diff --git a/example_test.go b/example_test.go
index 01ea47f..cdb6540 100644
--- a/example_test.go
+++ b/example_test.go
@@ -32,7 +32,7 @@
 			// replace ETA decorator with "done" message, OnComplete event
 			decor.OnComplete(
 				// ETA decorator with ewma age of 60, and width reservation of 4
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 4}), "done",
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 4}), "done",
 			),
 		),
 		mpb.AppendDecorators(decor.Percentage()),
diff --git a/examples/cancel/main.go b/examples/cancel/main.go
index 5609e97..f400fbd 100644
--- a/examples/cancel/main.go
+++ b/examples/cancel/main.go
@@ -36,7 +36,7 @@
 		bar := p.AddBar(int64(total),
 			mpb.PrependDecorators(
 				decor.Name(name),
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
 			),
 			mpb.AppendDecorators(
 				decor.Percentage(decor.WC{W: 5}),
diff --git a/examples/complex/main.go b/examples/complex/main.go
index 3181ef6..125071d 100644
--- a/examples/complex/main.go
+++ b/examples/complex/main.go
@@ -54,7 +54,9 @@
 				mpb.PrependDecorators(
 					decor.Name(task, decor.WC{W: len(task) + 1, C: decor.DidentRight}),
 					decor.OnComplete(decor.Name(job, decor.WCSyncSpaceR), "done!", decor.WCSyncSpaceR),
-					decor.OnComplete(decor.ETA(decor.ET_STYLE_MMSS, 60, sbEta, decor.WCSyncWidth), "", decor.WCSyncSpace),
+					decor.OnComplete(
+						decor.EwmaETA(decor.ET_STYLE_MMSS, 60, sbEta, decor.WCSyncWidth), "", decor.WCSyncSpace,
+					),
 				),
 				mpb.AppendDecorators(
 					decor.OnComplete(decor.Percentage(decor.WC{W: 5}), ""),
diff --git a/examples/io/multiple/main.go b/examples/io/multiple/main.go
index 2669bc1..397fd41 100644
--- a/examples/io/multiple/main.go
+++ b/examples/io/multiple/main.go
@@ -59,7 +59,6 @@
 	}
 
 	sbEta := make(chan time.Time)
-	sbSpeed := make(chan time.Time)
 	// create bar with appropriate decorators
 	bar := p.AddBar(size, mpb.BarPriority(n),
 		mpb.PrependDecorators(
@@ -67,13 +66,13 @@
 			decor.CountersKibiByte("%6.1f / %6.1f", decor.WCSyncWidth),
 		),
 		mpb.AppendDecorators(
-			decor.ETA(decor.ET_STYLE_HHMMSS, 60, sbEta, decor.WCSyncWidth),
-			decor.SpeedKibiByte("% .2f", 60, sbSpeed, decor.WCSyncSpace),
+			decor.EwmaETA(decor.ET_STYLE_HHMMSS, 2048, sbEta, decor.WCSyncWidth),
+			decor.TotalAverageSpeed(decor.UnitKiB, "% .2f"),
 		),
 	)
 
 	// create proxy reader
-	reader := bar.ProxyReader(resp.Body, sbEta, sbSpeed)
+	reader := bar.ProxyReader(resp.Body, sbEta)
 	// and copy from reader
 	_, err = io.Copy(dest, reader)
 
diff --git a/examples/io/single/main.go b/examples/io/single/main.go
index 34e2dcc..f56a98c 100644
--- a/examples/io/single/main.go
+++ b/examples/io/single/main.go
@@ -44,20 +44,19 @@
 	)
 
 	sbEta := make(chan time.Time)
-	sbSpeed := make(chan time.Time)
 	bar := p.AddBar(size,
 		mpb.PrependDecorators(
 			decor.CountersKibiByte("% 6.1f / % 6.1f"),
 		),
 		mpb.AppendDecorators(
-			decor.MovingAverageETA(decor.ET_STYLE_MMSS, decor.NewMedianEwma(300), sbEta),
+			decor.EwmaETA(decor.ET_STYLE_MMSS, 2048, sbEta),
 			decor.Name(" ] "),
-			decor.MovingAverageSpeed(decor.UnitKiB, "% .2f", decor.NewMedianEwma(300), sbSpeed),
+			decor.TotalAverageSpeed(decor.UnitKiB, "% .2f"),
 		),
 	)
 
