ac100 team mailing list archive

[Stephen Warren <swarren@xxxxxxxxxxxxx>]

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)