Getting wav not supported error

[abilash44]

I am getting this error
"This install of SoX cannot process .wav files."

I am using the code in AWS lambda and the script looks like this

def split_channel(temp_file, channel_num):
result_temp_file = '/tmp/{}.wav'.format(uuid.uuid4())
tfm = sox.Transformer()
remix_dictionary = { 1: [channel_num]}
tfm.remix(remix_dictionary)
tfm.build(temp_file, result_temp_file)
return result_temp_file

Is there some step to make Sox work for .wav files ?

[abilash44]

Did not read the requirements.