diff --git a/c_src/xav/reader.c b/c_src/xav/reader.c
index 9d8998b..7b75dc7 100644
--- a/c_src/xav/reader.c
+++ b/c_src/xav/reader.c
@@ -78,6 +78,9 @@ int reader_init(struct Reader *reader, unsigned char *path, size_t path_size, in
 #else
     av_opt_set_channel_layout(reader->swr_ctx, "in_channel_layout", reader->c->channel_layout, 0);
     av_opt_set_channel_layout(reader->swr_ctx, "out_channel_layout", reader->c->channel_layout, 0);
+    XAV_LOG_DEBUG("in_chlayout %ld", reader->c->channel_layout);
+    XAV_LOG_DEBUG("in nb_channels %d",
+                  av_get_channel_layout_nb_channels(reader->c->channel_layout));
 #endif
 
     av_opt_set_int(reader->swr_ctx, "in_sample_rate", reader->c->sample_rate, 0);
diff --git a/test/fixtures/harvard.wav b/test/fixtures/harvard.wav
new file mode 100644
index 0000000..b05ec79
Binary files /dev/null and b/test/fixtures/harvard.wav differ
diff --git a/test/reader_test.exs b/test/reader_test.exs
index 7ebc5d4..87365ec 100644
--- a/test/reader_test.exs
+++ b/test/reader_test.exs
@@ -45,7 +45,8 @@ defmodule Xav.ReaderTest do
   test "speech to text" do
     # This file has been downloaded from https://audio-samples.github.io/
     # Section: Samples from the model without biasing or priming.
-    reader = Xav.Reader.new!("./test/fixtures/melnet_sample_0.mp3", read: :audio)
+    # reader = Xav.Reader.new!("./test/fixtures/melnet_sample_0.mp3", read: :audio)
+    reader = Xav.Reader.new!("./test/fixtures/harvard.wav", read: :audio)
 
     {:ok, whisper} = Bumblebee.load_model({:hf, "openai/whisper-tiny"})
     {:ok, featurizer} = Bumblebee.load_featurizer({:hf, "openai/whisper-tiny"})