I am running into an issue when trying to extract mono audio from a stereo file using pydub.
Here is the code:
import wave
import audioop
from pydub import AudioSegment
def cantDeleteLockedFile():
audiofile = "/Volumes/test/stereotest.wav"
audiostrip = AudioFileClip(audiofile)
if audiostrip.nchannels > 1:
with open(audiofile, "rb") as oaudiofile:
mono_audios = AudioSegment.from_file(oaudiofile, format="wav")
# List of AudioSegments, mono files, which can be accessed via [0] and [1]
mono_audios = mono_audios.split_to_mono()
audioChannelOne = str(audiofile.rsplit(".", 1)[0]) + "a.wav"
# This line is locking the stereo file
mono_left = mono_audios[0].export(audioChannelOne, format="wav")
# This extracts the mono left track from the stereo track
# On the same location a file will be created, in this example:
# "/Volumes/test/stereotesta.wav"
# This should unlock the file, but doesnt
mono_left.close()
# When trying to delete the file here, it will fail
# without exception raised
os.remove(audiofile)
if os.path.exists(audiofile):
return True
else:
return False
return False
After executing this code, which in my case is embedded into an API microservice system, that does not exit the code. Then the stereo audio file will be locked, for as long as that micro service is running. The file will not be deleted and function return value will be "False". If you later manually on the filesystem navigate to that file and try to delete it manually, it will also fail. It will first delete it, but then it will magically pop back up.
I am aware of this issue being discussed on other boards before. However the proposed solution does not work.
ref: https://github.com/jiaaro/pydub/issues/305
Either I am missing something completely. However, perhaps there is a workaround to forcibly unlock a file, so it can be deleted? I did not find a reference online. Basically I know, that pydub is locking the resource, I can't get it to unlock the wav file behind the Audio Segment.
Happy to read your feedback and suggestions.
Thank you!
