Fix PitchDetector web reference documentation

src/processing/sound/Analyzer.java

@@ -8,7 +8,7 @@
  * Common superclass of all audio analysis classes
  * @webref Analysis
  */
-abstract class Analyzer {
+public abstract class Analyzer {
 
 	protected SoundObject input;
 

src/processing/sound/Filter.java

@@ -6,7 +6,7 @@
 import processing.core.PApplet;
 
 // common superclass for JSyn filters that have a 'Q' unitport
-abstract class Filter<E extends FilterBiquadCommon> extends Effect<E> {
+public abstract class Filter<E extends FilterBiquadCommon> extends Effect<E> {
 
 	public Filter(PApplet parent) {
 		super(parent);

src/processing/sound/PitchDetector.java

@@ -7,21 +7,19 @@
 /**
  * Detects the pitch (also known as the 'fundamental frequency') of a sound 
  * signal. For complex signals this is not a trivial task, so the analyzer only 
- * returns a frequency measurement (measured in Hertz, or 'Hz') when its 
- * measurement exceeds a 'confidence level' that can be specified by the user.
+ * returns a frequency measurement (measured in Hertz) when its measurement 
+ * exceeds a 'confidence level' that can be specified by the user.
  *
+ * @webref Analysis:PitchDetector
  * @webBrief Detects the fundamental frequency of a sound signal
- * @webref
  */
 public class PitchDetector extends Analyzer {
   private final com.jsyn.unitgen.PitchDetector detector;
 
   private float minimumConfidence = 0.8f;
 
   /**
-   * Creates a new PitchDetector object.
-   *
-   * @param parent Typically "this"
+   * @param parent typically "this"
    * @param minimumConfidence the minimum confidence level required for 
    * frequency measurements, between 0 (accept all measurements, no matter how 
    * unreliable) to 1 (only accept perfect measurements). Defaults to 0.8.
@@ -56,14 +54,14 @@ public float analyze() {
    * Returns an estimate of the current pitch (or 'fundamental frequency') of 
    * the input sound signal, in Hertz. If the confidence in the current 
    * measurement does not exceed the minimum confidence, this method returns 0.
+   * @webref Analysis:PitchDetector
    * @webBrief Detect the fundamental frequency of the input sound signal.
    * @param minimumConfidence the minimum confidence level required for 
    * frequency measurements, between 0 (accept all measurements, no matter how 
    * unreliable) to 1 (only accept perfect measurements). If omitted, uses the 
    * confidence level specified when this PitchDetector was created.
    * @param target a float array of length 2 that will be filled with the 
    * frequency and confidence in that frequency measurement
-   * @webref
    */
   public float analyze(float minimumConfidence) {
     return (float) (this.detector.confidence.getValue() >= minimumConfidence ? this.detector.frequency.getValue() : 0.0);