From 093355d9a1f970edd109538b590db10cfeb5ea05 Mon Sep 17 00:00:00 2001
From: Andrew Belt <andrewpbelt@gmail.com>
Date: Wed, 21 Mar 2018 03:29:06 -0400
Subject: [PATCH] Improve Delay algorithm

---
 src/Delay.cpp | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/Delay.cpp b/src/Delay.cpp
index 1ce1602..05a659c 100644
--- a/src/Delay.cpp
+++ b/src/Delay.cpp
@@ -59,8 +59,6 @@ void Delay::step() {
 	// Number of delay samples
 	float index = delay * engineGetSampleRate();
 
-	// TODO Rewrite this digital delay algorithm.
-
 	// Push dry sample into history buffer
 	if (!historyBuffer.full()) {
 		historyBuffer.push(dry);
@@ -68,12 +66,12 @@ void Delay::step() {
 
 	// How many samples do we need consume to catch up?
 	float consume = index - historyBuffer.size();
+
 	if (outBuffer.empty()) {
-		double ratio = 1.0f;
-		if (consume <= -16)
-			ratio = 0.5f;
-		else if (consume >= 16)
-			ratio = 2.0f;
+		double ratio = 1.f;
+		if (abs(consume) >= 16) {
+			ratio = powf(10.f, clamp(consume / 10000.f, -1.f, 1.f));
+		}
 
 		SRC_DATA srcData;
 		srcData.data_in = (const float*) historyBuffer.startData();