Merge branch 'main' into experiment_tests

    """delay audio"""

    if delay is not None:

        if isinstance(x, audio.ObjectBasedAudio):

            raise ValueError("Delay not possible for ISM input")

        if logger:

            logger.debug(f"Delaying audio by {delay} ms")

        x.audio = audioarray.delay(x.audio, x.fs, delay)

import copy

import logging

import re

from pathlib import Path

from tempfile import TemporaryDirectory

from typing import Optional, Tuple, Union

        result = run(cmd, logger=logger)

        # parse output

        measured_loudness = float(result.stdout.splitlines()[3].split(":")[1])

        scale_factor = float(result.stdout.splitlines()[-3].split(":")[1])

        # we are looking for the (floating-point) number after the search string - '( )' around the number denotes the first group

        measured_loudness = float(

            re.search(r"Input level:\s+([-+]?(?:\d*\.*\d+))", result.stdout).group(1)

        )

        scale_factor = float(

            re.search(r"Scaling factor:\s+([-+]?(?:\d*\.*\d+))", result.stdout).group(1)

        )

    return measured_loudness, scale_factor

        )

    tmp_input_signal = input.audio

    tmp_output_signal = np.ones((48000, 2))

    with TemporaryDirectory() as tmp_dir:

        tmp_dir = Path(tmp_dir)

        # write temporary file

        write(tmp_input_file, tmp_input_signal, sf)

        write(tmp_output_file, tmp_output_signal, sf)

        # run command

        run(cmd)

        run(cmd, cwd=tmp_dir)

        tmp_output_signal, out_fs = read(tmp_output_file, 2, sf)