Submitted by brad on Tue, 2005-09-27 16:43.
At every conference I go to, with a few rare exceptions, we always see people wasting time fiddling with computers and projectors in order to show their presentation, which is (sadly) almost always in
powerpoint. Many laptops won’t switch displays until they see a monitor on the VGA port, which makes things take longer.
So how about a wireless protocol for sending presentations from laptops to projectors or a computer connected to the projector. Over 802.11 or bluetooth, presumably.
Of course, if the presentation is powerpoint or other popular slideshow format, all this needs is a way to transmit the file, and then the control keystrokes. There are already protocols to do this for teleconferneces, where people in another city are watching the slides on their own computer, but I have not yet seen this used at a conference. There could also be a video protocol where the laptop screen is mirrored to the projector through an efficient screen transfer system. These already exist and are free (VNC, for example) but they could be improved by pre-sending the next slide, if it’s static, for instant transition. Fancy animations (which are a curse anywhere) and videos would be a bit slower but should be fine over a good network.
An authentication protocol would be needed, the speakers would get a passcode for access.
Of course, this can also be sped up if speakers are told to set up their laptop in advance, while the
prior speaker is speaking, with a good video switch that simulates a monitor so the laptop can be put into external mode. With a wireless protocol, some advance setup would be needed but it need not be on the stage.
Submitted by brad on Thu, 2005-08-25 13:03.
You are probably familiar with Google adsense, which is providing the ads you see on the right hand side of this page. Adsense code examines the text of pages, and tries to match Google adwords bids against it. The publisher of the page gets some undisclosed share of the Google revenue.
Recently adsense has been improving a lot for me, and my revenue from it per day has more than doubled, either due to better ad placement, better share or higher bids — it’s hard to say. It has gotten good enough that one can now readily see making a living as a good web writer through adsense. At an extreme example, my Copyright Myths article, which is admittedly very popular, is now generating over $250 per month in revenue. Just that one article. An author able to generate articles that popular (admittedly difficult, part of the popularity comes from having been around for decades and being linked to from many places) could make a living wage.
On one hand, Adsense seems like a great implementation of the wall that is supposed to exist between advertising and editorial. I have no idea what ads will appear, I don’t control it. I have no relationship with the advertisers, and there are so many advertisers that it would be hard for any one of them to hold sway over me as a writer.
However, there is an opposite factor. Clearly some topics are much more lucrative than others. My jokes and photos pay just a small fraction of what writing on copyright pays, because there are lots of copyright lawyers willing to bid high to advertise to people curious about that topic. My spam essays pay decently because of anti-spam companies. My DNS essays get little traffic, but when they do they get people selling domain names etc.
In the extreme, if you become the big expert on a disease like mesothelioma, the asbestos caused disorder, laywers hoping to sign up clients will pay many dollars for every click. (It was famously the most expensive word in a survey last year.)
So there is a strong push now, for a writer wanting to make a living (instead of one like me getting some extra change) to write about the very specific topics that get high adwords or overture bids.
Part of this is nothing new. In the past the way to make the most profitable magazine was to cover a topic that would attract readers that advertisers want to reach. Some general media, like newspapers, sought only to gain an audience, and advertisers would pay to reach the general audience.
But advertisers don’t want to reach a general audience, or only rarely do they wish to do so. Google has broken one of the great aphorisms of advertising, “90% of all advertising is wasted, the problem is figuring which 90%.” And from this they have a multi-billion dollar business. But how will this affect editorial down the road?
Submitted by brad on Mon, 2005-08-08 16:19.
Newspapers won’t like this idea, but the truth is that most of the funnies aren’t funny, certainly not every day. There are some talented people doing comic strips, but it’s hard to do on a 7 days a week schedule, so they are almost all inconsistent.
You can read most of the strips on the web, so the next step is to build a system where we do shared editorial on their quality. People would read the funnies and vote on them. Then, you could present a page which showed you only the ones that made a certain cut. You could tune the cut — “Show me the top 90% of Dilbert, only the top 10% of Blondie” as you like it.
And you could even ask for the top few percent of comics you don’t normally read, though of course some of the jokes only make sense to semi-regular readers, so this won’t always be a winner. But it should be often enough.
