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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:37:46 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Interface MidiChannel</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/MidiChannel.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/sound/midi/MetaEventListener.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/sound/midi/MidiDevice.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="MidiChannel.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.sound.midi</FONT><BR>Interface MidiChannel</H2><HR><DL><DT>public interface <B>MidiChannel</B></DL><P>A <code>MidiChannel</code> object represents a single MIDI channel. Generally, each <code>MidiChannel</code> method processes a like-named MIDI "channel voice" or "channel mode" message as defined by the MIDI specification. However, <code>MidiChannel</code> adds some "get" methods that retrieve the value most recently set by one of the standard MIDI channel messages. Similarly, methods for per-channel solo and mute have been added. <p> A <code><A HREF="../../../javax/sound/midi/Synthesizer.html"><CODE>Synthesizer</CODE></A></code> object has a collection of <code>MidiChannels</code>, usually one for each of the 16 channels prescribed by the MIDI 1.0 specification. The <code>Synthesizer</code> generates sound when its <code>MidiChannels</code> receive <code>noteOn</code> messages. <p> See the MIDI 1.0 Specification for more information about the prescribed behavior of the MIDI channel messages, which are not exhaustively documented here. The specification is titled <code>MIDI Reference: The Complete MIDI 1.0 Detailed Specification</code>, and is published by the MIDI Manufacturer's Association (<a href = http://www.midi.org> http://www.midi.org</a>). <p> MIDI was originally a protocol for reporting the gestures of a keyboard musician. This genesis is visible in the <code>MidiChannel</code> API, which preserves such MIDI concepts as key number, key velocity, and key pressure. It should be understood that the MIDI data does not necessarily originate with a keyboard player (the source could be a different kind of musician, or software). Some devices might generate constant values for velocity and pressure, regardless of how the note was performed. Also, the MIDI specification often leaves it up to the synthesizer to use the data in the way the implementor sees fit. For example, velocity data need not always be mapped to volume and/or brightness.<P><DL><DT><B>See Also: </B><DD><A HREF="../../../javax/sound/midi/Synthesizer.html#getChannels()"><CODE>Synthesizer.getChannels()</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#allNotesOff()">allNotesOff</A></B>()</CODE><BR> Turns off all notes that are currently sounding on this channel.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#allSoundOff()">allSoundOff</A></B>()</CODE><BR> Immediately turns off all sounding notes on this channel, ignoring the state of the Hold Pedal and the internal decay rate of the current <code>Instrument</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#controlChange(int, int)">controlChange</A></B>(int controller, int value)</CODE><BR> Reacts to a change in the specified controller's value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getChannelPressure()">getChannelPressure</A></B>()</CODE><BR> Obtains the channel's keyboard pressure.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getController(int)">getController</A></B>(int controller)</CODE><BR> Obtains the current value of the specified controller.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getMono()">getMono</A></B>()</CODE><BR> Obtains the current mono/poly mode.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getMute()">getMute</A></B>()</CODE><BR> Obtains the current mute state for this channel.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getOmni()">getOmni</A></B>()</CODE><BR> Obtains the current omni mode status.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getPitchBend()">getPitchBend</A></B>()</CODE><BR> Obtains the upward of downward pitch offset for this channel.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getPolyPressure(int)">getPolyPressure</A></B>(int noteNumber)</CODE><BR> Obtains the pressure with which the specified key is being depressed.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getProgram()">getProgram</A></B>()</CODE><BR> Obtains the current program number for this channel.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#getSolo()">getSolo</A></B>()</CODE><BR> Obtains the current solo state for this channel.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#localControl(boolean)">localControl</A></B>(boolean on)</CODE><BR> Turns local control on or off.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#noteOff(int)">noteOff</A></B>(int noteNumber)</CODE><BR> Turns the specified note off.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#noteOff(int, int)">noteOff</A></B>(int noteNumber, int velocity)</CODE><BR> Turns the specified note off.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#noteOn(int, int)">noteOn</A></B>(int noteNumber, int velocity)</CODE><BR> Starts the specified note sounding.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#programChange(int)">programChange</A></B>(int program)</CODE><BR> Changes a program (patch).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#programChange(int, int)">programChange</A></B>(int bank, int program)</CODE><BR> Changes the program using bank and program (patch) numbers.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/sound/midi/MidiChannel.html#resetAllControllers()">resetAllControllers</A></B>()</CODE><BR> Resets all the implemented controllers to their default values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD>⌨️ 快捷键说明
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