Floating Point Dither For All

3 files changed, 40 insertions, 48 deletions

diff --git a/plugins/MacAU/ADT/ADT.cpp b/plugins/MacAU/ADT/ADT.cpp
index b12c056..098adaa 100755
--- a/plugins/MacAU/ADT/ADT.cpp
+++ b/plugins/MacAU/ADT/ADT.cpp
@@ -317,23 +317,15 @@ void		ADT::ADTKernel::Process(	const Float32 	*inSourceP,
 		
 		if (output < 1.0) inputSample *= output;
 		
-		//noise shaping to 32-bit floating point
-		Float32 fpTemp = inputSample;
-		fpNShape += (inputSample-fpTemp);
-		inputSample += fpNShape;
-		//for deeper space and warmth, we try a non-oscillating noise shaping
-		//that is kind of ruthless: it will forever retain the rounding errors
-		//except we'll dial it back a hair at the end of every buffer processed
-		//end noise shaping on 32 bit output
+		//32 bit dither, made small and tidy.
+		int expon; frexpf((Float32)inputSample, &expon);
+		long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
+		inputSample += (dither-fpNShape); fpNShape = dither;
+		//end 32 bit dither
 		
 		*destP = inputSample;
 		
 		sourceP += inNumChannels; destP += inNumChannels;
 	}
-	fpNShape *= 0.999999;
-	//we will just delicately dial back the FP noise shaping, not even every sample
-	//this is a good place to put subtle 'no runaway' calculations, though bear in mind
-	//that it will be called more often when you use shorter sample buffers in the DAW.
-	//So, very low latency operation will call these calculations more often.
 }
 
