[英]Add multiple Layers to audio recording with PyAudio
我一直在嘗試使用pyaudio
進行音頻記錄和播放。
我能夠記錄文件,但是我需要能夠在文件之上添加圖層。 我正在嘗試錄制10秒的文件,然后開始播放。
在播放的同時,我想繼續錄制其他10秒的圖層,並將其添加到先前的錄音之上。
有沒有辦法用Python做到這一點?
import pyaudio
import wave
CHUNK = 2
FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
RECORD_SECONDS = 3
WAVE_OUTPUT_FILENAME = "output.wav"
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
frames.append(data)
print(int(RATE / CHUNK * RECORD_SECONDS))
print("* done recording")
stream.stop_stream()
stream.close()
p.terminate()
wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()
我找到了一個名為“ PyDub”的模塊,該模塊可以輕松實現這一目的。
from pydub import AudioSegment
track1 = AudioSegment.from_file(track1wav)
track2 = AudioSegment.from_file(track2wav)
combined = track1.overlay(track2)
print ("overlaying recording")
combined.export(track1wav, format='wav')
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