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ViewCast
Announces Support for Real 10 Platform
Osprey
Video Capture Cards provide compatibility
and Niagara Streaming Systems to include
Real 10
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RealNetworks®,
Inc. recently unveiled the new Real
10 platform for creating, protecting and playing
digital audio and video on PCs, consumer electronics
devices and mobile devices. Offering improvements
in audio and video compression, ability to
deliver secure media to both PC and portable
devices, and support for standards-based technology,
the Real 10 platform enables consumers, content
owners, and consumer electronics manufacturers
to create and enjoy a new generation of premium
digital media services.
The
Real 10 platform includes RealPlayer 10 with
a built-in music store, RealAudio® 10,
RealVideo® 10, Helix Producer 10
and Helix DRM 10. RealAudio 10 includes the
standards-based AAC codec for high fidelity
consumer music services, lossless compression
technology for professional and archiving
services, and discrete multichannel audio
for true 5.1 audio experiences. Rights holders
now can combine RealAudio10 Multichannel with
RealVideo 10 for true state-of-the-art digital
cinema. RealProducer®10 enables content
owners to encode media into RealAudio 10 and
RealVideo 10.
ViewCast
is very excited about the next generation
RealAudio 10 and RealVideo 10 formats. Users
of our award-winning Osprey capture cards
have known for years that 'Osprey' and 'RealVideo'
go hand-in-hand as synonymous terms for the
best quality video in the industry. We're
proud to provide support for RealAudio 10
and RealVideo 10 in our Osprey capture cards.
Our Niagara Streaming Systems will include
the Real 10 platform within 30 days of product
release from Real Networks.
For
more information about Osprey Video Capture
Cards, click here.
Click
here for additional information about Niagara
Streaming Systems.
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Osprey
Video Capture Cards Now Certified
on HP Workstations
Certification
Ensures Reliability and Compatibility
with HP Computing Platforms |
You
are under extreme pressure to turn out quality
content and meet strict deadlines. So you
don't have time to troubleshoot software
and hardware compatibility issues. ViewCast
understand these pressures and we want to
ensure you worry-free experience when using
Osprey Video capture cards with industry-recognized
workstations.
ViewCast
has worked closely with HP to insure that
Osprey Video cards are perfectly compatible
to provide professional capture capabilities
needed by content artists and producers.
The Osprey-230 and the Osprey-560 have been
certified by HP on their 4000, 6000, and
8000 HP Workstations. So when you use high-performance
Osprey cards with these HP workstations,
you can rest assured you have the "best
of breed" capture capabilities with
reliable personal computing systems designed
to tackle any video project.
Click
here for more information on the
Osprey-230
Click
here for more information on the
Osprey-560
When
Steve Kirschner decided to turn a home into a state-of-the-art
recording studio and make The Guest House Live "the
first recording studio and jam space on the Internet
that gives the world a 24/7 backstage pass,"
he knew it was going to need streaming technology
of exacting specifications. Specifications, as it
turned out, that only hardware and software from
ViewCast - in combination with six custom programs
developed by LiveStreamWorks - could provide.
To
offer viewers a unique look at new artists and a
bird's-eye view of the music and artistic process,
the innovative Web site would require not only high-quality
streaming video, but audiophile-quality streaming
audio as well. And with seven live cameras scattered
about the house-turned-recording studio (expanding
eventually to 16 cameras), some type of streaming/encoding
management software tool would be needed as well.
"The
first question," said Kirschner, "was
how do we get this out to the world sounding as
good as possible?"
Kirschner
had ambitious plans for The Guest House Live. He
planned to broadcast live shows, rehearsals, recording
sessions and jam sessions by up-and-coming bands
and well-known musical acts. He wanted both live
and archived content available on the site at all
times.
"We
decided on streaming media, and then the question
became what technology do we use," said Kirschner.
"Our technical team, led by Patrick Arkins,
did much of their research online and kept coming
across ViewCast's Osprey cards. They were a logical
choice in light of their flexibility and cost."
Working
with ViewCast, Arkins was able to settle largely
on Osprey Video capture cards due to their pro-geared
audio breakout box for video and audio inputs -
including adding XLR connectors which provides balanced
stereo audio inputs.
Delivering
the content to users at a variety of bandwidths
presented additional challenges for the Guest House.
