From 5e5e56f58949fb4db81fd67a916fa8008b74bc4c Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Mon, 20 Jul 2015 16:18:34 +0200
Subject: use power of 2 log-scale for parameters.

---
 libs/ardour/automation_control.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libs/ardour/automation_control.cc b/libs/ardour/automation_control.cc
index bfb1046849..26ea53cbd2 100644
--- a/libs/ardour/automation_control.cc
+++ b/libs/ardour/automation_control.cc
@@ -175,7 +175,7 @@ AutomationControl::internal_to_interface (double val) const
 
 	if (_desc.logarithmic) {
 		if (val > 0) {
-			val = pow (val, 1/1.5);
+			val = pow (val, 1./2.0);
 		} else {
 			val = 0;
 		}
@@ -191,7 +191,7 @@ AutomationControl::interface_to_internal (double val) const
 		if (val <= 0) {
 			val = 0;
 		} else {
-			val = pow (val, 1.5);
+			val = pow (val, 2.0);
 		}
 	}
 
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