jDrum स्टूडियो लय एमुलेटर

प्रस्तावना: मेरे पास एक स्टूडियो सुसज्जित है, स्टूडियो में मैंने इलेक्ट्रॉनिक मिडी ड्रम खरीदने का फैसला किया है, लाइन से पैड के साथ एक उपकरण: मेडेली, एकै, नोवेशन।

विकास के लिए कंप्यूटर पर लिनक्स (उबंटू) स्थापित किया गया है, उपरोक्त उपकरणों का सॉफ्टवेयर लिनक्स पर समर्थित नहीं है, और वाइन और एक वर्चुअल मशीन के साथ परेशानी या ऑपरेटिंग सिस्टम के बीच स्विच करने के लायक नहीं है।

मैंने लय लिखने के लिए एक सरल साधन विकसित करने का फैसला किया।



इस लिंक पर प्रोग्राम को डाउनलोड और टेस्ट करें

डिज़ाइन


NetBeans में इंटरफ़ेस आरेखित करके डिज़ाइन की शुरुआत:

छवि

कार्य सिद्धांत


एक लाइन पर एक नमूना लोड करने के लिए सक्रिय पाठ क्षेत्र।

दबाए जाने पर 16 बटन, जो लाइन पर स्थापित नमूने को पुन: पेश करता है।

प्ले बटन एक निश्चित देरी के साथ उन पर लगाए गए नमूनों के साथ स्पीकर में ध्वनियां बजाता है (यदि एक नमूना लाइन पर स्थापित किया गया है और बटन दबाया गया है)।

कोड स्पष्ट रूप से


JDrum.java इस वर्ग में स्थित हैं:

