diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java b/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
index 8b50cd9ae5..6a3504240a 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
@@ -32,6 +32,8 @@ import static androidx.media3.transformer.TestUtil.FILE_WITH_SEF_SLOW_MOTION;
 import static androidx.media3.transformer.TestUtil.FILE_WITH_SUBTITLES;
 import static androidx.media3.transformer.TestUtil.addAudioDecoders;
 import static androidx.media3.transformer.TestUtil.addAudioEncoders;
+import static androidx.media3.transformer.TestUtil.createAudioEffects;
+import static androidx.media3.transformer.TestUtil.createPitchChangingAudioProcessor;
 import static androidx.media3.transformer.TestUtil.createTransformerBuilder;
 import static androidx.media3.transformer.TestUtil.getDumpFileName;
 import static androidx.media3.transformer.TestUtil.removeEncodersAndDecoders;
@@ -60,7 +62,6 @@ import androidx.media3.common.C;
 import androidx.media3.common.Effect;
 import androidx.media3.common.MediaItem;
 import androidx.media3.common.MimeTypes;
-import androidx.media3.common.audio.AudioProcessor;
 import androidx.media3.common.audio.SonicAudioProcessor;
 import androidx.media3.common.util.Util;
 import androidx.media3.effect.Presentation;
@@ -361,7 +362,7 @@ public final class MediaItemExportTest {
     EditedMediaItem editedMediaItem =
         new EditedMediaItem.Builder(MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_VIDEO))
             .setRemoveAudio(true)
-            .setEffects(new Effects(ImmutableList.of(sonicAudioProcessor), ImmutableList.of()))
+            .setEffects(createAudioEffects(sonicAudioProcessor))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(editedMediaItem));
@@ -427,10 +428,11 @@ public final class MediaItemExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
     MediaItem mediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_VIDEO);
-    ImmutableList<AudioProcessor> audioProcessors = ImmutableList.of(sonicAudioProcessor);
-    Effects effects = new Effects(audioProcessors, /* videoEffects= */ ImmutableList.of());
+
     EditedMediaItem editedMediaItem =
-        new EditedMediaItem.Builder(mediaItem).setEffects(effects).build();
+        new EditedMediaItem.Builder(mediaItem)
+            .setEffects(createAudioEffects(sonicAudioProcessor))
+            .build();
 
     transformer.start(editedMediaItem, outputPath);
     TransformerTestRunner.runLooper(transformer);
@@ -446,10 +448,10 @@ public final class MediaItemExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
     MediaItem mediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_VIDEO);
-    ImmutableList<AudioProcessor> audioProcessors = ImmutableList.of(sonicAudioProcessor);
-    Effects effects = new Effects(audioProcessors, /* videoEffects= */ ImmutableList.of());
     EditedMediaItem editedMediaItem =
-        new EditedMediaItem.Builder(mediaItem).setEffects(effects).build();
+        new EditedMediaItem.Builder(mediaItem)
+            .setEffects(createAudioEffects(sonicAudioProcessor))
+            .build();
     EditedMediaItemSequence editedMediaItemSequence =
         new EditedMediaItemSequence(ImmutableList.of(editedMediaItem));
     Composition composition =
@@ -971,10 +973,10 @@ public final class MediaItemExportTest {
                     SUPPORTED_OUTPUT_TYPE_ENCODED, /* sampleConsumerRef= */ null))
             .build();
     MediaItem mediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_VIDEO);
-    ImmutableList<AudioProcessor> audioProcessors = ImmutableList.of(new SonicAudioProcessor());
-    Effects effects = new Effects(audioProcessors, /* videoEffects= */ ImmutableList.of());
     EditedMediaItem editedMediaItem =
-        new EditedMediaItem.Builder(mediaItem).setEffects(effects).build();
+        new EditedMediaItem.Builder(mediaItem)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
+            .build();
 
