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Class quicktime.app.audio.NoteChannelControl

java.lang.Object
   |
   +----quicktime.app.audio.NoteChannelControl

public class NoteChannelControl

extends Object

implements MusicPart

NoteChannelControl(int)

Create a new NoteChannelControl and a NoteChannel with the specified instrument and polyphony of 1.

NoteChannelControl(int, int)

Create a new NoteChannelControl and a NoteChannel with the specified instrument and polyphony.

NoteChannelControl(NoteChannel)

Create a new NoteChannelControl from the given NoteChannel

getBalance()

This method gets the balance of the this object.

getInstrumentName()

Returns the name of the current instrument for this part.

getNoteChannel()

This method gets the NoteChannel being controlled by this object.

getVolume()

This method will get the volume of this object.

isMuted()

Returns the current mute status

playNoteFor(float, int, int)

Plays the supplied note for the given duration.

selectInstrument(String)

This method allows for the class to allow some selection process whereby the user would choose a particular instrument that will be consequently used by a MusicPart to produce the sounds that it plays.

setBalance(float)

This method sets the balance of this object.

setMuted(boolean)

Allows the muting of the specific channel.

setVolume(float)

This method will set the volume of this object.

 public NoteChannelControl(int gmNumber) throws QTException

Create a new NoteChannelControl and a NoteChannel with the specified instrument and polyphony of 1. The resultant NoteChannel maybe able to play more than one note simultaneously.

Parameters:

gmNumber - the specified general MIDI instrument number

 public NoteChannelControl(int gmNumber,
                           int poly) throws QTException

Create a new NoteChannelControl and a NoteChannel with the specified instrument and polyphony.

Parameters:

gmNumber - the specified general MIDI instrument number

poly - the maximum number of notes that are expected to be played by the NoteChannel at the same time.

 public NoteChannelControl(NoteChannel nc) throws QTException

Create a new NoteChannelControl from the given NoteChannel

Parameters:

nc - the given NoteChannel

 public boolean isMuted()

Returns the current mute status

Returns:

the current mute status

 public void setMuted(boolean flag) throws QTException

Allows the muting of the specific channel. When unmuted the AudioSpec object will return to its current volume setting.

Parameters:

flag - turn muting on - true or off - false.

 public void setVolume(float volume) throws QTException

This method will set the volume of this object.

Parameters:

volume - the desired volume (range: 0.0F - 1.0F)

 public float getVolume() throws QTException

This method will get the volume of this object. (range: 0.0 - 1.0)

Returns:

the current volume.

 public void setBalance(float val) throws QTException

This method sets the balance of this object.

Parameters:

val - the desired balance (range: -1F -> 1F)

 public float getBalance() throws QTException

This method gets the balance of the this object. (range: -1.0 -> 1.0)

Returns:

the balance

 public void selectInstrument(String prompt) throws QTException

This method allows for the class to allow some selection process whereby the user would choose a particular instrument that will be consequently used by a MusicPart to produce the sounds that it plays.

Parameters:

prompt - - any information that the program wants to display to the user to aid in the selection process.

 public String getInstrumentName() throws QTException

Returns the name of the current instrument for this part.

Returns:

name of the current instrument for this part

 public final NoteChannel getNoteChannel()

This method gets the NoteChannel being controlled by this object.

Returns:

the NoteChannel

 public void playNoteFor(float note,
                         int velocity,
                         int duration) throws QTException

Plays the supplied note for the given duration.

Parameters:

note - the note to play

velocity - the intial volume of the note - how hard it is struck.

duration - the number of milliseconds the note should play for

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