diff --git a/server/src/main/java/com/genymobile/scrcpy/AudioEncoder.java b/server/src/main/java/com/genymobile/scrcpy/AudioEncoder.java
index 8746d324..d8f3f534 100644
--- a/server/src/main/java/com/genymobile/scrcpy/AudioEncoder.java
+++ b/server/src/main/java/com/genymobile/scrcpy/AudioEncoder.java
@@ -200,6 +200,12 @@ public final class AudioEncoder {
 
     @TargetApi(Build.VERSION_CODES.M)
     public void encode() throws IOException {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.R) {
+            Ln.w("Audio disabled: it is not supported before Android 11");
+            streamer.writeDisableStream();
+            return;
+        }
+
         try {
             try {
                 mediaCodec = MediaCodec.createEncoderByType(MIMETYPE); // may throw IOException