diff --git a/audio/schueler_step_1.mp3 b/audio/schueler_step_1.mp3
deleted file mode 100644
index 24b841d..0000000
Binary files a/audio/schueler_step_1.mp3 and /dev/null differ
diff --git a/audio/schueler_step_1_english.mp3 b/audio/schueler_step_1_english.mp3
deleted file mode 100644
index 568e14b..0000000
Binary files a/audio/schueler_step_1_english.mp3 and /dev/null differ
diff --git a/audio/schueler_step_2.mp3 b/audio/schueler_step_2.mp3
deleted file mode 100644
index 93ac3d8..0000000
Binary files a/audio/schueler_step_2.mp3 and /dev/null differ
diff --git a/audio/schueler_step_2_english.mp3 b/audio/schueler_step_2_english.mp3
deleted file mode 100644
index ea28eee..0000000
Binary files a/audio/schueler_step_2_english.mp3 and /dev/null differ
diff --git a/audio/schueler_step_3.mp3 b/audio/schueler_step_3.mp3
deleted file mode 100644
index 2d67d92..0000000
Binary files a/audio/schueler_step_3.mp3 and /dev/null differ
diff --git a/audio/schueler_step_3_english.mp3 b/audio/schueler_step_3_english.mp3
deleted file mode 100644
index 8b973e6..0000000
Binary files a/audio/schueler_step_3_english.mp3 and /dev/null differ
diff --git a/audio/schueler_step_4.mp3 b/audio/schueler_step_4.mp3
deleted file mode 100644
index 39ca21c..0000000
Binary files a/audio/schueler_step_4.mp3 and /dev/null differ
diff --git a/audio/schueler_step_4_english.mp3 b/audio/schueler_step_4_english.mp3
deleted file mode 100644
index aebe613..0000000
Binary files a/audio/schueler_step_4_english.mp3 and /dev/null differ