  1. फ़्रेम प्रारंभ।
  2. तर्क का मुख्य भाग।
  3. चरों का समूह।

JDrum.java
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; import java.io.BufferedReader; import java.io.File; import java.io.InputStreamReader; import java.util.Arrays; import java.util.List; /** * * @author dj DNkey */ public class JDrum { /** * pads values */ public static int[] pads = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; /* * pads in line 1 */ public static Integer[] line1Pads = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}; /** * pads in line 2 */ public static Integer[] line2Pads = {17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32}; /** * pads in line 3 */ public static Integer[] line3Pads = {33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48}; /** * pads in line 4 */ public static Integer[] line4Pads = {49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64}; /** * pads in line 5 */ public static Integer[] line5Pads = {65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80}; /** * pads in line 6 */ public static Integer[] line6Pads = {81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96}; /** * pads in column 1 */ public static int[] column1 = {1,17,33,49,65,81}; /** * pads in column 2 */ public static int[] column2 = {2,18,34,50,66,82}; /** * pads in column 3 */ public static int[] column3 = {3,19,35,51,67,83}; /** * pads in column 4 */ public static int[] column4 = {4,20,36,52,68,84}; /** * pads in column 5 */ public static int[] column5 = {5,21,37,53,69,85}; /** * pads in column 6 */ public static int[] column6 = {6,22,38,54,70,86}; /** * pads in column 7 */ public static int[] column7 = {7,23,39,55,71,87}; /** * pads in column 8 */ public static int[] column8 = {8,24,40,56,72,88}; /** * pads in column 9 */ public static int[] column9 = {9,25,41,57,73,89}; /** * pads in column 10 */ public static int[] column10 = {10,26,42,58,74,90}; /** * pads in column 11 */ public static int[] column11 = {11,27,43,59,75,91}; /** * pads in column 12 */ public static int[] column12 = {12,28,44,60,76,92}; /** * pads in column 13 */ public static int[] column13 = {13,29,45,61,77,93}; /** * pads in column 14 */ public static int[] column14 = {14,30,46,62,78,94}; /** * pads in column 15 */ public static int[] column15 = {15,31,47,63,79,95}; /** * pads in column 16 */ public static int[] column16 = {16,32,48,64,80,96}; /** * Sound files bind on lines 1-10 */ public static Sound line1Sound = null; public static Sound line2Sound = null; public static Sound line3Sound = null; public static Sound line4Sound = null; public static Sound line5Sound = null; public static Sound line6Sound = null; /** * play speed */ public static int speed = 35; public static boolean play = false; public static Main frame; /** * * @param args the command line arguments */ public static void main(String[] args) { new Player().start(); frame = new Main(); frame.setVisible(true); } /** * Play object Sound in new Thread * @param sound */ public static synchronized void play(Sound sound){ if(sound != null){ new PlaySound(sound).start(); } } public static synchronized void loadSound(File file){ // sound } /** * Play pressed pad * @param padNum */ public static synchronized void playPad(int padNum){ //change pads value 1 to 0, 0 to 1 if(pads[padNum - 1] == 0){ JDrum.pads[padNum - 1] = 1; } else{ JDrum.pads[padNum - 1] = 0; } /** * Check line */ if(pads[padNum - 1] == 1){ playLine(padNum); } } /** * play sound file on line where press pad * @param padNum */ public static synchronized void playLine(int padNum){ int line = getPadLine(padNum); /** * Play sound from line */ if(line == 1){ JDrum.play(line1Sound); } if(line == 2){ JDrum.play(line2Sound); } if(line == 3){ JDrum.play(line3Sound); } if(line == 4){ JDrum.play(line4Sound); } if(line == 5){ JDrum.play(line5Sound); } if(line == 6){ JDrum.play(line6Sound); } } /** * get line of pressed pad * @param padNum * @return */ public static synchronized int getPadLine(int padNum){ int line = 0; List<Integer> list; list = Arrays.asList(line1Pads); if(list.contains(padNum)){ line = 1; } list = Arrays.asList(line2Pads); if(list.contains(padNum)){ line = 2; } list = Arrays.asList(line3Pads); if(list.contains(padNum)){ line = 3; } list = Arrays.asList(line4Pads); if(list.contains(padNum)){ line = 4; } list = Arrays.asList(line5Pads); if(list.contains(padNum)){ line = 5; } list = Arrays.asList(line6Pads); if(list.contains(padNum)){ line = 6; } return line; } /** * Save JDrum project to file .drum * @param fileName */ public static void save(String fileName){ //load JDrum settings to save class Save save = new Save(); save.pads = JDrum.pads; if(line1Sound != null){ save.line1Sound = line1Sound.file.getAbsolutePath(); } if(line2Sound != null){ save.line2Sound = line2Sound.file.getAbsolutePath(); } if(line3Sound != null){ save.line3Sound = line3Sound.file.getAbsolutePath(); } if(line3Sound != null){ save.line4Sound = line4Sound.file.getAbsolutePath(); } if(line5Sound != null){ save.line5Sound = line5Sound.file.getAbsolutePath(); } if(line6Sound != null){ save.line6Sound = line6Sound.file.getAbsolutePath(); } save.save(fileName); } /** * Open saved file and load to JDrum * @param filePath */ public static void open(String filePath){ Save save = new Save(); save = save.load(filePath); Sound sound; //line1Sound = new File(save.line1Sound); if(save.line1Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line1Sound)); line1Sound = sound; Main.jTextField1.setText(line1Sound.file.getName()); } if(save.line2Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line2Sound)); line2Sound = sound; Main.jTextField2.setText(line2Sound.file.getName()); } if(save.line3Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line3Sound)); line3Sound = sound; Main.jTextField3.setText(line3Sound.file.getName()); } if(save.line4Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line4Sound)); line4Sound = sound; Main.jTextField4.setText(line4Sound.file.getName()); } if(save.line5Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line5Sound)); line5Sound = sound; Main.jTextField5.setText(line5Sound.file.getName()); } if(save.line6Sound != null){ sound = new Sound(); sound.loadFile(new File(save.line6Sound)); line6Sound = sound; Main.jTextField6.setText(line6Sound.file.getName()); } JDrum.pads = save.pads; frame.changeButton(JDrum.pads); } public static void startRecording() { String command = "audio-recorder -c start"; String output = executeCommand(command); } public static void stopRecording() { String command = "audio-recorder -c stop"; String output = executeCommand(command); } public static String executeCommand(String command) { StringBuffer output = new StringBuffer(); Process p; try { p = Runtime.getRuntime().exec(command); p.waitFor(); BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream())); String line = ""; while ((line = reader.readLine())!= null) { output.append(line + "\n"); } } catch (Exception e) { e.printStackTrace(); } return output.toString(); } } 


