RecordingPrefs.cpp does not depend on AudioIO.cpp...

... freeing it from dependency cycles, but no others

src/prefs/DevicePrefs.cpp

@@ -25,6 +25,8 @@ other settings.
 #include "../Audacity.h"
 #include "DevicePrefs.h"
 
+#include "RecordingPrefs.h"
+
 #include <wx/defs.h>
 
 #include <wx/choice.h>

src/prefs/RecordingPrefs.cpp

@@ -27,7 +27,6 @@
 #include <wx/textctrl.h>
 #include <algorithm>
 
-#include "../AudioIO.h"
 #include "../prefs/GUISettings.h"
 #include "../Prefs.h"
 #include "../ShuttleGui.h"

src/prefs/RecordingPrefs.h

@@ -21,6 +21,15 @@ class ShuttleGui;
 
 #define RECORDING_PREFS_PLUGIN_SYMBOL ComponentInterfaceSymbol{ XO("Recording") }
 
+#define DEFAULT_LATENCY_DURATION 100.0
+#define DEFAULT_LATENCY_CORRECTION -130.0
+
+#define AUDIO_PRE_ROLL_KEY (wxT("/AudioIO/PreRoll"))
+#define DEFAULT_PRE_ROLL_SECONDS 5.0
+
+#define AUDIO_ROLL_CROSSFADE_KEY (wxT("/AudioIO/Crossfade"))
+#define DEFAULT_ROLL_CROSSFADE_MS 10.0
+
 class RecordingPrefs final : public PrefsPanel
 {
  public: