diff --git a/main.py b/main.py
index 7187afc..36d74ea 100644
--- a/main.py
+++ b/main.py
@@ -13,7 +13,7 @@ def main():
     offset = timing.offset
     print(beatmap.audio_filename)
 
-    timings, amplitudes = sound_process.process_song(beatmap.audio_filename, bpm, offset0=offset, n_iter_2=-1)
+    timings, amplitudes = sound_process.process_song(beatmap.audio_filename, bpm, offset=offset, n_iter_2=-1)
     # NOTE : remove n_iter_2 to map the whole music
 
     beatmap._hit_objects = place.greedy(bpm, offset, timings, amplitudes)
diff --git a/sound_process.py b/sound_process.py
index 0ea12c5..4958373 100755
--- a/sound_process.py
+++ b/sound_process.py
@@ -103,8 +103,7 @@ def get_freq(song_name, offset, step, songlen, data, display=False):
     times = []
     current_time = offset
     k = 0
-
-    subprocess.run(["ffmpeg", "-ss", str(offset), "-t", str(offset+songlen), "-i", song_name, "crop.wav"]) 
+    subprocess.run(["ffmpeg", "-ss", str(offset), "-t", str(offset+songlen),"-i",song_name, "crop.wav"]) 
 
     sample_rate, global_data = wavfile.read("crop.wav")
     #blit = int(len(global_data) / len(data))