diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index fa227548d0..07a96bf755 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -13,6 +13,8 @@
 *   Transformer:
     *   Work around a decoder bug where the number of audio channels was capped
         at stereo when handling PCM input.
+    *   When selecting tracks in `ExoPlayerAssetLoader`, ignore audio channel
+        count constraints as they only apply for playback.
 *   Track Selection:
 *   Extractors:
 *   Audio:
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/ExoPlayerAssetLoader.java b/libraries/transformer/src/main/java/androidx/media3/transformer/ExoPlayerAssetLoader.java
index dca4c39015..ee785a42a3 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/ExoPlayerAssetLoader.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/ExoPlayerAssetLoader.java
@@ -160,6 +160,7 @@ public final class ExoPlayerAssetLoader implements AssetLoader {
     trackSelector.setParameters(
         new DefaultTrackSelector.Parameters.Builder(context)
             .setForceHighestSupportedBitrate(true)
+            .setConstrainAudioChannelCountToDeviceCapabilities(false)
             .build());
     // Arbitrarily decrease buffers for playback so that samples start being sent earlier to the
     // exporters (rebuffers are less problematic for the export use case).