def validate_input_file_list(input_filepath_list):
if not isinstance(input_filepath_list, list):<EOL><INDENT>raise TypeError("<STR_LIT>")<EOL><DEDENT>elif len(input_filepath_list) < <NUM_LIT:2>:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>for input_filepath in input_filepath_list:<EOL><INDENT>validate_input_file(input_filepath)<EOL><DEDENT>
Input file list validation function. Checks that object is a list and
    contains valid filepaths that can be processed by SoX.

    Parameters
    ----------
    input_filepath_list : list
        A list of filepaths.