RE: musictrack to aunode
RE: musictrack to aunode
- Subject: RE: musictrack to aunode
- From: Jan Trutzschler <email@hidden>
- Date: Fri, 31 May 2002 21:05:46 +0200
Begin doorgestuurd bericht:
Van: Jan Trutzschler <email@hidden>
Datum: vr 31 mei 2002 20:28:18 Europe/Amsterdam
Aan: Bill Stewart <email@hidden>
Onderwerp: Antw.: musictrack to aunode
hi,
Bill Stewart heeft op vrijdag 31 mei 2002 om 08:14 het volgende
geschreven:
Extended control events are only defined to work with the extended
control
message of the MusicDevice - so, firstly, you should be using a
ParameterEvent
i thought already something like that. but in the api i could only find:
// adding time-stamped events to the track
extern OSStatus MusicTrackNewMIDINoteEvent(..);
extern OSStatus MusicTrackNewMIDIChannelEvent(...);
extern OSStatus MusicTrackNewMIDIRawDataEvent(... );
extern OSStatus MusicTrackNewExtendedNoteEvent(...);
extern OSStatus MusicTrackNewExtendedControlEvent(...);
extern OSStatus MusicTrackNewExtendedTempoEvent(..);
extern OSStatus MusicTrackNewMetaEvent(...);
extern OSStatus MusicTrackNewUserEvent(... );
but they only work on MusicDevices right?
how can i put a paramterEvent in a track and how does the event struct
look like?
You also have to make sure that the au node that you're addressing can
react
to these events - I presume your graph's '1' node is such an audio
unit?
actually the node's audio unit does understand for example
setParameter(0,0,AUConstants.kAudioUnitScope_Global,0,1000.0f,0).
also the AUGraph does not have any MusicDevice in it.
thanks
jan
Bill
on 30/5/02 3:37 PM, Jan Trutzschler wrote:
hello,
i'm trying to control some parameters of an audioUnit with a
MusicPlayer.
both in c and java (src below) i couldnt get it working.
if i start the MusicPlayer, the AUGraph associated with the sequence
opens and runs, but it doesnt change any node's parameters.
has anyone successfully controlled parameters of an AudioUnit which is
not a dsl_musicdevice? (for example the filters?)
private synchronized void setupPlayer () {
try {
player = new MusicPlayer();
sequence = new MusicSequence();
myTrack = sequence.newTrack();
ExtendedControlEvent eventI = new
ExtendedControlEvent(0,0,1000.0f);
myTrack.newExtendedControlEvent(1.0, eventI);
sequence.setAUGraph(myAUGraph);
myTrack.setDestNode(myAUGraph.getIndNode(1)); //setting a direct
reference to the node doesnt work either..
player.setSequence(sequence);
} catch (Exception e) {
e.printStackTrace();
}
jan
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