diff --git a/gumble/gumble/integration_audio_test.go b/gumble/gumble/integration_audio_test.go
index c17e90c..676ade5 100644
--- a/gumble/gumble/integration_audio_test.go
+++ b/gumble/gumble/integration_audio_test.go
@@ -37,6 +37,14 @@ func TestLocalMumbleAudioTwentyMilliseconds(t *testing.T) {
 	testLocalMumbleAudioRoundTrip(t, false, 20*time.Millisecond)
 }
 
+func TestLocalMumbleAudioFortyMilliseconds(t *testing.T) {
+	testLocalMumbleAudioRoundTrip(t, false, 40*time.Millisecond)
+}
+
+func TestLocalMumbleAudioSixtyMilliseconds(t *testing.T) {
+	testLocalMumbleAudioRoundTrip(t, false, 60*time.Millisecond)
+}
+
 // Regression: TCP tunnel fallback must remain usable when UDP is deliberately
 // disabled or blocked, rather than silently dropping valid audio.
 func TestLocalMumbleTCPAudioFallback(t *testing.T) {