don't run creation and application of error patterns in parallel

        )

        # apply bitstream processing and save unprocessed bitstream

        # Important: don't apply parallel processing - simulate_tx() generates error patterns and applies them;

        # however, the error patterns have the same name, i.e. running these tasks in parallel might lead

        # to collisions and eventually cause issues with being deterministic across multiple runs

        split_chan_bs_unprocessed = split_chan_bs

        split_chan_bs = apply_func_parallel(

            self.simulate_tx,

            zip(split_chan_files, split_chan_bs, repeat(logger)),

            None,

            "mt" if self.multiprocessing else None,

            None,

            show_progress=False,

        )

        voip = [scb[1] for scb in split_chan_bs]