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Diffstat (limited to 'ofxMaxim/ofxMaximExamples0062OSX/ofxMaxim_example_mfccs/src/testApp.cpp')
| -rw-r--r-- | ofxMaxim/ofxMaximExamples0062OSX/ofxMaxim_example_mfccs/src/testApp.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/ofxMaxim/ofxMaximExamples0062OSX/ofxMaxim_example_mfccs/src/testApp.cpp b/ofxMaxim/ofxMaximExamples0062OSX/ofxMaxim_example_mfccs/src/testApp.cpp new file mode 100644 index 0000000..abb1e2d --- /dev/null +++ b/ofxMaxim/ofxMaximExamples0062OSX/ofxMaxim_example_mfccs/src/testApp.cpp @@ -0,0 +1,227 @@ +/* This is an example of how to integrate maximilain into openFrameworks, + including using audio received for input and audio requested for output. + + + You can copy and paste this and use it as a starting example. + + */ + + +#include "testApp.h" +#include "maximilian.h"/* include the lib */ +#include "time.h" + + + +//------------------------------------------------------------- +testApp::~testApp() { + +} + + +//-------------------------------------------------------------- +void testApp::setup(){ + /* some standard setup stuff*/ + + ofEnableAlphaBlending(); + ofSetupScreen(); + ofBackground(0, 0, 0); + ofSetFrameRate(60); + + /* This is stuff you always need.*/ + + sampleRate = 44100; /* Sampling Rate */ + initialBufferSize = 512; /* Buffer Size. you have to fill this buffer with sound*/ + lAudioOut = new float[initialBufferSize];/* outputs */ + rAudioOut = new float[initialBufferSize]; + lAudioIn = new float[initialBufferSize];/* inputs */ + rAudioIn = new float[initialBufferSize]; + + + /* This is a nice safe piece of code */ + memset(lAudioOut, 0, initialBufferSize * sizeof(float)); + memset(rAudioOut, 0, initialBufferSize * sizeof(float)); + + memset(lAudioIn, 0, initialBufferSize * sizeof(float)); + memset(rAudioIn, 0, initialBufferSize * sizeof(float)); + + /* Now you can put anything you would normally put in maximilian's 'setup' method in here. */ + +// samp.load(ofToDataPath("sinetest_stepping2.wav")); +// samp.load(ofToDataPath("whitenoise2.wav")); +// samp.load(ofToDataPath("additive22.wav")); + //samp.load(ofToDataPath("pinknoise2.wav")); + samp.load(ofToDataPath("filtersweep2.wav")); + samp.getLength(); + + + fftSize = 1024; + mfft.setup(fftSize, 512, 256); + ifft.setup(fftSize, 512, 256); + + + + nAverages = 12; + oct.setup(sampleRate, fftSize/2, nAverages); + + mfccs = (double*) malloc(sizeof(double) * 13); + mfcc.setup(512, 42, 13, 20, 20000, sampleRate); + + ofxMaxiSettings::setup(sampleRate, 2, initialBufferSize); + ofSoundStreamSetup(2,2, this, sampleRate, initialBufferSize, 4);/* Call this last ! */ + + ofSetVerticalSync(true); + +} + +//-------------------------------------------------------------- +void testApp::update(){ +} + +//-------------------------------------------------------------- +void testApp::draw(){ + + ofSetColor(255, 255, 255,255); + + //draw fft output + float xinc = 900.0 / fftSize * 2.0; + for(int i=0; i < fftSize / 2; i++) { + float height = mfft.magnitudesDB[i] / 50.0 * 300; + ofRect(100 + (i*xinc),250 - height,2, height); + } + //draw phases + ofSetColor(0, 255, 0,100); + for(int i=0; i < fftSize / 2; i++) { + float height = mfft.phases[i] / 50.0 * 400; + ofRect(100 + (i*xinc),300 - height,2, height); + } + +// //octave analyser +// ofSetColor(255, 0, 0,100); +// xinc = 900.0 / oct.nAverages; +// for(int i=0; i < oct.nAverages; i++) { +// float height = oct.averages[i] / 50.0 * 100; +// ofRect(100 + (i*xinc),700 - height,2, height); +// } + + //Mel bands +// cout << "\nMel