Already frustrated by their vain efforts, the monkeys became furious. 
ɔlɹɛdi fɹʌstɹeɪtʌd baɪ ðɛɹ veɪn ɛfɜ˞ts, ðʌ mʌŋkiz bɪkeɪm fjʊɹiʌs. 
 Indian speaks in a monotone voice at a moderate speed in a recording that sounds very clear and close to the microphone.