Suddividere traccia audio¶

• original_file: the original absolute path
• time_lapse: number of seconds. Could be an integer or a double
• file_pattern: The pattern to the output files

ffmpeg -i ${original_file} -f segment -segment_time ${time_lapse} -c copy ${file_pattern}

Note su file_pattern:

exported_dir="exported" 
file_pattern="${exported_dir}/%03d_${original_file##*/}" 

%03d : calcola un numero autoincrementale di tre cifre leading zero;
${original_file##*/} : file basename. Splitta original_file per '/' e considera l'ultimo token