They whimpered silently, because if they speak louder the King might know of it and they would face punishment. 
ðeɪ  saɪlʌntli, bɪkɔz ɪf ðeɪ spik laʊdɜ˞ ðʌ kɪŋ maɪt noʊ ʌv ɪt ʌnd ðeɪ wʊd feɪs pʌnɪʃmʌnt. 
 Indian's voice is very clear and very monotone in this recording. The speech is delivered at a moderate pace and the sound is very close-sounding, giving the impression of being spoken directly into the microphone.