Fixed a bug related to setting of internal delay value (#10)

src/effects/AudioEffectDelayExternal.cpp

@@ -202,7 +202,11 @@ void BAAudioEffectDelayExternal::initialize(void)
 
 	avail = memsize - m_allocated[m_mem];
 
-	if (m_requestedDelayLength > avail) samples = avail;
+	if (m_requestedDelayLength > avail) {
+	    samples = avail;
+	} else {
+	    samples = m_requestedDelayLength;
+	}
 	m_memoryStart = m_allocated[m_mem];
 	m_allocated[m_mem] += samples;
 	m_memoryLength = samples;