WAVE: RIFF header not found

[Mte90]

We got this error with the italian dataset: soxi FAIL formats: can't open input file '/home/ubuntu/datasets/common_voice/cv-it/clips/common_voice_it_17552746.wav': WAVE: RIFF header not found

[eziolotta]

There are other files that give the same error.

If .mp3 of CommonVoice is resampled with sox with parameter -t <file_type>, soxi no longer gives this error.
I tried resampling from command line.
sox −t mp3 /home/ubuntu/datasets/common_voice/cv-it/clips/common_voice_it_17552761.mp3 -r 16000 -c 1 -b 16 /home/ubuntu/datasets/common_voice/cv-it/clips/common_voice_it_17552761.wav

I don't understand why python code doesn't work, it's like it doesn't see the -t parameter, and than i have error 'RIFF header not found' whit soxi.
subprocess.check_call (['sox', '- t', 'mp3', mp3_filename, '-r', '16000', '-c', '1', '-b', '16', wav_filename], stderr = subprocess.STDOUT)

UPDATE: on file common_voice_it_17552746.mp3 command line resampling does not work either. Maybe this file have some problem (?)