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Satellite R10 4-30
Operating Basics
Sound System
Using the microphone
Your computer has two built-in microphones that can be used to record
monaural sounds into your applications. They can also be used to issue
voice commands to applications that support such functions.
Since your computer has built-in microphones and speakers, “howling” may
be heard under certain conditions. Howling occurs when sound from the
speakers is picked up in the microphones and amplified back to the
speakers, which amplifies it again to the microphones.
This howling occurs repeatedly and causes a very loud, high-pitched noise.
It is a common phenomenon that occurs in any sound system when
microphone input is output to a 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 speakers or through the Mute
function.
To adjust the volume or activate Mute, click start, point to All Programs,
point to Accessories, point to Entertainment and click Volume Control.
In the Volume Control panel, you can use the slide bars to adjust the
volume level or click Mute at the bottom of the panel.
SoundMAX control panel
The SoundMAX control panel lets you control additional functions for the
Microphone Enhancement and Audio Power Management. To launch the
SoundMAX Control Panel, follow the steps below.
1. Click start and click Control Panel.
2. If you are viewing the Control Panel in Category View, click on Switch
to Classic View.
3. Double-click the SoundMAX icon.
The Microphone Setup allows you to optimize the microphone input
settings for your particular configuration. Choose Standard Microphone if
you have an ordinary desktop microphone. Choose Headset if you have a
wearable microphone that is positioned directly in front of your mouth.
You can launch the Setup Wizard from the Control Panel to help you to
automatically set proper microphone input volumes and ensure that your
voice input(s) are working correctly. As you speak into the microphone, the
Sound Meter indicates the audio signal that your PC is receiving.
The Noise Reduction enhancement (Microphone Enhancements) helps to
eliminate ambient noise from the voice input signal to provide a clean and
clear signal to applications. This feature can be used with any microphone.
The audio controller can be powered down when the audio function is idle.
To enable the Audio Power Management, follow the steps below.
1. Click the Power Management tab.
2. Select the Normal Power Savings in the Power Mode pull-down list.