Although this way of troubleshooting driver issues is exceptionally time consuming, some users prefer to do things their own way. In a situation like this, you can update it manually. In other words, you will not get surround sound from garden-variety stereo sources.Auslogics Driver Updater is a product of Auslogics, certified Microsoft® Silver Application Developer DOWNLOAD NOW For example, DVD movies or standalone AC3 files offer native multichannel support, but ordinary MP3 files and games in stereo mode will only produce stereo sound. Also, refer to the sound card’s manual for the proper audio connection schemes.įinally, remember that not all sources produce multichannel audio.
Next, enable multichannel digital audio through the sound card’s setup or operating applet (usually visible in the System Tray). Check your sound card’s specifications to make sure it can produce multichannel digital audio (not all can).
If you feed analog signals to the receiver, only the front channels will operate (as if you played sound through your stereo PC speakers). When it receives compressed audio data (e.g., AC3 or DVD audio) from a sound card’s digital output, it decodes the audio and drives the proper speakers to produce " surround sound.” However, coaxial connectors will not handle multichannel audio already in analog form from the sound card. Home theater receivers typically use coaxial connections. ( )-to isolate the PC speaker output from the stereo’s auxiliary input and decouple the electrical connection between the two devices. Use a ground loop isolator-such as the $29.95 unit from Xitel Pty., Ltd. When you connect two separate systems in this way, a ground loop sometimes occurs because of the different voltages at both ends of the “ground” wire.
Turn off any high-energy devices in the house, or power the speakers from a different circuit in the house.Īnother common hum problem occurs when you attempt to wire your PC speaker output to your home stereo’s auxiliary input.
For example, high-energy devices such as air conditioners, motors, coffee makers, and even a low-quality computer power supply can sometimes place noise on the AC circuit. Of course, there may be damage to the speaker’s amplifier circuit, so try another set of powered speakers.Īlso, check for low-frequency noise on the AC power line. This minor adjustment often goes a long way toward cleaning up a noisy signal. Remember that high volumes on your amplified speakers can really bring out any unwanted noise in your audio, so turn up the mixer signals in the Windows Volume Control, and turn down the speaker volume to the lowest acceptable level (see " Eliminating Audio Distortion" earlier in this chapter). Symptoms like hum and buzz indicate a power grounding issue, but start with the basics (e.g., checking for tight speaker connections).
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