diff --git a/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.pbxuser b/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.pbxuser
index 2f05153..3d176d1 100755
--- a/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.pbxuser
+++ b/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.pbxuser
@@ -49,12 +49,12 @@
 					PBXFileDataSource_Warnings_ColumnID,
 				);
 			};
-			PBXPerProjectTemplateStateSaveDate = 561258474;
-			PBXWorkspaceStateSaveDate = 561258474;
+			PBXPerProjectTemplateStateSaveDate = 569588119;
+			PBXWorkspaceStateSaveDate = 569588119;
 		};
 		perUserProjectItems = {
 			8B15DB8E21742E37007AD769 /* PlistBookmark */ = 8B15DB8E21742E37007AD769 /* PlistBookmark */;
-			8BE627BC215F0C7700E4E476 /* PlistBookmark */ = 8BE627BC215F0C7700E4E476 /* PlistBookmark */;
+			8B79275021F339F0006E9731 /* PlistBookmark */ = 8B79275021F339F0006E9731 /* PlistBookmark */;
 		};
 		sourceControlManager = 8BD3CCB8148830B20062E48C /* Source Control */;
 		userBuildSettings = {
@@ -72,12 +72,24 @@
 		rLen = 0;
 		rLoc = 0;
 	};
+	8B79275021F339F0006E9731 /* PlistBookmark */ = {
+		isa = PlistBookmark;
+		fRef = 8D01CCD10486CAD60068D4B7 /* Info.plist */;
+		fallbackIsa = PBXBookmark;
+		isK = 0;
+		kPath = (
+			CFBundleName,
+		);
+		name = /Users/christopherjohnson/Desktop/MacAU/ADT/Info.plist;
+		rLen = 0;
+		rLoc = 0;
+	};
 	8BA05A660720730100365D66 /* ADT.cpp */ = {
 		uiCtxt = {
-			sepNavIntBoundsRect = "{{0, 0}, {719, 4563}}";
-			sepNavSelRange = "{14352, 0}";
-			sepNavVisRange = "{0, 0}";
-			sepNavWindowFrame = "{{701, 68}, {890, 810}}";
+			sepNavIntBoundsRect = "{{0, 0}, {843, 4654}}";
+			sepNavSelRange = "{13854, 0}";
+			sepNavVisRange = "{12187, 1670}";
+			sepNavWindowFrame = "{{396, 68}, {890, 810}}";
 		};
 	};
 	8BA05A690720730100365D66 /* ADTVersion.h */ = {
@@ -92,8 +104,8 @@
 		uiCtxt = {
 			sepNavIntBoundsRect = "{{0, 0}, {894, 2028}}";
 			sepNavSelRange = "{5711, 0}";
-			sepNavVisRange = "{2516, 1388}";
-			sepNavWindowFrame = "{{712, 68}, {890, 810}}";
+			sepNavVisRange = "{4340, 1557}";
+			sepNavWindowFrame = "{{550, 68}, {890, 810}}";
 		};
 	};
 	8BD3CCB8148830B20062E48C /* Source Control */ = {
@@ -110,18 +122,6 @@
 		isa = PBXCodeSenseManager;
 		indexTemplatePath = "";
 	};
-	8BE627BC215F0C7700E4E476 /* PlistBookmark */ = {
-		isa = PlistBookmark;
-		fRef = 8D01CCD10486CAD60068D4B7 /* Info.plist */;
-		fallbackIsa = PBXBookmark;
-		isK = 0;
-		kPath = (
-			CFBundleName,
-		);
-		name = /Users/christopherjohnson/Desktop/MacAU/ADT/Info.plist;
-		rLen = 0;
-		rLoc = 9223372036854775808;
-	};
 	8D01CCC60486CAD60068D4B7 /* ADT */ = {
 		activeExec = 0;
 	};
diff --git a/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.perspectivev3 b/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.perspectivev3
index fb2f9be..4fab981 100755
--- a/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.perspectivev3
+++ b/plugins/MacAU/ADT/ADT.xcodeproj/christopherjohnson.perspectivev3
@@ -225,8 +225,8 @@
 	<array/>
 	<key>PerspectiveWidths</key>
 	<array>
-		<integer>841</integer>
-		<integer>841</integer>
+		<integer>653</integer>
+		<integer>653</integer>
 	</array>
 	<key>Perspectives</key>
 	<array>
@@ -324,7 +324,7 @@
 							<real>288</real>
 						</array>
 						<key>RubberWindowFrame</key>
-						<string>775 349 653 504 0 0 1440 878 </string>
+						<string>597 292 653 504 0 0 1440 878 </string>
 					</dict>
 					<key>Module</key>
 					<string>PBXSmartGroupTreeModule</string>
@@ -352,10 +352,10 @@
 										<key>_historyCapacity</key>
 										<integer>0</integer>
 										<key>bookmark</key>
-										<string>8B15DB8E21742E37007AD769</string>
+										<string>8B79275021F339F0006E9731</string>
 										<key>history</key>
 										<array>
-											<string>8BE627BC215F0C7700E4E476</string>
+											<string>8B15DB8E21742E37007AD769</string>
 										</array>
 									</dict>
 									<key>SplitCount</key>
@@ -371,7 +371,7 @@
 								<key>Frame</key>
 								<string>{{0, 0}, {343, 0}}</string>
 								<key>RubberWindowFrame</key>
-								<string>775 349 653 504 0 0 1440 878 </string>
+								<string>597 292 653 504 0 0 1440 878 </string>
 							</dict>
 							<key>Module</key>
 							<string>PBXNavigatorGroup</string>
@@ -395,8 +395,6 @@
 									<dict>
 										<key>Frame</key>
 										<string>{{10, 27}, {343, 431}}</string>
-										<key>RubberWindowFrame</key>
-										<string>775 349 653 504 0 0 1440 878 </string>
 									</dict>
 									<key>Module</key>
 									<string>XCDetailModule</string>
@@ -450,7 +448,9 @@
 									<key>GeometryConfiguration</key>
 									<dict>
 										<key>Frame</key>
-										<string>{{10, 27}, {531, 339}}</string>
+										<string>{{10, 27}, {343, 431}}</string>
+										<key>RubberWindowFrame</key>
+										<string>597 292 653 504 0 0 1440 878 </string>
 									</dict>
 									<key>Module</key>
 									<string>PBXBuildResultsModule</string>
@@ -478,11 +478,11 @@
 			</array>
 			<key>TableOfContents</key>
 			<array>
-				<string>8B15DB7F21741FEB007AD769</string>
+				<string>8B79274221F339AE006E9731</string>
 				<string>1CA23ED40692098700951B8B</string>
-				<string>8B15DB8021741FEB007AD769</string>
+				<string>8B79274321F339AE006E9731</string>
 				<string>8BD7274A1D46E5A5000176F0</string>
-				<string>8B15DB8121741FEB007AD769</string>
+				<string>8B79274421F339AE006E9731</string>
 				<string>1CA23EDF0692099D00951B8B</string>
 				<string>1CA23EE00692099D00951B8B</string>
 				<string>1CA23EE10692099D00951B8B</string>
@@ -655,7 +655,7 @@
 	<key>StatusbarIsVisible</key>
 	<true/>
 	<key>TimeStamp</key>
-	<real>561262135.87675905</real>
+	<real>569588208.91309297</real>
 	<key>ToolbarConfigUserDefaultsMinorVersion</key>
 	<string>2</string>
 	<key>ToolbarDisplayMode</key>
@@ -675,7 +675,7 @@
 		<string>/Users/christopherjohnson/Desktop/MacAU/ADT/ADT.xcodeproj</string>
 	</array>
 	<key>WindowString</key>
-	<string>775 349 653 504 0 0 1440 878 </string>
+	<string>597 292 653 504 0 0 1440 878 </string>
 	<key>WindowToolsV3</key>
 	<array>
 		<dict>