From b9b7077c4d68d1ea17d5d7203177ae5efe0f7e30 Mon Sep 17 00:00:00 2001
From: Jens Ahrensfeld <jens@jayfield.org>
Date: Sun, 16 Nov 2025 10:16:55 +0100
Subject: [PATCH] added early reflections

---
 reverb/reverb.hpp | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/reverb/reverb.hpp b/reverb/reverb.hpp
index 9895c60..c9a52df 100644
--- a/reverb/reverb.hpp
+++ b/reverb/reverb.hpp
@@ -5,15 +5,18 @@
 #include <common/mix.hpp>
 #include <initializer_list>
 #include <sys/types.h>
+#include <vector>
 #include "diffusor.hpp"
 
 
+
+
 template<typename T, uint numCh>
 class Reverb
 {
 	std::vector<Diffusor<T, numCh>> m_diffusors;
 	MultiDelay<T, numCh> m_feedbackDly;
-
+	std::vector<T> m_earlyGain;
 	T fb_dly_out[numCh];
 	T fb_gain;
 
@@ -21,6 +24,7 @@ class Reverb
 	Reverb(std::initializer_list<Diffusor<T, numCh>> maxDelay, uint fb_maxDelay, uint fb_minDelay)
 	: m_diffusors(maxDelay)
 	, m_feedbackDly(fb_maxDelay, fb_minDelay)
+	, m_earlyGain(maxDelay.size())
 	, fb_gain(0)
 	{
 		for (int c=0; c < numCh; c++)
@@ -34,7 +38,7 @@ class Reverb
 		return m_diffusors.size();
 	}
 	
-	void setDelay(uint delay, uint index)
+	void setDelay(uint index, uint delay)
 	{
 		m_diffusors[index].setDelay(delay);
 	}
@@ -54,6 +58,16 @@ class Reverb
 		return fb_gain;
 	}
 
+	void setEarlyGain(uint index, T gain)
+	{
+		m_earlyGain[index] = gain;
+	}
+
+	T getEarlyGain(uint index)
+	{
+		return m_earlyGain[index];
+	}
+
 	void setFeedbackDelay(uint delay_min, uint delay_max)
 	{
 		m_feedbackDly.setDelay(delay_max, delay_min);
@@ -65,9 +79,13 @@ class Reverb
 		{
 			T temp[numCh];
 			Mix<T, numCh>::split(in[i], temp);
+			T earlySum = 0;
+			int k=0;
 			for (auto diffusor: m_diffusors)
 			{
 				diffusor.process_multi(temp);
+				earlySum += m_earlyGain[k]*temp[0];
+				k++;
 			}
 
 			// Sum
@@ -81,7 +99,7 @@ class Reverb
 			// Mix
 			for (int c=0; c < numCh; c++)
 			{
-				out[i] = temp[0];
+				out[i] = temp[0] + earlySum;
 			}
 		}
 	}