 	// create proxy reader
-	reader := bar.ProxyReader(resp.Body, sbEta, sbSpeed)
+	reader := bar.ProxyReader(resp.Body, sbEta)
 
 	// and copy from reader, ignoring errors
 	io.Copy(dest, reader)
diff --git a/examples/prependETA/main.go b/examples/prependETA/main.go
index 6ccf829..dd8dfe0 100644
--- a/examples/prependETA/main.go
+++ b/examples/prependETA/main.go
@@ -31,7 +31,7 @@
 			mpb.PrependDecorators(
 				decor.Name(name, decor.WCSyncWidth),
 				decor.OnComplete(
-					decor.ETA(decor.ET_STYLE_MMSS, 60, sbEta, decor.WC{W: 6}),
+					decor.EwmaETA(decor.ET_STYLE_MMSS, 60, sbEta, decor.WC{W: 6}),
 					"Done",
 					decor.WCSyncSpace,
 				),
diff --git a/examples/remove/main.go b/examples/remove/main.go
index ea1a249..a0f530b 100644
--- a/examples/remove/main.go
+++ b/examples/remove/main.go
@@ -34,7 +34,7 @@
 			bOption,
 			mpb.PrependDecorators(
 				decor.Name(name),
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
 			),
 			mpb.AppendDecorators(decor.Percentage()),
 		)
diff --git a/examples/simple/main.go b/examples/simple/main.go
index ed28ce2..ba6ba05 100644
--- a/examples/simple/main.go
+++ b/examples/simple/main.go
@@ -34,7 +34,7 @@
 				// replace ETA decorator with "done" message, OnComplete event
 				decor.OnComplete(
 					// ETA decorator with ewma age of 60
-					decor.ETA(decor.ET_STYLE_GO, 60, sbEta), "done",
+					decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta), "done",
 				),
 			),
 		)
diff --git a/examples/singleBar/main.go b/examples/singleBar/main.go
index 3e787b1..41299a4 100644
--- a/examples/singleBar/main.go
+++ b/examples/singleBar/main.go
@@ -29,7 +29,7 @@
 			// replace ETA decorator with "done" message, OnComplete event
 			decor.OnComplete(
 				// ETA decorator with ewma age of 60, and width reservation of 4
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 4}), "done",
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 4}), "done",
 			),
 		),
 		mpb.AppendDecorators(decor.Percentage()),
diff --git a/examples/sort/main.go b/examples/sort/main.go
index 6062afb..a9744ed 100644
--- a/examples/sort/main.go
+++ b/examples/sort/main.go
@@ -33,7 +33,7 @@
 				decor.CountersNoUnit("%d / %d", decor.WCSyncSpace),
 			),
 			mpb.AppendDecorators(
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 3}),
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WC{W: 3}),
 			),
 		)
 		go func() {
diff --git a/examples/stress/main.go b/examples/stress/main.go
index 53db2da..19cb667 100644
--- a/examples/stress/main.go
+++ b/examples/stress/main.go
@@ -31,7 +31,7 @@
 		bar := p.AddBar(int64(total),
 			mpb.PrependDecorators(
 				decor.Name(name),
-				decor.ETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
+				decor.EwmaETA(decor.ET_STYLE_GO, 60, sbEta, decor.WCSyncSpace),
 			),
 			mpb.AppendDecorators(
 				decor.Percentage(decor.WC{W: 5}),