bands: "; + ofSetColor(255, 0, 255,100); + xinc = 900.0 / 42.0; + for(int i=0; i < 42; i++) { +// cout << mfcc.melBands[i] << ","; + float height = mfcc.melBands[i] * 5.0; + ofRect(100 + (i*xinc),400 - height,10, height); + } +// cout << endl; + +// cout << "\nMFCCS: "; + ofSetColor(255, 0, 0,100); + xinc = 900.0 / 13; + for(int i=0; i < 13; i++) { + float height = mfccs[i] * 250.0; + ofRect(100 + (i*xinc),600 - height,40, height); +// cout << mfccs[i] << ","; + } +// cout << "\n-------" << endl; + +// cout << callTime << endl; + +} + +//-------------------------------------------------------------- +void testApp::audioRequested (float * output, int bufferSize, int nChannels){ +// static double tm; + for (int i = 0; i < bufferSize; i++){ +// wave = osc.saw(maxiMap::linexp(mouseY + ofGetWindowPositionY(), 0, ofGetScreenHeight(), 200, 8000)); +// wave = lAudioIn[i]; + wave = samp.play(1.); + //get fft + if (mfft.process(wave)) { +// int bins = fftSize / 2.0; + //do some manipulation +// int hpCutoff = floor(((mouseX + ofGetWindowPositionX()) / (float) ofGetScreenWidth()) * fftSize / 2.0); +//highpass +// memset(mfft.magnitudes, 0, sizeof(float) * hpCutoff); +// memset(mfft.phases, 0, sizeof(float) * hpCutoff); +//lowpass +// memset(mfft.magnitudes + hpCutoff, 0, sizeof(float) * (bins - hpCutoff)); +// memset(mfft.phases + hpCutoff, 0, sizeof(float) * (bins - hpCutoff)); + mfft.magsToDB(); +// for(int z=0; z < 512; z++) cout << mfft.magnitudesDB[z] << ","; +// cout << "---------\n"; + oct.calculate(mfft.magnitudesDB); + mfcc.mfcc(mfft.magnitudes, mfccs); + //cout << mfft.spectralFlatness() << ", " << mfft.spectralCentroid() << endl; + } + //inverse fft + gettimeofday(&callTS,NULL); +// ifftVal = ifft.process(mfft.magnitudes, mfft.phases); + gettimeofday(&callEndTS,NULL); + callTime = (float)(callEndTS.tv_usec - callTS.tv_usec) / 1000000.0; + callTime += (float)(callEndTS.tv_sec - callTS.tv_sec); + //play result + mymix.stereo(wave, outputs, 0.5); +// float mix = ((mouseX + ofGetWindowPositionX()) / (float) ofGetScreenWidth()); +// mymix.stereo((wave * mix) + ((1.0-mix) * ifftVal), outputs, 0.5); + lAudioOut[i] = output[i*nChannels ] = outputs[0]; /* You may end up with lots of outputs. add them here */ + rAudioOut[i] = output[i*nChannels + 1] = outputs[1]; + } + + + +} + +//-------------------------------------------------------------- +void testApp::audioReceived (float * input, int bufferSize, int nChannels){ + + + /* You can just grab this input and stick it in a double, then use it above to create output*/ + + for (int i = 0; i < bufferSize; i++){ + + /* you can also grab the data out of the arrays*/ + + lAudioIn[i] = input[i*2]; + rAudioIn[i] = input[i*2+1]; + } + +} + +//-------------------------------------------------------------- +void testApp::keyPressed(int key){ + +} + +//-------------------------------------------------------------- +void testApp::keyReleased(int key){ + +} + +//-------------------------------------------------------------- +void testApp::mouseMoved(int x, int y ){ + + + +} + +//-------------------------------------------------------------- +void testApp::mouseDragged(int x, int y, int button){ + +} + +//-------------------------------------------------------------- +void testApp::mousePressed(int x, int y, int button){ + +} + +//-------------------------------------------------------------- +void testApp::mouseReleased(int x, int y, int button){ + +} + +//-------------------------------------------------------------- +void testApp::windowResized(int w, int h){ + +} + |