Class Patch

java.lang.Object
javax.sound.midi.Patch

public class Patch extends Object
A Patch object represents a location, on a MIDI synthesizer, into which a single instrument is stored (loaded). Every Instrument object has its own Patch object that specifies the memory location into which that instrument should be loaded. The location is specified abstractly by a bank index and a program number (not by any scheme that directly refers to a specific address or offset in RAM). This is a hierarchical indexing scheme: MIDI provides for up to 16384 banks, each of which contains up to 128 program locations. For example, a minimal sort of synthesizer might have only one bank of instruments, and only 32 instruments (programs) in that bank.

To select what instrument should play the notes on a particular MIDI channel, two kinds of MIDI message are used that specify a patch location: a bank-select command, and a program-change channel command. The Java Sound equivalent is the programChange(int, int) method of MidiChannel.

See Also:
  • Constructor Summary

    Constructors
    Constructor
    Description
    Patch(int bank, int program)
    Constructs a new patch object from the specified bank and program numbers.
  • Method Summary

    Modifier and Type
    Method
    Description
    int
    Returns the number of the bank that contains the instrument whose location this Patch specifies.
    int
    Returns the index, within a bank, of the instrument whose location this Patch specifies.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    Creates and returns a copy of this object.
    boolean
    Indicates whether some other object is "equal to" this one.
    protected void
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    Returns the runtime class of this Object.
    int
    Returns a hash code value for this object.
    final void
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    Wakes up all threads that are waiting on this object's monitor.
    Returns a string representation of the object.
    final void
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
  • Constructor Details

    • Patch

      public Patch(int bank, int program)
      Constructs a new patch object from the specified bank and program numbers.
      Parameters:
      bank - the bank index (in the range from 0 to 16383)
      program - the program index (in the range from 0 to 127)
  • Method Details