diff --git a/demos/README.md b/demos/README.md
index ea3ef883e..d07738e58 100644
--- a/demos/README.md
+++ b/demos/README.md
@@ -11,4 +11,6 @@ contact me or send a pull request if you want your song to be added to this coll
 - Nintendo covers are frowned upon
 - big label music covers also are discouraged
 
+tildearrow also accepts demo songs in the .dmf format as well as the .fur format.
+
 thank you for contributing!
diff --git a/extern/vgsound_emu-modified/vgsound_emu/src/x1_010/x1_010.cpp b/extern/vgsound_emu-modified/vgsound_emu/src/x1_010/x1_010.cpp
index c249e5548..23b7df72b 100644
--- a/extern/vgsound_emu-modified/vgsound_emu/src/x1_010/x1_010.cpp
+++ b/extern/vgsound_emu-modified/vgsound_emu/src/x1_010/x1_010.cpp
@@ -122,7 +122,7 @@ void x1_010_core::voice_t::reg_w(u8 offset, u8 data)
 				m_flag.write(data);
 				if (!prev_keyon && m_flag.keyon())	// Key on
 				{
-					m_acc	  = m_flag.wavetable() ? 0 : (u32(m_start_envfreq) << 16);
+					m_acc	  = m_flag.wavetable() ? 0 : (u32(m_start_envfreq) << 17);
 					m_env_acc = 0;
 				}
 				break;