Re : Audio file stuttering whilst mp3 is playing?

First doublecheck your problem analysis. Is the problem loading the image, displaying the image or not related to the image at all. Use different test-sketches to pinpoint the exact problem. When I make a test sketch I can display 20 images of 10.000x664 pixels at a framerate of 60 fps. So no problem at all.

Test Sketch

1. PImage test;
2.  
3. void setup() {
4.   size(1200, 800);
5.   test = createImage(10000, 664, RGB);
6.   test.loadPixels();
7.   for (int i=0; i<test.pixels.length; i++) {
8.     test.pixels[i] = color(random(255), random(255), random(255));
9.   }
10.   test.updatePixels();
11. }
12.  
13. void draw() {
14.   background(0);
15.   for (int i=0; i<20; i++) {
16.     image(test, random(width), random(height));
17.   }
18.   frame.setTitle(int(frameRate) + " fps");
19. }

If the problem is somehow related to the image, then some suggestions are:

• Load the image in setup() once. This is not a suggestion, but a requirement!
• Use the OpenGL renderer.
• Divide the image into multiple smaller segments (you can do this in your program) and display the right ones.
• Use a GLSL shader.