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闇のプログラミングAdvent Calendar 2021

Day 15

なんでもナイトコアにする2

Last updated at Posted at 2021-12-08

これの続き

# 今回やること
早くした上でさらにピッチを上げる

なんかこれでやった実装でピッチ上がったから流用する

ナイトコアにする

ピッチ上げて早くする

import librosa
import soundfile as sf
import pydub
from pydub import AudioSegment

path = "motoneta.mp3"
path_pitchup = "pitchup.wav"
path_nightcore = "nightcore.mp3"

# ピッチあげる
y, sr   = librosa.load(path , mono=True)
y_slow  = librosa.effects.time_stretch(y, 0.5)
sf.write(path_pitchup, y_slow, 44100, format='wav', subtype='PCM_24')

#早くする
base_sound = AudioSegment.from_file(path_pitchup, format="wav")
base_sound = base_sound.speedup(playback_speed=2, crossfade=0)
base_sound.export(path_nightcore, format="mp3")

おしまい

聞いてみた

ゴミ

原曲

今後の展望

リミックスの加工は主に原曲の再生速度を数%速くして、テンポとピッチを上げている

wikiに書いてあるのこれだけど、これ以上なんかやることあるかな?
音的なところでなんかあったらコメントください

あとなんかyoutubeのナイトコア動画のサムネみたいな画像作ってみようかな

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