Some of the STK UGens seem to "honk" if you don't send them an initial noteOff message. Here is an illustration: FMVoices inst => PRCRev rev => dac; //inst.noteOff( 0.5 ); 2::second => now; for (0=>int i; ; i++) { if ( i%2 == 0 ) 440 => inst.freq; else 880 => inst.freq; inst.noteOn( 0.5 ); 1::second => now; } I count FMVoices, Mandolin, VoicForm, Moog, BeeThree, HevyMetl, and PercFlut that do this. Also, PercFlut, BlowHole, and TubeBell seem to have some funny ideas of pitch. best, Graham
Hi Graham, I will let Ge or Perry respond to the honking comment.
Also, PercFlut, BlowHole, and TubeBell seem to have some funny ideas of pitch.
I know Ge is working hard on the interface to STK in ChucK. I haven't done a thorough study on what the ranges and values for these UGens. As such, there is little useful information in the manual about these other than the fact that they exist. This is something that I hope to have fixed in version 1.2.0.5. If you have any observations about the interface or would like to help define the meanings and ranges of these parameters it would be a great help to us. --art
Adam, As you suggested, I looked into the .freq parameters. Please find a chuck file attached that demonstrates the following: 1. Current Defaults 2. Suggested Parameters 3. Behavior of BlowHole 4. Behavior of TubeBell 5. Behavior of PercFlut To preface my findings, I'm not an expert on physical modeling, and I haven't looked into the internals. My recommendations: 1. PercFlut could be taken down a perfect fifth. If new parameters are exposed, we could test them with this. 2. BlowHole could respond productively to freq messages. Also, it could respond to noteOff (in addition to stopBlowing). 3. TubeBell seems just fine (barring additional parameters), but it could probably respond to noteOff. Sorry if the original comment was vague. Hope this will be helpful, Graham On Sat, 4 Mar 2006, Adam Tindale wrote:
Hi Graham,
I will let Ge or Perry respond to the honking comment.
Also, PercFlut, BlowHole, and TubeBell seem to have some funny ideas of pitch.
I know Ge is working hard on the interface to STK in ChucK. I haven't done a thorough study on what the ranges and values for these UGens. As such, there is little useful information in the manual about these other than the fact that they exist. This is something that I hope to have fixed in version 1.2.0.5. If you have any observations about the interface or would like to help define the meanings and ranges of these parameters it would be a great help to us.
--art
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I count FMVoices, Mandolin, VoicForm, Moog, BeeThree, HevyMetl, and PercFlut that do this.
Honking is probably right on the ones you mention, due to setup conditions. We'll check on this.
Also, PercFlut, BlowHole, and TubeBell seem to have some funny ideas of pitch.
This is more subtle. PercFlut and Tubebell are FM model, but since they're both inharmonic, how one person perceives the pitch might be different than how another does. BlowHole is a physical model, and thus, like Brass, Flute, and others, might not produce the pitch you expect at any given time (just like a real instrument). PRC
participants (3)
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Adam Tindale -
Graham Coleman -
Perry R Cook