workload:Standard/Typical reactor:-Step 1: Wait for the event to arrive (reactor)-Step 2: Distribute read-ready events to user-defined processors (reactor responsible)-Step 3: Read the data (user processor is responsible)-Step 4: Process data (user processor is responsible)Improved implementation of simulation Proactor:-Step 1: Wait for the event to arrive (Proactor)-Step 2: Get a read-ready event to run the read data (now owned by Proactor)-Step 3: Distribute the Read event to the user process
FFMPEG (ii)-Universal multiplexer
One: Technical points
As mentioned in the previous article, the reuse structure of the MP4 type differs from other types, such as mp4,mov,flv, where the H264 data does not contain descriptive information such as SPS,PPS, to reduce overhead,
The same is true for AAC data, which requires converting the previous 7-byte Adts header to a two-byte frame length.
FFmpeg provides something called the filter filters to do this.
Please note: before adjusting, please make sure your computer has a built-in microphone, the sound card driver is properly installed, and please temporarily turn off QQ or other software that needs to call the microphone before adjusting.
The sound card driver name is Realtek high Defenation Audio
Can be seen in the Start-Control Panel-programs (Programs and functions)-Uninstall Progra
This information and technique is rarely shared on the web, but many people may need it. Share the experience here. This is also a problem that has plagued me for a long time. Because I bought this adapter, I found that when I recorded it, the iphone's headphone microphone had a lot of noise that could not be eliminated.First of all, this adapter has been sold in a certain Amoy net. The main point here is how to set up a sound card driver. Do not use
How does win10 limit the application to disable or enable the microphone function ?, Win10 microphone
How does win10 limit the application to close or open the microphone. I want to prevent some applications from opening our microphone. I will share my experience with you. Hope to help you.
Click "start" in win10.
1. We reinstall the sound card driver, can go to Lenovo official download can also directly use the Driver wizard to download OH
2. Our right computer task bar right click on the "Horn" and then click on the pop-up interface "recording equipment", the following figure:
3. Then pops up a "microphone"-> "Microphone" and we click "Properties" as shown in the following figure
4. Then in the
Step one: Do not recommend using the system's own sound card driver
1. If you install a system that uses the system's own sound, it may be that the sound is too old to use the microphone.
2. If you do use a system sound driver to drive, we can download a "Driver Wizard" to update your sound card driver.
3. The installation of sound card driver does not solve the microphone problem, but we will be in th
Automatic microphone recording and microphone recording
Recently, we have been studying Speech Recognition Using Baidu's sdk. Only recognized parts are found, and I need to save the audio file and automatically generate the audio file when the sound is passed in.
First run the Code:
Public class EngineeCore {String filePath = "E: \ voice \ voice_cache.wav"; AudioFormat audioFormat; TargetDataLine targetData
1. In desktop mode, press WIN + X on the keyboard to open the advanced management tool and select control panel ].2. In the control panel, select hardware and sound ].3. Select [sound] on the right ].4. Select recording in the audio ].5. Now you can see the "microphone" device, as shown in the figure below:6. Right-click the microphone and select Properties ].7. Select listener in
One, under Windows XP
1, directly right click on the taskbar icon, and then click " Adjust audio properties ";
2, in the Open " Sound and Audio device properties "-" audio "-" volume " specific as shown in the picture;
3, again in the pop-up window click " Options "-" advanced control " operation as shown in the following figure;
4, OK again we click on " Advanced "-" advanced " details as shown in the picture.
5, here we find "
1, first in the Win10 we will see a small sound icon, we right-click it, and then click on the pop-up menu "recording Device" as shown.
2, and then in the pop-up dialog box we click on "Microphone Array", and then find the bottom of the "Properties" option, as shown.
3, finally in the "Microphone array" you will see that there is an "enhanced" tab, here will be: Pick up the sound beam formation, echo
1. We use the notebook so as shown below "WIN" + "X" and then click "Control Panel" as shown in the following figure.
2. Then we found the "sound" option on the open page, as shown in the figure click to enter.
3. OK, click the "Record" option in the Voice dialog and enter as shown in the picture.
4. There will be a "microphone" option, as shown in the picture:
5. Now we right click on it, that is, face Kat "
1. Go to the Control panel of the system let's see what the reason is, in the "Start"-"Control Panel"2. In the Open new window to find the "Sound" menu click to enter
3. Then in the Pop-up Voice dialog box to find the "Recording" tab, click to switch past.
4. Here we find the microphone to select him first, as shown in the following figure:
5. Then we right click on "Microphone" and th
method One:1. As shown in the following figure, we are near the "Fn" + "F1" key on the keyboard of the notebook.2. A "Settings" window for the WIN8 system is then opened, as shown in the figure:3. Here we will see a "sound" option, click to enter as shown in the figure.4. Now we see a "Recording" tab on the right side of the "Sound" option to click on it.5. Here we go to the "recording volume", where you can zoom in and out of speed, Min is small, Max is big:Method Two:1. Access to the computer
1. As shown in the following figure, we click "Start" in the computer to find "Control Panel" in the Open menu and click Enter.
2. Then in the open interface we click on the "Sound" option to enter as shown in the picture.
3. In the Pop-up Voice dialog box find the "Recording" tab click to enter.
4. Then we find the "microphone" as shown in the following figure, details like:
5. Then in this interface we find the "
devices. Fourth, we hope to use SMT Welding for microphones to improve production efficiency. Digital microphones are suitable for SMT welding and can solve the noise produced by various RF interference on voice communication. The digital array microphone pickup Technology of fudi technology can suppress and eliminate echo and environmental noise during calls, the digital interface facilitates connection with the digital system.
Analog
Because now the camera will bring a built-in or external microphone, so that users can also be in the video language chat. However, you will find that when you use a camera microphone, you need to move the microphone 2 centimeters from your mouth to speak, the other side can hear clearly, or simply can not use the microphone
The use of chat equipment is an indispensable part of modern network life, in Windows 7 system, users in the microphone to chat online when the microphone is not sound, many people have encountered such a situation, how to operate to allow the microphone to reproduce the sound?
One, do not use the system with the sound card driver
1. The system will automatical
Windows7 system default sound and microphone sounds are relatively small, you may often in the XP and Win7 system switch back and forth, you will find that the XP system voice and microphone sound than the Win7 system. But the Win7 system also provides a tuning option that allows us to easily adjust the sound and microphone volume. Today I'm going to go into deta
The microphone we use when chatting with friends or family members in voice or video. However, recently, a user said that in the Win7 system, voice chat when talking when the microphone is not sound at all, this is how to solve it? below, the U Heroes Small series to introduce the Win7 system under the microphone can not speak the solution.
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