HP Dc7800 Troubleshooting Guide - Page 33
Solving Audio Problems, solutions listed in the following table.
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Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table. Table 2-7 Solving Audio Problems Sound cuts in and out. Cause Solution Processor resources are being used by other open applications. Direct sound latency, common in many media player applications. Shut down all open processor-intensive applications. In Windows XP only: 1. From the Control Panel, select Sounds and Audio Devices. 2. On the Audio tab, select a device from the Sound Playback list. 3. Click the Advanced button and select the Performance tab. 4. Set the Hardware acceleration slider to None and the Sample rate conversion quality slider to Good and retest the audio. 5. Set the Hardware acceleration slider to Full and the Sample rate conversion quality slider to Best and retest the audio. Sound does not come out of the speaker or headphones. Cause Solution Software volume control is turned down or muted. Audio is hidden in Computer Setup. The external speakers are not turned on. The audio device may be connected to the wrong jack. External speakers plugged into the wrong audio jack on a recently installed sound card. Digital CD audio is not enabled. Headphones or devices connected to the line-out connector mute the internal speaker. Double-click the Speaker icon on the taskbar, then make sure that Mute is not selected and use the volume slider to adjust the volume. Enable the audio in Computer Setup: Security > Device Security > Audio. Turn on the external speakers. Ensure that the device is connected to the correct jack on the computer. The speakers should be plugged into the rear lineout jack and the headphones should be plugged into the front headphone jack. See the sound card documentation for proper speaker connection. Enable digital CD audio. In the Device Manager, right-click on the CD/DVD device and select Properties. Make sure Enable digital CD audio for this CD-ROM device is checked. Turn on and use headphones or external speakers, if connected, or disconnect headphones or external speakers. ENWW Solving Audio Problems 27