public static Map<String, Boolean> beatDetect(String deviceName, NodeContext context) {
BeatDetect beat = (BeatDetect) context.getData().get(deviceName + ".beat");
if (beat == null) return ImmutableMap.of();
ImmutableMap.Builder<String, Boolean> mb = ImmutableMap.builder();
mb.put("beat", beat.isOnset());
mb.put("kick", beat.isKick());
mb.put("snare", beat.isSnare());
mb.put("hat", beat.isHat());
return mb.build();
}
public SoundControl(String s) throws IOException {
MinimObject minimObj = new MinimObject();
minim = new Minim(minimObj);
maxBass = Constants.MAX_PLAYER_SIZE;
frame = Constants.FRAME_TO_GENERATE_ENEMIES;
fftThreshold = Constants.FFT_THRESHOLD;
fftLeftThreshold = Constants.FFT_LEFT_THRESHOLD;
consecFramesGenned = 0;
song = minim.loadFile(s);
songLength = song.length();
songOver = false;
fadeEnter = false;
fft = new FFT(song.bufferSize(), song.sampleRate());
fft.linAverages(bands);
setFftLog(new FFT(song.bufferSize(), song.sampleRate()));
getFftLog().logAverages(22, 12);
fftPrev = new float[bands];
fftDiff = new float[bands];
groupings = new int[120];
beats = new boolean[120];
beat = new BeatDetect(song.bufferSize(), song.sampleRate());
beat.setSensitivity(10);
bl = new BeatListener(beat, song);
}
public int getBassBeat() {
if (bass > 0) bass--;
if (beat.isKick()) { // TODO: base off of fft, not just jump to maxBass
bass = maxBass;
}
return bass;
}
public void setup() {
size(1200, 200, JAVA2D);
preview = createGraphics(width, 100);
minim = new Minim(this);
mimp = new JSMinim(this);
mimp.debugOn();
// specify that we want the audio buffers of the AudioPlayer
// to be 1024 samples long because our FFT needs to have
// a power-of-two buffer size and this is a good size.
jingle = minim.loadFile(filename, 1024);
// loop the file indefinitely
jingle.loop();
// create an FFT object that has a time-domain buffer
// the same size as jingle's sample buffer
// note that this needs to be a power of two
// and that it means the size of the spectrum will be half as large.
fft = new FFT(jingle.bufferSize(), jingle.sampleRate());
MultiChannelBuffer sampleBuffer = new MultiChannelBuffer(0, 0); // params don't matter!
float jingleBuffer = loadFileIntoBuffer(filename, sampleBuffer);
totalSamples = sampleBuffer.getBufferSize();
beat = new BeatDetect(4096 * 4, jingle.sampleRate());
beat.setSensitivity(1);
beat.detectMode(BeatDetect.FREQ_ENERGY);
// find ALL beats
float data[] = new float[2048];
samples = sampleBuffer.getChannel(1);
// for( int i = 0; i < samples.length; i+= data.length ){
// int j = Math.min( samples.length-1, i + data.length - 1 );
//// System.out.println( "copy up to including " + ( j ) + " / " + samples.length);
// System.arraycopy( samples, i, data, 0, 1 + j - i );
// beat.detect( data );
// if( beat.isOnset() ){
// beats.add( i );
// System.out.println( i + ": " + beat.isKick() );
// }
// }
// pick some starting point ...
loopEnd = samples.length;
int start = (int) random(3 * samples.length / 5);
analyze(start);
new Thread() {
public void run() {
try {
while (true) {
Thread.sleep(1);
// figure it out
int s = (int) (loopStart * 1000l / jingle.getFormat().getSampleRate());
int e = (int) (loopEnd * 1000l / jingle.getFormat().getSampleRate());
if (jingle.position() < s) jingle.cue(s + 10);
else if (jingle.position() > e) jingle.cue(s);
else continue;
Thread.sleep(500);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}.start();
// System.exit(0);
}
