Sooner or later, you're going to want to export your Flash movie that contains audio as an SWF file.. Publishing Documents Containing Audio Publish Sound Documents Click the File menu,
Trang 1Sooner or later, you're going to want to export your Flash movie that contains audio as an SWF file The process of publishing is relatively painless; however, there are a few considerations as to the compres-sion of the files, which will be important to the size and playability of the Flash movie Publishing requires knowledge of where the document will be used For example, if the document is to be streamed over the Internet, and your visitors have relatively low bandwidth, you would want to choose compression settings that would significantly reduce the size of the audio files It's possible that the Flash document is intended for playing off a CD/DVD; in that case, you could increase the compression settings When you're designing a Flash document, it's imperative that you understand the end game and design the document toward that goal Always remember that you can design a Flash docu-ment, but it's your visitors that ultimately will see, and use it
Publishing Documents
Containing Audio
Publish Sound Documents
Click the File menu, and then click
Publish Settings.
Click the Formats tab, and then
select the Flash (.swf) check box.
Click the Flash tab.
Click the Set buttons for Audio
Stream or Audio Event
Select other sound options as
desired:
◆ Select the Override Sound
Settings check box to override
any sound settings applied to
the individual sound files within
the active Flash document
◆ Select the Export Device
Sounds check box to export
sounds suitable for devices,
such as mobile devices, instead
of the library sound
Click the Compression list arrow,
and then select from the following
options:
◆ Disable Turns off all sound
compression options and
instructs Flash not to export
sounds
◆ ADPCM Performs minor
compression to the audio files
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Trang 2Chapter 12 Working with Sounds 321
◆ MP3 Creates audio files,
especially music files, with
excellent quality in a small file
size
◆ Raw Leaves the sounds intact
without any compression
schemes applied
◆ Speech Creates optimized files
for the human voice
Select the Convert Stereo To Mono
check box for the ADPCM and
RAW compression formats
Based on your Compression
selections from step 5, select the
following options:
◆ Sample Rate Available for
ADPCM, Raw, and Speech
compression The higher the
sample rate the better the
quality, but the bigger the file
◆ ADPCM bits Higher bit values
translate into better quality
audio, but larger file sizes
◆ Quality Available for MP3
compression The Best option
gives the finest quality, but
produces a larger file
◆ Bit Rate Available for MP3
compression The higher the
value, the better the quality and
the bigger the file
Click OK.
Select the Override Sound
Settings check box to take priority
over the individual settings applied
to the audio files
Select the Export Device Sounds
check box to export device sounds
with the published Flash movie
Click OK.
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Changing Audio File Quality
You cannot publish a Flash movie with audio files that are better quality than the originals For example, if the MP3 audio files you're using have a Bit rate of 16kbps, increasing that to 48kbps does not create a better quality audio file In fact, that’s true of most Flash objects, not just audio To increase the quality of an audio file would require the use of an audio application You can find sound programs
at www.downloads.com
For Your Information
Trang 3Flash is not a major sound editing application For example, you can't trim or cut audio files, nor can you enhance audio or reduce hum and background noises Flash expects all that to be done before you import the file However, you do have some control over when the sound begins and ends (time in, and time out), and you do have control over the volume (fade in and fade out) Making sure that your audio file is clean and smooth flowing will help with the quality of your audio file
Editing Sounds
Work with Edit Envelope
Select a keyframe on the Timeline
that contains an audio file
Click the Window menu, and then
click Properties to open the
Property Inspector
Click the Edit button.
Click the Effect list arrow, and then
select a channel, fade, or custom
effect
Drag the Time In marker to the
right to change where the audio
file begins
Drag the Time Out marker to the
left to change where the audio file
ends (the Time Out marker appears
at the end of the audio file)
Click the Envelope lines to adjust
the volume on the right or left
channels
Use the Zoom buttons to increase
or decrease the size of the audio
file in the edit window
Click the Play or Stop buttons to
test the changes to the audio file
Click the Time Marker buttons to
change the marker code from
frames to seconds
Click OK to save your changes.
IMPORTANT Adjusting an
audio file using Edit Envelope only
impacts the select instance of the
audio file The original audio file
(in the Library) is unaffected by
these changes
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Trang 4Chapter 12 Working with Sounds 323
Adobe Soundbooth is a program that allows you to record and modify sound files If you have Soundbooth installed on your computer, you can edit imported sounds in Soundbooth directly from within Flash When you’re done editing the sound file in Soundbooth, you can save the file and your changes automatically appear in Flash If you change the name or format of a sound after editing it, you’ll need to re-import the modified file back into Flash You can edit all different sound file formats
in Soundbooth If you want to non-destructively edit sounds, then use the default sound file format (ASND) in Soundbooth for the best results
Editing Sounds Using
Soundbooth
Edit a Sound Using Adobe
Soundbooth
Click the Window menu, and then
click Library to open the Library
panel
Right-click (Win) or Control-click
(Mac) the sound file you want to
edit, and then click Edit with
Soundbooth.
The sound file opens in Adobe
Soundbooth
Edit the sound file using
Sound-booth tools and commands
◆ Use Help in Soundbooth to edit
the sound file the way you
want
When you’re done, save the sound
file in Soundbooth Click the File
menu, and then click Save.
◆ To save the changes in a
non-destructive format, save the file
using the ASND file format, the
default in Soundbooth
◆ If you change the name or
format of a sound after editing
it, you’ll need to re-import the
modified file back into Flash
Quit (Mac) or exit (Win)
Soundbooth to return to Flash and
view the edited version of the
sound file in the Library panel
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Trang 6Working with Video
Introduction
The Flash Video Import Wizard lets you import a video clip as
a file that is streamed from a Flash server, progressively
downloaded from a Web server, embedded (stored in movie)
or linked (stored out of movie) It guides you through the
steps for the specific deployment method During the import
process, you have the ability to compress the video using
user-defined profiles, or preset values, set cue points, and
trim excess video It's important to understand that although
Flash can import a video file, it can't make the quality of the
video any better than the original If you receive your video
from outside sources, there is little you can do; however, if
you're the one shooting the footage, pay close attention to
lighting, camera angles, and distractions within the video
The more time and attention you spend taking the video, the
better the video will be when imported into Flash If you do
need to tweak a video file, video-editing applications such as
Adobe's Premiere (Mac/Win), and Apple's Final Cut Pro (Mac)
are excellent choice for the budding movie director
If you have a video-editing application and Flash, you can
create a movie against a blue screen and then mask the area
out using alpha channel masks They do this in the movies all
the time The process involves opening the image within a
video-editing application, and creating the transparency
using a specific color (referred to as blue or green screening),
using luminosity levels, or actually creating a mask in an
image-editing application such as, Adobe Photoshop, and
then importing the mask When you open the movie in Flash,
any other background you place behind the movie will
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What You’ll Do Use the Video Import Wizard
Work with Video on the Stage Work with Video on the Timeline
Use Movie Clips with Video Files Add Cue Points to a Video
Use Video with ActionScript Control Video Through Movie Clips
Use the FLV Playback Component Work with the Video Encoder
Work with Alpha Channel Masks Export as a QuickTime Video
Export as a FLV File
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