Subtitles of the Movie

In this movie, I review how to edit your audio clips using the Edit envelope. Using this very handy Edit envelope, you can define the starting point of a sound or control the volume of the sound as it plays. It can also change the point at which a sound starts and stops playing. This is particularly useful for making sound files smaller by removing unused sections. To use the Edit envelope you'll need to add a sound to your timeline by dragging and dropping it from the library onto the stage. It'll then be inserted in the closest key frame where you have a frame selected. So in other words, if I'm - go ahead and undo this, if I click on frame 15 here, and drag and drop an audio file onto the stage, notice that it gets actually inserted in the last key frame there - in the previous blank key frame, in frame 1. So with that key frame selected over here in the properties inspector, you have an Edit button. Click on that, and that'll bring up this very handy Edit envelope. To change the start and end points of a sound, you'll want to drag the Time In and Time Out controls here in the Edit envelope. Those are these controls here in between the two wav forms. There's the Time In. So in this case, I'm going to start the sound half a second in from the beginning, and I can also go here to the end and set the Out Point to, in this case - let's go ahead and scroll over here to the 21.5 second point in the clip. Notice that down here I have some controls for playing and stopping the sound, for zooming in and zooming out. I can change the display from frames to seconds. So here's the frames - that's frame 250 right here corresponding to about 20.4 seconds there, 21.3 seconds right there. To change the Sound envelope, drag the envelope handles to change levels at different points in the sound. Let me go ahead and use the scroll here at the bottom to scroll to the very beginning of my audio clip. And then there is a edit node here at the beginning, and I can simply click on that and drag it up or down to increase or decrease the audio volume. This will decrease or increase the audio volume of the entire audio clip. I can also change volumes by adding more control nodes here, and notice that that let's me adjust the volume at any point during playback. And because I have - let's go ahead and zoom out here - I have frames set up here, or time, either one, by clicking on the buttons on the bottom, I can control the volume at any point during playback. So in this case starting at 3 seconds, the volume will go back up again in the first second it goes down. So this is very handy tool, very visual, very easy to use, very intuitive for managing and manipulating the volume of an individual clip. This is probably most used for longer audio files, music files that you've got playing back. And if you want to Fade Out, you can also have pre-built effects here. Fade Out, notice, will take your volume envelope and turn it down there as the music is ending. So it is going to start to fade after about 16 and a half seconds of playback. And by the time the clip is over, it will have faded out completely. If you press the play button here in the envelope, you can hear back your, your work. So let me go ahead and set up a fade in here, and then play it back so you can hear it real clear. In fact, let me set up a fade in and then a fade out again to make it real obvious that we are manipulating the envelope here on the playback. So let's go out to second 3, and then by the time that it gets to second number 6, let's start fading this out again, like so. So the volume will decrease after 6 seconds. It'll start here, fade in to 3 seconds, play for awhile, then start fading out again. So let's go ahead and play that back. So there you heard the music fade in with this part of the envelope, was playing full all the way to, or by second 3, and then by second 6 it faded out quickly, and then very slowly faded back in to full volume. So that'll conclude this section of the tutorial on working with sound in Flash CS3 Professional. In this section you learned how to import sounds into the library, how to compress and work with sounds. You've also learned how to modify sound settings in the property inspector, and also here in the end, you learned about editing sound in the Edit envelope.