如何在按下特定键时播放声音？

Question

我正在尝试创建一个鼓小程序。所以鼓的每个部分在键盘上都有相应的键，如果你按下它，就会发出声音。如何使用按键播放声音？

Answer 1

好的。所以你需要不同架子鼓声音的样本，例如。 Kick、Snare、Hihat、crash 等。最好是 .wav 格式。所以你要做的就是使用 Event Handling，当按下一个键时播放相应的音频。确保所有音频样本都在与当前项目相同的目录中。尽管编写代码并为您完成作业并不是这里要遵循的政策，但我会编写一个结构来向您解释这件事。

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class DrumApplet extends Applet implements KeyListener{

    //declaring Audio variables
    AudioClip kick, snare, hat_close, hat_opem, crash, tom;

    @Override
    public void init(){
        kick = this.getAudioClip(getDocumentBase(), "kick.wav");
        snare = this.getAudioClip(getDocumentBase(), "snare.wav");
        //load all other audio samples

        addKeyListener(this); //to detect the press of a key
    }

    @Override
    public void paint(Graphics g){
        //display message as to which key to press to play a sound
    }

    @Override
    public void keyPressed(KeyEvent K){

        char X = K.getKeyCode();
        if(X == 'K')
        kick.play(); //play kick.wav when K is pressed

        if(X == 'S')
        snare.play(); //play snare.wav when S is pressed

        if(X == 'T')
        tom.play(); //play tom.wav when T is pressed

        if(X == 'O')
        hat_open.play(); //play hat_open.wav when O is pressed

        //write if statements for the rest of the Keys

        repaint();
    }

    @Override
    public void keyReleased(KeyEvent K){}

    @Override
    public void keyTyped(KeyEvent K){}

}

希望这能帮助您理解。

如何在按下特定键时播放声音？

How to play a sound when a specific key is pressed?

java

event-handling

applet