javax.sound.midi

Java MIDI - ControllerEventListener (How to change the instrument)

由 别说谁变了你拦得住时间么 提交于 2020-06-01 06:58:05
问题 I'm working on a program which generates and plays MIDI Events. I've implemented the ControllerEventListener Interface for I want to print messages every time one of the 15 notes is played. The problem is, that I can't change the instrument the notes are played by anymore (by that I've to say that my computer don't uses the default Piano, but a drum or something similar if I add the ControllerEvent to the track) I already looked up the involved methods in the Java API specifications, but I

Receive midi input with javax.sound.midi

由 放肆的年华 提交于 2020-01-15 09:41:52
问题 I would like to have a program that could do something when it gets a midi input. For instance when I click button 1 on my controller it should print "You clicked btn 1" and when I click button 2 it should print "You clicked btn 2". I tried using the javax.sound.midi library but all the examples in forums or on youtube didn't work for. This worked the most for me. It printed all of the Midi Devices of my PC but it didn't receive anything. Can anybody help? package de.snke.dev; import javax

How to get integer value from byte array returned by MetaMessage.getData()?

由 时间秒杀一切 提交于 2019-12-24 08:38:00
问题 I need to get the tempo value from midi file. I found out, that the set_tempo command has value 0x51, so i have this piece of code: for (int i = 0; i < tracks[0].size(); i++) { MidiEvent event = tracks[0].get(i); MidiMessage message = event.getMessage(); if (message instanceof MetaMessage) { MetaMessage mm = (MetaMessage) message; if(mm.getType()==SET_TEMPO){ // now what? mm.getData(); } } } But the method getData() returns an array of bytes! How can I convert it to normal human form, a.k.a.

Receiving com.sun.media.sound.FastShortMessage from MIDI Controller in Java, how to decode?

由 匆匆过客 提交于 2019-12-13 05:06:32
问题 I have a java program set up that takes MIDI input from a controller and ideally does different things (not necessarily related to playing synthesizer output) depending on which midi note is sent. My code is heavily based on the code in this SO question: Java getting input from MIDI keyboard, specifically I'm using the entire MidiInputReceiver class. I've modified it to do System.out.println(msg) as well as printing "MIDI received, and it appears to work in as far as every time I press a key

JFugue 5 external midi device

由 那年仲夏 提交于 2019-12-12 01:27:05
问题 Been trying for a long time to send a sequence to a midi device with jFugue 5: MusicReceiver device = getDeviceByName("name"); Player player = new Player(); Pattern pattern = new Pattern("A"); device.sendSequence(player.getSequence(pattern)); Can't go beyong "Unhandled exception type MidiUnavailableException" on "device.sendSequence" . static MidiDevice.Info getDeviceInfoByName(String name) { for (MidiDevice.Info info : MidiSystem.getMidiDeviceInfo()) { if (info.getName().equals(name)) {

Java :Painting Random Shapes on JFrame against Music Played

由 坚强是说给别人听的谎言 提交于 2019-12-11 08:15:06
问题 I am trying to paint JFrame when music is played , these shapes are created on random no calculation and when a there is some music played there pops up a JFrame and these shapes are painted there, problem is that when i run this code there is no musical sound and shapes drawn but just a frame pops up and nothing else , Plase check this code and help me to correct it .. public class MusicBeatsDrawing { static JFrame frame; DrawPanel dp =new DrawPanel(); public static void main(String[] args)

Newer version of JRE doesn't load soundbank but older version does

由 家住魔仙堡 提交于 2019-12-10 14:03:45
问题 I have the following code that tries to load a soundbank. I've tested the code on Windows 7 with JRE 1.6.03 and 1.6.43. The old version of the JRE (1.6.03) works fine but the new version throws an exception. What's going on? public Main() { try { Synthesizer synth = MidiSystem.getSynthesizer(); synth.open(); BufferedInputStream soundBankStream = new BufferedInputStream( getClass().getClassLoader().getResourceAsStream( "soundbank.gm")); synth.loadAllInstruments(MidiSystem.getSoundbank

Java Midi - How to get notes from midi whilst it's playing

由 余生颓废 提交于 2019-12-01 12:31:48
I've searched for a while now, and can't find an answer for what I want to do. I want to play a midi file, and display the notes on the screen as it plays. When a note stops playing, it should disappear off the screen. I can play a midi with a sequencer, but have no idea of how to get the notes its playing, or when it stops playing a note. I've looked into ControllerEventListeners and MetaEventListeners, but still don't know how to do this. Any help would be appreciated. This is a FAQ . Connect you own Receiver to the sequencer's Transmitter. See the DumpReceiver in the MidiPlayer for an

Java Midi - How to get notes from midi whilst it's playing

由 泪湿孤枕 提交于 2019-12-01 10:09:40
问题 I've searched for a while now, and can't find an answer for what I want to do. I want to play a midi file, and display the notes on the screen as it plays. When a note stops playing, it should disappear off the screen. I can play a midi with a sequencer, but have no idea of how to get the notes its playing, or when it stops playing a note. I've looked into ControllerEventListeners and MetaEventListeners, but still don't know how to do this. Any help would be appreciated. 回答1: This is a FAQ.
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