File Decoder creates temporal files and doesn't delete them

[groadabike]

When you decode a FLAC file into WAV, the method FlacDecoder.process() creates a temporal wav file.
Then, it uses soundfile to read the decoded file and return it.
However, it never deletes the temporal file, which is problematic when you need to process several files at the same time.
Is it possible to avoid the use of the temporal file? Or, perhaps would be better if we delete the temp file before the return?

signal, sample_rate = sf.read(
    str(self.__output_file), always_2d=False
)
self.__output_file.unlink()
return signal, sample_rate

[joetoddsonos]

The purpose of the FileDecoder really is just to write the data to a file. If you want to process multiple items at once and are only interested in the buffer outputs, maybe multiple instances of the OneShotDecoder would provide you what you need?