在Python中混合/叠加wav音频文件
我一直在寻找一种仅使用wave库将两个WAV音频文件叠加/混合在一起的解决方案 我找到了以下解决方案: 其中一个答案提供了以下代码:在Python中混合/叠加wav音频文件,python,audio,wav,wave,mixing,Python,Audio,Wav,Wave,Mixing,我一直在寻找一种仅使用wave库将两个WAV音频文件叠加/混合在一起的解决方案 我找到了以下解决方案: 其中一个答案提供了以下代码: import wave w1 = wave.open("/path/to/wav/1") w2 = wave.open("/path/to/wav/2") #get samples formatted as a string. samples1 = w1.readframes(w1.getnframes()) samples2 = w2.readframes(
import wave
w1 = wave.open("/path/to/wav/1")
w2 = wave.open("/path/to/wav/2")
#get samples formatted as a string.
samples1 = w1.readframes(w1.getnframes())
samples2 = w2.readframes(w2.getnframes())
#takes every 2 bytes and groups them together as 1 sample. ("123456" -> ["12", "34", "56"])
samples1 = [samples1[i:i+2] for i in xrange(0, len(samples1), 2)]
samples2 = [samples2[i:i+2] for i in xrange(0, len(samples2), 2)]
#convert samples from strings to ints
def bin_to_int(bin):
as_int = 0
for char in bin[::-1]: #iterate over each char in reverse (because little-endian)
#get the integer value of char and assign to the lowest byte of as_int, shifting the rest up
as_int <<= 8
as_int += ord(char)
return as_int
samples1 = [bin_to_int(s) for s in samples1] #['\x04\x08'] -> [0x0804]
samples2 = [bin_to_int(s) for s in samples2]
#average the samples:
samples_avg = [(s1+s2)/2 for (s1, s2) in zip(samples1, samples2)]
我还尝试了一百万种其他的解决方案,这些方案我都不好意思发布,但都失败了
有人能帮忙完成这段代码吗?我认为这将是一个非常有用的代码,因为它只依赖于wave库,可以在虚拟环境中使用
我对Python相当陌生,对音频处理也完全陌生,所以对于任何愚蠢的问题和错误,我深表歉意
只是想澄清我所说的混合/溢出是什么意思。如果我有两个音频文件,每个文件的长度为4秒,我想将它们混合到一个长度为4秒的音频文件中,同时播放两个音频文件 因此,经过一点尝试,在@ponkadodle的帮助下,我发现了一个错误。我用quicktime和在线wav转换器在同一台计算机上录制了两段录音,这两段录音都有效。如果我使用互联网上的wav文件,最终的样本听起来真的很糟糕,我不知道这是否是由于频率等原因 这是最后的代码
import wave
import array
w1 = wave.open("path/to/file/audiofile1.wav")
w2 = wave.open("path/to/file/audiofile2.wav")
#get samples formatted as a string.
samples1 = w1.readframes(w1.getnframes())
samples2 = w2.readframes(w2.getnframes())
#takes every 2 bytes and groups them together as 1 sample. ("123456" -> ["12", "34", "56"])
samples1 = [samples1[i:i+2] for i in range(0, len(samples1), 2)]
samples2 = [samples2[i:i+2] for i in range(0, len(samples2), 2)]
#convert samples from strings to ints
def bin_to_int(bin):
as_int = 0
for char in bin[::-1]: #iterate over each char in reverse (because little-endian)
#get the integer value of char and assign to the lowest byte of as_int, shifting the rest up
as_int <<= 8
as_int += char
return as_int
samples1 = [bin_to_int(s) for s in samples1] #['\x04\x08'] -> [0x0804]
samples2 = [bin_to_int(s) for s in samples2]
#average the samples:
samples_avg = [(s1+s2) for (s1, s2) in zip(samples1, samples2)]
samples_array = array.array('i')
samples_array.fromlist(samples_avg)
wave_out = wave.open ("out.wav", "wb")
wave_out.setnchannels(1)
wave_out.setsampwidth(2)
wave_out.setframerate(w1.getframerate()*4)
wave_out.writeframes(samples_array)
samples_avg = [ chr(s) for s in samples_avg]
samples_avg = [ bin(s) + "'" for s in samples_avg]
import wave
import array
w1 = wave.open("path/to/file/audiofile1.wav")
w2 = wave.open("path/to/file/audiofile2.wav")
#get samples formatted as a string.
samples1 = w1.readframes(w1.getnframes())
samples2 = w2.readframes(w2.getnframes())
#takes every 2 bytes and groups them together as 1 sample. ("123456" -> ["12", "34", "56"])
samples1 = [samples1[i:i+2] for i in range(0, len(samples1), 2)]
samples2 = [samples2[i:i+2] for i in range(0, len(samples2), 2)]
#convert samples from strings to ints
def bin_to_int(bin):
as_int = 0
for char in bin[::-1]: #iterate over each char in reverse (because little-endian)
#get the integer value of char and assign to the lowest byte of as_int, shifting the rest up
as_int <<= 8
as_int += char
return as_int
samples1 = [bin_to_int(s) for s in samples1] #['\x04\x08'] -> [0x0804]
samples2 = [bin_to_int(s) for s in samples2]
#average the samples:
samples_avg = [(s1+s2) for (s1, s2) in zip(samples1, samples2)]
samples_array = array.array('i')
samples_array.fromlist(samples_avg)
wave_out = wave.open ("out.wav", "wb")
wave_out.setnchannels(1)
wave_out.setsampwidth(2)
wave_out.setframerate(w1.getframerate()*4)
wave_out.writeframes(samples_array)
wave_out.setframerate(w1.getframerate()*4)