     transformer.start(editedMediaItem, outputPath);
     ExportException exportException =
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/SequenceExportTest.java b/libraries/transformer/src/test/java/androidx/media3/transformer/SequenceExportTest.java
index 76aaa10b6e..a6e78a431b 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/SequenceExportTest.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/SequenceExportTest.java
@@ -24,16 +24,15 @@ import static androidx.media3.transformer.TestUtil.FILE_AUDIO_VIDEO;
 import static androidx.media3.transformer.TestUtil.FILE_AUDIO_VIDEO_INCREASING_TIMESTAMPS_15S;
 import static androidx.media3.transformer.TestUtil.addAudioDecoders;
 import static androidx.media3.transformer.TestUtil.addAudioEncoders;
+import static androidx.media3.transformer.TestUtil.createAudioEffects;
 import static androidx.media3.transformer.TestUtil.createPitchChangingAudioProcessor;
 import static androidx.media3.transformer.TestUtil.createTransformerBuilder;
 import static androidx.media3.transformer.TestUtil.getDumpFileName;
 import static androidx.media3.transformer.TestUtil.removeEncodersAndDecoders;
 
 import android.content.Context;
-import androidx.media3.common.Effect;
 import androidx.media3.common.MediaItem;
 import androidx.media3.common.MimeTypes;
-import androidx.media3.common.audio.SonicAudioProcessor;
 import androidx.media3.common.util.Util;
 import androidx.media3.effect.RgbFilter;
 import androidx.media3.test.utils.DumpFileAsserts;
@@ -109,12 +108,13 @@ public final class SequenceExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
     MediaItem mediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_VIDEO);
-    SonicAudioProcessor sonicAudioProcessor = createPitchChangingAudioProcessor(/* pitch= */ 2f);
-    Effect videoEffect = RgbFilter.createGrayscaleFilter();
-    Effects effects =
-        new Effects(ImmutableList.of(sonicAudioProcessor), ImmutableList.of(videoEffect));
     EditedMediaItem editedMediaItem =
-        new EditedMediaItem.Builder(mediaItem).setEffects(effects).build();
+        new EditedMediaItem.Builder(mediaItem)
+            .setEffects(
+                new Effects(
+                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
+                    ImmutableList.of(RgbFilter.createGrayscaleFilter())))
+            .build();
     EditedMediaItemSequence editedMediaItemSequence =
         new EditedMediaItemSequence(ImmutableList.of(editedMediaItem, editedMediaItem));
     Composition composition =
@@ -237,18 +237,12 @@ public final class SequenceExportTest {
     MediaItem mediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW_VIDEO);
     EditedMediaItem audioEditedMediaItem =
         new EditedMediaItem.Builder(mediaItem)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem noAudioEditedMediaItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(audioEditedMediaItem, noAudioEditedMediaItem));
@@ -276,17 +270,11 @@ public final class SequenceExportTest {
     EditedMediaItem noAudioEditedMediaItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem audioEditedMediaItem =
         new EditedMediaItem.Builder(mediaItem)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     Composition composition =
         new Composition.Builder(
@@ -340,18 +328,12 @@ public final class SequenceExportTest {
     EditedMediaItem silenceWithEffectsItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem silenceItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(silenceWithEffectsItem, silenceItem));
@@ -379,18 +361,12 @@ public final class SequenceExportTest {
     EditedMediaItem silenceWithEffectsItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem silenceItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(silenceItem, silenceWithEffectsItem));
@@ -418,18 +394,12 @@ public final class SequenceExportTest {
     EditedMediaItem firstItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem secondItem =
         new EditedMediaItem.Builder(mediaItem)
             .setRemoveAudio(true)
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(firstItem, secondItem));
@@ -472,11 +442,10 @@ public final class SequenceExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
     MediaItem audioOnlyMediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW);
-    SonicAudioProcessor sonicAudioProcessor = createPitchChangingAudioProcessor(/* pitch= */ 2f);
-    Effects effects =
-        new Effects(ImmutableList.of(sonicAudioProcessor), /* videoEffects= */ ImmutableList.of());
     EditedMediaItem editedMediaItem =
-        new EditedMediaItem.Builder(audioOnlyMediaItem).setEffects(effects).build();
+        new EditedMediaItem.Builder(audioOnlyMediaItem)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
+            .build();
     EditedMediaItemSequence editedMediaItemSequence =
         new EditedMediaItemSequence(ImmutableList.of(editedMediaItem, editedMediaItem));
     Composition composition =
@@ -497,23 +466,15 @@ public final class SequenceExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
     MediaItem audioOnlyMediaItem = MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW);
-    Effects highPitchEffects =
-        new Effects(
-            ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-            /* videoEffects= */ ImmutableList.of());
     EditedMediaItem highPitchMediaItem =
         new EditedMediaItem.Builder(audioOnlyMediaItem)
             .setRemoveVideo(true)
-            .setEffects(highPitchEffects)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
-    Effects lowPitchEffects =
-        new Effects(
-            ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 0.5f)),
-            /* videoEffects= */ ImmutableList.of());
     EditedMediaItem lowPitchMediaItem =
         new EditedMediaItem.Builder(audioOnlyMediaItem)
             .setRemoveVideo(true)
-            .setEffects(lowPitchEffects)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 0.5f)))
             .build();
     EditedMediaItemSequence sequence =
         new EditedMediaItemSequence(ImmutableList.of(highPitchMediaItem, lowPitchMediaItem));
@@ -558,19 +519,14 @@ public final class SequenceExportTest {
     Transformer transformer =
         createTransformerBuilder(muxerFactory, /* enableFallback= */ false).build();
 
