Sound card Recording is a common requirement, such as watching a video or listening to a song online, and feeling that a piece of music is particularly good, but without downloading it, we can use the sound card recording technology to record it while playing.Achieve sound
Statement: the content of this blog is composedHttp://blog.csdn.net/droidphoneOriginal, reprinted please indicate the source, thank you! 1. struct snd_card
1.1. What is snd_card?
Snd_card is a top-level structure of the entire ALSA audio driver. The software logical structure of the Sound Card begins with this structure. Almost all audio-related logical devices are under the management of snd_card, the f
ranges from 20Hz ~ 20 kHz, so the sampling frequency must be at least 20 k × 2 = 40 kHz to ensure that low frequency distortion is not produced. This is also the use of 44.1 kHz for CD sound quality (slightly higher than 40 kHz is to leave room).
Signal-to-Noise Ratio: the ratio of the maximum fidelity output to the inevitable electronic noise calculated by DB. The larger the value, the better. Below 75 dB, noise may be detected in silence. The s
After getting a new piece of hardware, our approach to old hardware is often discounted. But for the sound card seems to be not very cost-effective, because the old sound card itself cost is low, can not sell what good price. Have you ever thought of "waste utilization" and installed two
to your sound card model, such as your sound card is ALC880, and then there are these lines nearby:
ALC880======3stack 3-jack in/a headphone out3stack-digout 3-jack in Back, a HP out and a SPDIF out5stack 5-jack in Back, 2-jack in front5stack-digout 5-jack, 2-jack in front
Statement: This Bo content by Http://blog.csdn.net/droidphone Original, reproduced please indicate the source, thank you. 1. struct Snd_card
What's 1.1 snd_card?
Snd_card can be said to be the entire ALSA audio-driven top-level of a structure, the entire sound card software logic structure began in the structure, almost all the sound-related logic devices
First , at the beginning of the computer into the System control Panel (this we can directly in the system to adjust the like Realtek, via)
If we enter, click to open the Audio Manager-then click on the left side setting-Check the Disable front panel jack detection-and then click OK.
Figure 1
Second, Device Manager sound card is disabled
This we need to right click on the computer and then
C ++ practice: Regular Expressions parse sound card parameters and regular expressions sound card
C ++ practice: using regular expressions to parse sound card Parameters
The delimiter used by the regular expression in Java. It's
1. Stay away from interference sources
There are too many devices in the computer that produce electromagnetic interference. CPU and video card are good at producing interference, and the sound quality of the sound card has a great relationship with the electromagnetic interference.When installing the
Linux sound card settings (speaker and headset sound solutions at the same time)-Linux general technology-Linux technology and application information, the following is a detailed description. This sound card is relatively new. It can only be installed with the official driv
= 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, y
1, in the Windows10 Cortana we search "Group Policy" can also enter gpedit.msc in the Run box, enter the Group Policy settings, as shown in the following figure
2, now we open the dialog box below to find "Computer configuration → management template → system → device installation" Open, we then click on the right "Configure device Installation Timeout" and double-click to open into the following figure shown.
3, then on the left side of the window we click on "Enabled", then click
1. Reboot as follows
For Award bios: Click del to enter bios, find "chipset futures setup", Press enter, find onchip sound on the right, and set it to disabled.Add one:Some Award bios are changed to integrate peripherals, and then ac97 audio is set to disabled.
For phoenixaward BIOS: after entering the bios, move the color block to the "advanced" tab, find the "I/O device configuration" below, press enter, and find the "onboard ac97 Audio Controller"
What about the computer with no sound? How to install the sound card driver? Is there a universal Audio driver installation tutorial? For beginners, "the computer does not sound and how to install the sound card" is a difficult pr
Environmental ubuntu12.04
Because the desktop version of the default installed, and the sound is also very convenient, here is the server version of the configuration, after all, do the development often or with the server version of
1. Installation
Apt-get Install Alsa-base It will also be a piece of alsa-utils, this is a toolkit, if not installed directly apt-get install
2. Configure
The sound defaul
Shield the integrated sound card to solve the problem of Ubuntu installation and sound generation-Linux general technology-Linux technology and application information. The following is a detailed description. Author: yafeihoo
After the Spring Festival, we split the motherboard, CPU, and 1 GB of memory and chassis of the previously broken computer. The
problem occurs because my laptop uses an integrated sound card, but alsa is not correctly configured.
First, determine whether a common user has the permission to access alsamixer.
If an error occurs during execution by a common user, it may be caused by permission issues. The solution is to add the current user to audio or directly execute
Chmod 777/dev/snd /*
Then you can run alsamixer to test the effect
Q: My Computer motherboard is the elite, integrated sound card, CPU is Celeron Ⅱ900mhz. When I overclocking to 1035MHz, into the system, the sound is not coming out. Bring the FSB back, and the sound is there again. Excuse me, what is the cause of this?Should the CPU overclocking to 1035MHz, the system uses 115MHZ non-
How to retrieve the small horn sound icon in the taskbar after the computer has finished installing the sound card driver
1, click the taskbar notification area of the triangle arrows;
2, click "Custom Customize";
3, you can see the sound set "hidden icon and notice";
4, in the d
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