tonalisa/qml/AudioSegment.qml

//    tonalisa - software to look at overtone-structures
//    Copyright (C) 2016  Dominik Schmidt-Philipp
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, either version 3 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
import QtQuick 2.3
import QtQuick.Dialogs 1.2
import QtQuick.Controls 1.2

import art.freakaria.ton 1.0


Item {
    id:root

    property alias audio:activeAudioFile
    
    AudioFile {
	id:activeAudioFile
    }

    Peaks {
	id: peakCalculator
	fftData: activeAudioFile.spectrum
	sampleRate:activeAudioFile.sampleRate
	windowIndex:activeAudioFile.windowIndex
	windowSize:activeAudioFile.windowSize

	onPeaksChanged: {
	    buffer.spectrumF0 = peaks
	    var tmp=[]
	    for(var i=0;i<peaks.length;i++){
		if(i%2)
		    tmp.push(peaks[i])
		else 
		    tmp.push(peaks[i]/peaks[0])
		
	    }
	    buffer.spectrumR1 = tmp
	}
    }

    FileDialog {
	id:fileDialog
	title:"choose a sound file"
	//folder: shortcuts.home
	onAccepted: {
	    activeAudioFile.path = fileDialog.fileUrl
	}
	onRejected: {
	    //	console.log("cancelled")
	}
    }

    Waveform {
	id:audioDisplay
	height:70;width:parent.width
    }

    Column {
	y:audioDisplay.height
	spacing: 2
	Row {
	    Button {
		id: openFileButton
		
		focus:true
		text: "open"
		onClicked: { fileDialog.open() }
	    }
	}
	Row {
	    ComboBox {
		id:transformSizeSelect
		width:70;
		currentIndex:3;
		property var sizes:[512,1024,2048,4096,8192,16384,32768]
		onCurrentIndexChanged: {
		    activeAudioFile.npts = sizes[currentIndex]
		    windowSizeInput.update_position();
		    activeAudioFile.calculateFFT()
		}
		model:sizes
	    }
	    ComboBox {
		id:windowSelect
		width: 150
		model: ["Rectangular", "Hann", "Welch", "Parzen", "Bartlett", "Hamming", "Blackman2", "Blackman3", "Blackman4", "Exponential", "Riemann", "Kaiser", "Cauchy", "Poisson", "Gaussian", "Tukey", "Dolph-Chebyshev", "Hann-Poisson", "Connes", "Samaraki", "Ultraspherical", "Bartlett-Hann", "Bohman", "Flat-top", "Blackman5", "Blackman6", "Blackman7", "Blackman8", "Blackman9", "Blackman10", "Rife-Vincent2", "Rife-Vincent3", "Rife-Vincent4", "MLT Sine", "Papoulis", "DPSS (Slepian)", "Sinc"]
		currentIndex:1;
		onCurrentIndexChanged: {
		    activeAudioFile.windowIndex = currentIndex
		    activeAudioFile.calculateFFT()
		}
	    }
	    Slider {
		y:14
		id:windowSizeInput
		value:0
		onValueChanged: {
		    activeAudioFile.windowSize = value * activeAudioFile.npts;//* 40000 + 100;
		}
		function update_position(){
		    value = activeAudioFile.windowSize / activeAudioFile.npts;
		    console.log(value)
		}
	    }
	    Text {
		property real samples: activeAudioFile.windowSize;
		text:"window Size: "+ samples +" samples"
	    }
	
	    
	} // end Transform options row
	Row {
	    id:peakFinding
	    Text {
		property real thresh: Math.floor(peakCalculator.threshold)
		text: "Threshold: "+thresh+"dB"
	    }
	    Slider {
		y:14
		id:peakThresholdcontrol
		value:0
		onValueChanged: {
		    peakCalculator.threshold = -value*100
		}
	    }
	} // end Peakfinding Row
    }
}