Difference between revisions of "Spoken-Tutorial-Technology/C2/Creation-of-a-spoken-tutorial-using-recordMyDesktop/English-timed"
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Sandhya.np14 (Talk | contribs) |
Sandhya.np14 (Talk | contribs) |
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− | |Once you have successfully installed '''recordMyDesktop''', go to the Ubuntu main menu on the top of the '''monitor''' or '''screen'''. | + | |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 | | 00:51 | ||
− | |Click on '''Applications''' and choose '''Sound&Video'''. | + | |Click on '''Applications''' and choose '''Sound & Video'''. |
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| 00:55 | | 00:55 | ||
− | |This will open the context menu in which you will find | + | |This will open the context menu in which you will find '''gtk-recordMyDesktop'''. Click on it. |
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| 01:02 | | 01:02 | ||
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| 01:07 | | 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 ''' | + | |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 | ||
− | |Notice a new entry in your '''system tray''' icon - 'the red circle', representing the record button. | + | |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 | ||
| The '''system tray''' icon has 3 states: | | The '''system tray''' icon has 3 states: | ||
− | * Recording | + | * '''Recording''' |
− | * Stop | + | * '''Stop''' |
− | * Pause. | + | * '''Pause'''. |
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| 01:34 | | 01:34 | ||
− | |When 'recordMyDesktop' is launched, the icon will be a ' | + | |When 'recordMyDesktop' is launched, the icon will be a 'Record' sign i.e. the red circle. |
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| 01:41 | | 01:41 | ||
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| 01:51 | | 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. | + | | 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 | | 02:03 | ||
− | | To resume the recording, one has to click on the pause sign again. | + | | To resume the recording, one has to click on the '''pause''' sign again. |
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| 02:07 | | 02:07 | ||
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| 02:18 | | 02:18 | ||
− | |Right-click on the red circle 'system tray' icon. Here, you have the options to show or hide the main '''application window'''. | + | |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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| 02:26 | | 02:26 | ||
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| 03:22 | | 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. | + | | 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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|03:32 | |03:32 | ||
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|04:08 | |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'''. | + | | 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 | |04:20 | ||
− | |Notice the button '''ADVANCED'''. Let's click on it. | + | |Notice the button '''ADVANCED'''. Let's click on it. This will open another '''dialog-box''' as seen here. |
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|04:28 | |04:28 | ||
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| 04:35 | | 04:35 | ||
− | |All options in this window are saved and applied when you close it. | + | |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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|04:57 | |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. | + | | 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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|05:10 | |05:10 | ||
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|05:31 | |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. | + | |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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| 05:41 | | 05:41 | ||
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| 05:55 | | 05:55 | ||
− | |The next tab is '''Performance'''. There are 5 options here. Be sure to set the “Frames per second”. | + | |The next tab is '''Performance'''. There are 5 options here. Be sure to set the '''“Frames per second”'''. |
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|06:02 | |06:02 | ||
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|06:12 | |06:12 | ||
− | | The ''' | + | | The '''“Encode On the Fly”''' option causes 'recordMyDesktop' to encode during the capture. |
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|06:19 | |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. | + | |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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|06:28 | |06:28 | ||
− | | But if you need a smooth recording of a not-so-small area, you should turn this option off. | + | | But, if you need a smooth recording of a not-so-small area, you should turn this option off. |
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|06:34 | |06:34 | ||
− | |As mentioned earlier, when using this option | + | |As mentioned earlier, when using this option both audio and video quality must be set to 100%. |
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|06:55 | |06:55 | ||
− | |'''“Full shots | + | |'''“Full shots at every frame”''' enables full captures. By default, it is turned off. |
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|07:10 | |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. | + | |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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|07:40 | |07:40 | ||
− | |The '''“Device”''' should be set to “plughw:0,0” | + | |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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|07:54 | |07:54 | ||
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|08:11 | |08:11 | ||
− | | The ''' | + | | The '''Channels, Frequency''' and '''Device''' fields will be disabled. These settings are now provided by the '''Jack server'''. |
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|08:19 | |08:19 | ||
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|08:43 | |08:43 | ||
− | | When unchecked, the capture area remains stationary in spite of cursor movement. | + | | 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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|08:58 | |08:58 | ||
− | |We will close this window now. Remember, all the settings will be saved as soon as we close this | + | |We will close this window now. Remember, all the settings will be saved as soon as we close this window. |
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| 09:06 | | 09:06 | ||
− | |In the preview window of the display panel, let's draw a capture area for our sample recording. | + | |In the '''preview window''' of the display panel, let's draw a capture area for our sample recording. |
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|09:14 | |09:14 | ||
− | | Click on the left-mouse button, drag. | + | | Click on the left-mouse-button, drag. Release the button. |
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|09:20 | |09:20 | ||
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| 09:39 | | 09:39 | ||
− | |I will click on the '''Record''' icon. | + | |I will click on the '''Record''' icon. "Hello and welcome to the demo recording using 'recordMyDesktop'". |
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|09:48 | |09:48 | ||
− | |This is a demo recording to demonstrate how easy it is to create a spoken tutorial. | + | |"This is a demo recording to demonstrate how easy it is to create a spoken tutorial". |
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|09:54 | |09:54 | ||
− | | Click on | + | | "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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|10:16 | |10:16 | ||
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|10:31 | |10:31 | ||
− | |We will find the output 'ogv' file in the '''Home''' folder. Click on '''home | + | |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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|11:14 | |11:14 | ||
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|11:30 | |11:30 | ||
− | |Spoken tutorial activity is the initiative of the | + | |'''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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|11:42 | |11:42 | ||
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|11:51 | |11:51 | ||
− | |For more information, please visit http://spoken-tutorial.org/NMEICT-Intro. | + | |For more information, please visit: |
+ | http://spoken-tutorial.org/NMEICT-Intro. | ||
|- | |- |
Revision as of 16:43, 20 October 2015
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:
|
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: |
12:01 | This brings us to the end of this tutorial. This is Nancy from IIT Bombay, saying Goodbye and thank you for watching. |