diff --git a/fft_analysis/tests/data/sample_audio.wav b/fft_analysis/tests/data/sample_audio.wav
new file mode 100644
index 0000000..8fb8e7b
--- /dev/null
+++ b/fft_analysis/tests/data/sample_audio.wav
@@ -0,0 +1 @@
+RIFF$\x00\x00\x00WAVEfmt \x10\x00\x00\x00\x01\x00\x01\x00D\xac\x00\x00\x88X\x01\x00\x02\x00\x10\x00data\x00\x00\x00\x00
\ No newline at end of file