diff --git a/_prepro_aistpp.py b/_prepro_aistpp.py
index 1177eb48..49b10285 100644
--- a/_prepro_aistpp.py
+++ b/_prepro_aistpp.py
@@ -142,7 +142,7 @@ def extract_acoustic_feature(audio, sr):
     audio_harmonic, audio_percussive = extractor.get_hpss(audio)
     # harmonic_melspe_db = get_harmonic_melspe_db(audio_harmonic, sr)
     # percussive_melspe_db = get_percussive_melspe_db(audio_percussive, sr)
-    chroma_cqt = extractor.get_chroma_cqt(audio_harmonic, sr)
+    chroma_cqt = extractor.get_chroma_cqt(audio_harmonic, sr, octave=7 if sr==15360*2 else 5)
     # chroma_stft = extractor.get_chroma_stft(audio_harmonic, sr)
 
     onset_env = extractor.get_onset_strength(audio_percussive, sr)
diff --git a/_prepro_aistpp_music.py b/_prepro_aistpp_music.py
index bc0d8c3f..dc8b5b2c 100644
--- a/_prepro_aistpp_music.py
+++ b/_prepro_aistpp_music.py
@@ -25,10 +25,9 @@
 store_dir = args.store_dir
 extractor = FeatureExtractor()
 
-if not os.path.exists(args.train_dir):
-    os.mkdir(args.train_dir)
-if not os.path.exists(args.test_dir):
-    os.mkdir(args.test_dir)
+if not os.path.exists(args.store_dir):
+    os.mkdir(args.store_dir)
+
 
 
 def make_music_dance_set(video_dir):
@@ -79,7 +78,7 @@ def extract_acoustic_feature(audio, sr):
     audio_harmonic, audio_percussive = extractor.get_hpss(audio)
     # harmonic_melspe_db = get_harmonic_melspe_db(audio_harmonic, sr)
     # percussive_melspe_db = get_percussive_melspe_db(audio_percussive, sr)
-    chroma_cqt = extractor.get_chroma_cqt(audio_harmonic, sr)
+    chroma_cqt = extractor.get_chroma_cqt(audio_harmonic, sr,  octave=7 if sr==15360*2 else 5)
     # chroma_stft = extractor.get_chroma_stft(audio_harmonic, sr)
 
     onset_env = extractor.get_onset_strength(audio_percussive, sr)
diff --git a/extractor.py b/extractor.py
index f3b312bd..12e8b6b7 100644
--- a/extractor.py
+++ b/extractor.py
@@ -53,8 +53,8 @@ def get_percussive_melspe_db(audio_percussive, sr):
         return percussive_melspe_db
 
     @staticmethod
-    def get_chroma_cqt(audio_harmonic, sr):
-        chroma_cqt_harmonic = librosa.feature.chroma_cqt(y=audio_harmonic, sr=sr, n_octaves=5)
+    def get_chroma_cqt(audio_harmonic, sr, octave=7):
+        chroma_cqt_harmonic = librosa.feature.chroma_cqt(y=audio_harmonic, sr=sr, n_octaves=octave)
         print(f'{chroma_cqt_harmonic.shape} -> chroma_cqt_harmonic')
         return chroma_cqt_harmonic
 
diff --git a/prepare_aistpp_data.sh b/prepare_aistpp_data.sh
index 074e8218..16e0c451 100644
--- a/prepare_aistpp_data.sh
+++ b/prepare_aistpp_data.sh
@@ -3,7 +3,7 @@ python _prepro_aistpp.py
 python _prepro_aistpp_music.py
 
 # for actor critic
-python _prepro_aistpp_music.py --store_dir data/aistpp_music_feat --sampling_rate 15360*2
+# python _prepro_aistpp_music.py --store_dir data/aistpp_music_feat --sampling_rate 30720
 
 # remove bad dances; the list is from AIST++ project page
 for ff in `cat ignore_list.txt`