若Jetson TK1的音频不能用，可以在终端输入以下命令，再次测试，就可以使用了。（注意：在Jetson TK1硬件上音频处，上面的是话筒，下面的是听筒）。
amixer cset name="Stereo ADC MIXL ADC2 Switch" 0 amixer cset name="Stereo ADC MIXR ADC2 Switch" 0 amixer cset name="Int Mic Switch" 0 amixer cset name="ADC Capture Switch" 1 amixer cset name="RECMIXL BST1 Switch" 0 amixer cset name="RECMIXR BST1 Switch" 0 amixer cset name="RECMIXL BST2 Switch" 1 amixer cset name="RECMIXR BST2 Switch" 1 amixer cset name="Stereo ADC L1 Mux" "ADC" amixer cset name="Stereo ADC R1 Mux" "ADC" amixer cset name="Stereo ADC MIXL ADC1 Switch" 1 amixer cset name="Stereo ADC MIXR ADC1 Switch" 1 amixer cset name="Stereo ADC MIXL ADC2 Switch" 0 amixer cset name="Stereo ADC MIXR ADC2 Switch" 0 amixer cset name="IN1 Mode Control" "Single ended" amixer cset name="IN2 Mode Control" "Single ended" amixer cset name="Mic Jack Switch" 1
