java.lang.Object
javax.sound.midi.Patch
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
.
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Constructor Summary
ConstructorDescriptionPatch
(int bank, int program) Constructs a new patch object from the specified bank and program numbers. -
Method Summary
Modifier and TypeMethodDescriptionint
getBank()
Returns the number of the bank that contains the instrument whose location thisPatch
specifies.int
Returns the index, within a bank, of the instrument whose location thisPatch
specifies.
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Constructor Details
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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)
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Method Details
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getBank
public int getBank()Returns the number of the bank that contains the instrument whose location thisPatch
specifies.- Returns:
- the bank number, whose range is from 0 to 16383
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getProgram
public int getProgram()Returns the index, within a bank, of the instrument whose location thisPatch
specifies.- Returns:
- the instrument's program number, whose range is from 0 to 127
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