As the motherboard integration is gradually improved, the integrated sound card has become the current trend of the current computer, and with the technology of the integrated sound card chip, it has a trend of rectification of the independent sound card. According to popular classification, the AC'97 sound card is divided into hard sound cards and soft sound cards. Among them, the AC'97 hard sound card, first most of the independent sound cards are hard sound cards; and the sound card integrated on the motherboard also has a hard sound card: these sound cards In addition to the Audio Codec chip, the Digital Control chip is integrated on the motherboard, that is, the chip and auxiliary circuit are integrated into the motherboard. These sound card chips provide independent digital audio processing units and ADC and DAC conversion systems, and finally output analog sound signals. This hard sound card and ordinary independent sound card are not very different. It is more like a separate sound card that integrates on the motherboard, and due to the improvement of integration, the load of the CPU is reduced, and the sound quality has also improved, but the corresponding cost has increased. It is now rarely used by the motherboard manufacturer. The AC'97 soft sound card integrates Audio Codec on the motherboard, and the part of Digital Control is completely replaced by the CPU and saves a lot of costs. According to the provisions of the AC'97 standard, the pin between the different AUDIO CODEC97 chips is compatible, in principle, can be replaced with each other. That is, the AC'97 soft sound card is just a CODEC chip based on AC'97 standard, without digital audio processing units, so the computer is playing audio information, except for all processing works outside D / A and A / D conversion. To hand it over to the CPU. It can be said that the AC'97 soft sound card simplifies the hardware, and the design idea is still a sound card that implements the AC'97 specification standard. There are also some consumers to think that the soft sound card is no Digital Control chip, but uses software simulation, so there are two problems: First, its CPU usage is definitely higher, it is easy to produce the sound, and the second sound quality is not as common independent. The sound card is compared to the comment. In fact, as the CPU's frequency is continuously improved, the amount of audio data is not increased, and the problem with the so-called CPU usage has been ignored. And regarding the sound quality, although it is difficult to compare with the high-end independent sound card, with the continuous upgrade and improvement of Soundmax 3.0 driver, the AC'97 soft sound card has hardware-level data processing conversion capabilities and the highest 94DB signal-to-noise ratio. Sound quality playback capability, increased Sensaura is 3D positioning sound, with XG-compatible Sondius-XG MIDI soft wave table, and the latest sound effect algorithm SPX, upgrade AC'97 soft sound card to an unprecedented height, completely change consumption The sound quality in the mind is poor. Sound cards often encounter some wonderful problems during use, including hardware problems, and countless software failures, and some representative issues will be selected, through understanding of these issues, and consumers. The corresponding processing can be made according to the situation, and the actual problem can be solved in time. First, the sound card is silent. If the sound card installation process is normal, the equipment can be normally identified. Generally, the possibility of hardware failure is small. 1. Connect to the speaker or the headset. 2. The speaker or the earphone is intact. 3. The audio cable is not damaged. 4. Whether the sound channels in the Windows volume control are shielded. If the above 4 is normal, there is still no sound, then we can try to replace the new version of the driver try and remember the latest patch to install the motherboard or sound card. Second, playing MIDI silent silent sound card is playing MP3, very normal, but it is unable to play the MIDI file. From the perspective, there is no problem with the sound card itself, and it should be a problem.
You can go to the control panel → multimedia → audio → MIDI music play, select the appropriate playback device. Of course, it is also possible that the MIDI channel in Windows volume control is set to a silent mode, and the mute check is removed. Third, playback CD silent If playback MP3 has sound, you should eliminate the sound card failure. The biggest possibility is that you don't have a good CD audio cable. The CD decoding can be directly decoded directly on the ordinary CD-ROM, and 4 core wires and sound cards attached via CD-ROM. One of the lines of the line is connected to the analog audio output on the CD-ROM, and the CD in the other and the integrated sound card is connected. CD -IN is generally found around the integrated sound card chip, it is necessary to note that the audio line has the size of the size, must Use the appropriate audio line with it. Fourth, the WAV audio file cannot be played WAV audio files is often because the audio devices under "Control Panel → Multimedia → Devices" are more than one, and one can be disabled. 