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95
THE SOUND
APPROACH
The approach to audio differs depending on whether you are in a
mobile environment or you are interfacing an entertainment PC to a
TV or an A/V receiver.
With laptops in a mobile situation, you have three basic choices:
1) you can use the laptop's internal speakers, 2) you can attach
external desktop-speakers, or 3) you can listen on headphones.
In most cases, the audio system in laptop PCs provides
reasonable performance for options 2 or 3. However, for more
critical listening, you may find that the internal sound device
is too noisy. Especially with headphones, you may hear
objectionable hiss, clicks and pops. This may occur since
there can be many high-speed digital signals flying around
inside the case. If this does happen you may want to
consider a high quality PC Card soundcard.
With laptops in a mobile
situation, you have three basic
choices:
ONE:
You can use the
laptop's internal speakers,
TWO:
You can attach
external desktop
speakers, or
THREE:
You can listen
on headphones.
LAPTOP SOUND
OPTIONS
To take audio to the next level, you should consider advanced
Of course, this only solves the noise issue.
This is soon to be a standard offering on PC's from major manufacturers. Additionally, SRS technology is available now as
In the home environment, with audio processing solutions such as SRS Premium Sound, you can
radically improve the sound from your laptop's speakers.
SRS Premium Sound can provide the ability to
render a full surround field from the front so that rear speakers and wiring are not necessary. SRS Premium
Sound also pumps powerful bass to any headphone or desktop speakers and compensates for some of the
losses inherent in the audio recording process. What is more, you can customize your audio experience to
make music, videos and games sound the way you want them to sound.
can create an excellent multichannel surround image over a 5.1 speaker system from two channel
source material, greatly enhancing the enjoyment of stereo music sources, such as the multitude
of songs stored on your PC's hard drive.
Back home, if you are interfacing your
PC to your TV, you can either use the
analog audio output with VGA video, or
HDMI which, as mentioned previously,
also carries high quality digital audio.
Of the two, HDMI is preferred because
the digital audio transmitted over the
interface is immune to the types of
noise problems mentioned earlier.
Either way, advanced audio
processing like that mentioned
above can significantly improve
the audio experience from the
TV itself.
Imagine hearing immersive surround
sound directly from your TV or getting
powerful bass from those small built-
in speakers.
SRS processing can also
improve the ability to hear and
understand dialog.
Finally, if you are planning to
integrate your PC with an A/V receiver,
the best interface choice is either
HDMI or SP/DIF. SP/DIF is the coaxial
or optical digital audio interface
standard that most everyone is familiar
with as it is most commonly used when
connecting DVD players and set-top
boxes. This interface avoids noise
issues and can transfer multichannel
formats as well as standard stereo to
the A/V device. HDMI is even better
because it can support the new high
performance lossless audio standards
available from sources such as Blu-Ray
discs. It can also support multichannel
uncompressed digital audio, so it is
virtually future proof.
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