14. Wait a few seconds and ScreenFlow will open up with the timeline at the bottom. Because Record Computer Audio had been selected in the black menu, the timeline will have both the audio and video.
15. In the sample from the YouTube video, a monkey at a zoo howls. Then a little boy mimics the monkey. Then the monkey mimics the boy.
16. Click the play button to watch the entire clip.
17. Decide which part of the clip you wish to keep.
18. Drag the scrubber to the beginning of that part, right click and select “split clip”. That will split the clip into 2 parts.
19. Select the part you want to discard. If you don’t want to discard the entire clip, do point #18 over again on the smaller segment and make an even smaller segment. Now select the part you wish to delete.
20. Press the delete button.
21. Go to the end of the part you wish to keep and go through the same process. Keep selecting the parts you want to discard and then pressing the delete button.
22. Play the video again to make sure that is what you want to keep.
23. Delete any left-over clips that you do not want.
Aspect Ratios in Smartphone Videos
24. You will now work with the aspect ratio.
25. That represents the ratio between the length and the height.
26.YouTube uses 16:9 aspect ratio players. If you are uploading a non-16:9 file, it will be processed and displayed with pillar boxes (black bars on the left and right) or letter boxes (black bars at the top and bottom).
27. To keep the 16:9 ratio, this tutorial will always use an aspect ratio of 1280 x 720.
28. This is a picture of what you see in the amateur smartphone video. It is harder to edit when the video is so narrow. However, it presents us with a challenge that will be a useful learning tool.
29. Click the icon to set the size of the viewing window.
30. Where it says “canvas”, change the first and second numbers to 1280 and 720 respectively and then click on “Apply”.
31. Select the video and then slide the scale bar back and forth so that the ideal amount of video is within the canvas.
32. If you click on the video, you can drag it around so that it is centred properly.
33. Now play the video again.
Lengthening Smartphone Videos
34. It is not quite long enough. So, using your split clip feature, isolate a section of the monkey howling. Press Cmd C to copy it into your clipboard.
35. Move the scrubber to the right end of the last clip. Press Edit > Paste to copy that segment to create a final clip.
36. Save with a descriptive name.
37. Click File > Publish to YouTube and fill in the blanks. (If you do not have a YouTube account yet, go to lesson 5). Your smartphone video should now look something like the video below.
Next page first page of smartphone video lesson