actionscript-3 - 衰落的声音不起作用

Question

当我尝试使用以下功能淡入声音时出现此问题。它只是行不通，我不知道问题出在哪里。
我想在循环声音中淡出，但是什么也没发生。我很高兴能解决这个问题。提前致谢。

用于通过事件播放声音

dispatchEvent(new CustomEventSound(CustomEventSound.PLAY_SOUND, Main.SOUND_AMBIENT, false, true, false, 999999, 0, 0, setSoundVolume));

这是播放声音的功能。停止功能与此几乎相同。

public function playSound(soundName:String, isSoundTrack:Boolean = false, fadeIn:Boolean = false, fadeOut:Boolean = false,
                              loops:int = 1, offset:Number = 0, volume:Number = 1):void {

        if (fadeIn) {
            tempSoundTransform.volume = 0;
        } else {
            tempSoundTransform.volume = volume;

        }
        tempSound = sounds[soundName];

        if (isSoundTrack) {
            if (soundTrackChannel != null) {
                soundTrackChannel.stop();
            }

            soundTrackChannel = tempSound.play(offset, loops);                              
            soundTrackChannel.soundTransform = tempSoundTransform;

            if (fadeIn) {
                for (var i:int = 0; i < fadeInInc; i++) {
                    tempSoundTransform.volume += 1 / fadeInInc;
                    soundTrackChannel.soundTransform = tempSoundTransform;  
                    if (tempSoundTransform.volume >= 1) {
                        tempSoundTransform.volume = 1;

                    }
                }
            }

        } else {
            soundChannels[soundName] = tempSound.play(offset, loops);
            soundChannels[soundName].soundTransform = tempSoundTransform;

            if (fadeIn) {
                for (var i:int = 0; i < fadeInInc; i++) {

                    tempSoundTransform.volume += 1/fadeInInc;
                    soundChannels[soundName].soundTransform = tempSoundTransform;   
                    if (tempSoundTransform.volume >= 1) {
                        tempSoundTransform.volume = 1;

                    }

                    trace("tempSoundTransform.volume " + tempSoundTransform.volume);
                }
            }

        }

    }

Answer 1

我认为您的问题是由“for”语句引起的。程序将等待语句结束，然后再设置值。如果要并行增加音量值，则应在ENTER_FRAME事件上执行此操作，或尝试Sounds fade in/out with ActionScript 3