effect, the Nexus 6P The delay in the Cardboard also dropped to 20ms, which was much better than the 100ms delay without VR mode. This also means that the same as the Nexus 6P mobile phone, you should start VR mode after the performance of the Gear VR class?HardwareNexus mode =In part of the VR hardware, we thought Google might launch a built-in processor and screen headset, but Google ended up with a headset
I used to have a pair of headset millet in front of me. But I did not cherish, until she fell into my glass of water, I regret mo, the most painful thing in the world is this. If God gave me another chance, I would say to you: I should buy a waterproof headset. yesterday evening back to the dormitory, can't help the temptation of food, big night, we can not eat, see also OK ah. So, Baidu search "the tongue
power supply for the Intel Platform one day in the future.Programmable substances: computers with random shapesIntel researchers are also studying how to use millions of tiny intelligent components called catom to make materials that can change shapes. If it is used to replace existing materials used by components such as the housing, display, and keyboard of a computing device, this technology can change the physical shape of the device to adapt to specific usage. For example, when a mobile co
1. Database-Oriented Architecture View
2. process-oriented architecture View
Linuxkernel layer:
Bluez protocol stack, UART driver, H4 protocol, HCI, L2CAP, SCO, RFCOMM
Library layer:
Libbluedroid. So
Framework layer:
Headset/handsfree and a2dp/avrcp profile are implemented. However, handset/handfree is developed directly on RFCOMM socket of bluez without using audio plugin of bluez, a2dp/avrcp is developed based on bluez's audio plugin, greatly red
A6188, is now coming to us. The difference is that the Mobile OMS (Open Mobile System) operating System is used for A6188. In terms of appearance, the A6188 version is almost the same as Google G2, with only a few minor changes, but its integrity is still the same as that of G2, and the white version is very beautiful.
The A6188 has a 320x480 pixel resolution 3.2 inch HVGA full touch screen with a built-in 3.2 million pixel camera and supports automatic focusing and video shooting. The built-i
iPod's immobility? It still won't work after ThinkPad is connected. Suddenly, senhai's MX series won't work, so it took three days to cook it.
1. Use a 1/3 audio intensity volume to drive the headset for 12 hours (100 ~ 1500Hz/5S scanning signal );
2. Use a 2/3 normal audio intensity volume to drive the headset for 12 hours (50 ~ 1800Hz/3 s scanning signal );
3. Use a 2/3 normal audio intensity volume to d
is normal;
Modem test
Test whether the modem function is normal;
) USB test
Test the USB port function is normal;
) PCMCIA Test
Test the PCMCIA interface function is normal;
) SPDIF Test
Test whether the infrared output function of the audio interface is normal;
s terminal, AV terminal test
Test the TV output of S terminal and AV terminal
3, the introduction of disassembly tools:
As a result of notebook maintenance more is to consider par
So overall, the first is the HDMI interface, followed by the DVI interface, and finally the VGA interface. First of all to determine what the LCD TV video input interface, if only VGA interface, then any one notebook can be competent; if there is a DVI or HDMI interface, then in the purchase of notebooks, we should pay attention to pick! Finally, if you want to use the fiber output audio signal, Then we should be careful to pick a notebook with SPDIF
project, for example, include QT5 Library and test app to check frame buffer Device later. I covered this topics in my previous post, so I wont repeat it here.Build Petalinux project, create BOOT. BIN and copy it together with the Linux image file ' Image.ub ' on SD card:Petalinux-buildPetalinux-package--boot--FSBL. /zedboard-hdmi-fsbl/release/zedboard-hdmi-fsbl.elf--FPGA. /zedboard-hdmi-hw/system_top.bit--uboot--force-o images/linux/boot. BIN
Insert SD card into slots of Zedboard and turn i
