Whatever was said next would be crucial, so, in order to make his voice as clear as possible, he coughed a little, but taking care to do this not too loudly as even this might well sound different from the way that a human coughs and he was no longer sure he could judge this for himself.
Con el fin de tener una voz lo más clara posible en las decisivas conversaciones que se avecinaban, tosió un poco esforzándose, sin embargo, por hacerlo con mucha moderación, porque posiblemente incluso ese ruido sonaba de una forma distinta a la voz humana, hecho que no confiaba poder distinguir él mismo.