Beyond TV 3.5 - Adding Multi-Tuner Support, a Quick Beta Look
by Andrew Ku on August 24, 2004 12:33 AM EST- Posted in
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Final Words
Things are going as planned according to SnapStream, with the upcoming Beyond Media and Beyond TV 3.5 product launches. Assuming all goes well, the HTPC community should be able to expect a second substitute for MCE: PVR and multimedia functions, at least before the end of September.Beyond TV 3.5 adds more than just multi-tuner support of course, and we will touch more on that when the product hits the market. Our first glimpse of Beyond TV 3.5 is very encouraging, but we would like to see a few additional options, particularly relating to multi-tuner systems. Ideally, you should be able to set which channels you want to tie together. A simple screen like this would do the trick:
SnapStream's logic so far has been that you would likely want to record on cable, rather than antenna, if you were to force tie channels that don't share channel number and may or may not share station name together, and that is why they keep them separate. But, SnapStream has already implemented automatic priority management for channels that do share the same number and station name (cable sources go first, then antenna if nothing else is available).
Based on our latest discussions with SnapStream, their main issue with tying channels together was that the user may tie incorrect channels together, thus opening a whole new can of worms for tech support. Plus, one of SnapStream's biggest selling points has been that BTV is easy to use, which isn't to say that they are sacrificing the enthusiast crowd. A possible compromise to our recommendation is to tie together channels based on their call signs (aka station name, different from channel name), so that the user has nothing to worry about.
List of channel names with their call signs in Beyond TV 3.5 beta's web admin
Click to enlarge.
We see manual tying channels together as a benefit, since it gives users further control if desired. If you don't want to tie channels together, then you don't have to. In our case, we could tie channel 3 on cable with channel 32 on antenna - both are Fox. The only difference would probably be commercials and maybe "breaking news". While there could be conflicting EPG data, it likely wouldn't be unless you tied together two channel numbers that aren't really the same; even so, the cable EPG data should take precedence.
For those who haven't bought either Beyond TV or SageTV and are on a HTPC budget, we would have to say: hold off making that decision till Beyond TV 3.5 comes out. The way the two companies have tiered their pricing system will likely appeal to certain people, at least from the way we understand it. SnapStream, for example, will have a general price tag (it will stay at $69.99 for CD-ROM but the download price will be changed to match the shipped CD-ROM) for Beyond TV 3.5, which will come with the ability to have a two-tuner configuration. Each additional tuner will require an additional "tuner" license key, which is an entirely different key from the key for the software itself. By contrast, SageTV 2.0's higher base price doesn't set a limit on the number of configurable TV tuners. However, just like SageTV, you have to pay for each client that you plan on running Beyond TV Link - Update: $29.99 (No additional cost IE streaming live tv is not available if you have any hardware encoding TV cards in the system; it is all or nothing.)
As it stands, Beyond TV 3.5 looks to be a bit more than what a typical upgrade might entail, and should make things interesting when it actually hits the market.
For your information, we will have another look at Beyond TV 3.5 once it goes gold, to look at some of the finer details of the software. This will include a look into 802.11b and 802.11g based BTV HTPC network. However, we can already say that high quality settings work better with 802.11g.
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Filibuster - Wednesday, August 25, 2004 - link
In a PVR250 card you cannot turn off the hardware compression...the card basically does all output through the mpeg encoder.With TV Link (network client) you can watch hardware encoded mpeg (live or recorded) via a lan, but not over the internet. It works much better than the web based streamer too.
Unfortunatly that takes out one thing important to some people. :)
AndrewKu - Tuesday, August 24, 2004 - link
#5 - It was suppose to be within a week. But it looks like SnapStream has bumped the date to early Sept.Btw, a slight clarification, when I mentioned that conflict management is not on the client side that was relating to the time/clock issue between the server and the client. When you schedule a recording that creates a conflict, you still need to perform conflict management, even on the client side.
ViRGE - Tuesday, August 24, 2004 - link
There are 2 reasons(I know of) why they can't really stream the MPEG2 stream; it's bandwidth intensive(up to 12Mb/sec), and it requires a decoder license. Even transcoding the stream isn't very feesable, since it would require decoding the MPEG2 stream, then encoding in WMV, which may be difficult to do in real time. A seperate program is also required, and likely a specialized decoder, since by default, I don't believe that WMP knows how to deal with a streaming MPEG2 file anyhow, which may also be a problem with the codec.glennpratt - Tuesday, August 24, 2004 - link
Also, they don't have to use the Hardware Encoding features of the card, you should be able to turn it off.I don't know why they can't stream hardware MPEG2 encoding... I guess that would be a completely different way to streaming as opposed to the software encoder. MCE requires hardware encoding and you can just start playing another program on another MCE or PC while it's recording. Not exactly streaming...
Night201 - Tuesday, August 24, 2004 - link
Any idea of a timeframe of when this is coming out? Sept? Oct?johnsonx - Tuesday, August 24, 2004 - link
In a multi-tuner setup, I'm guessing you have to use the same encoding method for both cards; the hardware cards only do MPEG-2, and MPEG-2 is the one you can't stream.That's just my guess; I'm not at all sure.
Resh - Tuesday, August 24, 2004 - link
I really wish they could find a way to allow streaming over networks if at least one of the tuner cards is a software encoder. For example, one could have a PVR-250 and an ATI TV-Wonder, with the latter being used to stream over the network.No idea why they haven't done this, but if it is a technical possibility, I wish they would do it.
Another nicety would be the ability to add program info to edited files (e.g., after removing commercials, we could add the air date, channel, and synopsis).
Can't wait for the list be folders option.
reboos - Tuesday, August 24, 2004 - link
MythTV!Rapacious - Tuesday, August 24, 2004 - link