diff --git a/libraries/test_data/src/test/assets/muxerdumps/audiosampleentrybox_mp4a.dump b/libraries/test_data/src/test/assets/muxerdumps/audiosampleentrybox_mp4a.dump
new file mode 100644
index 0000000000..8745ec99eb
--- /dev/null
+++ b/libraries/test_data/src/test/assets/muxerdumps/audiosampleentrybox_mp4a.dump
@@ -0,0 +1 @@
+AudioSampleEntryBox = 0000004b6d703461000000000000000100000000000000000002001000000000bb8000000000002765736473000000000319000000041140150003000001f4000001f40005021190060102