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HDHomeRun - Dual ATSC or QAM to Ethernet Box - Page 59

post #1741 of 1962
Has anyone installed the latest firmware? (8/30)

Did it fix or break anything?
post #1742 of 1962
I've been running it for a day or two. No noticeable change. I do strictly OTA in case that matters.
post #1743 of 1962
Can anybody provide some tips on how to set up QoS to prioritize network traffic from the HDHR?

I have all my computers (2 HTPCs, Windows 7 + 1 regular multi-use computer) on a gigabit switch, which is uplinked to a 100 Mbps router. The HDHR is plugged into the gigabit switch as well. Firewall is turned off on all computers.

For the most part, I love the HDHR. However, if I start a large file transfer between the computer and one of the HTPCs, video reception from the HDHR starts to pixelate, and audio gets dropped.

I imagine this simply requires me to give priority to traffic from the HDHR. I'm familiar with setting up QoS on the router for outgoing traffic, but I have no idea how to do it locally within the LAN.

Thanks!
post #1744 of 1962
Which router do you have?
post #1745 of 1962
I have a Linksys running Tomato.
post #1746 of 1962
I got some excellent support from the HDHR forum.

I had run the network loss test before from their troubleshooting steps (when I first installed HDHomeRun) with no issues. Well, I ran it again and this time there were lots of packet drops. It turns out my network driver was "updated" (perhaps Windows Update?). Re-installing the latest Realtek NIC driver from their website fixed my network issues.
post #1747 of 1962
I'm considering getting an HDHomerun. While I'd ultimately be using it for a more typical setup, initially I'd like to use it solely to record one OTA HD program to my computer hard drive at a time (without viewing it). I'd then output the video file to an external storage device for playback on another machine.

For the limited purpose of capturing the stream coming off an HDHomerun, could I use a badly-outdated PC? I have an extra PC lying around that I purchased back in 2002 - 1.7ghz P3 processor, 512mb ram, 128mb nVidia video card. The reason I am asking is because I have previously used this PC to capture HD video off my HDV camcorder via firewire. The HDV stream comes in at 25mbps and this computer had no problems recording it to the hard drive perfectly every time. HD playback performance on this PC was horrible and I realize it's not going to be able to playback streams from a HDHomerun. However, is there any reason my old spare PC couldn't record the stream coming off the HDHomerun? Isn't a single HD stream from the HDHomerun (either ASTC or QAM) going to be at a lower bitrate than the 25mbps HDV stream I was successfully capturing?
post #1748 of 1962
Why don't you just record the TV on the machine which you intend to play it back? Your plan sounds wildly over complicated.
post #1749 of 1962
I just installed my first HD Home run and it is working great. Currently using Vista media center. I'm having problems linking the QAM channels with their correct data.

The instructions on silicon dust's website say to edit all of the channel names within the HD HomeRun setup tool, and then run the media center scan. Everything looks fine in the HD Homerun gui, but media center doesn't seem to use this.

Is their any significance to the QAM channels that HDHomerun finds doing its own search as opposed to the media center search ?
post #1750 of 1962
I think my lineup ID was set wrong in the HD Homerun app.
post #1751 of 1962
Crap, my HDHR has been collecting dust ever since I bought it... same as my new HTPC.

Well, most of this was due to the lack of good commercial skipping and waiting for Win7.

@jsirbak
That old PC should be able to record the streams just fine.
In fact, a while back, I tested my HDHR using Win7 RC running in a VM on my laptop and connecting to it through an extender.
I worked just fine.
post #1752 of 1962
Quote:
Originally Posted by spectrumbx View Post

Crap, my HDHR has been collecting dust ever since I bought it... same as my new HTPC.

Well, most of this was due to the lack of good commercial skipping and waiting for Win7.

I use my HDHR with Win7 RC and it's been awesome. Commercial skipping also works using DVRMSToolbox, but I just don't find it that big a hassle to FF.

Why wait any longer?
post #1753 of 1962
Quote:
Originally Posted by jsirbak View Post

I'm considering getting an HDHomerun. While I'd ultimately be using it for a more typical setup, initially I'd like to use it solely to record one OTA HD program to my computer hard drive at a time (without viewing it). I'd then output the video file to an external storage device for playback on another machine.

For the limited purpose of capturing the stream coming off an HDHomerun, could I use a badly-outdated PC? I have an extra PC lying around that I purchased back in 2002 - 1.7ghz P3 processor, 512mb ram, 128mb nVidia video card.

The biggest bottleneck I've found is not the overall speed of the computer, which should be fine in your case, but whether it can service the ethernet port fast enough not to lose any packets. The HDHR uses UDP, which means that lost packets are not resent. That results in glitches in the recordings. The SiliconDust FAQ has some tips on things to tweak to minimize packet loss. Certain firewalls and routers can also slow things down too much at least momentarily. Also, while 100 Mbps Ethernet is more than fast enough for 1 or even 2 HDHRs (that's 4 tuners), it could get bogged down if you're tranferring large files simultaneously.

