From f790b3d5abdfb2f557bee655c71258b07106159e Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Wed, 7 Feb 2018 14:19:53 -0500
Subject: [PATCH] SDL quiescent audio level = 0x80, not 0x00

---
 sdl/sdl-speaker.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sdl/sdl-speaker.cpp b/sdl/sdl-speaker.cpp
index 076b065..e7c4053 100644
--- a/sdl/sdl-speaker.cpp
+++ b/sdl/sdl-speaker.cpp
@@ -25,7 +25,7 @@ static void audioCallback(void *unused, Uint8 *stream, int len)
   if (g_biosInterrupt) {
     // While the BIOS is running, we don't put samples in the audio
     // queue.
-    memset(stream, 0, len);
+    memset(stream, 0x80, len);
     pthread_mutex_unlock(&sndmutex);
     return;
   }