Of course, some people have to read the comics before they have been graded. And there are fans willing to do that, but if there aren’t, you can make a trading system that says to make use of the ratings you have to contribute some. (Though if you get too hardnosed about it, people would start to introduce fake ratings to game this.)
User’s ratings would not be absolute, but rather based on their past history, and where in their own spectrum of ratings for that comic a particular rating falls. So it doesn’t help that you rank every Dilbert a 10 out of 10, such scoring would be discarded. Nor can individual comic publishers bump their own ratings on an absolute level, since again it’s a percentile result — they can only promote a personal favourite at the expense of others.
This would not be so hard to code, who wants to code it?
Submitted by brad on Sun, 2005-07-17 22:52.
I wrote before on the ideal car dock for an MP3 player but the truth is we could use something even simpler sooner. On my recent trip, we brought the cassette adapter but there was no tape player in the rental car. We forgot the FM transmitter, but that’s not as good anyway.
So right away let’s see a small headphone plug on the car stereos to do a nice aux input, especially if you are taking away the tape. Duh.
But we can go beyond that with a USB jack, since all music players can plug into that though with different results. A few of them will be clever enough to draw power and recharge from it — indeed, it is time for cars to have USB jacks just for power since now my cell phones and PDA can all charge from that, and use a cigarette lighter plug with USB jack to do so — but we want something with the data.
With some music players, plug into USB and they look like a hard drive with music files on it. The stereo could be an MP3 player, but might have trouble with the DRMed music. We could also leave the MP3 player in control, but develop a protocol for it to stream digital audio to the stereo, and for the stereo to send back commands (FF/Rew, Pause, skip track etc.) to the player. Yeah, you could also do this over bluetooth but why wouldn’t you want power when in the car, so wires remain the right choice.
Perhaps down the road we might see music players splitting into two halves — drive and UI electronics/power. The drive unit, be it flash stick or hard disk, holds your music and files, and the UI unit does the rest, and can be mated with any drive, as can the computer and as can the car stereo.
Submitted by brad on Thu, 2005-06-16 23:08.
I’ve written a few times about Peerflix the P2P DVD trading system similar to some of my own ideas. After trying it for a few months, I have to report trouble.
As I feared, as a DVD drops in popularity, it means somebody will be stuck with it. I feel it should be the original contributor but in Peerflix, it’s whoever happens to have traded for it most recently. Back in April, I got in 4 DVD trades for high quality movies 1-2 years in age. In particular for Momento, Mystic River, School of Rock and A Mighty Wind. I have been slow to getting to watch these, so I’ve gotten to see just how many chances there have been to return them.
In 2 months, we’ve seen just a couple of requests for Momento and Mystic River. In all those cases, if I didn’t respond to the request within a short time, a few hours at most, somebody else would send off their copy of the disk and I would remain stuck with it. Of course since I have not yet watched Mystic River, I may have just not been motivated enough to say yes. Today I got my first request to send off A Mighty Wind and did not agree in time. I have not ever gotten a chance to send off School of Rock.
Now for “new releases” this is not the case. The DVDs I contributed that were recent and in high demand did get requested quite quickly. But the lesson quickly learned is that if you want to watch a slightly older DVD, you truly are buying it rather than borrowing it. If rapid watching is your goal, trading off a recent DVD for an older one will leave you in the lurch.
Now it’s true that at video stores, they say that only new releases really draw the volume, so this perhaps is no surprise. But it’s also not a very workable system. I was debating recommending my family in Canada join up, but with the smaller membership group there, I fear it could be even worse. The cheaper plans from Netflix or other competitors make more sense.
Update: I don’t watch DVDs very often due to my MythTV always having good HD shows in it (once you have HD it’s hard to go back to regular TV or even DVD) so I’ve seen frightening patterns. Peerflix put out a recommendation for Memento on their blog, so I now get requests for it moderately often. However, in the past 8 months, I have barely seen any requests for Mystic River, School of Rock or A Mighty Wind, all top-rated films if a few years old. And none of the couple of requests I have seen for these films have come when I was around — and I’ve only been away perhaps 15% of the time at most.
Update2: School of Rock was finally requested in December, I got the Pianist in exchange. Probably another long-term camper.
Submitted by brad on Tue, 2005-06-14 13:59.
