removed random delay for background noise

    def add_background_noise(

        self, audio_object: audio.Audio, in_meta, logger

    ) -> np.ndarray:

        # range for random delay

        max_delay = int(2400000 * audio_object.fs / 48000)

        if self.background_noise.get("background_noise_path"):

            if not self.background_noise.get("background_noise_path").exists():

                raise ValueError(

            # if noise is too short raise error

            if len(noise_object.audio) < len(audio_object.audio):

                raise ValueError("Background noise too short for audio signal")

            if len(noise_object.audio) - max_delay < len(audio_object.audio):

                raise ValueError(

                    "Background noise may be to short for audio signal when considering the random delay"

                )

            # measure loudness of audio signal based on output format

            tmp_object = audio.fromtype(self.out_fmt)

            # compute desired loudness of background noise

            loudness_noise = loudness_signal - self.background_noise["snr"]

            # apply random delay and cut signal

            rand_delay = random_seed(

                range=(1, max_delay),

                master_seed=self.background_noise["master_seed"],

                prerun_seed=self.background_noise["seed_delay"],

                hexa=False,

            )

            noise_object.audio = delay(

                noise_object.audio, delay=-rand_delay, samples=True, fs=noise_object.fs

            )[: len(audio_object.audio)]

            # cut noise signal

            noise_object.audio = noise_object.audio[: len(audio_object.audio)]

            # scale background noise to desired loudness based on output format

            logger.debug(