-    Effects highPitch =
-        new Effects(
-            ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-            /* videoEffects= */ ImmutableList.of());
-
     EditedMediaItem stereo48000Audio =
         new EditedMediaItem.Builder(
                 MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW_STEREO_48000KHZ))
-            .setEffects(highPitch)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem mono44100Audio =
         new EditedMediaItem.Builder(MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW))
-            .setEffects(highPitch)
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
 
     EditedMediaItemSequence editedMediaItemSequence =
@@ -596,17 +552,11 @@ public final class SequenceExportTest {
     EditedMediaItem stereo48000AudioHighPitch =
         new EditedMediaItem.Builder(
                 MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW_STEREO_48000KHZ))
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 2f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 2f)))
             .build();
     EditedMediaItem mono44100AudioLowPitch =
         new EditedMediaItem.Builder(MediaItem.fromUri(ASSET_URI_PREFIX + FILE_AUDIO_RAW))
-            .setEffects(
-                new Effects(
-                    ImmutableList.of(createPitchChangingAudioProcessor(/* pitch= */ 0.5f)),
-                    /* videoEffects= */ ImmutableList.of()))
+            .setEffects(createAudioEffects(createPitchChangingAudioProcessor(/* pitch= */ 0.5f)))
             .build();
     EditedMediaItemSequence editedMediaItemSequence =
         new EditedMediaItemSequence(
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java b/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
index 117511e0ff..fa0534fd53 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
@@ -22,6 +22,7 @@ import androidx.annotation.Nullable;
 import androidx.media3.common.C;
 import androidx.media3.common.Format;
 import androidx.media3.common.MimeTypes;
+import androidx.media3.common.audio.AudioProcessor;
 import androidx.media3.common.audio.SonicAudioProcessor;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
@@ -144,6 +145,11 @@ public final class TestUtil {
             new DefaultEncoderFactory.Builder(context).setEnableFallback(enableFallback).build());
   }
 
+  public static Effects createAudioEffects(AudioProcessor... audioProcessors) {
+    return new Effects(
+        ImmutableList.copyOf(audioProcessors), /* videoEffects= */ ImmutableList.of());
+  }
+
   public static SonicAudioProcessor createPitchChangingAudioProcessor(float pitch) {
     SonicAudioProcessor sonicAudioProcessor = new SonicAudioProcessor();
     sonicAudioProcessor.setPitch(pitch);