User’s Manual
4-30
PORTÉGÉ/TECRA R700 Series
■
Karaoke
- cancels the specific frequency of sound and results in the
Vocal Cancellation
. Clicking the
Karaoke
icon, lowers the vocal sound
within music. Using the arrow buttons will adjust the musical key of the
sound.
Default Format
You can change the sample rate and bit depth of sound.
TOSHIBA Mic Effect
TOSHIBA Mic Effect
provides you with a hands-free environment for
holding mutual communication via the Internet Protocol or Local Area
Network. If you wish to communicate with someone on your computer, you
can use a messenger application. However, with such an application, you
would hear your own voice returning to you as echo during the
communication if you did not use a headset system or headphone.
TOSHIBA Mic Effect will reduce these echoes generated on your computer.
To apply the echo cancellation, follow the steps below.
1. Click the right button of a mouse on the speaker icon on the Taskbar,
and select
Playback Devices
in the sub menu.
2. On the
Playback
tab, select
Speakers
, and click
Properties
.
3. On the
Advanced
tab, select “
16 bit, 48000 Hz (DVD Quality)
” in the
pull-down menu of Default Format, and then click
OK
.
4. On the
Recording
tab, select
Microphone
, and click
Properties
.
5. On the
Advanced
tab, select “
2 channel, 16 bit, 48000 Hz (DVD
Quality)
” in the pull-down menu of the Default Format pane.
6. On the
Enhancements
tab, select the
Acoustic Echo Cancellation
check box, and click
Apply
.
Notes on Using Microphone
You can use the built-in or an external microphone that connects to the
microphone jack to record monaural sounds into your applications. It can
also be used to issue voice commands to applications that support such
functions (built-in microphone is provided with some models).
Since your computer has a microphone and speaker, "feedback" may be
heard under certain conditions. Feedback occurs when sound from the
speaker is picked up in the microphone and amplified back to the speaker,
which amplifies it again to the microphone.
This feedback occurs repeatedly and causes a very loud, high-pitched
noise. It is a common phenomenon that occurs in any sound system when
the microphone input is output to the speaker (throughput) and the speaker
volume is too loud or too close to the microphone. You can control
throughput by adjusting the volume of your speaker or through the Mute
function in the Master Volume panel. Refer to your Windows documentation
for details on using the Master Volume panel.
