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Official DVICO TViX M6620N HD (ATSC/QAM) Tuner Topic - Page 5

post #121 of 2239
I installed Upip and the unit started to read my server. Though the unit does stream some HD, others it stutters horribly. One quote of many from another discussion board regarding this unit "While MPEG-2 files played flawlessly over Ethernet at rates of 25 Mbps and upwards, 20 Mbps H264 stuttered repeatedly over the network and even USB-2 external drive. However, on the internal drive, they played just fine. DViCO should really address this if they can, unless it is a hardware limitation of some kind." Apparently Im not alone except on this site. If anyone has the abilty to stream H264 with this unit and a server, please help.
post #122 of 2239
"Upip"? Wazzat? Do you mean UPnP?

I have played H264 Blu-Ray streams via my SMB LAN shares without stuttering. I don't think there's a generic issue with that, although the maximum bitrate possible over LAN is lower than over USB or from the internal HDD. A 20-Mbps MPEG-4 stream is a pretty data-rich video!
post #123 of 2239
Quote:
Originally Posted by TPeterson View Post


I look forward to your update on the scheduled-capture audio.

TPeterson,

Last night's recording did have audio, though it was the wrong show. When I set up date/time I selected DST thinking that meant the correct offset was applied depending on calender date. Actually, I guess, it just applies whichever offset you have selected. As a result, when the clock synced up to the transmitted time it was an hour off. No problem, now that I understand how it works. Can't blame them for not wanting to need another firmware change on the whim of the US Congress.

I got a cheap passive antenna from Radio Shack, which pulls in all my local stations fine. Despite your information that the intermittent audio problem effects both cable and OTA, my experience so far is that OTA the audio is completely reliable.

My understanding is this has to be a software issue. No subcarriers to fail to lock. As far as the hardware goes, either the signal is there or it isn't (except in a narrow window where the error rate increases exponentially) and since the picture is flawless, it is. When they finally fix it I may switch back to cable.

Oh, I tried to open that silent recording in "Video Redo" which, I believe, can select different audio streams. It said "unable to open [path\
ame]. No Pids specified". It plays silently in VLC media player which, in my experience, plays anything that can be played. No hint of the missing audio, though.
post #124 of 2239
Quote:
Originally Posted by Leporello View Post

{DST} just applies whichever offset you have selected....Can't blame them for not wanting to need another firmware change on the whim of the US Congress.

Actually, DViCo's first attempt at this (there is no DST in Korea) was to use the DST flag that's supposed to be in the transport stream, but we discovered that many U.S. stations don't set that correctly--ergo, the user DST flag instead.
Quote:


Despite your information that the intermittent audio problem effects both cable and OTA, my experience so far is that OTA the audio is completely reliable.

My bad. Thanks for the correction. I tested thinking that I was set for OTA, but the box was on cable.
Quote:


Oh, I tried to open that silent recording in "Video Redo"....It said "unable to open [path\
ame]. No Pids specified".

To edit in H2M or VRD files recorded on the 6620, you need to run them through a utility such as Streamclip. See this TViX FAQ. (BTW, contrary to the FAQ, you don't need to install any of the Quicktime stuff unless you want to view the files in Streamclip also. You can "convert" them blind otherwise and view in H2M or VRD)

Edit: You can also edit the files without "converting" them first in Smart Cutter, but that's a much more rudimentary editor (so far).
post #125 of 2239
Anyone know how to remove the top cover? It looks for all the world like removing the two screws from the back should allow it to slide forward and/or lift up, but it won't budge. I peeled off the sticker on top to look for hidden screws, but there were none. In addition to satisfying my geek curiosity, I may need to remove it when the hard drive needs removal.

Mea culpa: due to my failure to RTFM before installing the SATA drive, I didn't first screw on the funny looking puller thing. I actually have a hard time believing I'm the only user to do this. I think there should be a warning about RTFM before installing the hard drive. That would be a lot more useful than warnings about no user serviceable parts inside, etc.

The case seems in part designed to thwart opening it without destroying it figuring out how, and that irritates me. I took off the rubber feet to reveal the hidden screws on the bottom and was able to remove the bottom cover, but that doesn't help much. The drive bay is above the circuit boards and is closed on the bottom. It did help me to replace the tuner module I had removed, which is difficult to guide back onto its connector otherwise.

Seeing the tuner card left me baffled about having one input for the two tuners. I was allowing that maybe the two tuners are on one chip with one rf input pin, but it's actually two identical tuner sections on the board. The increased production cost to having two inputs would therefore be the cost of one F connector, and the increased utility would be so much greater. I anticipate rarely if ever needing to record or record/watch simultaneous programs, but it would be very handy to be able to switch between OTA and cable quickly since they're not necessarily identical (and cable, for me, produces very unreliable audio). I hope other users complain loudly and they revise the tuner.