खिलाड़ी.जावा डेमॉन:

  1. यदि स्तंभ रेखा पर स्थित है और बटन दबाया गया है, तो स्तंभों में आवाज़ें शुरू करना।
  2. प्लेयर PlaySound क्लासेस चलाता है जो एक अलग थ्रेड में काम करता है।

Player.java
 /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; import java.lang.reflect.Field; import java.util.logging.Level; import java.util.logging.Logger; import static jdrum.JDrum.playLine; /** * * @author nn */ public class Player extends Thread { Field field; String columnName; int[] column; public int step = 1; public int stopFlag = 0; public Player() { setDaemon(true); } public void run() { while (true) { if(JDrum.play){ try { //get column from JDrum by step 1-10 columnName = "column" + step; field = JDrum.class.getDeclaredField(columnName); field.setAccessible(true); column = (int[]) field.get(null); //play pads from column for(int i = 0;i <= 5;i++ ){ //System.out.println(columnName); if(JDrum.pads[column[i] - 1] == 1){ JDrum.playLine(column[i]); } } //next step step++; if(step == 17){ step = 1; stopFlag++; if(stopFlag == 2){ JDrum.play = false; stopFlag = 0; } } } catch (IllegalArgumentException ex) { Logger.getLogger(Player.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { Logger.getLogger(Player.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchFieldException ex) { Logger.getLogger(Player.class.getName()).log(Level.SEVERE, null, ex); } catch (SecurityException ex) { Logger.getLogger(Player.class.getName()).log(Level.SEVERE, null, ex); } } //speed sleep try { sleep(JDrum.speed * 10); } catch (InterruptedException e) { // handle exception here } } } } 


PlaySound.java एक अलग स्ट्रीम में ध्वनि (क्लास साउंड) शुरू करें

PlaySound.java
 /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; /** * * @author nn */ public class PlaySound extends Thread{ public Sound sound; public PlaySound(Sound sound){ this.sound = sound; } public void run() { if(sound != null){ sound.play(); } } } 


Sound.java ध्वनि प्रजनन वर्ग

Sound.java
 /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; import java.io.File; import java.io.IOException; import javax.sound.sampled.AudioFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; import javax.sound.sampled.DataLine; import javax.sound.sampled.LineUnavailableException; import javax.sound.sampled.SourceDataLine; /** * * @author nn */ public class Sound { public boolean playCompleted; public File file; public AudioInputStream stream; public AudioFormat format; public DataLine.Info info; public Clip clip; private final int BUFFER_SIZE = 128000; private File soundFile; private AudioInputStream audioStream; private AudioFormat audioFormat; private SourceDataLine sourceLine; public void loadFile(File file){ this.file = file; } public void play(){ if(file != null){ soundFile = file; try { audioStream = AudioSystem.getAudioInputStream(soundFile); } catch (Exception e){ e.printStackTrace(); System.exit(1); } audioFormat = audioStream.getFormat(); DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat); if (!AudioSystem.isLineSupported(info)) { System.out.println("Line not supported"+ info); } try { sourceLine = (SourceDataLine) AudioSystem.getLine(info); // sourceLine.open(audioFormat); } catch (LineUnavailableException e) { e.printStackTrace(); System.exit(1); } catch (Exception e) { e.printStackTrace(); System.exit(1); } sourceLine.start(); int nBytesRead = 0; byte[] abData = new byte[BUFFER_SIZE]; while (nBytesRead != -1) { try { nBytesRead = audioStream.read(abData, 0, abData.length); } catch (IOException e) { e.printStackTrace(); } if (nBytesRead >= 0) { @SuppressWarnings("unused") int nBytesWritten = sourceLine.write(abData, 0, nBytesRead); } } /** try { Clip clip = new Clip(); int waitTime = (int)Math.ceil(clip.getMicrosecondLength()/1000.0); Thread.sleep(waitTime); } catch (InterruptedException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } catch (LineUnavailableException ex) { Logger.getLogger(Sound.class.getName()).log(Level.SEVERE, null, ex); } **/ sourceLine.drain(); sourceLine.close(); } } } 


