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本文是在同一个游戏中移植在不同机型时所做的对声音的处理，考虑到性能的要求，对每种类型的手机做了一定的要求
s40 中的声音处理： 1) import com.nokia.mid.sound.*; 2) sound soundplayer; void initsound(){ soundplayer = new sound(b_main,1); if(m_playsound == 1){ soundplayer.play(0); } }3) byte[] b_main = { (byte)0x02,(byte)0x4a,(byte)0x3a,(byte)0x40, (byte)0x04,(byte)0x01,(byte)0x1f,(byte)0x1e, (byte)0x54,(byte)0x88,(byte)0x38,(byte)0x84, (byte)0x44,(byte)0xbc,(byte)0x4a,(byte)0xc4, (byte)0xa0,(byte)0xa9,(byte)0x0b,(byte)0x91, (byte)0x27,(byte)0x22,(byte)0xa2,(byte)0xb1, (byte)0x31,(byte)0x13,(byte)0x88,(byte)0x00, };4) static int m_playsound = 1;5) 在程序中对声音的控制 m_playsound = (byte)(1 - m_playsound); if(m_playsound == 1){ try{ soundplayer.play(0); } catch(exception e){} } if(m_playsound == 0){ try{ soundplayer.stop(); } catch(exception e){} }//----------------------------------------------------使用 ott 文件 在nokia 40或 60中1) 定义数据结构public class emsound{ public int type; public byte[] data; public emsound(byte[] data, int type) { this.type = type; this.data = data; }}2)import com.nokia.mid.ui.*;import com.nokia.mid.sound.*;3) sound soundplayer; soundlistener soundlistener = new emsoundlistener(); emsound currentsound = null; boolean soundplaying = false; boolean soundenable = true; class emsoundlistener implements soundlistener { public void soundstatechanged(sound sound, int event) { switch (event) { case sound.sound_stopped: soundplaying = false; break; case sound.sound_playing: soundplaying = true; } } } public emsound loadsound(string resfile, int resid) { emsound sound; try { inputstream is = getclass().getresourceasstream(resfile + "/" + resid + ".ott"); int len = (int) is.skip(10000); is.close(); is = getclass().getresourceasstream(resfile + "/" + resid + ".ott"); byte[] barr = new byte[len]; is.read(barr); is.close(); sound = new emsound(barr, sound.format_tone); } catch (exception ex) { sound = null; } return sound; } public void playsound(emsound sound, int count) { if (!soundenable) { return; } try { //colico if (soundplaying) { stopsound(); } if (soundplayer == null) { soundplayer = new sound(sound.data, sound.type); soundplayer.setsoundlistener(soundlistener); currentsound = null; } if (sound != currentsound) { soundplayer.release(); soundplayer.init(sound.data, sound.type); currentsound = sound; } soundplayer.play(count); } catch (exception ex) { soundplaying = false; } } sound[] soundplayers; public void playsound( emsound sound[], int loc) { if (!soundenable) { return; } try { if (soundplaying) stopsound(); if (soundplayers == null) { soundplayers = new sound[sound.length]; system.out.println("sounds == null"); for (int i=0; i<sound.length ; i++ ){ soundplayers[i] = new sound( sound[i].data, sound[i].type ); soundplayers[i].setsoundlistener( soundlistener ); soundplayers[i].init(sound[i].data, sound[i].type); } } long now = system.currenttimemillis(); soundplayers[loc].play(1); system.out.println("playing sounds"); system.out.println("playing sounds time"+(system.currenttimemillis()-now) ); } catch(exception ex) { soundplaying = false; } } public void stopsound() { if (!soundenable) { return; } if (soundplayer != null) { //colico soundplayer.stop(); } } public boolean issoundplaying() { return soundplaying; } public boolean issoundenable() { return soundenable; } public void setsoundenable(boolean e) { if (!e) { stopsound(); } soundenable = e; }在v300中 1).public class emsound{ public string type; public byte[] data; public emsound(byte[] data, string type) { this.type = type; this.data = data; }}2).import javax.microedition.media.player;import javax.microedition.media.playerlistener;import javax.microedition.media.manager;import javax.microedition.media.control.*;3). //sound soundplayer; playerlistener soundlistener = new emsoundlistener(); player soundplayer; emsound currentsound = null; boolean soundplaying = false; boolean soundenable = true; class emsoundlistener implements playerlistener { public void playerupdate(player player, string event, object eventdata) { //soundstatechanged(int event) if (event == playerlistener.stopped) { soundplaying = false; } if (event == playerlistener.started) { soundplaying = true; } } } public emsound loadsound(string resfile, int resid) { emsound sound; try { inputstream is = getclass().getresourceasstream(resfile + "/" + resid + ".mid"); int len = (int) is.skip(10000); is.close(); is = getclass().getresourceasstream(resfile + "/" + resid + ".mid"); byte[] barr = new byte[len]; is.read(barr); is.close(); sound = new emsound(barr, "audio/midi"); } catch (exception ex) { sound = null; } return sound; } public void playsound(emsound sound, int count) { if (!soundenable) { return; } try { if (soundplaying) { stopsound(); } if (soundplayer == null) { soundplayer = manager.createplayer(new bytearrayinputstream(sound.data), sound.type); soundplayer.addplayerlistener(soundlistener); currentsound = null; } if (sound != currentsound) { soundplayer.close(); soundplayer = manager.createplayer(new bytearrayinputstream(sound.data), sound.type); currentsound = sound; } soundplayer.start(); } catch (exception ex) { soundplaying = false; system.out.println(ex.tostring()); } } public void stopsound() { if (!soundenable) { return; } if (soundplayer != null) { try { soundplayer.stop(); } catch (exception e) { system.out.print(e.tostring()); } } } public boolean issoundplaying() { return soundplaying; } public boolean issoundenable() { return soundenable; }3.读取mid文件1)import javax.microedition.media.*;2) player player; void initsound() { try { player = manager.createplayer(getstream("/sound/b_main.mid"), "audio/midi"); player.realize(); player.setloopcount(100000); } catch (exception e) { e.printstacktrace(); } }3) //在程序中对声音的控制 m_playsound = (byte) (1 - m_playsound); if (m_playsound == 1) { try { player.start(); } catch (exception e) {} } if (m_playsound == 0) { try { player.stop(); } catch (exception e) {} }///---------------end转载地址：http://hbedi.baihongyu.com/