【发布时间】:2022-01-09 09:52:35
【问题描述】:
我一直在与 Comp sci 类的同行一起研究这个项目,但我不知道如何让 SFX 和音乐拥有自己独立的音量控制。音乐和 SFX 都可以在需要时播放(悬停/单击按钮、菜单音乐等),我为它们制作了滑块(音乐音量和 SFX 音量),但由于某种原因,只有音乐可以被控制。我已经在这里坐了几个小时试图弄清楚为什么它不起作用。 FloatControl 增益确实随滑块更新(我打印了它的值,它工作得很好,只是没有更新音效的实际音量)。我还通过注释掉关于它的滑块控件、音频输入流、增益控制等的所有内容来摆脱与音乐有关的所有内容;就好像 SFX 是程序中唯一与音频相关的东西,但它仍然不起作用。我不明白为什么,因为代码与音乐的代码相同(只是“音乐”现在是“声音”)。
下面的代码并不意味着它本身就可以运行,因为到目前为止实际代码是 605 行,而且这里发布的时间太长了。它确实包含核心组件,所以如果你想设置它来工作,你必须制作 JFrame 和所有按钮,或者让我发布完整的代码和声音文件。
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.sound.sampled.*;
import java.awt.event.*;
import javax.swing.border.Border;
import javax.swing.BorderFactory;
import java.io.*;
import java.io.File.*;
import java.io.IOException;
public class AudioTesting {
// Declare Global Objects
static final String[] SFXName = {"menuHover", "buttonEnter", "buttonLeave", "gameStart"};
static final String[] TrackName = {"Bossfight_Incomplete"};
static final String userName = System.getProperty("user.name");
static Clip sound;
static Clip music;
static JSlider musicVolumeSlider;
static JSlider soundVolumeSlider;
public static void main(String []args){
GameSetting();
}
public static void GameSetting(){
musicVolumeSlider = new JSlider(-45,6,6);
soundVolumeSlider = new JSlider(-45,6,6);
musicVolumeSlider.setMajorTickSpacing(5);
musicVolumeSlider.setMinorTickSpacing(1);
musicVolumeSlider.setPaintTicks(true);
//musicVolumeSlider.setPreferredSize(new Dimension(SLIDER_SIZE_X,SLIDER_SIZE_Y));
// musicVolumeSlider.setBackground(menuColor);
musicVolumeSlider.addChangeListener(new SliderListener());
soundVolumeSlider.setMajorTickSpacing(5);
soundVolumeSlider.setMinorTickSpacing(1);
soundVolumeSlider.setPaintTicks(true);
// soundVolumeSlider.setPreferredSize(new Dimension(SLIDER_SIZE_X,SLIDER_SIZE_Y));
// soundVolumeSlider.setBackground(menuColor);
soundVolumeSlider.addChangeListener(new SliderListener());
}
//manages the loading and playing of sfx
public static void SFXManager(int sfx){
try{
sound = AudioSystem.getClip();
File sfxFile = new File("C:\\Users\\" + userName + "\\Documents\\" + SFXName[sfx] + ".wav");
sound.open(AudioSystem.getAudioInputStream(sfxFile));
}catch (Exception ex){}
sound.flush();
sound.start();
}
// manages the loading and playing of music tracks
public static void MusicManager(int track){
try{
music = AudioSystem.getClip();
File musicFile = new File("C:\\Users\\" + userName + "\\Documents\\" + TrackName[track] + ".wav");
music.open(AudioSystem.getAudioInputStream(musicFile));
}catch (Exception ex){}
music.start();
music.loop(Clip.LOOP_CONTINUOUSLY);
}
static class SliderListener implements ChangeListener {
public void stateChanged(ChangeEvent e) throws IllegalArgumentException {
float currentMusicVolume = 0;
float currentSoundVolume = 0;
FloatControl musicGainControl = (FloatControl) music.getControl(FloatControl.Type.MASTER_GAIN);
FloatControl soundGainControl = (FloatControl) sound.getControl(FloatControl.Type.MASTER_GAIN);
//-------------------------------------------------------------PROBLEM AREA v v v
//For changing the volume of the music (this works just fine)
if (e.getSource() == musicVolumeSlider){
currentMusicVolume = musicVolumeSlider.getValue();
//if the slider is all the way at it's lowest, set the volume to -80 (i.e. mute)
if (currentMusicVolume == -45){
currentMusicVolume = -80;
}
musicGainControl.setValue(currentMusicVolume); // Reduce volume by slider value
}
//for changing the volume of the sfx
if (e.getSource() == soundVolumeSlider){
currentSoundVolume = soundVolumeSlider.getValue();
//if the slider is all the way at it's lowest, set the volume to -80 (i.e. mute)
if (currentSoundVolume == -45){
currentSoundVolume = -80;
}
soundGainControl.setValue(currentSoundVolume); // Reduce volume by slider value
}
}
}
//-------------------------------------------------------------PROBLEM AREA ^ ^ ^
// I didn't implement it in here, but here is where all the mouse and event listeners go for the different buttons
// If a button is hovered over or pressed, it plays a sound from the index that corresponds with that sound
// I.e. if you hover over a button, call SFXManager(0); which plays the first sound in the array (buttonHover.wav) etc.
}
【问题讨论】: