diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.cpp b/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.cpp
index bb255dfb5b..ee8345cb17 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.cpp
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.cpp
@@ -57,7 +57,8 @@ constexpr u32 SAMPLE_RATE = 48000;
 
 bool ASndUCode::SwapLeftRight() const
 {
-  return m_crc == HASH_DESERT_BUS_2011 || m_crc == HASH_DESERT_BUS_2012;
+  return m_crc == HASH_2008 || m_crc == HASH_2009 || m_crc == HASH_2011 || m_crc == HASH_2020 ||
+         m_crc == HASH_2020_PAD;
 }
 
 bool ASndUCode::UseNewFlagMasks() const
@@ -398,11 +399,12 @@ void ASndUCode::DoMixing(u32 return_mail)
         }
         // Both paths jmpr $AR3, which is an index into sample_selector
 
-        auto [new_r, new_l] = (this->*sample_function)();
+        auto [new_l, new_r] = (this->*sample_function)();
         if (SwapLeftRight())
         {
+          // Most versions of the ASnd ucode have the right channel come before the left channel.
           // The Desert Bus versions swapped the left and right input channels so that left
-          // comes first, and then right. Before, right came before left.
+          // comes first, and then right, matching mp3/ogg files.
           std::swap(new_r, new_l);
         }
         // out_samp: "multiply sample x volume" - left is put in $ax0.h, right is put in $ax1.h
diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.h b/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.h
index 51524ad7ef..faec4c2151 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.h
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/ASnd.h
@@ -53,7 +53,8 @@ public:
   static constexpr u32 HASH_2020_PAD = 0xbad876ef;
   // Variant used in Desert Bus v1.04 - this is based off of the code in libogc (as it existed in
   // 2011, even though that code only became used in 2020), but the left and right channels are
-  // swapped. Padded to 0x0620 bytes.
+  // swapped (with the left channel coming before the right channel, which is the the conventional
+  // behavior). Padded to 0x0620 bytes.
   static constexpr u32 HASH_DESERT_BUS_2011 = 0xfa9c576f;
   // Variant used in Desert Bus v1.05 - this is the same as the previous version, except 4 junk
   // instructions were added to the start, which do not change behavior in any way. Padded to 0x0620