1 Troubleshooting Your PC
If Your PC Has an Audio (Sound) Problem
28
If Your PC Has an Audio (Sound) Problem
Problem
Solution
No sound when running any
applications.
If you are using Windows NT 4.0, check the volume, mute, and balance settings. Refer to the operating system
documentation for more information.
Absence of sound can also be caused by a hardware conflict. Hardware conflicts occur when two or more
peripheral devices compete for the same signal lines or channels. Conflicts between your audio interface and
another peripheral device might be due to the settings of the I/O addresses, IRQ channel, or DMA channel. To
resolve the conflict, change the settings either of the audio interface or of any other ISA accessory in your system
(refer to page 27).
No sound when playing a
multimedia/audio CD
Check that the volume control on the CD-ROM drive is correctly set or that the audio cable for the
CD-ROM drive is correctly connected to the connector on the system board. If you are using headphones or
speakers, ensure they are correctly connected. For information on connecting audio accessories, refer to your PC’s
User’s Guide
.
No output from the 8-bit or
16-bit digitized sounds.
This might be due to the DMA channel selected or to an interrupt conflict. Use your operating system’s audio
control software to change the audio interface’s DMA channel or IRQ setting (refer to page 27).
Audio input from the
microphone is too low, or no
audio at all.
Check that the microphone specifications meet the requirements of the 16-bit sound components. The microphone
should be a 600-ohm electret type.
Humming noise.
If the power grounding of your audio components is inadequate, a humming noise may be generated. Plug all
devices into adjacent power outlets (outlets within 5 cm / 2 inches of each other), or use line filters.
Occasional crackles when
playing back sounds.
These crackles are usually the result of your PC being unable to transfer audio samples within the required time. A
solution is to use a lower sampling rate. Recording and playing back at 22 kHz is less demanding upon system
resources than recording audio at 44 kHz.
The PC hangs while
recording.
Uncompressed digital audio can eventually fill your hard disk. For example, one minute of stereo sound recorded at
a resolution of 44 kHz will occupy about 10.5 MB. Before recording, check that there is enough free space on your
hard disk.
Data compression can reduce the space required. The A-law and m-law hardware compression used by the audio
interface enables the sampling of sound at a resolution of 16-bits, but it generates the same quantity of data as an
8-bit sample.
A new add-on sound card
does not work.
If you install an add-on sound card, you will need to disable the integrated sound features on your PC. To disable
integrated sound (on Windows 95, Windows 98 and Windows NT 4.0), select
Control Panel
from the SSSSttttaaaarrrrtttt
menu, then click on
Multimedia
Advanced
. Click on the
Audio Device
icon, then select the
Do not use
audio features
on this device radio button.
Summary of Contents for Vectra VEi 7
Page 1: ...Troubleshooting and Upgrade Guide www hp com go vectrasupport Corporate PCs ...
Page 40: ...1 Troubleshooting Your PC Hewlett Packard Support and Information Services 40 ...
Page 66: ...2 How to Install and Upgrade Accessories In Your PC Installing a Master Pass Key Lock 66 ...
Page 79: ......