On my system (1.8 GHz, single core) I get good recordings except when the computer gets distracted by my starting certain apps (it's fine once they're running) or when Windows decides it's time to do something else in background. The tweaks helped some, and setting HDHR_Config.exe's priority to Real Time helped even more. I use a free utility called Process Lasso to set the priority whenever HDHR_Config starts up.

Since you're only interested in recording on that PC, you might want to take a look at CW_EPG, which is great for scheduling repeated events such as series. It's free but requires a $20/year subscription to Schedules Direct for program listings.
post #1754 of 1962
Quote:
Originally Posted by tsanga View Post

I use my HDHR with Win7 RC and it's been awesome. Commercial skipping also works using DVRMSToolbox, but I just don't find it that big a hassle to FF.

Why wait any longer?

I just can't stand commercials... at all.

In the Ivory Coast, where I am originally from, commercials are shown in between shows and not during.
I just can't adapt to having commercials during shows now.

I just saw that ShowAnalyzer 1.0 is out and supports commercial skipping in Win7.
It was getting about time.
post #1755 of 1962
comskip is also working for me, but for you perhaps you prefer the higher reliability of ShowAnalyzer.
post #1756 of 1962
I have a Vista MCE set up in my office and use it as a DVR for OTA content. I have an Ethernet run to my den and watch content on my Sammy LCD via a Sammy extender wired to the Ethernet run (through a DLink switch) that then connects to the office PC through its router. Works great except I'm limited to one show in a time slot.
Sooo . . . my questions are about how an HDHR would fit in two possible configurations:
1) Put it with the PC in the office. Will Vista MCE then be able to record two OTA shows at once?
2) Attach it to the router in the office and set up a dedicated HTPC next to the LCD, wired to the Ethernet run. Will Vista MCE then be able to record two OTA shows at once on that HTPC? Or would I have to record one on the office PC and the other on the den HTPC?
Thanks for any advice on this.
post #1757 of 1962
You should be able to record 2 shows with the HDHomeRun in either configuration. Each tuner is independent, so you can use 1 on each PC or 2 on the same PC. If you use the HDHomeRun with multiple PCs and one tries to use a tuner that's already in use by another PC, the driver will automatically switch to the other tuner.

Jason
Silicondust Support
post #1758 of 1962
Thanks Jason. Just so I understand . . . will the drivers for the HDHR pick up the instructions from my existing WMC set up? I currently use Vista WMC with the one tuner that can pre-installed on my Dell PC. I just click on a program listed in the Guide in WMC that I want recorded, and the tuner just seems to take direction from WMC. I never had to configure the tuner. Is this the same with HDHR, or, on installing HDHR, do I need to do something more to cause it to do whatever WMC requires to get the signal needed for a particular recording -- and if so what's involved? And finally, are the two tuners able to share my existing antenna or do I need to go with a splitter or two antennae? I have found ATSC to be very touch to splitters, extensions, etc., so if there's a way to go from antenna to tuner directly via the shortest route, that seems to be much preferable. Thanks again.
post #1759 of 1962
Tsonga asked his question about QOS and the HDHomerun at the SiliconDust forums and got a great answer that I was looking for:
http://www.silicondust.com/forum/viewtopic.php?t=5877

I never had this network throttling problem with Vista, but the same machine with Windows 7 saw pixelated recordings and live tv. Once I made the change in the registry concerning the network throttling on that network adaptor, all issues with the HDHR went away.


To answer Smarti03's question... yes you will need to setup the HDHR first before you configure VMC. Since you will be using the HDHR as a ATSC tuner, then there is very little to setup on the HDHR software's side.

As for your antenna question, you can use the same antenna for all your tuner cards/devices. But I would get a powered antenna amplifier/splitter. You can usually get a 4 port amplifier/splitter for about $20-$30 at retail stores like Best Buy or even Lowe's in their antenna/electrical department. This will save you some headache, as each time you split the signal coming from your antenna, the signal power (db) decreases a bit. The amplifier will overcome this deficiency and provide full signal power (for better or for worse) to all your tuner cards.

I say for better or for worse, because if your antenna isn't getting a good signal to begin with... the amplifier is just going to be reproducing that bad signal to each tuner.
post #1760 of 1962
Quote:
Originally Posted by smarti03 View Post

Thanks Jason. Just so I understand . . . will the drivers for the HDHR pick up the instructions from my existing WMC set up? I currently use Vista WMC with the one tuner that can pre-installed on my Dell PC. I just click on a program listed in the Guide in WMC that I want recorded, and the tuner just seems to take direction from WMC. I never had to configure the tuner. Is this the same with HDHR, or, on installing HDHR, do I need to do something more to cause it to do whatever WMC requires to get the signal needed for a particular recording -- and if so what's involved? And finally, are the two tuners able to share my existing antenna or do I need to go with a splitter or two antennae? I have found ATSC to be very touch to splitters, extensions, etc., so if there's a way to go from antenna to tuner directly via the shortest route, that seems to be much preferable. Thanks again.

