用Authorware制作CAI课件的声音使用技巧

Using Skills of Sound in Authorware While making CAI Courseware

声音是携带信息的重要载体,在多媒体课件中起着举足轻重的作用。在制作多媒体CAI课件时,经常需要制作不中断的音乐作为背景音乐。在Authorware中使用声音图标时,后面图标的声音会覆盖掉前面的声音,可以使用函数调用MIDI音乐来实现背景音乐的播放;通过动态地控制Windows的WAV声音成分的大小来达到相对音量的控制平衡;将一个双声道文件中录制两种不同的声音,通过控制Windows的声音输出左右声道平衡来实现双语输出。

Sound is an important medium carrying information, which plays an important part in the multimedia courseware. Uninterrupted music often needs to be made as background when making CAI courseware. Because the next icon＇s sound will cover the previous sound when using the sound icon of authorware and the function to transfer the MIDI music can realize the broadcast of background music. Dynamically controlling the WAV sound ingredient of Windows can achieve the control balance of the relative volume. Typing two kinds of different sounds in a dual track document, the hi- lingual output by controlling the sound track balance of the sound output of Windows can herealized.