ValueError: Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format

code

import speech_recognition as sr
r = sr.Recognizer()
with sr.AudioFile("test.wav") as source:
    audio = r.record(source)

try:
    s = r.recognize_google(audio)
    print("Text: "+s)
except Exception as e:
    print("Exception: "+str(e))

error

Traceback (most recent call last):
  File "/Users/robiulislam/anaconda3/lib/python3.6/site-packages/speech_recognition/__init__.py", line 203, in __enter__
    self.audio_reader = wave.open(self.filename_or_fileobject, "rb")
  File "/Users/robiulislam/anaconda3/lib/python3.6/wave.py", line 499, in open
    return Wave_read(f)
  File "/Users/robiulislam/anaconda3/lib/python3.6/wave.py", line 163, in __init__
    self.initfp(f)
  File "/Users/robiulislam/anaconda3/lib/python3.6/wave.py", line 143, in initfp
    self._read_fmt_chunk(chunk)
  File "/Users/robiulislam/anaconda3/lib/python3.6/wave.py", line 260, in _read_fmt_chunk
    raise Error('unknown format: %r' % (wFormatTag,))
wave.Error: unknown format: 65534

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/robiulislam/anaconda3/lib/python3.6/site-packages/speech_recognition/__init__.py", line 208, in __enter__
    self.audio_reader = aifc.open(self.filename_or_fileobject, "rb")
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 912, in open
    return Aifc_read(f)
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 351, in __init__
    self.initfp(file_object)
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 316, in initfp
    raise Error('file does not start with FORM id')
aifc.Error: file does not start with FORM id

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/robiulislam/anaconda3/lib/python3.6/site-packages/speech_recognition/__init__.py", line 234, in __enter__
    self.audio_reader = aifc.open(aiff_file, "rb")
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 912, in open
    return Aifc_read(f)
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 357, in __init__
    self.initfp(f)
  File "/Users/robiulislam/anaconda3/lib/python3.6/aifc.py", line 314, in initfp
    chunk = Chunk(file)
  File "/Users/robiulislam/anaconda3/lib/python3.6/chunk.py", line 63, in __init__
    raise EOFError
EOFError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test.py", line 21, in <module>
    with sr.AudioFile("test.wav") as source:
  File "/Users/robiulislam/anaconda3/lib/python3.6/site-packages/speech_recognition/__init__.py", line 236, in __enter__
    raise ValueError("Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format")
ValueError: Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format

operating system is Mac & python version 3