diff --git a/src/client.cpp b/src/client.cpp
index 792cd881..afa11b11 100755
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -330,7 +330,8 @@ void CClient::Init()
     iStereoBlockSizeSam = 2 * iMonoBlockSizeSam;
 
 
-// TEST
+// TEST (we assume here that "iMonoBlockSizeSam" is divisible by
+// "SYSTEM_FRAME_SIZE_SAMPLES")
 // calculate actual frame size factor
 iSndCrdFrameSizeFactor = iMonoBlockSizeSam / SYSTEM_FRAME_SIZE_SAMPLES;