topic Re: [IMX6] Change Audio card on Android 7 using Sabresd Board in i.MX Processors

[IMX6] Change Audio card on Android 7 using Sabresd Board

mayqueen — Fri, 14 Apr 2017 08:27:33 GMT

Hello All:

As title, I boot success on Android 7 using HDMI mode, but the default audio card is wm8962 audio codec, so it's so creepy when I control the HDMI monitor but the sound output is from wm8962 speaker.

Anybody know how to change the default audio card on Android, I think maybe modify tinyalsa source on HAL layer?

Thank you!

Re: [IMX6] Change Audio card on Android 7 using Sabresd Board

gary_bisson — Mon, 17 Apr 2017 08:53:51 GMT

Hi,

You can look at the patch below which does just that:

tinyalsa: allow HDMI to be used as primary output/input device · boundarydevices/android_hardware_imx@8aca7d2 · GitHub

With that patch, if you set one property to 1 then the audio will go to HDMI:

$ setprop persist.audio.hdmi_out 1

Note that this property is persisten across reboot, you only need to set it once.

Regards,

Gary

Re: [IMX6] Change Audio card on Android 7 using Sabresd Board

Yuri — Mon, 17 Apr 2017 09:45:18 GMT

Hello,

The following may help.

https://community.nxp.com/docs/DOC-93745

Regards,

Yuri.

Re: [IMX6] Change Audio card on Android 7 using Sabresd Board

mayqueen — Wed, 19 Apr 2017 03:28:32 GMT

Awesome! thanks! BD is really a powerful contributor!

Re: [IMX6] Change Audio card on Android 7 using Sabresd Board

wangxizhi — Tue, 01 Aug 2017 07:57:15 GMT

HI May Queen:

I have some questions about IMX6 SABRE board, I port android N 7.1.1 with IMX6 SABRE board(cpu imx6qp), Both the development board and the code are provided by NXP , I think the development board should work properly . but my code have so many problems? I think it must be something wrong with my operation，I want to know if there were any problems when you debug the source code，Can you give me some reference about how to port android N 7.1.1 with IMX6 SABRE board? I looked at the documentation for the android_N7.1.1_1.0.0_docs folder, but it still didn't work out，Thank you very much！