मैं NetBeans के माध्यम से Main.java इंटरफ़ेस इंटरफ़ेस नहीं अपलोड करूंगा, केवल कुछ दिलचस्प बिंदु:

Main.java
 public Main() { initComponents(); //bind load sample jTextField1.addMouseListener(new SampleEvent(1,this)); jTextField2.addMouseListener(new SampleEvent(2,this)); jTextField3.addMouseListener(new SampleEvent(3,this)); jTextField4.addMouseListener(new SampleEvent(4,this)); jTextField5.addMouseListener(new SampleEvent(5,this)); jTextField6.addMouseListener(new SampleEvent(6,this)); //bind pad click Field field; JButton dynamicButton; try { for (int buttonNum = 1; buttonNum <= 96; buttonNum++) { field = this.getClass().getDeclaredField("jButton" + buttonNum); field.setAccessible(true); dynamicButton = (JButton) field.get(this); dynamicButton.setMargin(new Insets(0, 0, 0, 0)); dynamicButton.addMouseListener(new PadEvent(buttonNum,this)); } } catch (NoSuchFieldException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (SecurityException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalArgumentException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } } 


घटकों को इनिशियलाइज़ करने के बाद, आपको ईवेंट को बटन पर असाइन करना होगा:

  1. घटनाओं को अलग-अलग वर्गों में रखा जाता है।
  2. घटनाओं को 96 बटन पर असाइन करने के लिए, परावर्तन एपीआई का उपयोग किया जाता है, जो नाम (नाम + i) द्वारा लूप में घटनाओं को असाइन करता है।


SampleEvent.java
 /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.io.File; import java.lang.reflect.Field; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFileChooser; import javax.swing.JTextField; import javax.swing.filechooser.FileNameExtensionFilter; /** * * @author nn */ public class SampleEvent implements MouseListener{ public int fieldNum; Main frame; public SampleEvent(int fieldNum, Main frame){ this.fieldNum = fieldNum; this.frame = frame; } public void mouseClicked(MouseEvent evt) { if(evt.getButton() == MouseEvent.BUTTON1) { JFileChooser fileopen = new JFileChooser(); fileopen.setCurrentDirectory(new java.io.File(System.getProperty("user.dir"))); FileNameExtensionFilter filter = new FileNameExtensionFilter("wav", "wav"); fileopen.setFileFilter(filter); int ret = fileopen.showDialog(null, " "); if (ret == JFileChooser.APPROVE_OPTION) { try { File file = fileopen.getSelectedFile(); //setup file name to sample field Field field = frame.getClass().getDeclaredField("jTextField" + fieldNum); field.setAccessible(true); JTextField value = (JTextField) field.get(this); value.setText(file.getName()); Sound sound = new Sound(); sound.loadFile(file); //play JDrum.play(sound); //setup path Field f = JDrum.class.getField("line"+ fieldNum +"Sound"); f.setAccessible(true); f.set(null, sound); //System.out.print(JDrum.line1SoundFile); //set full path //System.out.println(file.getAbsolutePath()); } catch (SecurityException | IllegalArgumentException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchFieldException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } } } if(evt.getButton() == MouseEvent.BUTTON3) { try { Field field = frame.getClass().getDeclaredField("jTextField" + fieldNum); field.setAccessible(true); JTextField value = (JTextField) field.get(this); value.setText(" "); Field f = JDrum.class.getField("line"+ fieldNum +"SoundFile"); f.setAccessible(true); f.set(null, null); } catch (NoSuchFieldException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (SecurityException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalArgumentException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } } } @Override public void mousePressed(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseReleased(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseEntered(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseExited(MouseEvent e) { // throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } } 



