diff --git a/autobuild.xml b/autobuild.xml
index 3d34c78c01..5720cc8c0f 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -2793,11 +2793,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>8987b409ab7254ed22dab6dfbaefa059e7ab000e</string>
+              <string>cbf9fae6cdc6983456eec601a596ce27c961f05f</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.71-debug/webrtc-m114.5735.08.71-debug.10436964656-darwin64-10436964656.tar.zst</string>
+              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.72-debug/webrtc-m114.5735.08.72-debug.10438479298-darwin64-10438479298.tar.zst</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -2807,11 +2807,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>153a220a138f9abe0e35fd63ea7f114b1117b4d6</string>
+              <string>8a874c6bd96cdcce8b6fe744f235dc60f1bb4279</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.71-debug/webrtc-m114.5735.08.71-debug.10436964656-linux64-10436964656.tar.zst</string>
+              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.72-debug/webrtc-m114.5735.08.72-debug.10438479298-linux64-10438479298.tar.zst</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -2821,11 +2821,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>709f23421d9de07fddd37ac4fd2cc4bb723bb4d7</string>
+              <string>379e29faa67a826729179f7228146e2812a6088a</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.71-debug/webrtc-m114.5735.08.71-debug.10436964656-windows64-10436964656.tar.zst</string>
+              <string>https://github.com/secondlife/3p-webrtc-build/releases/download/m114.5735.08.72-debug/webrtc-m114.5735.08.72-debug.10438479298-windows64-10438479298.tar.zst</string>
             </map>
             <key>name</key>
             <string>windows64</string>
@@ -2838,7 +2838,7 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <key>copyright</key>
         <string>Copyright (c) 2011, The WebRTC project authors. All rights reserved.</string>
         <key>version</key>
-        <string>m114.5735.08.71-debug.10436964656</string>
+        <string>m114.5735.08.72-debug.10438479298</string>
         <key>name</key>
         <string>webrtc</string>
         <key>vcs_branch</key>
diff --git a/indra/llwebrtc/llwebrtc.cpp b/indra/llwebrtc/llwebrtc.cpp
index dd7883f973..0daa767766 100644
--- a/indra/llwebrtc/llwebrtc.cpp
+++ b/indra/llwebrtc/llwebrtc.cpp
@@ -849,7 +849,7 @@ bool LLWebRTCPeerConnectionImpl::initializeConnection(const LLWebRTCPeerConnecti
                 codecparam.clock_rate                 = 48000;
                 codecparam.num_channels               = 2;
                 codecparam.parameters["stereo"]       = "1";
-                codecparam.parameters["sprop-stereo"] = "0";
+                codecparam.parameters["sprop-stereo"] = "1";
                 params.codecs.push_back(codecparam);
                 sender->SetParameters(params);
             }
@@ -864,7 +864,7 @@ bool LLWebRTCPeerConnectionImpl::initializeConnection(const LLWebRTCPeerConnecti
                 codecparam.clock_rate                 = 48000;
                 codecparam.num_channels               = 2;
                 codecparam.parameters["stereo"]       = "1";
-                codecparam.parameters["sprop-stereo"] = "0";
+                codecparam.parameters["sprop-stereo"] = "1";
                 params.codecs.push_back(codecparam);
                 receiver->SetParameters(params);
             }
@@ -1011,7 +1011,7 @@ void LLWebRTCPeerConnectionImpl::OnAddTrack(rtc::scoped_refptr<webrtc::RtpReceiv
     codecparam.clock_rate                 = 48000;
     codecparam.num_channels               = 2;
     codecparam.parameters["stereo"]       = "1";
-    codecparam.parameters["sprop-stereo"] = "0";
+    codecparam.parameters["sprop-stereo"] = "1";
     params.codecs.push_back(codecparam);
     receiver->SetParameters(params);
 }
@@ -1202,7 +1202,7 @@ void LLWebRTCPeerConnectionImpl::OnSuccess(webrtc::SessionDescriptionInterface *
         else if (sdp_line.find("a=fmtp:" + opus_payload) == 0)
         {
             sdp_mangled_stream << sdp_line << "a=fmtp:" << opus_payload
-            << " minptime=10;useinbandfec=1;stereo=1;sprop-stereo=0;maxplaybackrate=48000;sprop-maxplaybackrate=48000;sprop-maxcapturerate=48000\n";
+            << " minptime=10;useinbandfec=1;stereo=1;sprop-stereo=1;maxplaybackrate=48000;sprop-maxplaybackrate=48000;sprop-maxcapturerate=48000\n";
         }
         else
         {