diff --git a/BizHawk.Emulation.Cores/Consoles/GCE/Vectrex/Audio.cs b/BizHawk.Emulation.Cores/Consoles/GCE/Vectrex/Audio.cs
index ed414dea08..0c03b02260 100644
--- a/BizHawk.Emulation.Cores/Consoles/GCE/Vectrex/Audio.cs
+++ b/BizHawk.Emulation.Cores/Consoles/GCE/Vectrex/Audio.cs
@@ -355,6 +355,11 @@ namespace BizHawk.Emulation.Cores.Consoles.Vectrex
 
 			_blip.ReadSamples(samples, nsamp, true);
 
+			for (int i = 0; i < nsamp * 2; i += 2)
+			{
+				samples[i + 1] = samples[i];
+			}				
+
 			master_audio_clock = 0;
 		}