diff --git a/src/spek-ruler.vala b/src/spek-ruler.vala
index 07bf965..bb1dc7e 100644
--- a/src/spek-ruler.vala
+++ b/src/spek-ruler.vala
@@ -24,6 +24,7 @@ namespace Spek {
 		private string sample_label;
 		private int[] factors;
 		private int units;
+		private double spacing;
 		private UnitToPixel unit_to_pixel;
 		private FormatTick format_tick;
 
@@ -31,11 +32,12 @@ namespace Spek {
 		public delegate string FormatTick (int unit);
 
 		public Ruler (
-			string sample_label, int[] factors, int units,
+			string sample_label, int[] factors, int units, double spacing,
 			UnitToPixel unit_to_pixel, FormatTick format_tick) {
 			this.sample_label = sample_label;
 			this.factors = factors;
 			this.units = units;
+			this.spacing = spacing;
 			this.unit_to_pixel = unit_to_pixel;
 			this.format_tick = format_tick;
 		}
@@ -49,7 +51,7 @@ namespace Spek {
 			// Select the factor to use, we want some space between the labels.
 			int factor = 0;
 			foreach (var f in factors) {
-				if (unit_to_pixel (f) >= 1.5 * size) {
+				if (unit_to_pixel (f) >= spacing * size) {
 					factor = f;
 					break;
 				}
@@ -59,7 +61,7 @@ namespace Spek {
 			int[] ticks = { 0, units };
 			if (factor > 0) {
 				for (var tick = factor; tick < units; tick += factor) {
-					if (unit_to_pixel (units - tick) < size) {
+					if (unit_to_pixel (units - tick) < size * 1.2) {
 						break;
 					}
 					ticks += tick;
diff --git a/src/spek-spectrogram.vala b/src/spek-spectrogram.vala
index a7ee3f8..c348790 100644
--- a/src/spek-spectrogram.vala
+++ b/src/spek-spectrogram.vala
@@ -30,7 +30,7 @@ namespace Spek {
 
 		private ImageSurface image;
 		private ImageSurface palette;
-		private const int PADDING = 60;
+		private const int PADDING = 50;
 		private const int GAP = 10;
 		private const int RULER = 10;
 
@@ -133,6 +133,7 @@ namespace Spek {
 					"00:00",
 					{1, 2, 5, 10, 20, 30, 1*60, 2*60, 5*60, 10*60, 20*60, 30*60},
 					duration_seconds,
+					1.5,
 					unit => (w - 2 * PADDING) * unit / duration_seconds,
 					unit => "%d:%02d".printf (unit / 60, unit % 60));
 				cr.translate (PADDING, h - PADDING);
@@ -142,11 +143,12 @@ namespace Spek {
 				// Frequency ruler.
 				var freq = source.rate / 2;
 				var rate_ruler = new Ruler (
-					"00.0 kHz",
+					"00 kHz",
 					{1000, 2000, 5000, 10000, 20000},
 					freq,
+					4.0,
 					unit => (h - 2 * PADDING) * unit / freq,
-					unit => "%d.%01d kHz".printf (unit / 1000, (unit % 1000) / 100));
+					unit => "%d kHz".printf (unit / 1000));
 				cr.translate (PADDING, PADDING);
 				rate_ruler.draw (cr, false);
 				cr.identity_matrix ();