英伟达JETSON tk系列开发板设置alsamixer录音教程

对于NVIDIA的arm-v71架构的linux定制系统，若需要录音，应该在terminal中设置声卡参数如下：

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

然后使用简单的record.c即可实现录音功能。