diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 2047e27..4cb0f8b 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -3145,11 +3145,11 @@
 {
     const sp<IAfThreadBase> t = thread().promote();
     if (t == nullptr) {
-        return AUDIO_CHANNEL_NONE;
+        return AUDIO_CHANNEL_OUT_STEREO;
     }
     sp<IAfEffectChain> c = chain().promote();
     if (c == nullptr) {
-        return AUDIO_CHANNEL_NONE;
+        return AUDIO_CHANNEL_OUT_STEREO;
     }
 
     if (mThreadType == IAfThreadBase::SPATIALIZER) {
@@ -3184,11 +3184,11 @@
 {
     const sp<IAfThreadBase> t = thread().promote();
     if (t == nullptr) {
-        return AUDIO_CHANNEL_NONE;
+        return AUDIO_CHANNEL_OUT_STEREO;
     }
     sp<IAfEffectChain> c = chain().promote();
     if (c == nullptr) {
-        return AUDIO_CHANNEL_NONE;
+        return AUDIO_CHANNEL_OUT_STEREO;
     }
 
     if (mThreadType == IAfThreadBase::SPATIALIZER) {