PadEvent.java
 /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package jdrum; import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.lang.reflect.Field; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JButton; /** * * @author nn */ public class PadEvent implements MouseListener{ public int pudNum; Main frame; public PadEvent(int pudNum,Main frame){ this.pudNum = pudNum; this.frame = frame; } @Override public void mouseClicked(MouseEvent evt) { if(evt.getButton() == MouseEvent.BUTTON1) { Field field; JButton dynamicButton; try { // change pad color field = frame.getClass().getDeclaredField("jButton" + pudNum); field.setAccessible(true); dynamicButton = (JButton) field.get(this); //change color and play pad if(!dynamicButton.getBackground().equals(new Color(145,145,145))){ dynamicButton.setBackground(new Color(145,145,145)); }else{ dynamicButton.setBackground(null); } //play pad JDrum.playPad(pudNum); } catch (SecurityException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalArgumentException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchFieldException ex) { Logger.getLogger(PadEvent.class.getName()).log(Level.SEVERE, null, ex); } //c    1  0   0  1 //     //            //System.out.println("press" + pudNum); //c    1  0   0  1 //     //            //System.out.println("press" + pudNum); } } @Override public void mousePressed(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseReleased(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseEntered(MouseEvent e) { // throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } @Override public void mouseExited(MouseEvent e) { //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } } 


बेशक, कार्यक्रम के किसी भी अल्फा संस्करण की तरह, त्रुटियां होती हैं:
javax.sound.sampled। lineUnavailableException: स्वरूप के साथ लाइन PCM_SIGNED 44100.0 हर्ट्ज, 16 बिट, स्टीरियो, 4 बाइट्स / फ्रेम, लिटिल-एंडियन समर्थित नहीं है। com.sun.media.sound.irect.AudioDevice $ DirectDL.implOpen (DirectAudioDevice.java ∗ 13) com.sun.media.sound.AbstractDadLine.open (AbstractDataLine.java:121) पर com.sun.media.Asoundia। .open (AbstractDataLine.java:153) jdrum.Sound.play (Sound.java:68) पर jdrum.PlaySoundThread.run (PlaySoundThread.java .24) /home/nn/.cache/netbeans/8.2/executor-snippets /run.xml:53: Java लौटाया गया: 1 बिल्ड किया गया (कुल समय: 1 मिनट 57 सेकंड)
त्रुटि पैदा होती है, जैसा कि मैं इसे समझता हूं, एक व्यस्त रेखा के कारण कई नियुक्तियों और कीस्ट्रोक्स के बाद।

मुझे लगता है कि कार्यक्रम का और विकास होगा:

  1. Wav फ़ाइलों के प्लेबैक को मिडी में बदलें।
  2. नोट्स जोड़ना।
  3. ट्रैक पर वॉल्यूम कंट्रोल।


अद्यतन:
1. प्लेबैक एल्गोरिथ्म की जगह।
2. कोड के अनावश्यक टुकड़े साफ हो गए हैं।
3. बेहतर सिंक्रनाइज़ेशन।
4. गति नियंत्रक जोड़ा गया।
5. प्रोजेक्ट में प्लेबैक स्पीड को जोड़ा।
6. स्टॉप प्लेबैक को शुरुआत में बंद करें।
7. आप लूप का प्लेबैक स्थान देख सकते हैं।

Source: https://habr.com/ru/post/hi428744/


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