I echo the complaints here from others about HD video only available via HDMI. In my case, not because I lack a display capable of using it, but because it's a crappy connector prone to falling out (DVI is functionally equivalent video-wise, and far preferable), and because it takes us further down the road of "high definition content protection"--less freedom for the end user, even those not doing copyright violating activities.

I do very much appreciate having its own built-in power supply, instead of yet another wall wart. But, I expect the resulting exposed AC inside is the motivation for making the case so difficult to open.
post #126 of 2239
Is there some trick to connecting the 6620N to a wireless LAN? Or a known issue that will be fixed in that new firmware that is coming "real soon now"?

I have spent two evenings trying to make wireless work, but so far no joy. Went so far as to place 6620N in the same (smallish) room as the router and disable all security on router. Still did not work.

When I search for wireless networks, the 6620N does see the SSID of my network. However, it will not acquire an IP address with or without security enabled.

At this point, my best guesses are:

1) Buggy firmware in 6620N. (Note -I am using the latest.)

2) Bad wireless adapter in 6620N.

3) The 6620N does not like my wimpy 802.11g router. (Note - I am planning to upgrade to 802.11n, but have not yet.)

Any suggestions?
post #127 of 2239
Did you try connecting with WPA2 mode security enabled? That may be the "trick" that you're looking for. Since you're finding the SSID, I'm guessing that the WiFi adapter is OK.
post #128 of 2239
When I tried to configure my router for WPA2, it insisted that I give it the IP address of a RADIUS server, which I don't have. Furthermore, the manual for the 6620N says, "RADIUS (Remote Authentication Dial-In User Services) servers
are not supported."

I'm wondering if the 6620N has some funny limitation like it only supports certain wireless channels, or it requires 802.11n and is not compatible with 802.11g.
post #129 of 2239
No, it will make G connections (but not stream HD video very well then even over a strong rf link!). However, it seems not to like open or WEP on some routers. Your router likely has two different kinds of WPA2, only one of which (corporate) requires RADIUS.
post #130 of 2239
After a fews hours wasted waiting for a router restart after every configuration change, I finally found the trick...

My router has a parameter labeled "Mode" where the options are:

- Wireless-G only
- SuperG
- SuperG without Turbo
- Mixed
- Wireless-B only
- Disabled

As soon as I changed Mode from "Mixed" to "Wireless-G only", my 6620N hooked right up.

Grrr...technology!

Thank you TPeterson for the suggestions.
post #131 of 2239
Thanks for the update. Maybe that trick will help someone else.

My guess is that one of the proprietary modes on your router was tripping things up somehow. So the lesson is to set the router up to use only "standard" 802.11 modes.
post #132 of 2239
I rolled back to the latest non-beta release version of 1.8.7 just to see what would and would not work as far as the PRV section of the 6620N. What I have found is, the tuner section seems to be much more stable. I have not had any reboot problems with the unit when changing channels or going into the guide info, etc.... but if I am recording two channels at the same time and I change channels it only lets me go between the two I am recording... which is fine since it is a dual tuner, but it did reboot after about 3 times of changing back and forth between the two stations.

The only other time I have seen the unit reboot is when I went into YouTube and tried to make it play a video. It then rebooted but I think I read that YouTube is not implemented yet???

I still do have time recording issues however.

When I setup a recording to occur every week day from 9:00am until 10:00am it will not record it. This morning (while I was at work) I was told that it came up with the 15 second count down timer and then changed to the station to record. When I came home it shows that it recorded a 60 minute show but when I play it back it plays about 5 minutes and then comes up with "Error" and an button to close that error window. There is no error number.

It seems to let me record just fine if I use the record button.

Anyone else running the non beta version 1.8.7 and have been able to do scheduled recordings with no issues?

Note: I have only tried firmware version 1.8.7 with ATO HD broadcast so far but I think tonight I will switch it over to QAM and see if it does the same.

Edit: I have just tested 1.8.7 firmware with QAM and I get lots of reboots when changing channels in the high numbers... eg: channeling down from 3.1 to 117.11

Also the channel numbers are not in order.
post #133 of 2239
Thread Starter 
DK,

The new firmware should be out supposedly before Christmas, I have my fingers crossed. That will fix the YouTube problem which is already a known issue since their format was changed. I'm hoping they will fix much of the tuner problems. There are some nice features but I'll hold that thought for the firmware release.
post #134 of 2239
I haven't had issues with scheduled recordings off the air save for one time--Friday of a M-F schedule, for no apparent reason. I'll see if it's the same this Friday, before changing any firmware. I stopped using QAM because of the audio locking in roughly 10% of the time (including with scheduled recordings) making it almost useless. I'll try QAM again after the new firmware comes out.

As far as I can see there is no reason for not being able to have both hooked up, other than the cost of installing another F connector (and terminating resistor) on the board. I really want to register my complaint about that.

