diff --git a/src/RageSoundReader_Resample_Good.cpp b/src/RageSoundReader_Resample_Good.cpp
index f32530f9ae..0c3f3e0476 100644
--- a/src/RageSoundReader_Resample_Good.cpp
+++ b/src/RageSoundReader_Resample_Good.cpp
@@ -667,7 +667,7 @@ int RageSoundReader_Resample_Good::Read( float *pBuf, int iFrames )
 
 	{
 		int iFramesNeeded = m_apResamplers[0]->NumInputsForOutputSamples(iFrames);
-		float pTmpBuf[iFramesNeeded * iChannels];
+		float *pTmpBuf = (float *) alloca( iFramesNeeded * sizeof(float) * iChannels );
 		int iFramesIn = m_pSource->Read( pTmpBuf, iFramesNeeded );
 		if( iFramesIn < 0 )
 			return iFramesIn;
diff --git a/src/RageSoundReader_SpeedChange.cpp b/src/RageSoundReader_SpeedChange.cpp
index 54801c3505..919f9a4c24 100644
--- a/src/RageSoundReader_SpeedChange.cpp
+++ b/src/RageSoundReader_SpeedChange.cpp
@@ -89,10 +89,11 @@ int RageSoundReader_SpeedChange::FillData( int iMaxFrames )
 		if( iBytesToRead <= 0 )
 			return m_iDataBufferAvailFrames;
 
-		float pTempBuffer[iBytesToRead/sizeof(float)];
+		float* pTempBuffer= new float[iBytesToRead/sizeof(float)];
 		int iGotFrames = m_pSource->Read( pTempBuffer, iFramesToRead );
 		if( iGotFrames < 0 )
 		{
+			delete[] pTempBuffer;
 			if( iGotFrames == END_OF_FILE && m_iDataBufferAvailFrames )
 				return m_iDataBufferAvailFrames;
 			return iGotFrames;
@@ -114,6 +115,7 @@ int RageSoundReader_SpeedChange::FillData( int iMaxFrames )
 				++pOut;
 			}
 		}
+		delete[] pTempBuffer;
 
 		m_iDataBufferAvailFrames += iGotFrames;
 	}
diff --git a/src/RageSoundReader_WAV.cpp b/src/RageSoundReader_WAV.cpp
index aafed8f658..27a423bb2d 100644
--- a/src/RageSoundReader_WAV.cpp
+++ b/src/RageSoundReader_WAV.cpp
@@ -288,8 +288,7 @@ public:
 		/* We've read the block header; read the rest.  Don't read past the end of the data chunk. */
 		int iMaxSize = min( (int) m_WavData.m_iBlockAlign - 7 * m_WavData.m_iChannels, (m_WavData.m_iDataChunkSize+m_WavData.m_iDataChunkPos) - m_File.Tell() );
 
-		char cBuf[iMaxSize];
-		char* pBuf= cBuf;
+		char *pBuf = (char *) alloca( iMaxSize );
 
 		int iBlockSize = m_File.Read( pBuf, iMaxSize );
 		if( iBlockSize == 0 )