Sunday, I was invited, along with a crowd of other local friends and bloggers, to a preview screening of the new art film “Yes” by Sally Potter. I’ll review Yes, but what was interesting was the idea of Sony Pictures doing free screenings of movies for the “blogger” demographic. As I noted earlier, I’m also in this group called the “Silicon Valley 100” where they send us free stuff in the hopes we’ll generate buzz and useful feedback. (The last few products they sent have not been exciting enough to inspire me to write about them, though.)
It makes some sense. Advance screenings to create buzz have been around for a while, and now that you can have an audience of writers whose influence goes beyond their circle of friends, they are a good target to place. Though I also went in part because it was a social event, seeing a movie with a group of folks including friends. It was arranged by Mark Pincus, who loved the movie when he saw it at Telluride and suggested the screening to Sony. Equally important was going out to a bar after the movie.
As for “Yes”, I did find it quite good. It was, however the most “arthouse” style movie I have seen in years, so I doubt it will get great commercial success. Yes is done in verse, a la Shakespeare, but with modern phrasing and perhaps a touch too much rhyme. Though the Bard never had a Scottish dishwasher apply metre as he repeated the word “motherfucker.” But it’s also a good story, with good performances and good music. It has Bergmanesque stylings, and includes a lot of “inner thoughts” voice overs, which normally turns me right off, but at least in a few places, the voice-overs work. Notably when a dying woman gets to tell her story through her thoughts even though she can’t speak them.
Of course, they have picked a terrible title for a movie if they want people to be able to find writing about it on the web. (Drupal doesn’t have explicit tagging yet, and Mark went so far as to push people to use the pre-chosen tag “yes movie” if they wrote about the film.) However, the title makes artistic sense for the film so I can’t fault it for that.
Submitted by brad on Wed, 2005-06-01 11:21.
I’m writing a larger essay on this topic, but I recently posted the following to Interesting People and it was requested to put it here. It relates to the theme of “light” DRM.
I used to wonder if you made a DRM system that was so well designed that
only a serious pirate would notice it was there, if this might be
a workable system.
But now I have come to realize that there’s one very important community
which a DRM system can’t avoid harming, and that’s the open source
community, who as a largely philanthropic effort build linux, the bsds and
much of the software that runs the internet and is thus used by everybody.
One of the pillars of the open source community, written into several
of its most common licences, is that the end user must be able to
modify the software, both for their own use and to give away to others.
Of course, most end-users don’t recompile their tools, but a sizeable
number do, and they provide innovations, fixes and improvements that
get used by all the users.
There is a fundamental incompatability between this ability to modify
and any DRM that has a software element to its enforcement. You
simply can’t have them both.
That leaves DRM where all the enforcement (ie. decryption and
display/presentation) takes place within physically secured devices.
This is not easy to do, and even if done, it bars the open source
software from any useful features that might be thought up which require
access to the media — only what the hardware permits can be done.
The end result is to largely shut open source software out of the
media playing arena, and thus, if you believe in the convergence of
media playing devices and computing devices, out of the general
purpose home computer arena.
To those who use the open source software, the trouble with this is
obvious. But in fact, all must be concerned, as the open source
software, aside from being one of the few competitors to forces like
Microsoft, is also becoming a source of significant innovation. That
old style, garage-based innovation, where a loner or small team
develop something new on the cheap which changes the world. DRM
systems can be architected to allow a Tivo, but they bar the “next Tivo”
which is a loss to all.
So the conclusion is that, as suggested, you can’t pull off the
“make everybody happy” DRM. Instead, you get DRM which mostly sits
as a barrier not to pirates or users, but to the small innovators of
the world, and what a tragedy that would be.
Submitted by brad on Mon, 2005-05-09 07:48.
I've written before about the dichotomies between serial and browseable, between writer-friendly and reader-friendly.
One idea that now seems obvious is to integrate wiki functions into a mailing list manager (particularly one that does a web interface to the mailng list.)
In particular, one should be able to "cc" a message to sections of the wiki and have it added. For example, to an FAQ section. In addition, readers of a message should be able to promote it into sections of the wiki either by clicking links in the HTML version of the message, or by forwarding the message back to some magic addresses at the mailing list manager.
