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5. How To use?

 
    ... It is very, very simple! 

OpenEyA-for-YouTube do not need any extra hardware, by default you can use the built in webcam for the video and photo (or Screen grab) and the Mic of your PC Laptop. For the modality external ’Webcam’, plug in the USB Webcam (Linux compatible, UVC Driver) and then launch the OpenEyA icon of Fig.2. Proceed further as indicated next.


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5.1 Setup

The OpenEyA-for-YouTube Graphics User Interface (GUI) is shown in Fig.5. It allows to configure (and preview), to record and to view the synchronized audio-photo-video taken from your own computer through a built in webcam, the desktop or USB webcam (e.g., HD).


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Fig.5: OpenEyA-for-YouTube Graphics User Interphase (GUI).


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5.1.1 General Settings

By selecting ’Settings’ from one of the upper links in the GUI (Fig.5), it is possible to select timing for the photos/slides as shown in Fig.6.


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Fig.6: OpenEyA-for-YouTube general settings.


NOTE Defaults are:

 
The default directory for the stored recordings is User's Desktop

and

 
a value of 6 sec is the default used for taking and saving 
photos/frames or grabing the PC screen.



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5.1.2 Video Test

Select ’Video device’ (usually ’video0’ or ’video2)’ depending if your are using your computer’s built in webcam or an external USB webcam (with Linux UVC Driver).

Click ’Start video’ to test and see the video image and positionate the webcam.


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5.1.3 Slide Preview

Click ’Take a photo’ to test, get a picture or capture! Wait some seconds until every taken image appears in the Photo preview!

When using an external (HD-)Webcam, with ’Take a photo’ you can re-positionate the webcam if needed using the button ’Test’.


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5.1.4 Audio gains

To test the audio quality, select first ’Audio device’ to be used and then click ’Start audio’ to check the correct audio level (see GUI in Fig.6).

From the menu ’Audio device’ you can select your computer’s Microphone or an external USB omni-directional Microphone.

It is possible to make a recording audio test of few secs (the small windows appears when pressing Record of Fig.7) and to Play it to listen the audio quality.


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5.2 Recording

After all these parameters have been set: Video Test, Slide Preview and Audio gains, it is possible to start recording.


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Fig.7: OpenEyA-for-YouTube audio test.


Within the Recording GUI shown in Fig.8, it is possible to start an Immmediate recording ’Record now’ (yellow button) or to program recording(s) by selecting the ’Alarms’ options (see Fig.9).

Record now

Select the time lag in minutes to activate the recodings using the Setup of previous sections and press ’Record now’. OpenEyA allows to record slots of 15 min up to one hour continuously and automatically. A ’Beep’ sound is issued on Stop or completion of an Immediate recording. If you need to record for longer periods then you can set the ’Alarms’.

Pause

You can Pause the recording and restart the recording at any time until the initial time lag given is completed (actual recording time). By pressing Stop you can fully stop the running recording before it ends.


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Fig.8: Pause yellow button of the OpenEyA-for-YouTube GUI.

Record Title: Captioning

Select this option to add a short text/captioning to your video output when recorded using Record now. At present, the text limit is 240 characters which will appear listed as lines (up to 12 lines) as in Fig.11. Note that some characters are not allowed. This feature is useful to guide YouTube viewers about the contents of your video lecture.

Alarms

Select this option, to program future automated recordings of up to one hour and half maximum each. You can Add, Modify, Delete alarms to build on a given schedule of recordings. you can Stop the current recording via Alarms at any time by pressing the STOP current recording button. Captioning does not work with the Alarms.

The ’Current time’ level on the right of the OpenEyA-for-YouTube GUI indicates to time left (or, alternatively, can be seen as the time passed) to complete the recording.


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Fig.9: Example of immmediate recording Record now (30 mins) (above the Alarms options).


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