diff --git a/source/SoundTouch/FIRFilter.cpp b/source/SoundTouch/FIRFilter.cpp
index 422c0a2..5a84fe2 100644
--- a/source/SoundTouch/FIRFilter.cpp
+++ b/source/SoundTouch/FIRFilter.cpp
@@ -2,9 +2,15 @@
 ///
 /// General FIR digital filter routines with MMX optimization. 
 ///
-/// Note : MMX optimized functions reside in a separate, platform-specific file, 
+/// Notes : MMX optimized functions reside in a separate, platform-specific file, 
 /// e.g. 'mmx_win.cpp' or 'mmx_gcc.cpp'
 ///
+/// This source file contains OpenMP optimizations that allow speeding up the
+/// corss-correlation algorithm by executing it in several threads / CPU cores 
+/// in parallel. See the following article link for more detailed discussion 
+/// about SoundTouch OpenMP optimizations:
+/// http://www.softwarecoven.com/parallel-computing-in-embedded-mobile-devices
+///
 /// Author        : Copyright (c) Olli Parviainen
 /// Author e-mail : oparviai 'at' iki.fi
 /// SoundTouch WWW: http://www.surina.net/soundtouch
diff --git a/source/SoundTouch/TDStretch.cpp b/source/SoundTouch/TDStretch.cpp
index d42ee6d..572669c 100644
--- a/source/SoundTouch/TDStretch.cpp
+++ b/source/SoundTouch/TDStretch.cpp
@@ -4,8 +4,14 @@
 /// while maintaining the original pitch by using a time domain WSOLA-like 
 /// method with several performance-increasing tweaks.
 ///
-/// Note : MMX optimized functions reside in a separate, platform-specific 
-/// file, e.g. 'mmx_win.cpp' or 'mmx_gcc.cpp'
+/// Notes : MMX optimized functions reside in a separate, platform-specific 
+/// file, e.g. 'mmx_win.cpp' or 'mmx_gcc.cpp'.
+///
+/// This source file contains OpenMP optimizations that allow speeding up the
+/// corss-correlation algorithm by executing it in several threads / CPU cores 
+/// in parallel. See the following article link for more detailed discussion 
+/// about SoundTouch OpenMP optimizations:
+/// http://www.softwarecoven.com/parallel-computing-in-embedded-mobile-devices
 ///
 /// Author        : Copyright (c) Olli Parviainen
 /// Author e-mail : oparviai 'at' iki.fi