Thus when sombody on a mailing list makes a useful answer to a question, it could go quickly into a wiki style knowledge base, for easier browsing and searching. Many mailing lists today allow you to search the list archives, but unless you know your vocabulary, you may not find the answer to problems you are trying to solve, even though they exist there.
Submitted by brad on Fri, 2005-05-06 03:55.
On both a personal and professional note, I am happy to report that the federal courts have unanimously ruled to strike down the FCC's broadcast flag (that's a PDF) due to our lawsuit against them.
I participated directly in this lawsuit, filing an affadavit on how, as a builder of a MythTV system and writer of software for MythTV, I would be personally harmed if the flag rule went into effect. The thrust of the case was that the FCC, which is empowered to regulated interstate communications, had no authority to regulate what goes on inside your PC. The court bought that, but we had to show that the actual plaintiffs in the case would be harmed, not simply the general public, thus the declarations by myself and various other members of EFF and other plaintiffs.
The broadcast flag was an insidious rule because, as I like to put it, it didn't prohibit Tivo from making a Tivo (as long as they got it certified as having pledged allegiance to the flag.) It stopped somebody from designing the next Tivo, the metaphorical Tivo, meaning bold new innovation in recording TV.
I would like to particularly thank Public Knowledge, which spearheaded this effort and funded most of it.
Here's an AP Interview with me on the issue.
Submitted by brad on Sun, 2005-04-17 13:20.
When people watch TV with a hard disk video recorder, they always watch the show delayed, often by hours or many days. They all watch it at a different time.
It occurs to me it would be amusing to generate a system to allow the collaborative annotation of TV programs and DVD movies using the net, and DVRs like the open source MythTV, which would be a natural initial platform. Users watching a show would be able to make comments at various points in it. Either text comments, along the lines of "Pop-up Video" or even voice comments and jokes, along the lines of "Mystery Science Theatre 3000."
And indeed, people already do this real time. Just about every popular show generates a chat-room for people who watch it live near a computer. However, these are usually quite inane as they are done in real time with no filtering.
Thanks to delayed watching, we could change that. Each suggested annotation would be uploaded quickly to a server handling the particular TV show or movie. This would come with a pseudonym for the author, which would be tied to a reputation. All annotations would be sent out for viewing by a limited audience. For low-reputation contributors, a very limited audience. If that audience hits an "approve" button on their remote when they see the annotation, it would improve the score, and more and more early watchers would get to see and approve/disaprove of the annotation.
Eventually things would build up and you would have a series of highly approved comments for those who want to see a show with comments. I expect most comments would be jokes, but some would also be pointers to useful information or reasoned criticism. Authors might indicate what their goal is so that viewers could tune what sort of annotations they want to see. Viewers could also tune a threshold for how good the annotations have to be to see them.
Authors would indicate if their pop-up should show in a particular place on the screen (so that. like pop-up video, it doesn't block things.) Some viewers, especially those with big screen TVs, would shrink the image and redirect pop-ups outside the show.
However, there are some interesting problems to solve... read more »
Submitted by brad on Thu, 2005-04-07 11:36.
Earlier I reported on Peerflix, which is implementing a P2P DVD sharing system with similarities to some of my own ideas. I have tried it out a bit now, and learned a bit more. I also have updated experiences with Peerflix.
The web site is marked beta and still very buggy, which is bad, but my first try on the service was first-rate. I mailed off my first DVD, Eternal Sunshine of the Spotless Mind, on Wednesday to somebody in San Jose (who almost surely got it today) and got the replacement for it — by strange coincidence another memory-related movie called Memento in the mail today. That is faster than most of the services, though people like Netflix could be this fast if they decided to take the same step and trust you when you said you mailed a disk, rather than waiting for it to arrive.
All this is good, but there’s still a killer flaw in the idea of actually selling the DVDs. All DVDs will have a limited lifetime of high-demand. As demand drops below supply, somebody holding the DVD at that time will get “stuck” with it, though you can fix that by being fast on the draw in agreeing to be the one to mail any new requesters that do come along. read more »
Submitted by brad on Tue, 2005-03-22 06:12.
For the past couple of years, I've been mulling over an idea for a different kind of DVD "rental" company, similar in ways to the popular NetFlix. Now I have encountered a new company called Peerflix which is doing something similar. Is it annoying or vindicating to see somebody else run with something? :-)
So instead I will comment on Peerflix, which I am going to try out, and what I planned to do differently.