the spectral space created by oversampling. It is easy to see the violent noise rise above the pass band. Also visible is a small number of three harmonic distortions (peak proximity
0.06Fs
)。transmission and processing of PDM signalsA PDM bitstream is a logic level signal with a typical switching frequency near 3MHz, fast edge hopping. So it needs to be treated like any other fast signal (e.g. SPDIF, or analog video). It is important
SSI Audio Driver音频驱动的文章网上有很多,分析的也很具体,这里只记录本人在调试音频驱动的过程和理解。调试一个驱动,最主要的还是从本质上去理解它的工作原理,包括时钟,数据,中断,寄存器配置等。或许并不需要全部知道,但是追根到底会对以后的驱动有很大帮助。Audio driverlinux音频驱动的结构我个人感觉做得很漂亮,有面向对象编程的人不难看出这个结构与类图很想,将变化的东西封装了起来,层次清晰,方便理解和调试:CPU driver: Bus driver, such as I2S,SSI,AC97,ESAI,SPDIF. Encapsulates the configuration of the bus, such as the settings for master-slave mode.Codec driver: Encoder driver, corresponding to the decoding chip, encapsulating the operation of
registered under asterisk, such as call 1129;
ALSA sound card cannot be found when linphonec is running on the Development Board:
Run env on Ubuntu
Path =/opt/Freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/ARM-FSL-Linux-gnueabi/bin
Put ALSA under the Lib of the Cross Compiler:
/Opt/Freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/ARM-FSL-Linux-gnueabi/Multi-libs/lib/Opt/Freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/ARM-FSL-Linux-gnueabi/Multi-libs/usr/lib
Re-compile L
separately, the color is superior to that of S-video. Scart currently only has the standard for transmitting the 480i/576i signal.
Spdif
Sony and Philips digital audio interfaces
Coaxial or optical fiber
Sony/Philips digital interconnect format
Used only for digital audio output
HDMI
High Definition Multimedia Interface
19-pin flat trapezoid Joint
High Definition Multimedia Interface
Added copyright protectio
Asus a3v 1.73 256 M 60g DVD-CDRW 15 inch high screen ATI x700 graphics card 128 M licensed color 90% new site member price 7500 yuan Basic parametersModel a3vc A3517Vc-DRTime-to-market: 2005Intel Pentium M (Dothan) 740 (1.73g) processor)Maximum processor clock speed 1730 MHzLevel 2 Cache 2048kb L2System Bus 533 MHzMotherboard chipset intel 915pmMemory Capacity: 256 MBMemory type DDR2 533Support up to memory 2 SO-DIMM support up to 2 GBStorage DeviceHard drive type ATA-100Hard disk capacity 60 GB
see if the murmur is small.
Volume Control window The meaning of each purpose:
Master Volume: Sound card Total Volume
Waveform: Music Volume
Software synthesizer: Soft Effect Plug-in Volume
Front: Front speaker volume
Rear: Rear speaker volume
Subwoofer: Surround speaker volume
Center: Medium Speaker volume
Side: Side-mounted speaker volume (for 7.1 speakers)
SPDIF: Digital Interface Volume Control
Front Green in: front panel greens Jack i
create their own shortcuts. The FN key feature Daquan---Sony chapter
Fn+esc: Set to wait state
FN+F3: Mute (only valid in Windows)
FN+F4: Eject the volume adjustment status bar (only valid in Windows)
Fn+f5: Eject the Brightness regulation bar
FN+F7: Toggle Monitor
FN+F12: Set the system to hibernation
FN+NUMLK: Press equal to SCROLL LOCK key
Fn+insert: Press equal to pause key
Fn+delete: Press equal to break key
fn+ up ARROW key: Press equal to page UP key
Fn+ down ARROW
= front-left:0 [0%] [mute] [---] front-right:0 [0%] [mute] [---]
”
This indicates that the sound card driver defaults to mute, so you need to use the program to adjust the appropriate volume.
You could have used the "amixer" command to manually specify parameters and make volume adjustments. However, in order not to follow this article until now, the brain may have been confused friends scare away, you can try to use the following method, very convenient.
Enter command:
"Alsamixer"
audio signal, then we should pay attention to select a notebook with SPDIF fiber output. (DVI and HDMI can be turned between each other, but only after the transfer of video signal, can not transmit audio signals.) )
LCD TVs mostly support 1920x1080 resolution, but most laptops can't support this high resolution, so you'll need to make some settings on your laptop after connecting your laptop and LCD TV.
The method is very simple, first in the syst
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.