Package net.paulhertz.pixelaudio.example

Class SimpleWaveSynth

java.lang.Object
processing.core.PApplet
net.paulhertz.pixelaudio.example.SimpleWaveSynth
All Implemented Interfaces:
processing.core.PConstants
public class SimpleWaveSynth extends processing.core.PApplet
SimpleWaveSynth demonstrates the basics of setting up a WaveSynth as an animated visual display. We'll work with WaveSynth audio in other sketches.
SimpleWaveSynth Screen
WaveSynth screen for a with a BoustropheGen PixelMapGen and WaveSynth.sampleRate == 48000.

A WaveSynth uses additive audio synthesis of sine wave "operators" to generate both an audio signal array and an RGB "color signal" array. The color signal serves as the pixel array of a PImage instance variable of the WaveSynth, WaveSynth.mapImage. In this sketch, the dimensions of the image are the same as the display image, this.mapImage.

The appearance of a WaveSynth is governed by the PixelMapGen we use and by the internal sampling rate of the WaveSynth. By default, WaveSynth.sampleRate = WaveSynth.mapSize, the dimensions of the PImage the WaveSynth uses for its derived image. The sine wave operators are stored as WaveData objects. Each WaveData object has fields for frequency, amplitude, phase, number of cycles per animation sequence, etc. When the internal sampling rate of the WaveSynth equals the width * height of its mapImage, this means that one cycle of a 1.0 Hz sine wave will fill its signal array. Similarly, the color controlled by that WaveData object in the color array will change its brightness over one cycle of a sine wave. When a WaveSynth is animated, it sums the operator sine waves to create an audio signal and it sums the operator colors to create a color array that it writes to its mapImage, moving through the operator values frame by frame. For more details, see the WaveSynth code and javadoc. 

 Press '\t' (tab) to toggle animation.
 Press '1' to set WaveSynth gamma to 1.0.
 Press '2' to set WaveSynth gamma to 1.4.
 Press '3' to set WaveSynth gamma to 1.8.
 Press '4' to set WaveSynth gamma to 0.5.
 Press 'g' to swap in a different PixelMapGen for the WaveSynth.
 Press 'f' to set the WaveSynth to output an image rotated 90 degrees clockwise.
 Press 'r' to step though different values for the internal sample rate of the WaveSynth.
 Press 'R' to set the internal sample rate of the WaveSynth to mapSize.
 Press 't' to output the gamma table for the current gamma value myGamma.
 Press 'i' to output display frame rate to the console.
 Press 'h' to show the help message in the console.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    (package private) int
    animSteps
     
    (package private) BoustropheGen
    bGenHz
     
    (package private) PixelMapGen
    gen
     
    (package private) HilbertGen
    hGen
     
    (package private) int
    imageHeight
     
    (package private) int
    imageWidth
     
    (package private) boolean
    isAnimating
     
    (package private) boolean
    isTrackTime
     
    (package private) PixelAudioMapper
    mapper
     
    (package private) MooreGen
    mGen
     
    (package private) float
    myGamma
     
    (package private) PixelAudio
    pixelaudio
     
    (package private) int
    start
     
    (package private) int
    step
     
    (package private) processing.core.PImage
    synthImage
     
    (package private) int
    timespan
     
    (package private) WaveSynth
    wavesynth
     
    (package private) ArrayList<WaveData>
    wdList
     
    (package private) DiagonalZigzagGen
    zGen
     

    Fields inherited from class processing.core.PApplet

    args, ARGS_BGCOLOR, ARGS_DISABLE_AWT, ARGS_DISPLAY, ARGS_EDITOR_LOCATION, ARGS_EXTERNAL, ARGS_FULL_SCREEN, ARGS_HIDE_STOP, ARGS_LOCATION, ARGS_PRESENT, ARGS_SKETCH_FOLDER, ARGS_STOP_COLOR, ARGS_UI_SCALE, ARGS_WINDOW_COLOR, DEFAULT_HEIGHT, DEFAULT_WIDTH, disableAWT, displayHeight, displayWidth, dmouseX, dmouseY, emouseX, emouseY, exitCalled, EXTERNAL_MOVE, EXTERNAL_STOP, finished, firstMouse, focused, frameCount, frameRate, frameRateLastNanos, g, height, insideDraw, javaPlatform, javaVersion, javaVersionName, key, keyCode, keyEvent, keyPressed, keyRepeatEnabled, looping, matchPatterns, mouseButton, mouseEvent, mousePressed, mouseX, mouseY, pixelDensity, pixelHeight, pixels, pixelWidth, platform, pmouseX, pmouseY, ratioLeft, ratioScale, ratioTop, recorder, redraw, rheight, rmouseX, rmouseY, rwidth, surface, useNativeSelect, width, windowX, windowY

