quality must be set to 100%.
06:42 “Zero Compression” tab controls the compression of the cache. “Quick Subsampling” deals with the quality of the colorspace transformation. We will leave them as they are.
06:55 “Full shots at every frame” enables full captures. By default, it is turned off.
07:02 The third tab is Sound. The “Channels” option sets the number of channels in the resulting audio stream.
07:10 It can be 1(mono) or 2(stereo). When recording from a microphone, selecting more than one channels is completely unnecessary and will only increase the size of your output file.
07:24 The “Frequency” setting is probably the most defining factor for the audio quality of a recording.
07:30 The default is 22050 which is more than enough for speech but if you are recording music, you might need to use 44100.
07:40 The “Device” should be set to “plughw:0,0”. This is so, that you have precise control of the channels and frequency values.
07:54 Only then will the audio play smoothly, without any hitches or jumps. Typing “default” in lowercase alphabets also works.
08:05 If you are using an external jack for recording then check this box.
08:11 The Channels, Frequency and Device fields will be disabled. These settings are now provided by the Jack server.
08:19 Before enabling Jack capture, you should make sure that a Jack server is running.
08:25 The last tab is Miscellaneous. There are various options here which are meant to be used less frequently.
08:34 An important option here is the Follow Mouse option. When checked, the capture area will follow the cursor wherever it moves on the screen.
08:43 When unchecked, the capture area remains stationary in spite of cursor movement. I will give you a demo of this soon.
08:53 Let me also check Outline Capture Area On Screen.
08:58 We will close this window now. Remember, all the settings will be saved as soon as we close this window.
09:06 In the preview window of the display panel, let's draw a capture area for our sample recording.
09:14 Click on the left-mouse-button, drag. Release the button.
09:20 You will find a small rectangle in the preview window and a larger rectangle on your screen. This is the actual capture area.
09:30 All activities within this rectangle will be captured in the demo recording. Now, let's do a demo recording.
09:39 I will click on the Record icon. "Hello and welcome to the demo recording using 'recordMyDesktop'".
09:48 "This is a demo recording to demonstrate how easy it is to create a spoken tutorial".
09:54 "Click on 'Applications' – Choose 'office > Wordprocessor'. Let me type 'Demo' here and click on the square icon to stop the recording".
10:16 'recordMyDesktop' is now encoding and producing a movie in 'ogv' format.
10:24 Let me close the open office writer. The encoding is complete and the movie is now ready. Let's check it out.
10:31 We will find the output 'ogv' file in the Home folder. Click on home folder, here it is. This is our demo recording. Let's play this.
11:14 So, I hope the information given in this tutorial will help you to use 'recordMyDesktop' on your computer.
11:21 Install this free and open source software and use it to create audio-video tutorials and online visual learning modules of your own.
11:30 Spoken tutorial activity is the initiative of the ‘Talk to a Teacher’ project coordinated by:

http://spoken-tutorial.org, developed at IIT Bombay.

11:42 Funding for this work has come from the National Mission on Education through ICT, launched by MHRD, Government of India.
11:51 For more information, please visit:http://spoken-tutorial.org/NMEICT-Intro.
12:01 This brings us to the end of this tutorial. This is Nancy from IIT Bombay, saying Goodbye and thank you for watching.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha

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