"The
thing about multi-bit rate streams is that, while
you can specify the rates for video and deliver
video appropriate to dial-up or faster connection
speeds, you can't specify different audio rates
for each stream," said Kirschner. We were already
treating the audio with specialized hardware so
listeners had the best possible experience, but
we wanted to provide that to both dial-up and broadband
users."
To
accomplish this, Kirschner said they were looking
at doubling their hardware investment - and then
some.
"We
were frustrated that we were going to have to double
the number of cards, PCs and number of racks. We
were looking at tens of thousands of additional
dollars. In order to fit all that additional equipment
into the house, we were also going to have to knock
out a wall. Basically, we were looking at multiplying
our technical issues by two," said Kirschner.
And
then ViewCast released its SimulStream software.
The cost comparison was easy.
"Now
we're back to using six computers and I don't have
to knock out a wall," said Kirschner. "We
purchased SimulStream, put in the key, and it ran
with no problems."
Content
creators of streaming media typically encode several
different streams of the same media in order to
provide the best possible viewing experience over
both modems and broadband connections. Different
formats (e.g. RealMedia, Windows Media) and bitrates
(dial-up, broadband) are often provided to address
user's preferences. With existing capabilities,
content creators repeat the encoding task for each
file, or use multiple cards in parallel to speed
up the process. With SimulStream, multiple encoding
tasks can be launched simultaneously. By taking
what used to be four-to-six separate encoding tasks
and making it a single session, SimulStream reduces
encoding time up to 83 percent while greatly improving
the video and audio on the resulting streams.
In
addition to solving their immediate audio challenges,
SimulStream solved some unforeseen problems. Some
rooms had multiple cameras with multiple audio feeds.
"The audio had to be able to handle everything
from acoustic to wailing electric guitars. When
you have that kind of range, it's going to need
some tweaking. SimulStream simplifies this by allowing
us to run one audio source for three cameras,"
said Arkins.
Osprey
SimulStream also increases the physical density
of encoding tasks for web broadcasters. Other companies
provide systems-only offerings limited to four streams
per system, while the ViewCast Osprey SimulStream
with a single Osprey Video card allows an infinite
number of streams - limited only by the size of
the system's CPU capabilities and specific encoding
tasks. This allows previously unattainable encoder
density for professional and large-scale webcasting
applications
"We
couldn't achieve the audio experience we're currently
achieving for broadband through dial-up without
SimulStream - or additional computers. It's meant
half the hardware investment, half the management
headaches and half the supplemental software investment,"
said Kirschner.
For
more information about SimulStream, click here.
SimulStream
is also part of the Niagara Streaming Systems. Click
here to read more about our turnkey video capture
and streaming systems.
VFW
or WDM drivers,
which should I use?
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There
have been several application programming interfaces
(APIs) and several device driver models developed
by Microsoft during the evolution of Windows
operating systems. Microsoft has attempted to
maintain compatibility where possible, but as
video and other media became more advanced the
need to support additional features makes maintaining
compatibility difficult.
Today
there is no single capture device driver acceptable
for all Windows versions. However, application
software that needs to interact with ViewCast's
capture cards can access capture device features
via two application interfaces common to all
Windows versions: the "original" Microsoft
Video for Windows (VfW) and Microsoft's DirectShow
environment. DirectShow is the high-level name
for a group of Windows Driver Model (WDM) driver
architecture definitions and practices that
define how multimedia devices communicate.
ViewCast
offers VfW capture card drivers for all current
and recent models of Osprey® capture cards.
In addition, ViewCast has developed WDM drivers
for selected Osprey cards typically used in
high-end video capture applications that can
take advantage of the advanced features supported
in Microsoft's DirectShow media environment.
So,
how do you know which drivers to choose?
As
a general rule, the ViewCast WDM driver should
be selected and installed wherever possible.
DirectShow has built in support for older software
applications written for Video for Windows via
special mechanisms within Windows that essentially
emulate the older VfW function calls. In rare
cases the "emulation" does not produce
identical results and the application may not
perform as expected. In these cases, users may
wish to install the older Osprey VfW drivers
to see if that corrects the problem. Most software
applications written explicitly for Windows
2000 or Windows XP use the DirectShow models
and should work correctly with the Osprey WDM
drivers.
If
you have questions about the ViewCast VfW and
WDM drivers for your Osprey card, please contact
[email protected].
You
can also get assistance from other Osprey Video
users by posting a message on the ViewCast Discussion
Forum at http://forum.viewcast.com.