5 files changed, 63 insertions, 0 deletions

diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index 26c0051b58..dbd0baa18a 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -13114,3 +13114,45 @@
     *: "Select directories to scan"
   </voice>
 </phrase>
+<phrase>
+  id: LANG_FILTER_ROLL_OFF
+  desc: in sound settings
+  user: core
+  <source>
+    *: "DAC's filter roll-off"
+  </source>
+  <dest>
+    *: "DAC's filter roll-off"
+  </dest>
+  <voice>
+    *: "DAC's filter roll-off"
+  </voice>
+</phrase>
+<phrase>
+  id: LANG_FILTER_SHARP
+  desc: in sound settings
+  user: core
+  <source>
+    *: "Sharp"
+  </source>
+  <dest>
+    *: "Sharp"
+  </dest>
+  <voice>
+    *: "Sharp"
+  </voice>
+</phrase>
+<phrase>
+  id: LANG_FILTER_SLOW
+  desc: in sound settings
+  user: core
+  <source>
+    *: "Slow"
+  </source>
+  <dest>
+    *: "Slow"
+  </dest>
+  <voice>
+    *: "Slow"
+  </voice>
+</phrase>
diff --git a/apps/menus/sound_menu.c b/apps/menus/sound_menu.c
index d24a9cd695..fd192cb661 100644
--- a/apps/menus/sound_menu.c
+++ b/apps/menus/sound_menu.c
@@ -88,6 +88,10 @@ MENUITEM_SETTING(stereo_width, &global_settings.stereo_width,
 MENUITEM_SETTING(depth_3d, &global_settings.depth_3d, NULL);
 #endif
 
+#ifdef AUDIOHW_HAVE_FILTER_ROLL_OFF
+MENUITEM_SETTING(roll_off, &global_settings.roll_off, NULL);
+#endif
+
 #if CONFIG_CODEC == SWCODEC
     /* Crossfeed Submenu */
     MENUITEM_SETTING(crossfeed, &global_settings.crossfeed, lowlatency_callback);
@@ -183,6 +187,9 @@ MAKE_MENU(sound_settings, ID2P(LANG_SOUND_SETTINGS), NULL, Icon_Audio,
 #ifdef AUDIOHW_HAVE_DEPTH_3D
           ,&depth_3d
 #endif
+#ifdef AUDIOHW_HAVE_FILTER_ROLL_OFF
+          ,&roll_off
+#endif
 #if CONFIG_CODEC == SWCODEC
           ,&crossfeed_menu, &equalizer_menu, &dithering_enabled
 #ifdef HAVE_PITCHCONTROL
diff --git a/apps/settings.c b/apps/settings.c
index b04b91cc66..adc53cd14b 100644
--- a/apps/settings.c
+++ b/apps/settings.c
@@ -753,6 +753,9 @@ void sound_settings_apply(void)
 #ifdef AUDIOHW_HAVE_DEPTH_3D
     sound_set(SOUND_DEPTH_3D, global_settings.depth_3d);
 #endif
+#ifdef AUDIOHW_HAVE_FILTER_ROLL_OFF
+    sound_set(SOUND_FILTER_ROLL_OFF, global_settings.roll_off);
+#endif
 #ifdef AUDIOHW_HAVE_EQ
     int b;
 
diff --git a/apps/settings.h b/apps/settings.h
index 53ad70b24f..1aec931798 100644
--- a/apps/settings.h
+++ b/apps/settings.h
@@ -790,6 +790,10 @@ struct user_settings
     int depth_3d;
 #endif
 
+#ifdef AUDIOHW_HAVE_FILTER_ROLL_OFF
+    int roll_off;
+#endif
+
 #ifdef AUDIOHW_HAVE_EQ
     /** Hardware EQ tone controls **/
     struct hw_eq_band
diff --git a/apps/settings_list.c b/apps/settings_list.c
index ec34a96dc5..c1b40a64b6 100644
--- a/apps/settings_list.c
+++ b/apps/settings_list.c
@@ -778,6 +778,13 @@ const struct settings_list settings[] = {
     SOUND_SETTING(0,depth_3d, LANG_DEPTH_3D, "3-d enhancement",
                   SOUND_DEPTH_3D),
 #endif
+
+#ifdef AUDIOHW_HAVE_FILTER_ROLL_OFF
+    CHOICE_SETTING(F_SOUNDSETTING, roll_off, LANG_FILTER_ROLL_OFF, 0,
+                   "roll_off", "sharp,slow", sound_set_filter_roll_off,
+                   2, ID2P(LANG_FILTER_SHARP), ID2P(LANG_FILTER_SLOW)),
+#endif
+
     /* playback */
     OFFON_SETTING(0, playlist_shuffle, LANG_SHUFFLE, false, "shuffle", NULL),
     SYSTEM_SETTING(NVRAM(4), resume_index, -1),