    Fields inherited from interface processing.core.PConstants

    ADD, ALPHA, ALT, AMBIENT, ARC, ARGB, ARROW, BACKSPACE, BASELINE, BEVEL, BEZIER_VERTEX, BLEND, BLUR, BOTTOM, BOX, BREAK, BURN, CENTER, CHATTER, CHORD, CLAMP, CLOSE, CODED, COMPLAINT, CONTROL, CORNER, CORNERS, CROSS, CURVE_VERTEX, CUSTOM, DARKEST, DEG_TO_RAD, DELETE, DIAMETER, DIFFERENCE, DILATE, DIRECTIONAL, DISABLE_ASYNC_SAVEFRAME, DISABLE_BUFFER_READING, DISABLE_DEPTH_MASK, DISABLE_DEPTH_SORT, DISABLE_DEPTH_TEST, DISABLE_KEY_REPEAT, DISABLE_NATIVE_FONTS, DISABLE_OPENGL_ERRORS, DISABLE_OPTIMIZED_STROKE, DISABLE_STROKE_PERSPECTIVE, DISABLE_STROKE_PURE, DISABLE_TEXTURE_MIPMAPS, DODGE, DOWN, DXF, ELLIPSE, ENABLE_ASYNC_SAVEFRAME, ENABLE_BUFFER_READING, ENABLE_DEPTH_MASK, ENABLE_DEPTH_SORT, ENABLE_DEPTH_TEST, ENABLE_KEY_REPEAT, ENABLE_NATIVE_FONTS, ENABLE_OPENGL_ERRORS, ENABLE_OPTIMIZED_STROKE, ENABLE_STROKE_PERSPECTIVE, ENABLE_STROKE_PURE, ENABLE_TEXTURE_MIPMAPS, ENTER, EPSILON, ERODE, ESC, EXCLUSION, FX2D, GIF, GRAY, GROUP, HALF_PI, HAND, HARD_LIGHT, HINT_COUNT, HSB, IMAGE, INVERT, JAVA2D, JPEG, LANDSCAPE, LEFT, LIGHTEST, LINE, LINE_LOOP, LINE_STRIP, LINES, LINUX, MACOS, MACOSX, MAX_FLOAT, MAX_INT, MIN_FLOAT, MIN_INT, MITER, MODEL, MODELVIEW, MOVE, MULTIPLY, NORMAL, OPAQUE, OPEN, OPENGL, ORTHOGRAPHIC, OTHER, OVERLAY, P2D, P3D, PATH, PDF, PERSPECTIVE, PI, PIE, platformNames, POINT, POINTS, POLYGON, PORTRAIT, POSTERIZE, PROBLEM, PROJECT, PROJECTION, QUAD, QUAD_BEZIER_VERTEX, QUAD_STRIP, QUADRATIC_VERTEX, QUADS, QUARTER_PI, RAD_TO_DEG, RADIUS, RECT, REPEAT, REPLACE, RETURN, RGB, RIGHT, ROUND, SCREEN, SHAPE, SHIFT, SOFT_LIGHT, SPAN, SPHERE, SPOT, SQUARE, SUBTRACT, SVG, TAB, TARGA, TAU, TEXT, THIRD_PI, THRESHOLD, TIFF, TOP, TRIANGLE, TRIANGLE_FAN, TRIANGLE_STRIP, TRIANGLES, TWO_PI, UP, VERTEX, WAIT, WHITESPACE, WINDOWS, X, Y, Z

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimpleWaveSynth()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    draw()
     
    ArrayList<WaveData>
    initWaveDataList()
    Generates a list of WaveData for a WaveSynth.
    WaveSynth
    initWaveSynth(WaveSynth synth)
    Sets some of a WaveSynth's instance variables, such gain, gamma, animation steps.
    void
    keyPressed()
     
    static void
    main(String[] args)
     
    void
    makeGammaTable(float gamma)
    Generates a gamma table, a lookup table for a non-linear adjustment of brightness.
    void
    settings()
     
    void
    setup()
     
    void
    showHelp()
     
    void
    stepAnimation()
     
    void
    swapGen(PixelMapGen gen)
    Set the PixelMapGen used by htis.mapper, changing the signal path in the display image.
    void
    trackTime()
     

    Methods inherited from class processing.core.PApplet

    abs, abs, acos, alpha, ambient, ambient, ambient, ambientLight, ambientLight, append, append, append, append, append, append, applyMatrix, applyMatrix, applyMatrix, applyMatrix, applyMatrix, arc, arc, arraycopy, arraycopy, arraycopy, arrayCopy, arrayCopy, arrayCopy, asin, atan, atan2, attrib, attrib, attrib, attribColor, attribNormal, attribPosition, background, background, background, background, background, background, background, beginCamera, beginContour, beginPGL, beginRaw, beginRaw, beginRecord, beginRecord, beginShape, beginShape, bezier, bezier, bezierDetail, bezierPoint, bezierTangent, bezierVertex, bezierVertex, binary, binary, binary, binary, blend, blend, blendColor, blendMode, blue, box, box, brightness, calcSketchPath, camera, camera, ceil, checkAlpha, checkExtension, choice, choice, circle, clear, clip, color, color, color, color, color, color, color, color, colorMode, colorMode, colorMode, colorMode, concat, concat, concat, concat, concat, concat, concat, constrain, constrain, copy, copy, copy, cos, createFont, createFont, createFont, createGraphics, createGraphics, createGraphics, createImage, createInput, createInput, createInputRaw, createOutput, createOutput, createPath, createPath, createPrimaryGraphics, createReader, createReader, createReader, createShape, createShape, createShape, createWriter, createWriter, createWriter, cursor, cursor, cursor, cursor, curve, curve, curveDetail, curvePoint, curveTangent, curveTightness, curveVertex, curveVertex, dataFile, dataPath, day, debug, degrees, delay, dequeueEvents, desktopFile, desktopPath, die, die, directionalLight, displayDensity, displayDensity, dispose, dist, dist, edge, ellipse, ellipseMode, emissive, emissive, emissive, endCamera, endContour, endPGL, endRaw, endRecord, endShape, endShape, exec, exec, exit, exitActual, exitCalled, exp, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, expand, fill, fill, fill, fill, fill, fill, filter, filter, filter, floor, flush, focusGained, focusLost, frameMoved, frameRate, frustum, fullScreen, fullScreen, fullScreen, fullScreen, get, get, get, getExtension, getGraphics, getMatrix, getMatrix, getMatrix, getSurface, green, handleDraw, handleKeyEvent, handleMethods, handleMouseEvent, hex, hex, hex, hex, hideMenuBar, hint, hour, hue, image, image, image, imageMode, initSurface, insertFrame, isLooping, join, join, keyPressed, keyReleased, keyReleased, keyTyped, keyTyped, launch, lerp, lerpColor, lerpColor, lightFalloff, lights, lightSpecular, line, line, link, listFiles, listFiles, listPaths, loadBytes, loadBytes, loadBytes, loadFont, loadImage, loadImage, loadJSONArray, loadJSONArray, loadJSONObject, loadJSONObject, loadPixels, loadShader, loadShader, loadShape, loadShape, loadStrings, loadStrings, loadStrings, loadStrings, loadTable, loadTable, loadXML, loadXML, log, loop, mag, mag, main, main, main, makeGraphics, map, mask, match, matchAll, max, max, max, max, max, max, method, millis, min, min, min, min, min, min, minute, modelX, modelY, modelZ, month, mouseClicked, mouseClicked, mouseDragged, mouseDragged, mouseEntered, mouseEntered, mouseExited, mouseExited, mouseMoved, mouseMoved, mousePressed, mousePressed, mouseReleased, mouseReleased, mouseWheel, mouseWheel, nf, nf, nf, nf, nf, nf, nfc, nfc, nfc, nfc, nfp, nfp, nfp, nfp, nfs, nfs, nfs, nfs, noClip, noCursor, noFill, noise, noise, noise, noiseDetail, noiseDetail, noiseSeed, noLights, noLoop, norm, normal, noSmooth, noStroke, noTexture, noTint, orientation, ortho, ortho, ortho, parseBoolean, parseBoolean, parseBoolean, parseBoolean, parseByte, parseByte, parseByte, parseByte, parseByte, parseByte, parseByte, parseByte, parseChar, parseChar, parseChar, parseChar, parseFloat, parseFloat, parseFloat, parseFloat, parseFloat, parseFloat, parseFloat, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseInt, parseJSONArray, parseJSONObject, parseXML, parseXML, pause, perspective, perspective, pixelDensity, point, point, pointLight, pop, popMatrix, popStyle, postEvent, postWindowMoved, postWindowResized, pow, print, print, print, print, print, print, print, print, print, printArray, printCamera, println, println, println, println, println, println, println, println, println, println, println, printMatrix, printProjection, printStackTrace, push, pushMatrix, pushStyle, quad, quadraticVertex, quadraticVertex, radians, random, random, randomGaussian, randomSeed, rect, rect, rect, rectMode, red, redraw, registerMethod, requestImage, requestImage, resetMatrix, resetShader, resetShader, resume, reverse, reverse, reverse, reverse, reverse, reverse, reverse, rotate, rotate, rotateX, rotateY, rotateZ, round, runSketch, runSketch, runSketch, saturation, save, saveBytes, saveBytes, saveBytes, saveFile, saveFrame, saveFrame, saveJSONArray, saveJSONArray, saveJSONObject, saveJSONObject, savePath, saveStream, saveStream, saveStream, saveStream, saveStream, saveStrings, saveStrings, saveStrings, saveTable, saveTable, saveXML, saveXML, scale, scale, scale, screenX, screenX, screenY, screenY, screenZ, second, selectCallback, selectFolder, selectFolder, selectFolder, selectInput, selectInput, selectInput, selectOutput, selectOutput, selectOutput, set, set, setMatrix, setMatrix, setMatrix, setSize, shader, shader, shape, shape, shape, shapeMode, shearX, shearY, shell, shininess, shorten, shorten, shorten, shorten, shorten, shorten, shorten, showDepthWarning, showDepthWarningXYZ, showMethodWarning, showMissingWarning, showSurface, showVariationWarning, sin, size, size, size, sketchDisplay, sketchFile, sketchFullScreen, sketchHeight, sketchOutputPath, sketchOutputStream, sketchPath, sketchPath, sketchPixelDensity, sketchRenderer, sketchSmooth, sketchWidth, sketchWindowColor, smooth, smooth, sort, sort, sort, sort, sort, sort, sort, sort, sort, sort, specular, specular, specular, sphere, sphereDetail, sphereDetail, splice, splice, splice, splice, splice, splice, splice, splice, splice, splice, splice, splice, splice, split, split, splitTokens, splitTokens, spotLight, sq, sqrt, square, start, startSurface, stop, str, str, str, str, str, str, str, str, str, str, stroke, stroke, stroke, stroke, stroke, stroke, strokeCap, strokeJoin, strokeWeight, style, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, subset, tan, text, text, text, text, text, text, text, text, text, text, text, textAlign, textAlign, textAscent, textDescent, textFont, textFont, textLeading, textMode, textSize, texture, textureMode, textureWrap, textWidth, textWidth, textWidth, thread, tint, tint, tint, tint, tint, tint, translate, translate, triangle, trim, trim, unbinary, unhex, unregisterMethod, updatePixels, updatePixels, urlDecode, urlEncode, vertex, vertex, vertex, vertex, vertex, windowMove, windowMoved, windowRatio, windowResizable, windowResize, windowResized, windowTitle, year

