ThinkPad 390E Online User's Guide

Using the Audio Features

Your computer is equipped with the following:

• A 1/8-inch (3.5-mm) diameter external monaural microphone-in jack.

• A 1/8-inch (3.5-mm) diameter external stereo line-in jack.

• A 1/8-inch (3.5-mm) diameter stereo headphone or an external-powered speaker jack.

• A MIDI/joystick port on the Port Replicator with Advanced Etherjet feature. To use a MIDI device, you should first connect your computer to the Port Replicator with Advanced Etherjet feature; then connect an external MIDI device to the Port Replicator with Advanced Etherjet feature. After docking your computer in the Port Replicator with Advanced Etherjet feature, you should enable this port using the ThinkPad Configuration program.

Your computer also has an audio chip that enables you to enjoy various multimedia audio features. This audio chip provides the following features:

• Recording and playing back of PCM and WAV files in 8-bit or 16-bit format.

• Sampling of various rates from 8 KHz to 44 KHz for the WAV file.

• Playback of MIDI files through an FM synthesizer.

• Recording from various sound sources, such as an integrated microphone, an external microphone, or an audio device attached to a line-in jack or the CD-ROM drive.

• DOS game compatibility. You should select Sound Blaster Pro** for the audio adapter in the sound setup of the game. The ESS-Solo 1 DOS Emulation driver is installed on your computer.

• The 3D Effect sound function compensates for flat, two-dimensional sound image limitations by reestablishing the necessary information that allows the human ear to hear in three dimensions.

Attention: Do not enter suspend or hibernation mode when you are using audio features. You need to turn off any automatic timers that put the computer into suspend or hibernation mode. If the computer enters suspend or hibernation mode, data from a running audio program will be lost.

Using the 3D Effect Sound Function

To use the 3D effect sound function, do the following:

1. Double-click on the small speaker icon ( ) on the taskbar (usually at the bottom right of the Windows desktop).

   or

   Click on the Start button, and then select Programs, Accessories, Multimedia, and Volume Control.

   The "Volume Control" window appears:
   
   

2. Select Options on the upper left corner of the window; then select Advanced Controls.

   You return to the "Volume Control" window.
   
   

3. Click on the Advanced button which now appears in the Volume Balance column.
   
   

4. Put a check mark on 3D Effect Enable and click on OK.

Now you can use the 3D effect sound function.