comparison src/matlab/Sound.m @ 0:c52bc3e8d3ad tip

user: boblsturm
branch 'default'
added README.md
added assets/.DS_Store
added assets/playButton.jpg
added assets/stopButton.png
added assets/swapButton.jpg
added data/.DS_Store
added data/fiveoctaves.mp3
added data/glock2.wav
added data/sinScale.mp3
added data/speech_female.mp3
added data/sweep.wav
added nimfks.m.lnk
added src/.DS_Store
added src/matlab/.DS_Store
added src/matlab/AnalysisCache.m
added src/matlab/CSS.m
added src/matlab/DataHash.m
added src/matlab/ExistsInCache.m
added src/matlab/KLDivCost.m
added src/matlab/LoadFromCache.m
added src/matlab/SA_B_NMF.m
added src/matlab/SaveInCache.m
added src/matlab/Sound.m
added src/matlab/SynthesisCache.m
added src/matlab/chromagram_E.m
added src/matlab/chromagram_IF.m
added src/matlab/chromagram_P.m
added src/matlab/chromsynth.m
added src/matlab/computeSTFTFeat.m
added src/matlab/controller.m
added src/matlab/decibelSliderReleaseCallback.m
added src/matlab/drawClickCallBack.m
added src/matlab/fft2chromamx.m
added src/matlab/hz2octs.m
added src/matlab/ifgram.m
added src/matlab/ifptrack.m
added src/matlab/istft.m
added src/matlab/nimfks.fig
added src/matlab/nimfks.m
added src/matlab/nmfFn.m
added src/matlab/nmf_beta.m
added src/matlab/nmf_divergence.m
added src/matlab/nmf_euclidean.m
added src/matlab/prune_corpus.m
added src/matlab/rot_kernel.m
added src/matlab/templateAdditionResynth.m
added src/matlab/templateDelCb.m
added src/matlab/templateScrollCb.m

+classdef Sound < handle
+    properties
+        Filename
+        Directory
+        Sampling_rate
+        Bits_per_sample
+        Audioplayer
+        Time_length
+        Signal
+        Features
+    end
+    
+    methods
+        function obj = Sound(varargin)
+            if nargin == 1
+                [pathstr, name, ext] = fileparts(varargin{1});
+                obj.Filename = strcat(name, ext);
+                obj.Directory = pathstr;
+            elseif nargin == 2
+                obj.Signal = varargin{1};
+                obj.Sampling_rate = varargin{2};
+            end
+            
+            obj.init;
+        end
+        
+        function obj = init(obj)
+            if ~isempty(obj.Filename)
+                [Y, Fs] = audioread([obj.Directory filesep obj.Filename]);
+                
+                %Convert to Monophonic sound
+                if(size(Y, 2) ~= 1)
+                    Y = (Y(:,1)+Y(:,2))/2;
+                end
+                
+                obj.Signal = Y;
+                obj.Sampling_rate = Fs;
+            end
+            
+            obj.Time_length = length(obj.Signal)/obj.Sampling_rate;
+            
+            obj.Audioplayer= audioplayer(obj.Signal, obj.Sampling_rate);
+            obj.Bits_per_sample = obj.Audioplayer.BitsPerSample;
+        end
+    end
+    
+    methods
+        function control_audio(obj, action)
+            switch action
+                case 'play'
+                    play(obj.Audioplayer);
+                case 'stop'
+                    stop(obj.Audioplayer);
+                case 'pause'
+                    obj.Audioplayer.pause;
+                case 'resume'
+                    obj.Audioplayer.resume;
+            end
+        end
+        
+        function save_audio(obj)
+            handles = guidata(gcf);
+            [file,path] = uiputfile({'*.wav'},'Save Sound As');
+            audiowrite([path filesep file], handles.SynthesisObject.Synthesis, handles.Sound_corpus.Sampling_rate);
+        end
+        
+        function plot_spectrogram(obj, varargin)
+            if nargin > 1
+                mindB = varargin{1};
+            else
+                mindB = 80;
+            end
+            
+            S = obj.Features.STFT.S;
+            F = obj.Features.STFT.F;
+            T = obj.Features.STFT.T;
+            
+            dB = 20*log10(abs(S)/max(max(abs(S))));
+            sonodB = max(-mindB, dB);
+            imagesc(T,F./1000,sonodB);
+            cmap = colormap('jet');
+            cmap(1,:) = 0*ones(1,3);
+            colormap((cmap));
+            colorbar
+            axis xy; grid on;
+            axis([0 T(end) 0.01 10]);
+            set(gca,'XTick',[0:0.5:T(end)],'XTickLabel','');
+            set(gca, 'Layer', 'top');
+            ylabel('Frequency (kHz)');
+            grid on;
+            set(gca,'FontSize',16);
+        end
+        
+        function plot_chromagram()
+        end
+        
+        function plot_templates(obj)
+            W=abs(obj.Features.STFT.S);
+            F=abs(obj.Features.STFT.F);
+            hold on; grid on;
+            [~,I]=max(W);
+            [~,Ix] = sort(I,'ascend');
+            for jj=1:size(W,2)
+                specdB=W(:,Ix(jj))/max(max(W));
+                handle=plot3(jj*ones(size(W,1),1),F/1000,specdB, ...
+                    'Color',power((size(W,2)-jj)/(size(W,2)+1),0.65)*ones(3,1), ...
+                    'LineWidth',8*(2+size(W,2)-jj)/(size(W,2)));
+            end
+            ylabel('Frequency (kHz)');
+            xlabel('Template');
+            zlabel('Magnitude');
+            view(105,26);
+        end
+        
+        function plot_signal(obj)
+            plot([1:length(obj.Signal)]/obj.Sampling_rate, obj.Signal, 'Color', [0, 0, 0]);
+        end
+        
+        function obj = computeFeatures(obj, window, analysis)
+            obj.Features.window = window;
+            
+            if(strcmp(analysis, 'STFT'))
+                obj.Features.STFT = computeSTFTFeat(obj.Signal, obj.Sampling_rate, obj.Features.window);
+            elseif(strcmp(analysis, 'CQT'))
+
+            elseif(strcmp(analysis, 'Chroma'))
+                
+            end
+        end
+        
+        function obj = concat(obj, sound)
+            obj.Signal = [ obj.Signal; sound.Signal ]; 
+            
+            obj.Time_length = length(obj.Signal)/obj.Sampling_rate;
+            
+            obj.Audioplayer= audioplayer(obj.Signal, obj.Sampling_rate);
+            obj.Bits_per_sample = obj.Audioplayer.BitsPerSample;
+        end
+    end
+end