The rough idea is a movie network that doesn't own the movies. The members do. The members declare what disks they have that are available to go out (key in or scan UPC codes or just put disks in drives) and, just like netflix, they also browse the list of DVDs and pick what they would like to rent. For each disk you have out, you are entitled to one in (approximately), and somebody close to you, who has the disk you want, is told to mail it to you.
Once scaled up, it's faster than netflix (the disk is mailed to you directly from the last person to have it, rather than going through the warehouse) but mainly it's vastly cheaper. In theory it could even run for free, with postage and mailers being the only cost -- plus of course the initial disks you introduce into the system. Netflix 3-at-a-time is $216/year, the one at a time is $120 per year.
There are, however, a number of interesting problems to solve in doing this, and some special factors you may not know about Netflix. read more »
Submitted by brad on Wed, 2005-02-23 06:23.
Ok, it's strange because I think one of the whole points of the hard disk video recorder / PVR is that you are not supposed to watch live TV any more, not supposed to channel surf -- but I keep coming up with ideas relating to it. Maybe I have a secret desire to surf again.
As many people know, with digital recording, the no-surf rule is enforced because it's harder to do. The digital delay introduces a long channel change delay, intolerable when combined with another delay (satellite/cable box).
Here's a surfing algorithm that could give instant channel change. Surf slightly delayed TV. It works particularly well if the box has multiple tuners.
Using the spare tuner, grab short snippets of every other show that's on right now, or at least everything in the surf list/favourite channels. Just a few seconds of each. As available, update these snippets, with focus on the adjacent channels. If the program changes, you need to grab a new snippet as you must always have the current program.
When the viewer wants to surf, surf not the current live TV but the saved snippets, which will be anwhere from a few seconds to a few minutes old. You will be able to move through them instantly, like the old instant-channel change from an analog TV. You will see the program guide info as well, but the visual clues that we draw upon in surfing will still work fine.
If the user dwells on a channel for longer than the usual surf interval, you will switch the tuner to that channel. You will need to do a nice graphic transition from the surf buffer to the live TV.
Now admittedly, that will sometimes frustrate. It may be the particular scene that attracts your interest -- the bad guy is holding a gun on the good guy, about to shoot, and suddenly it disolves to something a minute later. However, the alternative, which is what we currently get, is that you get black screen for 3 seconds, and then it shows you the later (live) scene. Instead of black screen you get some sample video from an earlier time in the show. The key thing is that the viewer should be aware they are surfing old snippets.
One could also keep snippets of varying lengths from different times, depending on the surfing speed desired. Though usually you would play the longest. You could also develop "smart snippets" which tried to grab the action after coming back from the first commercial break etc. (Problem is those happen on a lot of stations at once.) read more »
Submitted by brad on Tue, 2005-02-15 07:31.
I notice from this chart in advertising age (which requires an annoying complex if free registration form) that there's been a giant jump in the CPM (cost per thousand viewers) of a 30 second Superbowl ad. From 1968 to 1998 it hovered close to $10 in constant dollars -- or about a penny per impression.
Then there's a big jump (thanks in part to Fox and the dot-com boom) and now it's up to $25. But they're still paying, even though the $10 figure is more common for regular TV.
As I have noted elsewhere, part of the revolt against TV advertising is that it's a terrible deal for the viewer. They get a penny (2.5 cents in the superbowl) to show you an ad. So if you watch a full hour of ads (ie. almost 4 hours of TV) you get in return $1.20 worth of programming (wholesale price.) $1.20/hour is an illegally low wage. Even with superbowl ads it's still below minimum wage but we watch them because they are more entertaining.
This increase I think comes from several factors. First of all these ads have a cachet -- the fact that you advertised in the superbowl expands your reputation more than an ordinary ad does.
But mostly, because these ads have a reputation for being above average and less repetitive, many go out of their way to see them rather than go out of their way to avoid them. And that certainly seems to be worth the premium. It is another pointer to the prediction I made earlier this week that we might eventually see TV shows that demand better quality from their advertisers.
