jmsltestsuite
Class SimpleSamplePlayingInstrumentWithAmplitudeMap

java.lang.Object
  com.softsynth.jmsl.InstrumentAdapter
      com.softsynth.jmsl.jsyn.SimpleSamplePlayingInstrument
          jmsltestsuite.SimpleSamplePlayingInstrumentWithAmplitudeMap

All Implemented Interfaces:

Editable, Instrument, Namable, OutputProvider, Transposable, AttributeBuildable, DirectorySettable, HandleSpecialXMLTag

public class SimpleSamplePlayingInstrumentWithAmplitudeMap
extends SimpleSamplePlayingInstrument

This subclass of SimpleSamplePlayingInstrument overrides getAlternativeSampleIndex() to map note 60 to three different samples based on amplitude. Notice that one sample is mapped to 60. Two additional samples are mapped to pitches 200 and 201, which are pitches we never expect to play directly, and are simply stored in these positions. They serve as convenient places to stash alternative samples within the existing API. The logic of mapping quiet, medium, loud versions of middle c is implemented in getAlternativeSampleIndex()

Author:

Nick Didkovsky, (c) 2004 All rights reserved, Email: didkovn@mail.rockefeller.edu

Field Summary

Fields inherited from class com.softsynth.jmsl.jsyn.SimpleSamplePlayingInstrument

POLYPHONY

Constructor Summary

SimpleSamplePlayingInstrumentWithAmplitudeMap(java.lang.String dir)

Method Summary

int	getAlternativeSampleIndex(int pitchIndex, double timeStretch, double[] data) Precondition: pitchIndex points to a valid sample, previously loaded with addSamplePitch().
static void	main(java.lang.String[] args)

Methods inherited from class com.softsynth.jmsl.jsyn.SimpleSamplePlayingInstrument

addEditListener, addSamplePitch, addSamplePitch, addSamplePitch, buildFromAttributes, clear, close, edit, getDirectory, getEditEnabled, getNumChannels, getNumOutputs, getOutput, getOutput, getPitches, getSampleFilename, getSynthSamples, getTuning, getVoices, handleSpecialTag, notifyEditListeners, off, on, open, play, reload, removeEditListener, setDirectory, setEditEnabled, setNumChannels, setTuning, testSampleDirectory, writeSpecialXMLTags

Methods inherited from class com.softsynth.jmsl.InstrumentAdapter

getDimensionNameSpace, getInterpreter, getMixerClassName, getMusicDevice, getName, getTransposition, noteOff, noteOn, noteOnFor, setDimensionNameSpace, setInterpreter, setMixerClassName, setMusicDevice, setName, setTransposition, toString, update

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SimpleSamplePlayingInstrumentWithAmplitudeMap

public SimpleSamplePlayingInstrumentWithAmplitudeMap(java.lang.String dir)

Method Detail

getAlternativeSampleIndex

public int getAlternativeSampleIndex(int pitchIndex,
                                     double timeStretch,
                                     double[] data)

Precondition: pitchIndex points to a valid sample, previously loaded with addSamplePitch(). Override this method to point to a different valid sample index. For example, you might store a loud sample at pitchIndex 60 and quiet sample at index 200 (ie some pitch index you'd never bang directly), and if the amplitude of data[] < 0.3 return 200 for this pitchIndex, else return 60)

 
  
       public int getAlternativeSampleIndex(int pitchIndex, double timeStretch, double[] data) {
       double amp = data[2];
       if (pitchIndex == 60 && amp &lt 0.4) {
       return 201;
       }
       if (pitchIndex == 60 && amp &gt 0.7) {
       return 200;
       }
       return pitchIndex;
       }
       
  
 

Overrides:

getAlternativeSampleIndex in class SimpleSamplePlayingInstrument

Returns:

valid index to use instead of pitchIndex.

main

public static void main(java.lang.String[] args)