diff --git a/openrtx/src/core/audio_codec.c b/openrtx/src/core/audio_codec.c
index 7af6480a..6423c3da 100644
--- a/openrtx/src/core/audio_codec.c
+++ b/openrtx/src/core/audio_codec.c
@@ -46,7 +46,7 @@ static uint64_t         dataBuffer[BUF_SIZE];
 
 #ifdef PLATFORM_MOD17
 static const uint8_t micGainPre  = 4;
-static const uint8_t micGainPost = 6;
+static const uint8_t micGainPost = 3;
 #else
 static const uint8_t micGainPre  = 8;
 static const uint8_t micGainPost = 4;
diff --git a/openrtx/src/core/dsp.cpp b/openrtx/src/core/dsp.cpp
index 3d2dfd63..8249bcda 100644
--- a/openrtx/src/core/dsp.cpp
+++ b/openrtx/src/core/dsp.cpp
@@ -76,6 +76,7 @@ void dsp_dcRemoval(audio_sample_t *buffer, size_t length)
         uo = u;
         yo = buffer[i];
     }
+    buffer[0] = buffer[1];
 }
 
 void dsp_invertPhase(audio_sample_t *buffer, uint16_t length)