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

    • SimpleWaveSynth

      public SimpleWaveSynth()

  • Method Details

    • main

      public static void main(String[] args)

    • settings

      public void settings()
      Overrides:
      settings in class processing.core.PApplet

    • setup

      public void setup()
      Overrides:
      setup in class processing.core.PApplet

    • initWaveDataList

      public ArrayList<WaveData> initWaveDataList()
      Generates a list of WaveData for a WaveSynth.
      Returns:
      an ArrayList of WaveData

    • initWaveSynth

      public WaveSynth initWaveSynth(WaveSynth synth)
      Sets some of a WaveSynth's instance variables, such gain, gamma, animation steps. We do not set the WaveSynth's sample rate, which defaults to the size of the WaveSynth's pixel map and audio signal array.
      Parameters:
      synth - the WaveSynth to use
      Returns:
      the WaveSynth with instance variables set

    • swapGen

      public void swapGen(PixelMapGen gen)
      Set the PixelMapGen used by htis.mapper, changing the signal path in the display image.
      Parameters:
      gen - PixelMapGen to provide to mapper

    • draw

      public void draw()
      Overrides:
      draw in class processing.core.PApplet

    • trackTime

      public void trackTime()

    • stepAnimation

      public void stepAnimation()

    • keyPressed

      public void keyPressed()
      Overrides:
      keyPressed in class processing.core.PApplet

    • showHelp

      public void showHelp()

    • makeGammaTable

      public void makeGammaTable(float gamma)
      Generates a gamma table, a lookup table for a non-linear adjustment of brightness.
      Parameters:
      gamma - the gamma value for generating the table