diff --git a/src/base/URecord.pas b/src/base/URecord.pas
index db71a9900..ea54f6b06 100644
--- a/src/base/URecord.pas
+++ b/src/base/URecord.pas
@@ -378,9 +378,9 @@ procedure TCaptureBuffer.AnalyzeBuffer;
   LockAnalysisBuffer();
   try
 
-    // find maximum volume of first 1024 samples
+    // find maximum volume across the analysis buffer
     MaxVolume := 0;
-    for SampleIndex := 0 to 1023 do
+    for SampleIndex := 0 to AnalysisBufferSize - 1 do
     begin
       Volume := Abs(AnalysisBuffer[SampleIndex]) / -Low(Smallint);
       if Volume > MaxVolume then