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Should The Human Brain Retire?: We know that we cannot win forever. We know that machines will continue to improve. So why don't we let the human brain retire gracefully now, with honors?
Mac to Mac voice calls may be in our
future—but so is a reliable version of this software.
Although
I appreciate its integration with Address Book, I've never thought highly of
iChat, Apple's built-on-AOL version of instant messaging, which was introduced
to fill a void that didn't exist. New versions of AOL Instant Messenger
addressed the same buddy list, performed more reliably, and arrived more
frequently. Worse, iChat's early versions dropped even broadband connections
without warning.
But after yesterday's
WWDC announcement that iChat is available in a new beta
version—iChat AV—that supports Mac to Mac audio and video
conferencing, I decided to give the software a second chance. The beta
designation proved accurate; yet I also experienced the incredible potential of
this conferencing software.
First, the
specifications: iChat AV still transmits text messages over the AOL network from
any Jaguar equipped
Macintosh. For audio, you'll need Mac OS X 10.2.5 or later, a G3 processor or
better, and a 56k connection. (Apple claims you should also use an external
microphone but the internal microphone on a friend's PowerBook worked fine).
For video, Apple recommends a G3 600 Mhz or faster processor, a broadband
internet connection, and an external
microphone.
iChat AV can only talk to,
and video conference with, Macintosh users who also have iChat AV installed. No
PC to PC communications are possible—other than text messaging—even
with PC owners using a version of AOL Instant Messenger that supports voice chat
capabilities. I love my fellow Mac enthusiasts, but we occupy a small share of
the computing universe. Unless Apple's audio software uses wholly incompatible
voice communications technologies, iChat AV's inability to talk to PCs seems
like a major design
flaw.
Audio
Apple's
expertise at designing clean, easy to understand user interfaces really shows in
iChat AV. Once the software is installed. a green telephone icon appears next
to the names of users in your buddy list who are also running iChat AV. In
theory, initiating a voice call to such users is as simple as double clicking
either their corresponding green icons or a gray telephone button embedded in
the buddy list window. However, in practice, iChat AV required at least seven
attempts to successfully negotiate an audio connection between my friend Chrys, who uses a broadband
connection in Los Angeles, and my WiFi and broadband-equipped TiBook in San
Francisco. Initiating a connection proved difficult with our firewalls turned
on and turned off, with external microphones plugged in and removed, and even
after we both quit and restarted iChat AV.
I guess that's why they call it beta
software.
A new "Audio" menu in the iChat
AV application contains a helpful-sounding option called "Connection
Doctor"—but unfortunately, this doctor is a quack because Connection
Doctor monitors the throughput of an audio connection but offers no help
in diagnosing connection problems. Perhaps we'll see more functionality
here—or a new, more appropriate name for this feature—in the final
version of iChat AV.
Now for the good
news: Once we established an audio connection through the seemingly random
largesse of the Macintosh gods, it proved crystal clear and rock solid. Audio
quality was better than a cell phone, better than Nikotel's Mac2Phone, better
than any comparable PC product that I have used including AOL Instant Messenger
and Yahoo! Messenger. We're talking top of the line PC to PC audio. Better
still, over our broadband connections and 500 mile distance we experienced no
noticeable latency between the time one party spoke and the time the other party
heard what was said, making iChat AV a viable alternative to
telephony.
Chrys had occasional trouble
hearing me clearly through her TiBook's internal speaker, but I equipped my
PowerBook with a noise-canceling Plantronics headset and never had trouble
hearing her, even though she relied entirely upon an internal microphone. As
with other processor-dependent applications of this kind, audio quality suffered
slightly if one or both parties surfed the web or typed text messages or ran
multiple background applications while talking. But iChat AV's performance
proved above-average in this
department.
Chrys and I lacked a properly
equipped third party and could not test whether iChat AV can presently initiate
voice conferences between three or more parties—but I doubt it. The audio
interface provided no obvious interface for establishing multiple
connections.
Total audio test time: 1.5
hours. Overall grade for ease of use: A-, for
ease of connection: C to C-, for call quality:
A.
Video
We
could not evaluate iChat AV's video capabilities because we do not have the
requisite FireWire-equipped video cameras, but the functionality sounds
impressive and the New York Times' David Pogue agrees.
Apple promises full-screen, full-motion video at up to 30 frames per second,
which is better than Super
Webcam on Yahoo! Messenger for Windows. Some Macintosh users have
complained that Apple should also have supported USB webcams in iChat
AV—and this is a drawback to the current architecture—but the high
throughput rates promised by iChat AV demand faster cameras and the faster
camera connections permitted by
FireWire.
FireWire
cameras are expensive so Apple tried to fill the gap yesterday by also
introducing the iSight
(shown above)—an autofocusing, F/2.8 FireWire camera that clips to the top
of a laptop or flat panel iMac and can deliver up to 30 framers per second in
24-bit color. At $149, iSight won't be an impulse buy for consumers or for
educators, but perhaps—like the Airport card before it—we can look
forward to price drops as competitors scramble to produce comparable
devices.
iChat AV's beta version will
expire on December 31, 2003, at which point the software will cost approximately
$30 for use with Jaguar. iChat AV is currently scheduled for release as part of
the $129 Mac OS X Panther
upgrade.
Updates:
New software is available which claims
to enable USB webcams with iChat AV. To download it, click
here.