diff --git a/.gitignore b/.gitignore
index 215b6c263..5a8514f7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@ WORK
 OUTPUT
 Makefile
 submodules/tunnel
+record_for_lc_*.wav
+.bc_tester_utils.tmp
diff --git a/submodules/mswebrtc b/submodules/mswebrtc
index bae29b6f0..f6867f780 160000
--- a/submodules/mswebrtc
+++ b/submodules/mswebrtc
@@ -1 +1 @@
-Subproject commit bae29b6f0880874e2f5a5ce717d3bff06ce96f19
+Subproject commit f6867f780fc8a5122564f4813437961552396219