课程设计基于Java实现的音乐可视化项目源码.zip

package Version1; import processing.core.PApplet; import processing.core.PFont; import processing.core.PImage; import java.io.File; import ddf.minim.*; import ddf.minim.analysis.*; public class PlayerPanel extends PApplet{ AudioMetaData meta; Minim minim; AudioPlayer player; FFT fft; String filepath; Visualization1 vl = new Visualization1(); int blue = color(33, 57, 55); int white = color(237, 221, 187); int grey = color(61, 59, 38); int black = color(12, 10, 11); int playButtonAlpha = 150; int loadFileAlpha = 150; int progressBarAlpha = 150; // bar int soundVisionAlpha = 50; // visual; String state = "PLAY"; String title = ""; boolean fileLoaded = false; PFont Arial; PImage bckgrd; float volume = (float) 0.5; float volumeSliderX; public static void main(String[] args) { PApplet.main("Version1.PlayerPanel"); } // method used only for setting the size of the window public void settings(){ size(600,600); } // identical use to setup in Processing IDE except for size() public void setup(){ // stroke(255); // strokeWeight(10); Arial = loadFont("data/Arial.vlw"); volumeSliderX = width-30; minim = new Minim(this); } // identical use to draw in Processing IDE public void draw(){ fill(26, 21, 24, 20); noStroke(); rect(0, 0, width, height); if (fileLoaded) { // soundVision(); //Calls visualizer function player.setGain(volume); fill(0, 0, 0, 255); textSize(21); //Prints title out textAlign(CENTER); text(title, width/2, 30); fft = new FFT(player.bufferSize(), player.sampleRate()/2); fft.forward(player.mix); } bottons(); if(playing()) { go(); } } public void mouseReleased() { if (fileLoaded && player.position()>=player.length()) { state = "PLAY"; //Resets song when it finishes. } if (mouseX>0 && mouseX<80 && mouseY < 40) { if (state == "PLAY" && fileLoaded) { state = "PAUSE"; //Plays song. player.play(); player.setVolume(volume); //~~~~~~~~~~~~~~~~~~Volume?------------------\\ } else if (state == "PAUSE") { state = "PLAY"; //Pauses song. player.pause(); } } if (mouseX>width-110 && mouseX<width && mouseY < 40) { selectInput("Select a file to process:", "fileSelected"); //Calls selectInput if button pressed. } } public void fileSelected(File selection) { if (selection == null) { println("Window was closed or the user hit cancel."); } else { filepath = selection.getAbsolutePath(); player = minim.loadFile(filepath); fileLoaded = true; } } public boolean playing() { if(state == "PAUSE") return true; else return false; } public void bottons() { playButton(); loadButton(); volumeSlider(); } public void loadButton() { int x = width-110; int y = 0; if (mouseX>width-110 && mouseX<width && mouseY < 40) { stroke(black); if (loadFileAlpha<255) { loadFileAlpha+=10; } } else if (loadFileAlpha>150) { loadFileAlpha-=7; } stroke(grey, loadFileAlpha); fill(255, loadFileAlpha); rect(-4+x, -4+y, 120, 40); textAlign(CENTER); fill(black, loadFileAlpha); textSize(10); textFont(Arial); text("Load File", 55+x, 25+y); } public void playButton() { if (mouseX>0 && mouseX<80 && mouseY < 40) { stroke(black); if (playButtonAlpha<255) { playButtonAlpha+=10; } } else if (playButtonAlpha>150) { playButtonAlpha-=7; } stroke(white, playButtonAlpha); fill(255, playButtonAlpha); rect(-4, -4, 90, 50); textAlign(CENTER); fill(black, playButtonAlpha); textSize(10); textFont(Arial); text(state, 42, 30); } public void volumeSlider() { volume = map(volumeSliderX, width-105, width-10, -50, 50); stroke(grey, progressBarAlpha+80); line(width-105, 60, width-10, 60); fill(0, 160, 176, progressBarAlpha+80); ellipse(volumeSliderX, 60, 10, 10); if (mouseX>width-105 && mouseX<width-10 && mouseY>40 && mouseY<70 && mousePressed) { volumeSliderX = mouseX; } } public void go() { float radius = 150; translate(width/2, height/2); fill(-1, 10); stroke(-1, 50); int bsize = player.bufferSize(); beginShape(); noFill(); for (int i = 0; i < bsize; i+=30) { float x2 = (radius + player.left.get(i)*40)*cos(i*2*PI/bsize); float y2 = (radius + player.left.get(i)*40)*sin(i*2*PI/bsize); vertex(x2, y2); pushStyle(); stroke(-1); strokeWeight(1); popStyle(); } endShape(); noFill(); // 给定长度为1024的信号，频谱中将有512个频带，每个频带的宽度为23Hz for (int i = 0; i < fft.specSize(); i+=2) { if(fft.getBand(i) > 0.2) { float rad = map(i, 0, fft.specSize() - 200, 0, (float) (2 * Math.PI)); rad = (float) (rad - Math.PI/2); float posX = (float) ((radius + fft.getBand(i)) * cos(rad)); float posY = (float) ((radius + fft.getBand(i)) * sin(rad)); line(radius * cos(rad), radius * sin(rad), posX, posY); } else { noStroke(); } } } }