Today, we finally stabilized the two-way audio communication between our mobile phone and the single-chip microcomputer, and took the first step of success.
It can stably transmit a large data segment to each other, and both ends can fully identify the data.
Last week, the mobile phone sent data to the MCU through audio.
However, there is a problem that the mobile phone receives data from the microcontroller through mic.
The main problem is that
Input Method is an essential tool for our work. Like Windows XP, in Vista, the input method is sometimes not very useful. In some cases, we will find that five inputs cannot be used normally in Windows Vista, pinyin and pinyin. Especially when running in IE browser.
This is generally due to the role of the Internet security mode. The Internet security mode depends on the role of UAC, uipi, And Mic, therefore, it may be considered that the security
BecauseUipiWhen a high-permission process fails to receive a message when the high-permission process sends a message to the high-permission system;
Let's take a look at what uipi is: The following is taken from Baidu Encyclopedia:
Uipi refers to the user interface privilege isolation (User Interface privilege isolation), which is a WindowsA new security feature introduced after nt 6.0 (Vista) is the entireUACIt is an integral part of the mechanism. It is mainly used to intercept messages sent f
switch
Input-A codec Input Pin
Output-A codec output pin
Headphone-headphone (and optional Jack) headphones
Mic-mic (and optional Jack)
Line-line input/output (and optional Jack)
Speaker-speaker
Pre-special pre widget (Exec before all others)
Post-special post widget (Exec after all others)
For the start endpoint input on the path, it only needs to output to the next part. Similarly, for the outpu
I have encountered many problems when I am studying Android development these two days. Now I will record the mediarecorder () recording for my reference only ~~
Very convenient and simple ~~
Mediarecorder recorder = new mediarecorder (); // audio source mic recorder. setaudiosource (mediarecorder. audiosource. MIC); // content output format recorder. setoutputformat (mediarecorder. outputformat. three_gp
technology (802.1x) is an enhanced network security solution for wireless LAN. When the STA of the wireless workstation is associated with the AP of the wireless access point, whether the AP service can be used depends on the 802.1x authentication result. If the authentication succeeds, the AP opens the logical port for the STA. Otherwise, the user is not allowed to access the Internet. 802.1X requires the wireless workstation to install 802.1x client software. The wireless access point must be
(audio control)Volume Adjustment Process: The default value is interface 0, which sends the set cur command and the volume value. After the volume is changed, the set interface will be sent to interface 2 from interface 0, and then the audio data (PCM wave file) will be sent to interface 2 ), finally, send the set interface from interface 2 to interface 1.2. Interfaces 1 and 2: audio stream output (speak). Use endpoint 1, class 1 (audio), and subclass 2 (audio streaming ), the former balternate
Virtual Environment dependency Installation
Developers should learn to use virtualenv to manage multiple development environments
Under Ubuntu/centos/MACOs
Virtualenvwrapper makes virtualenv easier to use, so we installed
# Installation: sudo Pip install virtualenv virtualenvwrapper
Modify ~ /. Bashrc or other environment variable-related files (such as. bash_profile or. zshrc after zsh), add the following statement
export WORKON_HOME=$HOME/.virtualenvsexport PROJECT_HOME=$HOME/workspacesource /
Virtualenvwrapper is an extension pack for managing virtualenv, which is handy.1. Installation:#安装virtualenv (sudo Install virtualenv# installation virtualenvwrapper (sudo Install Virtualenvwrapper2. Configuration:Modify ~/.bash_profile or other environment variable related files (such as. BASHRC (This is under my Ubuntu15.10) or use ZSH. ZSHRC) and add the following statement:Export workon_home= $HOME/. Virtualenvsexport project_home= $HOME//usr/local/bin/ Virtualenvwrapper. SHThen run:SOURCE
Original: http://www.cnblogs.com/asmer-stone/p/5470144.htmlVirtualenvwrapper is an extension pack for managing virtualenv, which is handy.1. Installation:#安装virtualenv (sudo) pip install virtualenv# install virtualenvwrapper (sudo) pip install Virtualenvwrapper2. Configuration:Modify ~/.bash_profile or other environment variable related files (such as. BASHRC (This is under my Ubuntu15.10) or use ZSH. ZSHRC) and add the following statement:Export workon_home= $HOME/.virtualenvsexport project_hom
Common learning, common progress, reproduced please indicate the source. Welcome to Exchange:Sfssqs, apply for the words "Android Car"================= =========================HTTPS://developer.android.com/traning/auto/start/index.xmlLet's study Android Auto together.Android Auto inherits from the Android platform and serves the car system. The handheld device needs to run in Android5.0 or higher, and when the user connects it to a compatible car, the auto provides the interface to interact wit
With an SSH key login, it turns out that you can't log in with the key, and I'm not allowed to enter the password. Distress.
Enter SSH connection code
Ssh-i private.key-v User@host.com-p22
There is nothing wrong with the information from the connection.
Debug1:authentications that can Continue:publickey,gssapi-keyex,gssapi-with-mic,passwordDebug1:next Authentication Method:publickeyDebug1:offering Public Key:private.keyDebug1:authentications that
)
[Vista applies]
① Click Start button.
② Select the Control Panel and click on the hardware and sound .
③ Click on the sound and select the properties of the recording label.
④ click on the upper volume tab. Then drag down the db level of "Mike propulsion".
[XP applies]
① Click Start button.
② Select the Control Panel , select sounds , voice and audio devices, sound and audio Devices .
③ Click on the speech tag at the top of the page.
④ Click the Volume button in th
Input method is our indispensable tool, and Windows XP, some of the time in Vista can not be used in the input method is very useful, some times we will find Windows Vista can not be normal use of wubi input, violet Pinyin, pinyin, etc. Especially when running in IE browser.
This is generally due to the role of IE protection mode, because the IE protection mode depends on the role of UAC, Uipi and mic, so presumably can be considered UAC, UIPI or
We've been in an article detailing some of the ways in which Android multimedia recording functions are implemented. This includes the implementation of the recording method. Today we can learn more about the specific Android recording distortion solution by introducing this article to help you solve the problems that arise in practical applications.
The mic in recording function was tested on 6410+WM9714 's Android platform and a bug occurred. Sound
Implementation steps:
1. Pycharm, the IDE has a project setting icon that is configured for the run icon, and the Configure run file is myfile.py2.
Copy Code code as follows:
# --------------------------------------
#! /usr/bin/python
# File:myfile.py
# Author:michael Fan
From make.py Import do
def main ():Do ()
if __name__ = = ' __main__ ':Main ()# --------------------------------------
3.
Copy Code code as follows:
MIC
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