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Алексей Воронов
Asked:2020-02-18 20:55:43 +0000 UTC2020-02-18 20:55:43 +0000 UTC

读取文件夹中的所有 WAV 文件

  • 772

如何实现顺序读取位于同一文件夹中的所有 WAV 文件？

有必要对文件夹中的每个 WAV 文件进行频谱分析。该函数用于读取文件wav.read。此外，数据存储为数组numpy并进行进一步处理。

python

2 个回答

  1. Best Answer

    如果我正确理解问题：

    import os
import glob
from scipy.io import wavfile as wav

my_dir = r'C:\Windows\Media'

def process_wavs(files):
    for f in files:
        rate, data = wav.read(f)
        # process data here
        print('Rate:\t{}\tShape:\t{}\t["{}"]'.format(rate, data.shape, f))

files = glob.glob(os.path.join(my_dir, '*.wav'))
process_wavs(files)

    结论：

    Rate:   44100   Shape:  (54080, 2)      ["C:\Windows\Media\chimes.wav"]
Rate:   44100   Shape:  (28480, 2)      ["C:\Windows\Media\chord.wav"]
Rate:   44100   Shape:  (17504, 2)      ["C:\Windows\Media\ding.wav"]
Rate:   44100   Shape:  (29504, 2)      ["C:\Windows\Media\ir_begin.wav"]
Rate:   44100   Shape:  (31552, 2)      ["C:\Windows\Media\ir_end.wav"]
Rate:   44100   Shape:  (44672, 2)      ["C:\Windows\Media\ir_inter.wav"]
Rate:   22050   Shape:  (13591, 2)      ["C:\Windows\Media\kaka.Wav"]
Rate:   44100   Shape:  (57088, 2)      ["C:\Windows\Media\notify.wav"]
Rate:   44100   Shape:  (27936, 2)      ["C:\Windows\Media\recycle.wav"]
Rate:   44100   Shape:  (22048, 2)      ["C:\Windows\Media\ringout.wav"]
Rate:   44100   Shape:  (38400, 2)      ["C:\Windows\Media\Speech Disambiguation.wav"]
Rate:   44100   Shape:  (17792, 2)      ["C:\Windows\Media\Speech Misrecognition.wav"]
Rate:   44100   Shape:  (47104, 2)      ["C:\Windows\Media\Speech Off.wav"]
Rate:   44100   Shape:  (36864, 2)      ["C:\Windows\Media\Speech On.wav"]
Rate:   44100   Shape:  (32192, 2)      ["C:\Windows\Media\Speech Sleep.wav"]
Rate:   44100   Shape:  (71296, 2)      ["C:\Windows\Media\tada.wav"]
Rate:   44100   Shape:  (44544, 2)      ["C:\Windows\Media\Windows Balloon.wav"]
Rate:   44100   Shape:  (53696, 2)      ["C:\Windows\Media\Windows Battery Critical.wav"]
Rate:   44100   Shape:  (44864, 2)      ["C:\Windows\Media\Windows Battery Low.wav"]
Rate:   44100   Shape:  (39808, 2)      ["C:\Windows\Media\Windows Critical Stop.wav"]
Rate:   44100   Shape:  (18144, 2)      ["C:\Windows\Media\Windows Default.wav"]
Rate:   44100   Shape:  (47936, 2)      ["C:\Windows\Media\Windows Ding.wav"]
Rate:   44100   Shape:  (42880, 2)      ["C:\Windows\Media\Windows Error.wav"]
Rate:   44100   Shape:  (60060, 2)      ["C:\Windows\Media\Windows Exclamation.wav"]
Rate:   44100   Shape:  (4960, 2)       ["C:\Windows\Media\Windows Feed Discovered.wav"]
Rate:   44100   Shape:  (22144, 2)      ["C:\Windows\Media\Windows Hardware Fail.wav"]
Rate:   44100   Shape:  (25184, 2)      ["C:\Windows\Media\Windows Hardware Insert.wav"]
Rate:   44100   Shape:  (23552, 2)      ["C:\Windows\Media\Windows Hardware Remove.wav"]
Rate:   44100   Shape:  (5816, 2)       ["C:\Windows\Media\Windows Information Bar.wav"]
Rate:   44100   Shape:  (47586, 2)      ["C:\Windows\Media\Windows Logoff Sound.wav"]
Rate:   44100   Shape:  (39342, 2)      ["C:\Windows\Media\Windows Logon Sound.wav"]
Rate:   44100   Shape:  (6520, 2)       ["C:\Windows\Media\Windows Menu Command.wav"]
Rate:   44100   Shape:  (32384, 2)      ["C:\Windows\Media\Windows Minimize.wav"]
Rate:   44100   Shape:  (2824, 2)       ["C:\Windows\Media\Windows Navigation Start.wav"]
Rate:   44100   Shape:  (56832, 2)      ["C:\Windows\Media\Windows Notify.wav"]
Rate:   44100   Shape:  (21376, 2)      ["C:\Windows\Media\Windows Pop-up Blocked.wav"]
Rate:   44100   Shape:  (88448, 2)      ["C:\Windows\Media\Windows Print complete.wav"]
Rate:   44100   Shape:  (23840, 2)      ["C:\Windows\Media\Windows Recycle.wav"]
Rate:   44100   Shape:  (38720, 2)      ["C:\Windows\Media\Windows Restore.wav"]
Rate:   44100   Shape:  (49728, 2)      ["C:\Windows\Media\Windows Ringin.wav"]
Rate:   22050   Shape:  (11013,)        ["C:\Windows\Media\Windows Ringout.wav"]
Rate:   44100   Shape:  (42350, 2)      ["C:\Windows\Media\Windows Shutdown.wav"]
Rate:   44100   Shape:  (9584, 2)       ["C:\Windows\Media\Windows Startup.wav"]
Rate:   44100   Shape:  (20352, 2)      ["C:\Windows\Media\Windows User Account Control.wav"]
    • 1

  2. 获取目录wav中的文件列表yourDIR并逐个元素打印：

    import os

yourDIR = 'C:/WAVdir/'
files = os.listdir(yourDIR)
filelist = filter(lambda x: x.endswith('.wav'),files)

for i in filelist:
    print i

    如有必要，该代码可以与所示过滤器以外的任何其他过滤器一起使用.wav。

    • 1

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