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1 function score = createScore(scoreLength,MIDI,timeFactor,freqFactor)
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2
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3 nbInstrument = length(MIDI);
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4 instruments = cell(nbInstrument,1);
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5 for ins = 1:nbInstrument
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6 instruments{ins} = midi2nmat( MIDI{ins});
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7 end
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8 %Score frame by frame
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9 score = zeros(scoreLength,nbInstrument);
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10
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11 % instrument : onset, offset, frequency
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12 for ins = 1:nbInstrument
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13
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14 instruments{ins}(:,1) = max(1,round(instruments{ins}(:,6)*timeFactor)-1);
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15 instruments{ins}(:,2) = round((instruments{ins}(:,6) + instruments{ins}(:,7))*timeFactor);
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16 instruments{ins}(:,3) = 440/32*2.^((instruments{ins}(:,4)-9)/12);
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17 instruments{ins}(:,4:end) = [];
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18 for j = 1: size(instruments{ins},1)
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19 score(instruments{ins}(j,1):instruments{ins}(j,2),ins) = instruments{ins}(j,3)*freqFactor;
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20 end
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21 end |
