use deepcopy instead of copy

#

import re

from copy import copy

from copy import deepcopy

from pathlib import Path

from tempfile import TemporaryDirectory

from typing import Optional

    # resample if samplingrate is not supported

    old_fs = None

    tmp = copy(x)

    tmp = deepcopy(x)

    if x.fs != 48000:

        warn(

            f"Filter type {flt_type} only supported for 48kHz samplingrate, not for {x.fs}Hz -> resampling"

    # set filter type and check if sampling rate is supported

    old_fs = None

    tmp = copy(x)

    tmp = deepcopy(x)

    if x.fs == 48000:

        flt_type = "HP50_48KHZ"

    elif x.fs == 32000:

    # set filter type and check if sampling rate is supported

    old_fs = None

    tmp = copy(x)

    tmp = deepcopy(x)

    if x.fs == 48000:

        flt_type = "20KBP"

    else:

        raise ValueError("Ratio of input and output sampling frequency not supported")

    # apply filter

    y = copy(x)

    y = deepcopy(x)

    for i, flt in enumerate(flt_type):

        y.audio = filter_itu(y, flt_type=flt, up=up[i], down=down[i])

        y.audio = delay_compensation(