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Re: Internal Micorphone


On Mon, Dec 12, 2011 at 04:06, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote:
> On 12/10/2011 10:09 AM, Leon Romanovsky wrote:
>> Hi All,
>> We are trying to understand, if internal microphone is available in AC100.
>> According to specifications, there is internal microphone:
>> Specifications:
>> AndroidTM 2.1 NVIDIA® TegraTM 250 Mobile Processor (1GH, ARM) RAM: 512
>> MB DDR2 (333 MHz) 8GB flash storage (NAND) 25.7cm (10.1”) TruBrite®
>> display with LED backlight, 1,024 x 600 pixels Bluetooth 2.1 +EDR*,
>> WLAN (802.11 b/g/n), Mobile Broadband 1 x USB 2.0, 1x Mini USB, Card
>> Reader (SD, MMC), Audio out/Mic in combo socket, HDMI® 1.3 MP webcam
>> with integrated microphone Location based switchable desktop Toshiba
>> Home Menu, a customisable desktop with widgets and shortcuts Size:
>> 262mm x 190mm x 14 / 21mm Weight: starting at 870g
>> According to schematics, the internal microphone is not connected:
>> http://www.go-gddq.com/upload/2011-07/11072617361523.pdf
>> Did anyone use internal microphone under android?
> Internal mics are often digital (DMIC) rather than analog; you could try
> that out. It's possible that you'd also need to turn on a voltage
> regulator to use it; some of our reference boards work that way (same
> regulator as for the webcam in our case)
Thanks, I'll check it.

Where do I need to place DMIC configuration ? under
sound/soc/tegra/tegra_alc5632.c or arch/arm/mach-tegra/board* ?

Leon Romanovsky | Independent Linux Consultant
        www.leon.nu | leon@xxxxxxx

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