Package jmsltestsuite

Class TransposingSamplePlayingInstrumentWithAmplitudeMap

java.lang.Object

com.softsynth.jmsl.InstrumentAdapter

com.softsynth.jmsl.jsyn2.JSynSimpleUnitVoiceInstrument

com.softsynth.jmsl.jsyn2.SamplePlayingInstrument

jmsltestsuite.TransposingSamplePlayingInstrumentWithAmplitudeMap

All Implemented Interfaces:

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

public class TransposingSamplePlayingInstrumentWithAmplitudeMap
extends SamplePlayingInstrument

This subclass of SamplePlayingInstrument 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 we never expect to play directly. 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: nick@didkovsky.com

Field Summary

Fields inherited from class com.softsynth.jmsl.jsyn2.SamplePlayingInstrument

POLYPHONY, SAMPLE_CROSSFADED_LOOPING, SAMPLE_LOOPING, SAMPLE_ONE_SHOT

Constructor Summary

Constructors

Constructor	Description
TransposingSamplePlayingInstrumentWithAmplitudeMap(java.lang.String dir)

Method Summary

Modifier and Type	Method	Description
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.jsyn2.SamplePlayingInstrument

addEditListener, addSamplePitch, addSamplePitch, addSamplePitch, addSamplePitch, allSamplesSameNumberOfChannels, buildFromAttributes, clear, close, edit, getAudioSamples, getDirectory, getEditEnabled, getNumOutputs, getPitches, getPlaybackMode, getSampleDirectoryName, getSampleFilename, getTuning, handleSpecialTag, notifyEditListeners, off, off, on, open, play, reload, removeEditListener, removeSample, setDirectory, setEditEnabled, setPlaybackMode, setSampleDirectoryName, setTuning, setVoiceAllocatorUnitVoiceName, testSampleDirectory, toString, writeSpecialXMLTags

Methods inherited from class com.softsynth.jmsl.jsyn2.JSynSimpleUnitVoiceInstrument

addSignalSource, getOutput, getOutput, getPolyphony, getPreset, getUnitVoiceArray, getUnitVoiceClassName, getVoiceAllocator, isSignalProcessor, removeAllSignalSources, setPolyphony, setPreset, setUnitVoiceClassName

Methods inherited from class com.softsynth.jmsl.InstrumentAdapter

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

Methods inherited from class java.lang.Object

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

Constructor Details

TransposingSamplePlayingInstrumentWithAmplitudeMap

public TransposingSamplePlayingInstrumentWithAmplitudeMap(java.lang.String dir)

Method Details

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 < 0.4) {
            return 201;
        }
        if (pitchIndex == 60 && amp > 0.7) {
            return 200;
        }
        return pitchIndex;
    }
      

Overrides:

getAlternativeSampleIndex in class SamplePlayingInstrument

Returns:

valid index to use instead of pitchIndex.

main

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