我和我侄子一起工作的AIY套件在语音演示过程中向我们抛出了以下错误，提示麦克风无法正常工作，扬声器和其他所有设备都工作正常。有人对如何解决此问题有任何建议吗？
Recording...
ALSA lib pcm_pulse.c:752:(pulse_prepare) PulseAudio: Unable to create stream: Connection terminated
arecord: set_params:1363: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 16
CHANNELS: 1
RATE: 16000
PERIOD_TIME: 125000
PERIOD_SIZE: 2000
PERIOD_BYTES: 4000
PERIODS: 4
BUFFER_TIME: 500000
BUFFER_SIZE: 8000
BUFFER_BYTES: 16000
TICK_TIME: [0 0]
Microphone recorder died unexpectedly, aborting...