St-admin: Created page with ''''Important note:''' # For all the formats mentioned below, '''the final videos should be 1 MB or lesser per minute.''' # '''The choice of fps…'

2012-12-14T07:46:16Z

Created page with ''''Important note:''' # For all the formats mentioned below, '''the final videos should be 1 MB or lesser per minute.''' # '''The choice of fps…'

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'''Important note:''' 

# For all the formats mentioned below, '''the final videos should be 1 MB or lesser per minute.'''
# '''The choice of fps directly affects the filesize.'''
#* Low fps means low filesize.
#* High fps means high filesize.
# To keep the filesize low, it is recommended that the '''frames per second''' be set at '''2''' during recording. If the playback quality is not good, then you may '''gradually increase the fps to 3, 4 and higher'''.
 

__TOC__

=== The following FOSS are recommended for '''screencasting''' and for '''file format conversion''' -===
# '''recordMyDesktop''' records a '''Linux''' desktop session. It produces an '''ogv''' file as default. The output file contains a video and an audio stream. It can be played using VLC player Click here for the spoken tutorial on [http://spoken-tutorial.org/recordMyDesktop recordMyDesktop].
# '''Camstudio''' captures the activities on the screen on a '''Windows''' machine. The output movie is in '''AVI''' format. It can be played on most players. Generally, the AVI file-size is very large. '''To reduce the file-size and to convert the AVI file into a WMV file''', one needs to use an editing software or video converter. Click here for the spoken tutorial on [http://spoken-tutorial.org/HowToUseCamstudio Camstudio]
## '''Windows Movie Maker''' is an editing software that is available for all the latest Windows versions. Click here for the spoken tutorial on [http://spoken-tutorial.org/Dub_Windows_Movie_Maker How to Dub using Windows Movie Maker] and [http://spoken-tutorial.org/Editing_Movie_Maker How to Edit using Windows Movie Maker]
##* '''Import the avi''' video into Windows Movie Maker.
##* Add the video to the timeline.
##* If the video is automatically split into smaller clips, then add all of them to the timeline in the right sequence.
##* Click on '''Save to my computer''' option in the '''''Finish Movie''''' segment of the LHS panel.
##* Choose '"Best Fit to filesize"'.
##* Keep increasing or decreasing till the dimensions in the bottom RHS box is an appropriate size.
##* Now click on '''Save'''.
##* Your video will be saved in '''wmv''' format.
## '''Any Video Converter''' is a universal video converter with an easy and simple user interface.
##*It supports a wide range of video formats - AVI, FLV, MOV, MP4, MPG, M2TS, MTS, RM, RMVB, QT, WMV, OGG, OGV.
##*The settings to convert from '''avi, mov, ogv''' to '''wmv''' are as follows –
<blockquote style="background-color: lemonchiffon; border: solid thin grey;">
{| border=1
!Parameter Name
!Setting
|-
|'''''Output Profile'''''
| Customised AVI Movie (*.avi)
|-
|'''''Video Options'''''
|
|-
|Video Codec
| wmv2
|-
|Frame Size
| at least 800X600 or Original (only if its greater than 800X600)
|-
|Video bitrate
| 128
|-
|Frames per second
| 2 (you could start at 2 and then go higher if quality needs to be improved)
|-
|'''''Audio Options'''''
|
|-
|Audio Codec
| mp3
|-
|Audio bitrate
| 128
|-
|Sample Rate
| 22050
|-
|Audio Channel
| 2
|-
|Disable Audio
| No
|-
|A/V Sync
| Basic
|-
|}
</blockquote> 

==='''Dubbing in Windows''' ===
Most of the time, when we dub the tutorials into other languages we find that the filesize of the resultant tutorial is high. Since, these dubbed tutorials will not be used for dubbing into any other language (always use the original tutorial for dubbing purpose), we suggest a method by which one can reduce the filesize of the dubbed tutorial.
# Ideally, save the movie in BEST QUALITY in Windows Movie Maker.
# Then convert the output .wmv file to mp4 format using ANY VIDEO CONVERTOR.
The settings for this are as follows –
<blockquote style="background-color: lemonchiffon; border: solid thin grey;">
{| border=1
!Parameter Name
!Setting
|-
|'''''Output Profile'''''
| Mobile Phone MPEG-4 Movie (*.mp4)
|-
|'''''Video Options'''''
|
|-
|Video Codec
| mpeg4
|-
|Frame Size
| 800X600 or Original (only if its greater than 800X600)
|-
|Video bitrate
| 128
|-
|Frames per second
| 2 (you could start at 2 and then go higher if quality needs to be improved)
|-
|'''''Audio Options'''''
|
|-
|Audio Codec
| mp3
|-
|Audio bitrate
| 128
|-
|Sample Rate
| 22050
|-
|Audio Channel
| 2
|-
|Disable Audio
| No
|-
|A/V Sync
| Basic
|-
|}
</blockquote> 

==='''ffmpeg command (for Linux users who are dubbing)'''===
 Click here for the spoken tutorial on [http://spoken-tutorial.org/Dubbing_on_GNU/Linux_using_Audacity_and_ffmpeg Audacity and ffmpeg]
<blockquote style="background-color: lemonchiffon; border: solid thin grey;">
{| border=1
!Command
!Description
|-
| ffmpeg -i compiling.wmv test_compiling.ogv.
|Converts a video from one format into another. In this case '''compiling.wmv''' is converted to '''test_compiling.ogv'''.
|-
| ffmpeg -i compiling.ogg new_compiling.mp3.
|Converts an audio from one format into another. In this case '''compiling.ogg''' is converted to '''new_compiling.mp3'''.
|-
| ffmpeg -i functions.ogv -an -vcodec copy TEST1.ogv.
|Removes the audio from the output and keeps only the video component. In this case '''TEST1.ogv''' will contain only the video stream from '''functions.ogv'''.
|-
| ffmpeg -i functions.ogv -vn -acodec copy TEST2.ogg
|Removes the video from the output and keeps only the audio component. In this case '''TEST2.ogv''' will contain only the video stream from '''functions.ogv'''.
|-
| ffmpeg -i TEST1.ogv -i TEST2.ogg -acodec libvorbis -vcodec copy FINAL.ogv.
|Merges the video stream with the audio stream to create the final video. In this case '''TEST1.ogv''' is the video stream, ''TEST2.ogg''' is the audio stream and '''FINAL.ogv''' is the final video created.
|-
|}
</blockquote> 

It is recommended to
# separate the video from the original, without any format conversion
# convert the dubbed audio (ogg or wma) to mp3
# stitch the mp3 audio and the video from the original
using the ffmpeg commands given above.

 

==='''File Formats that can be uploaded :''' ===
{| border=1
!
!Formats
|-
|'''Permissible formats for Original Spoken Tutorials :'''
|.ogv, .avi, .wmv, .mov, .mpeg4
|-
|'''Permissible formats for Dubbed Spoken Tutorials:'''
|.ogv, .avi, .wmv, .mov, .mpeg4
|-
|'''Permissible formats for Audio:'''
|.ogg, .wma, .mp3
|-
|}

Compatible File Formats - Revision history

St-admin: Created page with ''''Important note:''' # For all the formats mentioned below, '''the final videos should be 1 MB or lesser per minute.''' # '''The choice of fps…'