如何使用numpy數組創建pydub AudioSegment？

Question

我有蟒蛇下面的代碼

from scipy.io.wavfile import read 
rate, signal = read('./data/input.wav') 
# get only one channel 
signal = signal[:,0] 
# do a bunch of processing here 

現在我想用「信號」和「速度」

audio_segment = pydub.AudioSegment() 

那麼，如何可以創建這個音頻段，之後創建一個pydub段 我怎樣才能找回我的信號作爲一個numpy數組？

Answer 1

我能在我的機器上運行此代碼：

from scipy.io.wavfile import read 
from pydub import AudioSegment 

rate, signal = read("./test/data/test1.wav") 
channel1 = signal[:,0] 

audio_segment = pydub.AudioSegment(
    channel1.tobytes(), 
    frame_rate=rate, 
    sample_width=channel1.dtype.itemsize, 
    channels=1 
) 

# test that it sounds right (requires ffplay, or pyaudio): 
from pydub.playback import play 
play(audio_segment)