diff --git a/src/main/java/com/annimon/ffmpegbot/commands/ffmpeg/FFmpegCommandBuilder.java b/src/main/java/com/annimon/ffmpegbot/commands/ffmpeg/FFmpegCommandBuilder.java
index 7ec4a43..2a5446e 100644
--- a/src/main/java/com/annimon/ffmpegbot/commands/ffmpeg/FFmpegCommandBuilder.java
+++ b/src/main/java/com/annimon/ffmpegbot/commands/ffmpeg/FFmpegCommandBuilder.java
@@ -51,6 +51,8 @@ public class FFmpegCommandBuilder implements Visitor<MediaSession> {
         audioFilters.add(switch (p.getValue()) {
             case AudioEffect.ECHO -> "aecho=0.8:0.9:40|50|70:0.4|0.3|0.2";
             case AudioEffect.ECHO_2 -> "aecho=0.8:0.9:500|1000:0.2|0.1";
+            case AudioEffect.NOISE_REDUCTION_5 -> "afftdn=nr=5";
+            case AudioEffect.NOISE_REDUCTION_12 -> "afftdn=nr=12";
             case AudioEffect.PULSATOR -> "apulsator=mode=sine:hz=0.5";
             case AudioEffect.VIBRATO -> "vibrato=f=4";
             default /* AudioEffect.ROBOT */ -> "afftfilt=\"" +
diff --git a/src/main/java/com/annimon/ffmpegbot/parameters/AudioEffect.java b/src/main/java/com/annimon/ffmpegbot/parameters/AudioEffect.java
index 9181926..51e7890 100644
--- a/src/main/java/com/annimon/ffmpegbot/parameters/AudioEffect.java
+++ b/src/main/java/com/annimon/ffmpegbot/parameters/AudioEffect.java
@@ -8,11 +8,13 @@ public class AudioEffect extends StringParameter {
     public static final String ROBOT = "Robot";
     public static final String ECHO = "Echo";
     public static final String ECHO_2 = "Echo 2";
+    public static final String NOISE_REDUCTION_5 = "Noise reduction 5dB";
+    public static final String NOISE_REDUCTION_12 = "Noise reduction 12dB";
     public static final String PULSATOR = "Pulsator";
     public static final String VIBRATO = "Vibrato";
 
     private static final List<String> VALUES = List.of(
-            "", ROBOT, ECHO, ECHO_2, PULSATOR, VIBRATO
+            "", ROBOT, ECHO, ECHO_2, NOISE_REDUCTION_5, NOISE_REDUCTION_12, PULSATOR, VIBRATO
     );
 
     public AudioEffect() {