From 4483232f57ebdc444bf045120c302235a211e737 Mon Sep 17 00:00:00 2001
From: Chung-yih Wang <cywang@google.com>
Date: Fri, 8 Oct 2010 06:06:56 +0800
Subject: [PATCH] Suppress harder for echo without affecting the volume of real
 voice.

Change-Id: Ia3ce98eedd487a9e879ff0a4907b8c15b5707429
---
 voip/jni/rtp/EchoSuppressor.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/voip/jni/rtp/EchoSuppressor.cpp b/voip/jni/rtp/EchoSuppressor.cpp
index a1a7aed82b799..ad63cd63a0c23 100644
--- a/voip/jni/rtp/EchoSuppressor.cpp
+++ b/voip/jni/rtp/EchoSuppressor.cpp
@@ -157,11 +157,12 @@ void EchoSuppressor::run(int16_t *playbacked, int16_t *recorded)
     if (correlation > 0.3f) {
         float factor = 1.0f - correlation;
         factor *= factor;
+        factor /= 2.0; // suppress harder
         for (int i = 0; i < mSampleCount; ++i) {
             recorded[i] *= factor;
         }
     }
-//    LOGI("latency %5d, correlation %.10f", latency, correlation);
+    //LOGI("latency %5d, correlation %.10f", latency, correlation);
 
 
     // Increase RecordOffset.