I don't recall having any rebooting problems. But, I'm not much of a You Tube junkie. I did switch channels a lot on cable, trying to get the audio to lock in (usually still no audio, but definitely no rebooting).
post #135 of 2239
Hello,

Probably a silly 'new guy' question, but can someone tell me the format the 6640N uses when it records Television? For example does it use a proprietery format?

I am considering purchasing a new unit and am doing some research, so apology for a dumb question...

Regards, Mark
post #136 of 2239
Mark, it records (a subset of) the transport stream as it is received from the station. Nothing proprietary about it, so you can play it back either via the TViX or on any other device that supports TS (.TP) files, such as Media Center (or virtually any other video software) on your PC.
post #137 of 2239
Dvico released another version of this device, the M6640N. So obviously does anyone know the difference from 6620 to 6640? Planning to pick one up myself.
post #138 of 2239
Thread Starter 
Quote:
Originally Posted by Cipher7 View Post

Dvico released another version of this device, the M6640N. So obviously does anyone know the difference from 6620 to 6640? Planning to pick one up myself.

M6620N - ATSC/QAM (North America/Korea)
M6640N - DVB-T (Europe/Australia)
post #139 of 2239
Thread Starter 
There is a new Beta for those who want to test linked at MPC:

http://www.mpcclub.com/forum/showthread.php?t=22364

There are new features for the Media Player like cover art and the YouTube fix, but I don't know how well the tuner section works yet. I'm away from home so the best I could do was test with my daughter's cable service and not getting audio in the channels it tunes. It does mention background recording which I won't test until I get home next week.
post #140 of 2239
I did some quick testing of the 1.9.3B4 and it does seem to fix the QAM rebooting and YouTube playback problems of the previous beta. However, it still does not correctly sort all the QAM channels and it retains the balky audio behavior, as Kei mentioned.

Another good thing about this beta is that it retains the video setting from session to session even if the display device doesn't give it an EDID that it likes.
post #141 of 2239
I had all working perfect but I tried to install the new firmware from here:
http://www.mpcclub.com/forum/showthread.php?t=22364
and on 74% frezes and after that suhtu down the tvix now when i´m tryin to turn on the tvix again appears the red letters of tvix and after that reset and still on that way on an endless loop anyone know how can i to make work my tvix? Thank you
post #142 of 2239
coerrace--

I suggest that you re-download and unzip the .zip file. Then do a binary compare of the two copies you have to see if they're the same. If so, you likely have a complete and uncorrupt copy.

Then try the upgrade again by performing the safe-mode upgrade procedure from the manual.
post #143 of 2239
It works on safe mode. Thank you
post #144 of 2239
Thanks for the confirmation of the fix.
post #145 of 2239
Folks,

I am now the proud owner of a 6640N (same as 6620N but for aussies) and I have been playing with connecting the 6640N to my NAS via a file share so I can access the content.

Having gone through all the locations I could find on here and the Tvix/Dvico websites, I'm yet to find a decent explanation on how I connect the 6640N to NAS.

As a footnote, the 6640N finds the Twonky media server running on my NAS which is great, but I am more interested in a windows style file share connection to the NAS.

Apology for another 'newbie' post, but I've found the people in this forum to be the most knowledagble, friendly, and willing to help on the net.

Any suggestions or links to content greatly appreciated.

Thanks, Mark
post #146 of 2239
Mark, the usual problem that new users have is in consistently defining the share names between the NAS and the TVIX. Think it through carefully and double check your typing and you'll probably find that it just works.
post #147 of 2239
Quote:
Originally Posted by TPeterson View Post

Mark, the usual problem that new users have is in consistently defining the share names between the NAS and the TVIX. Think it through carefully and double check your typing and you'll probably find that it just works.

Hi... updated to the pre-release firmware and the connection to my NAS box is all good.
post #148 of 2239
Glad to hear that you've got it working. I don't think that the "fix" was actually related to anything new in the FW though....
post #149 of 2239
Hello again,

Not sure if my expectations are too high here... but with my trusty Beyonwiz I can record 1 or 2 television programs whilst simultaneously watch either a previously recorded TV show, or better still watch a DVD or Divx movie.

I tried to do the same on my recently aquired 6640N and it politely told me it would stop the TV recording to watch previously recorded TV shows or movies etc. I tried several things but it appears not possible to simultaneously record TV and watch content like movies, DVD's, etc.

I must confess had I know about this 'feature' before purchasing I would most likely have not gone through with the sale. Is there something I'm missing, or this just the way things are with the TViX brand?

Thanks, Mark
post #150 of 2239
Quote:
Originally Posted by TPeterson View Post

Glad to hear that you've got it working. I don't think that the "fix" was actually related to anything new in the FW though....

Agreed. I suspect it was something wrong with my 'human' firmware.
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