view examples/sound/sampled/Spectro.java @ 8:5e3cbbf173aa tip

Reorganise some more

import samer.core.*;
import samer.tools.*;
import samer.maths.*;
import samer.audio.*;
import samer.units.*;
import samer.functions.*;
import samer.models.*;


public class Spectro {
	public static void main(String [] args) throws Exception {
		new samer.core.shells.SwingShell();

		CompoundTask	tasks=new CompoundTask();
		RThread 			thread=new RThread(tasks);
		AudioSource		source=new FileSource();
		LineIn				linein=new LineIn(source,1024,512);
		Scaler				scaler=new Scaler(linein.output());
		IIDPrior			prior=new IIDPrior(scaler.output(),new Abs());
		FFTVector		fft=new FFTVector(scaler.output());
		VVector			y=new VVector("ft-magnitude",fft.size()/2);

		scaler.setOutputModel(prior);		
		tasks.addTask(linein);
		tasks.addTask(scaler);
		tasks.addTask(prior);
		tasks.addTask(new BatchedTrainer(scaler.getTrainer(),4));
		tasks.addTask(fft.calcTask());
		tasks.addTask(fft.getFnPower(new Sqrt(),y));

		/*  this shows how to put some defaults in the environment
			they will affect any trace viewers for the ft-magnitude vector */
		Shell.push(y.getNode());
		Shell.put("trace.map.log","true");
		Shell.put("trace.map.maxmimum",new Double(10));
		Shell.put("trace.map.minimum",new Double(0.01));
		Shell.pop();

		y.getAgent().execute("trace",Shell.env());

		{
			Object [] commands = { "expose", "exit" };

			Shell.interpret("expose");
			Shell.exposeCommands(commands);
			Shell.exposeCommands(thread);
		}
	}

	public static void lineout() {
		Shell.put("audio.scale",new Integer(1));
		Shell.put("audio.rate",new Integer(22050));
		// could create LineOut object to play stuff coming from linein
	}
}