有人知道高通msm8909平台如何确定双mic是否生效?
时间:10-02
整理:3721RD
点击:
有人知道高通8909平台如何确定双MIC是否生效?按照如下操作,还是不知道到底怎么样才能判断的处双mic是否生效啊Regarding testing of dual mic, below are commands which are provided for enabling dual mic.
Loopback happens fROM dual handset mic to headphone path by using below commands:
//Enabling dual analog mics:
//TX:
tinymix 'DEC1 MUX' 'ADC1'
tinymix 'DEC2 MUX' 'ADC2'
tinymix 'ADC2 MUX' 'INP3'
//enable headphone path:
//RX:
tinymix 'RX1 MIX1 INP1' 'RX1'
tinymix 'RX2 MIX1 INP1' 'RX2'
tinymix 'HPHL Switch' 1
Now Tx and Rx devices would be enabled with above commands.
To test dual mic routing, perform afe loopback as below:
//AFE loopback
tinymix 'PRI_MI2S_RX Port Mixer TERT_MI2S_TX' 1
tinyplay -D hw:0,5 -P
//Open in new windows
tinycap -D hw:0,11 -P
Loopback happens fROM dual handset mic to headphone path by using below commands:
//Enabling dual analog mics:
//TX:
tinymix 'DEC1 MUX' 'ADC1'
tinymix 'DEC2 MUX' 'ADC2'
tinymix 'ADC2 MUX' 'INP3'
//enable headphone path:
//RX:
tinymix 'RX1 MIX1 INP1' 'RX1'
tinymix 'RX2 MIX1 INP1' 'RX2'
tinymix 'HPHL Switch' 1
Now Tx and Rx devices would be enabled with above commands.
To test dual mic routing, perform afe loopback as below:
//AFE loopback
tinymix 'PRI_MI2S_RX Port Mixer TERT_MI2S_TX' 1
tinyplay -D hw:0,5 -P
//Open in new windows
tinycap -D hw:0,11 -P
这是高通回复你的吗? 你按他的操作啊。
你可以实际验证一下,双MIC是降噪用的。你在结构密封好的情况下,可以找一个比较噪的环境下验证一下。如果起作用,理论上对方听不到太多的噪声的。