forgot to add free() to the previous malloc change

Externals/soundtouch/FIRFilter.cpp

@@ -217,6 +217,7 @@ uint FIRFilter::evaluateFilterMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, uin
             sum[c] = 0;
         }
     }
+    free(sum);
     return numSamples - length;
 }
 

Externals/soundtouch/SoundTouch.cpp

@@ -383,6 +383,7 @@ void SoundTouch::flush()
     pTDStretch->clearInput();
     // yet leave the 'tempoChanger' output intouched as that's where the
     // flushed samples are!
+    free(buff);
 }