5. There is noise-to-noise ratio when playback is generally the result of noise, and the integrated sound card is particularly disturbed by the background noise. However, with the strengthening of the sound card chip signal, most of the integrated sound card signal noise ratio is 75db, Some high-end product signal-to-noise ratios are even 95dB, and there is noise problem. In addition to the problem of signal-to-noise ratio, clutter electromagnetic interference is the only reason for noise. Since some integrated sound cards use cheap amplifier units, workmanship and materials are unbearable, the signal-to-noise ratio is much lower than the standard of the medium and high-end motherboards, and natural noise cannot be controlled. Since the Speaker OUT uses the amplifier unit on the sound card to enlarge the signal, although the output signal is "large", the signal-to-noise ratio is very low. Line OUT is bypass the amplifier unit on the acoustic card, directly outputs the signal to the speaker in line transmission, if there is a background noise, I believe it will improve many. However, if you use a inferior speaker, I believe that the improvement will not be large. Sixth, sound cards appear when running large programs, due to integrated soft sound card digital audio processing, if the computer configuration is too low, this problem may occur. In the Control Panel, select System → Device Manager, select the disk drive, find the parameter item of the hard disk, and double-click the parameter item, remove the tip of the DMA option before the pop-up. However, after the DMA data interface will reduce the performance of the system; or install the latest motherboard patches and sound card patches, replace the latest drivers can also achieve a certain effect. 7. After installing new Direct X, the sound card does not vote some sound card drivers and the new version of Direct X is not compatible, causing the sound card to not sound in new Direct X. If you have a new version of the Direct X after the Direct X can't vote, you need to replace the new driver or "Direct X Free Unload" to reload the old version after uninstalling the Direct X. Eight, Direct X Diagnostics Display does not support hardware buffering, the sound card does not sound software buffer is too small, resulting in unable to vocal. Open the Control Panel, Multimedia Properties → Device → Media Control Equipment → Waveform Audio Device, where has a setting option to change the default 4 second software buffer capacity to maximum 9 seconds. Nine, after overclocking, the sound card cannot be used normally because of overclocking, some integrated sound card works in abnormal frequencies, and there will be popped sound, no sound, etc. The author is advised not to overclock, so that the normal operation of the sound card is no problem. If you must use it overclock, try to work at standard frequencies so that the integrated sound card can work in normal frequencies, usually to ensure normal use. Ten, the sound card cannot be recording most of the integrated sound card is a full-duplex, and the chance of the recording part is also very small. First check if the jack is "Microphone Enter", then double-click the "Small Speaker" icon, select "Properties → Recording" on the menu to see if the settings are correct.
Next, "Conflue Devices" and "Line Input Devices" are adjusted in Control Panel → Multimedia → Devices to set them to "Use". Then go to "Control Panel → Multimedia → Audio → Recording Preferred Equipment", click on the microphone small icon to enter "Recording Control", where you can preset the recording channel, then you can use the recording function. If this small thing becomes gray, you can try to remove the sound card to reload. There is also a special situation: because the integrated sound card generally does not have a power amplifier chip, it is impossible to promote the high-end recording equipment, so it cannot be recorded, in which case the high-grade sound card can be replaced, or a higher grade motherboard. The author's Apple Mickey can only be used on the ASUS motherboard or on the SB Live sound card. Of course, if you don't care about the MIC, you can replace a low-end MIC to solve the problem. Eleven, the integrated sound card is similar to the fast forward effect when playing any audio files. Because the sound card has sounded, I believe the problem may be on setting and drive. If the computer is using overclocking, you should first reduce the frequency, then turn off the acceleration function of the sound card. If this is not, you should look for the motherboard and sound card patches and new drivers. Twelve, you can't use four channels to use some integrated sound cards to sound, you can't use four-channel mode, believe or set problems. Many sound cards have four channels through software simulations, simply copy the sound of the front speaker to the rear speaker, so that when playing MP3 and or listening to the CD, it is four channels, while 3D games or play There is no way when the DVD is, or these sound cards can be said, not the real four channels. Thirteen, when running online chat programs, the sound is intermittent in fact, this problem does not turn off the card, because the network bandwidth cannot smoothly transmit sound signals because of the restriction of network traffic. Try not to open large programs when chatting online, do not have large-flow network operations such as download, if you can replace the network access method, increase bandwidth, will be an eternal way for us. Fourteen, after replacing the sound card multiple times, when re-use the integrated sound card, Windows prompts that the hardware driver is not found. This fault is generally not normal due to the first load driver, or in config.sys, automatic batch A sound card driver has been run in the file autoexec.bat, and the dosstart.bat file. This can be deleted for a certain driver file that is running inside, of course, you can also delete the three files mentioned above to resolve the fault. If there is no file in the above three files, the driver is not installed, it is necessary to modify the registry, click the "Start" menu - "Run", enter "regedit" Enter in the dialog, will The acoustic card-related registry key delete (such as the sound card model is ALC650, click Edit "-" Find ", enter the ALS300, then remove the found byte, then press F3 to continue look up, Remove the option to be removed). Fifteen, BIOS settings to the BIOS unfamiliar user misunderstand on the board. Enter BIOS, select I / O Device Configuration → Onboard AC97 Audio Controller, select Enanle or Auto. This process is passed on the author's ASUS motherboard. It is basically similar on other motherboards. If it is award BIOS, enter the "intergrated peripherals" in the BIOS, select "AC97 AUDIO" to change "DISABLE" saved can. XVI, after installing the NIC or other equipment, the sound card is no longer speaking this problem, most of which is due to compatibility issues and interrupt conflicts.