You will need to go through the WMC TV Signal setup process again for it to pick up the new tuners. See the instructions at http://www.silicondust.com/hdhomerun..._mce2005_vista. Once that's done, WMC will automatically use all tuners as needed to watch/record multiple programs.

You will need to connect an antenna to both tuners on the HDHomeRun. If your existing antenna has a good signal, you may be able to split it.
post #1761 of 1962
I have some OTA channels that are strong but some that are just fair, and it's hard to find an antenna position that optimizes them all -- so I've been pretty aware of tuner sensitivity and multipath interference. Two things I'm wondering:
1) Among the dual tuner solutions, can anyone comment on the relative tuner sensitivity and multipath performance of the HDHR tuners compared to other dual tuner solutions such as the Hauppauge WinTV-HVR-2250 Dual TV Tuner or the similar offerings from Asus and Aver?
2) I'm currently using an ATI 650, so another option might be getting a second one (I do have an open slot) -- would Vista MCE work as well with two ATI 650's as with a single dual tuner replacement, such as the HRHR, Hauppauge or others noted? I'm looking for the best solution -- the card costs here are that great so I'm not so focused on the cheapest, more on the best, least buggy, most user friendly solution for recording 2 shows at once in MCE.
post #1762 of 1962
Quote:
Originally Posted by jasonl View Post

You will need to go through the WMC TV Signal setup process again for it to pick up the new tuners. . . . Once that's done, WMC will automatically use all tuners as needed to watch/record multiple programs.

Does that mean that if I use a 4 port amplifier/splitter and run my antenna to the HDHR and my existing ATI 650 then WMC will see and be able to use all three tuners, i.e., record 3 shows at once? Or is 2 a WMC software limit, rendering the ATI redundant at that point?
post #1763 of 1962
Quote:
Originally Posted by smarti03 View Post

Does that mean that if I use a 4 port amplifier/splitter and run my antenna to the HDHR and my existing ATI 650 then WMC will see and be able to use all three tuners, i.e., record 3 shows at once? Or is 2 a WMC software limit, rendering the ATI redundant at that point?

Vista Home Premium theoretically has a 2 tuner limit, but a few registry modification (detailed on a site owned by Microsoft) will enable the use of more tuners. See http://thegreenbutton.com/forums/thread/46023.aspx and search on the page for "N Tuners in MCE, Method 1 (only registry editing): Peters" and follow the instructions there for digital tuners.
post #1764 of 1962
Quote:
Originally Posted by jasonl View Post

Vista Home Premium theoretically has a 2 tuner limit, but a few registry modification (detailed on a site owned by Microsoft) will enable the use of more tuners. See http://thegreenbutton.com/forums/thread/46023.aspx and search on the page for "N Tuners in MCE, Method 1 (only registry editing): Peters" and follow the instructions there for digital tuners.

I'm currently in Vista 32 Ultimate, not Home Premium. Does that mean that the 2 tuner limit doesn't apply and no registry tweaking is needed? And for the future . . . same question if someday I go to Win 7? Thanks, Jason.
post #1765 of 1962
Vista Ultimate theoretically should work with 4 out of the box, but if you encounter a problem, you can always go back and adjust the registry. 7MC will do 4 of each type of tuner (analog, digital cable, digital antenna).
post #1766 of 1962
I thought the 4 tuner limited was introduced with the tv pack in vista?
post #1767 of 1962
As I understand it, Ultimate + TV Pack allows 4 of each kind, which makes sense since it's basically an early version of WMC from 7.
post #1768 of 1962
Quote:
Originally Posted by jasonl View Post

As I understand it, Ultimate + TV Pack allows 4 of each kind, which makes sense since it's basically an early version of WMC from 7.

I've not downloaded TV Pack since you can't undo it and it didn't seem a necessity. Does anyone know if Vista Ultimate without TV Pack can handle more than one tuner, out of the box (i.e., without registry modifications)?
post #1769 of 1962
Their was a tool I found on an Australian site that made the registry changes for you. But you do have to modify the registry to handle more than two digital tuners. Either by hand or with a program developed to do so for you. "MCETuner Config" is the name of the application if you can find it.
post #1770 of 1962
Quote:
Originally Posted by Puwaha View Post

As for your antenna question, you can use the same antenna for all your tuner cards/devices. But I would get a powered antenna amplifier/splitter. You can usually get a 4 port amplifier/splitter for about $20-$30 at retail stores like Best Buy or even Lowe's in their antenna/electrical department. This will save you some headache, as each time you split the signal coming from your antenna, the signal power (db) decreases a bit. The amplifier will overcome this deficiency and provide full signal power (for better or for worse) to all your tuner cards.

I say for better or for worse, because if your antenna isn't getting a good signal to begin with... the amplifier is just going to be reproducing that bad signal to each tuner.

The trick is to get a mast-mounted pre-amp, like this one. Then you get a single port power pass splitter (2-way or 4-way) to get power to the pre-amp. That way you're amplifying the cleanest signal you're able to receive - the signal closest to your antenna. By the time the signal makes it down the cabling and you amplify/split it, you're also amplifying noise from the cable run.
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