That pays off because if all the ads on a show are filtered for how useful or entertaining they are, it improves the odds the viewer will watch all of them. Google surprised everybody by demanding that its adwords customers do good ads that get clicked on. The idea of a publisher refusing an advertisers money was shocking (though it makes perfect sense here, because they are charging per click, and if you aren't getting clicks, they aren't getting good revenue from their space -- effectively enforcing a CPM while calling it pay per click.)
I keep waiting for adcritic to return using bittorrent.
Submitted by brad on Wed, 2005-02-09 08:13.
For the third year in a row, I held a "superbowl commercials" party. In this case, we used MythTV to record the game in HDTV for a while, then sat down to fast forward through the football and slow down to watch the commercials.
I've written a page about the Superbowl Commercials Party here, including fun stories from the party and a bit about the MythTV software that did the recording and playback on two different floors in HDTV.
Also included is a discussion of how the equipment I used will become illegal in just a few months, and what we're doing to try and stop that. It's an interesting lesson in how regulation can stop innovation and what's really happening in the future of TV.
Submitted by brad on Sat, 2005-01-29 14:46.
One thing I've noticed when you get a TV broadcast that has 5-channel sound, it that you get the voices on the center channel. Particularly with things like voice-overs, sportscasters etc. If you can mute the center channel, you can watch a game, for example, with no commentators.
But sometimes you do want to hear what they said, if there is something on the field you don't understand. If you have a PVR, you can rewind and turn on the center channel audio (though rarely is there a good UI to do this) but here's another idea.
If the center channel is muted, offer a button that shrinks the display and puts up the last minute or two of history of the closed captions. Of course if there are already bars on the screen use those to display this. You can read quickly (let one of the scrolling controls let you move around) and figure out what was going on, faster than you could through replaying.
Submitted by brad on Tue, 2005-01-25 17:43.
I love hard disk video recorders because they surprised me by being much more than super-fancy VCRs. They changed the nature of the way people watched TV in ways I didn't expect.
Now I've been working with MythTV which is an open source PVR. I have a new program in development, and if any of the readers out there are using MythTV I wouldn't mind some folks to test it out before I announce it to the Myth community.
This program does many things, including two things that I think could change the nature of how TV is chosen.
The system, called TVWish is in general a wishlist program. It lets you build large lists of TV you're looking to see. If the shows you want come on anywhere on your TV schedule, even years later, it will record them.
For example, I have gathered a list of hundreds of top movies, trimmed to what I have not seen and put it in my wishlist. Now if one of those movies shows up, I will see it. Reminds one of netflix perhaps.
The two big changes however are not this, though it's handy.
First, you can import your wishlist from a web URL. That lets you trust somebody else to program what TV your box will record. I call this a "critic" function because you could name the URL of a TV critic who recommends shows. I anticpate one day the same critics who get advanced tapes of shows and write newspaper columns about tonight's TV might create a list so that your box records it.
But it can mean much more than this. A "critic" can be a friend who recommends shows to you. It can be people on the east coast telling west coasters what was good in the lineup. It can be thousands of fans watching shows and rating them on their remote control, causing people to record and not record shows that night or in reruns. It can be people amalgamating the opinions of viewers and professional critics to redirect how you hear about TV.
The second element reflects something I wrote about before in my essays on the future of TV. I now call it Abridging a TV Series
Here, you take a series that is in reruns or syndication. You get a list of the episodes, ranked in order of quality. You put this list into my program and set a quality level. And you only watch the best. You skip the turkeys. Life is too short to watch bad TV. Already many TV show fan sites have episode lists with ratings, either critical or based on fan votes. I've been using these lists to manually abridge series and it's amazingly producitve. A mediocre series turns into a shorter, excellent one. read more »
Submitted by brad on Sat, 2005-01-22 08:36.
Dan Gilmor notes that he is concerned about a new program called the “Silicon Valley 100” in which a marketing company identified 100 influentical silicon valley folks with plans to give us stuff in the hope of generating buzz. Dan worries whether people will disclose they got the stuff for free as part of this venture.
I certainly never had any thought of keeping it secret, and having my name in Newsweek certainly wouldn’t make it easy to do so. Slashdot called it an “elitist club” but in fact, all it amounted to for me was getting an E-mail from Auren Hoffman asking if I could be put on the list and if I would mind being sent free stuff with no strings attached.
