diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp b/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
index 0f8467f693..a143fe450c 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
@@ -266,12 +266,11 @@ void AESndAccelerator::WriteMemory(u32 address, u8 value)
 
 static constexpr std::array<s16, 16> ACCELERATOR_COEFS = {};  // all zeros
 
-void AESndUCode::SetUpAccelerator(u16 format, [[maybe_unused]] u16 gain)
+void AESndUCode::SetUpAccelerator(u16 format, u16 gain)
 {
   // setup_accl
   m_accelerator.SetSampleFormat(format);
-  // not currently implemented, but it doesn't matter since the gain is configured to be a no-op
-  // m_accelerator.SetGain(gain);
+  m_accelerator.SetGain(gain);
   m_accelerator.SetStartAddress(m_parameter_block.buf_start);
   m_accelerator.SetEndAddress(m_parameter_block.buf_end);
   m_accelerator.SetCurrentAddress(m_parameter_block.buf_curr);
diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/AXVoice.h b/Source/Core/Core/HW/DSPHLE/UCodes/AXVoice.h
index e5aefd0c77..4822af6c56 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/AXVoice.h
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/AXVoice.h
@@ -183,6 +183,7 @@ void AcceleratorSetup(HLEAccelerator* accelerator, PB_TYPE* pb)
   accelerator->SetSampleFormat(pb->audio_addr.sample_format);
   accelerator->SetYn1(pb->adpcm.yn1);
   accelerator->SetYn2(pb->adpcm.yn2);
+  accelerator->SetGain(pb->adpcm.gain);
   accelerator->SetPredScale(pb->adpcm.pred_scale);
 }