Toshiba PORTEGE R700 - Manual (Page 111)

Environment - simulates reverberations of sound for familiar
environments around us. You can select an existing preset in the
menu.
Equalizer - raises or lowers a frequency of sound to simulate a
popular genre of music. You can select an existing preset in the menu.
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
PORTÉGÉ R700 / Satellite R630
User's Manual 4-31