Where did you put the library? It's got to be placed into the correct subdirectory of your processing-0135 folder

Quote:


You'll also have to restart processing after you've done that.

Hello dear community,

i've got the same problem with the krister.ess library.

I downloaded the file and opened up my Processing-0135 folder. I opened the subfolder "libraries".
Where do I have to put the "Ess.jar" data file? Simply inside the "libraries" folder? if i do so and start Example 01 from the Processing book i receive this error:

"You need to modify your classpath, sourcepath, bootclasspath, and/or extdirs setup. Jlkes could not find package "krister.Ess" in the code folder or in any libraries."

Could you please help me? Actually I really like Processing but in this point I simply don't have any idea where to start solving the problem.

So this is the script I want to start up with:


/**
* Sound is generated in real time by summing together harmonically related
* sine tones. Overall pitch and harmonic detuning is controlled by the mouse.
* Based on the Spooky Stream Save Ess example
*/

import krister.Ess.*;

int numSines = 5; // Number of oscillators to use
AudioStream myStream; // Audio stream to write into
SineWave[] myWave; // Array of sines
FadeOut myFadeOut; // Amplitude ramp function
FadeIn myFadeIn; // Amplitude ramp function

void setup() {
 size(256, 200);
 Ess.start(this); // Start Ess
 myStream = new AudioStream(); // Create a new AudioStream
 myStream.smoothPan = true;
 myWave = new SineWave[numSines]; // Initialize the oscillators
 for (int i = 0; i < myWave.length; i++) {
   float sinVolume = (1.0 / myWave.length) / (i + 1);
   myWave[i] = new SineWave(0, sinVolume);
 }
 myFadeOut = new FadeOut(); // Create amplitude ramp
 myFadeIn = new FadeIn(); // Create amplitude ramp
 myStream.start(); // Start audio
}

void draw() {
 noStroke();
 fill(0, 20);
 rect(0, 0, width, height); // Draw the background
 float offset = millis() - myStream.bufferStartTime;
 int interp = int((offset / myStream.duration) * myStream.size);
 stroke(255);
 for (int i = 0; i < width; i++) {
   float y1 = mouseY;
   float y2 = y1;
   if (i + interp + 1 < myStream.buffer2.length) {
     y1 -= myStream.buffer2[i+interp] * height / 2;
     y2 -= myStream.buffer2[i+interp+1] * height / 2;
   }
   line(i, y1, i + 1, y2); // Draw the waves
 }
}
void audioStreamWrite(AudioStream s) {
 // Figure out frequencies and detune amounts from the mouse
 // using exponential scaling to approximate pitch perception
 float yoffset = (height - mouseY) / float(height);
 float frequency = pow(1000, yoffset) + 150;
 float detune = float(mouseX) / width - 0.5;
 myWave[0].generate(myStream); // Generate first sine, replace Stream
 myWave[0].phase += myStream.size; // Increment the phase
 myWave[0].phase %= myStream.sampleRate;
 for (int i = 1; i < myWave.length; i++) { // Add remaining sines into the Stream
   myWave[i].generate(myStream, Ess.ADD);
   myWave[i].phase = myWave[0].phase;
 }
 myFadeOut.filter(myStream); // Fade down the audio
 for (int i = 0; i < myWave.length; i++) { // Set the frequencies
   myWave[i].frequency = round(frequency * (i + 1 + i * detune));
   myWave[i].phase = 0;
 }
 myFadeIn.filter(myStream); // Fade up the audio
}

From the Ess download page:

To install Ess simply unzip Ess_r2.zip and place the 'Ess' folder inside the Processing 'libraries' folder.

krister.ess is a java namespace, not a filename.

restart didn't solve the problem.
ok, so i just put the whole folder in the libraries folder....

i chose the first of the three download links. is this the right one?
http://www.tree-axis.com/Ess/download.html

leanderlike wrote on Feb 11^th, 2008, 4:45pm:


I did the same thing the first time...

T

Hi guys! I am having the same problem as above.

I am new to this processing malarky. I have downloaded the Ess_r2.zip  and extracted the files. I then placed all the files into my processing-1.0.1\libraries folder. I then open up the code i have written up hoping it would work but it doesnt it still says the package krister does not exist. you may be missing a library. I read above that it says place the ESS folder into the library folder, which I also tried but it still gives the same messege.

Anyone have any ideas!? Any help would be uber nice!?