I actually at first wondered if it was a particularly clever phishing attempt. My brain is trained to be wary at notes from strangers saying, “We’ll send you lots of free suff, just give us your address.” :-) Back at the dawn of the internet, my e-mail address got put in a book called “E-mail addresses of the rich and famous.” I was flattered for about 10 seconds until I saw all the bizarre spam I ended up getting because of it.
But I couldn’t see any reason not to let them send me the stuff. My opinion certainly can’t be bought so easily, and most of the people on the list are well off enough that the same applies.
So while I was planning on disclosing the background — I am naturally skeptical and assume the people I talk to should be as well — I don’t even really have Dan’s reservations about those who don’t go out of their way to disclose this. As he says, the press get most of the stuff they review for free and it’s just assumed. (To the credit of his arguments, this is not true of Consumer Reports, which is indeed very high integrity.)
Will this program get us to talk about products we would not have gone out and bought on our own, or talked about if we did buy them? Quite possibly. I just don’t see it as so sinister, or novel. So, once I figured it wasn’t a phishing scheme, I said I would give it a whorl.
And oh yeah, I’m taking the toilet seat for a second bathroom, because I already have a different brand in my master bathroom, and think in general they’re cool. No idea about the one they’re sending yet. Now whether Hoffman will get people to blog about their hemorrhoid problems is a different question.
Submitted by brad on Wed, 2004-12-15 06:33.
As I continue to play with HDTV, I found I had a horrendous time getting good output from my computer running the MythTV open source PVR into my TV. DVI, the uncompressed digital standard, just wouldn't work from the video card I had to the TV. The TV has Firewire/1394, which would allow me to stream mpeg-2 to it, and that would be really great, but as yet no software supports it because few TVs have such inputs.
Here's another idea, one that reverses old thinking. The earliest VCRs did their outut on an RF modulator to channel 3, the only way to get into older TVs. Now we of course recommend non-RF methods, such as composite video, S-video or best of all component video/VGA, or in the digital realm, DVI and HDMI.
But in fact with TVs being mandated to have ATSC tuners, could it make sense to go back to RF? This gives digital decoding in the TV, in theory the highest quality if the TV has a good decoder. The cables are easy and super cheap, and carry digital video and 6 channel sound -- something even DVI doesn't do. You can run them as long as you want.
Plus, you can have tons of multiple inputs, just on different channels. Put your cable box on channel 3, your PVR on channel 4, DVD player on channel 5 and so on -- no need for the plethora of inputs and mass of cables.
(Don't get me wrong, I think a single ethernet jack would be better than any of these methods, but the TVs don't have them and they do have the tuners now.)
There is one big issue, however, which is on-screen display and comptuer generated menus. The RF sends a compressed mpeg stream. On the
surface, that's great because the boxes handling the video can be slow and
cheap -- they are just slinging bits they don't understand. But once you want
to overlay text on the video, you suddenly have to decode the stream (hard enough) and then re-encode it, which is close to impossible with today's hardware. On the other hand, it should be possible to do non-transparent overlays, where you take over a region of the screen (perhaps the bottom is easiest) and replace it with your generated text.
The ideal solution to this would be to modify the protocols to allow sending a second stream to be overlayed, with an alpha channel, on the main one. This is true no matter how you send compressed video -- RF, ethernet or firewire. However, we don't get to change the protocols, the idea here is to make use of something already out there.
Generating Mpeg from computer menu displays on the other hand is something that should be within the capabilities of today's CPUs. They can do it at smaller resolution (720x480 DVD res is fine) but more to the point unless there are fancy animations, it's static and machine generated and easy to set up for quick conversion.
There's no encryption, which might cause pressure to balk at this but it has a lot of advantages worth considering as kludges go.
Submitted by brad on Thu, 2004-12-02 07:25.
I have been building an HDTV PVR with MythTV and the pcHDTV tuner
card. It's been a major adventure, not yet ready for prime time, but
it's lead me to have some thoughts about things you want to think about
in a PVR that particularly relate to HDTV.
Suggesting new features is of course a somewhat futile activity. In open
source, the usually and appropriate answer is "why don't you go code up
this feature and add it?" In commercial products, most people feel
even the Tivo is too complex and they are correctly loathe to add
new features that complicate the user interface. So I make a priority
note on all of these.
If you are not familiar with certain linux video issues, some of this
will sound like gibberish. read more »