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JavaTM 2 Platform Std. Ed. v1.3.1 |
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javax.sound.midi
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 128 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:
Instrument,Instrument.getPatch(),MidiChannel.programChange(int, int),Synthesizer.loadInstruments(Soundbank, Patch[]),Soundbank,Sequence.getPatchList()
| Constructor Summary | |
Patch(int bank,
int program)
Constructs a new patch object from the specified bank and program numbers (which should be in the range from 0 to 127). |
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| Method Summary | |
int |
getBank()
Returns the number of the bank that contains the instrument whose location this Patch specifies. |
int |
getProgram()
Returns the index, within a bank, of the instrument whose location this Patch specifies. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
Patch
public Patch(int bank,
int program)
- Constructs a new patch object from the specified bank and program
numbers (which should be in the range from 0 to 127).
- Parameters:
bank- the bank indexprogram- the program index
| Method Detail |
getBank
public int getBank()
- Returns the number of the bank that contains the instrument
whose location this
Patchspecifies.- Returns:
- the bank number, whose range is from 0 to 127
- See Also:
MidiChannel.programChange(int, int)
getProgram
public int getProgram()
- Returns the index, within
a bank, of the instrument whose location this
Patchspecifies.- Returns:
- the instrument's program number, whose range is from 0 to 127
- See Also:
MidiChannel.getProgram(),MidiChannel.programChange(int),MidiChannel.programChange(int, int)
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JavaTM 2 Platform Std. Ed. v1.3.1 |
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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