vu+ duo

stanley1

Got Happauge dvbt stick this morning, enabled drivers in VUDUO and identified in tuner configuration as Tuner C, have done full scan but at 100% no services found, will have another try later. Aerial is in attic and working on Humax trial box pulling in all test channels including HD.

gan23

New drivers released today

"N20100611
- Adjust remote control response time a bit more
- Fix virtual tuner problem. ew Drivers released today "

http://www.vuplus-support.co.uk/showthread.php?911-New-drivers-11-06-2010-please-test-and-post-feedback&p=4824#post4824

Worth a try

stanley1

ok, I have replaced drivers and done a complete scan, still no services showing.

gan23

Is there anything you need to do to configure the tuner before it will work, i.e. plug it into your laptop and change settings etc.? Im just guessing here....
If it does only work for mpeg2 you should still be able to scan for the channels and pick them up (with no picture) as stated in a previous post. When its in the vuplus can you see anything to indicate signal strenght etc??

Apogee

Are you using automatic settings when doing the scan, or entering all the parameters manually? I have found that Linux based receivers often require you to specify all parameters.

Bandwidth 8MHz
Modulation 64QAM
Guard Internal 1/32
Code rate 2/3
Transmission mode 8k

gan23 wrote: »

Is there anything you need to do to configure the tuner before it will work, i.e. plug it into your laptop and change settings etc.? Im just guessing here....
If it does only work for mpeg2 you should still be able to scan for the channels and pick them up (with no picture) as stated in a previous post. When its in the vuplus can you see anything to indicate signal strenght etc??

There's no such thing as an mpeg2 tuner and it cannot be preconfigured in a laptop.

stanley1

I have put it on laptop and like you say it's sound only, i just had a look in VU tuner configuration and even with the stick plugged out it still does a complete scan. I think maybe Dream Elite drivers are not picking up Hauppauge dvbt stick.

stanley1

ok Apogee, many thanks, used your settings and just changed frequency to 738000 (3 rock) all stations coming in including test HD.


Regards

irishchris

i installed the hauppage dtt nova stick in the vu+ but find it jittery on channels. dont know why as seems perfect on laptop. i must have a proper look tomorrow at it and maybe try improving signal. am hoping its a signal prob and not a vu+ prob!

byte

Great to see some of ye got the DVBT stick working. Fair play.

I must invest over the coming weeks when I've a few shillings together!

stanley1

irishchris wrote: »

i installed the hauppage dtt nova stick in the vu+ but find it jittery on channels. dont know why as seems perfect on laptop. i must have a proper look tomorrow at it and maybe try improving signal. am hoping its a signal prob and not a vu+ prob!

Been rock steady so far but lipsync is way out.

irishchris

yes mine is working ok now but earlier when i was recording two shows with both sat tuners and when i went to watch the froggies playing on rte 2 dtt it froze really bad. all is ok now but really bad lip sync! would this be vu problem or is it a prob with the dtt transmission??

bassy

chris try the dvb-t stick on your laptop,then you will know for sure if its the transmitter or the vu+

irishchris wrote: »

yes mine is working ok now but earlier when i was recording two shows with both sat tuners and when i went to watch the froggies playing on rte 2 dtt it froze really bad. all is ok now but really bad lip sync! would this be vu problem or is it a prob with the dtt transmission??

irishchris

yes i tried on my win 7 laptop using win media centre and is flawless. perfect picture and perfect synched sound. retried in vu and picture is perfect but audio on all dtt channels is out of synch! bummer!!

bassy

go over to that forum link posted above and theres a thread on it about dtt using dvb-t usb stick,and tell them whats happening.hopefully the will correct this with a newer version of software for the vu+duo to work ok with the irish dtt channels.

irishchris wrote: »

yes i tried on my win 7 laptop using win media centre and is flawless. perfect picture and perfect synched sound. retried in vu and picture is perfect but audio on all dtt channels is out of synch! bummer!!

Apogee

stanley1 wrote: »

Been rock steady so far but lipsync is way out.

Lipsync problems are probably a result of driver issues, although there could be other reasons. You can play around with the delay in video/audio using a channel editor like Dreamboxedit, assuming the delay is a fixed time interval and isn't drifting or fluctuating. Delay values in bottom, right-hand corner:



If you record a DTT channel, and play it back, do you still have a lip sync problem? Similarly, if you record a DTT channel, and then ftp the file to a PC and play it back, are there lip sync issues?

stanley1

spoke too soon, stick went faulty on me, made arrangements with amazon for replacement.

irishchris

Apogee wrote: »

Lipsync problems are probably a result of driver issues, although there could be other reasons. You can play around with the delay in video/audio using a channel editor like Dreamboxedit, assuming the delay is a fixed time interval and isn't drifting or fluctuating. Delay values in bottom, right-hand corner:



If you record a DTT channel, and play it back, do you still have a lip sync problem? Similarly, if you record a DTT channel, and then ftp the file to a PC and play it back, are there lip sync issues?

hi mate. yes i checked by recording or streaming it through laptop from vu+ and audio problems are gone - no sync probs but watching it direct on vu+ and there is a 1-2 second delay on audio!! very frustrating!!

Apogee

irishchris wrote: »

hi mate. yes i checked by recording or streaming it through laptop from vu+ and audio problems are gone - no sync probs but watching it direct on vu+ and there is a 1-2 second delay on audio!! very frustrating!!

You can still try the channel editor as a temporary fix, but you should report back your findings above to the Vu+ Support people, as it may allow them to isolate the problem more quickly.

irishchris

Apogee wrote: »

You can still try the channel editor as a temporary fix, but you should report back your findings above to the Vu+ Support people, as it may allow them to isolate the problem more quickly.

hi mate is it the bitstream or pcm that i change delay for?? - bout 100 ms should be enough??

carbsy

irishchris wrote: »

hi mate is it the bitstream or pcm that i change delay for?? - bout 100 ms should be enough??

A 1 to 2 second delay would be 1000 to 2000 ms.

irishchris

carbsy wrote: »

A 1 to 2 second delay would be 1000 to 2000 ms.

yes i understand that. but........ is it the pcm or bitrate which i change????

Apogee

Bitstream is probably video, and PCM refers to audio. Try both and see.

gan23

well IrishChris,
Did you manage to get it working ok yet?

irishchris

nope it is working brill but still has audio delay but quick fix till dream elite update their image is pause for 3 secs and it rectifies itself

Apogee

Could you post a photo or a screengrab of the tuner search menu page?

irishchris

sorry mate not sure which page you are looking for. where the manual auto tune is/ the channel selection for rte dtt/the tuner config where you pick which tuner a-b-c??

Apogee

The page where you do the frequency scan for 3Rock.

VINNIEB

Hi,

I received the VU+ yesterday, bloody good receiver.

I installed DE BH latest image, however i cant seem to sort oout the wlan, it is not showing up in the network setup. The adapter is listed as compatible and works on the PC.

Any Ideas?

Vinnie

clancger

I had lots of network problems too at first, and installed VTI cos I read it was more stable with WLAN - working well now

irishchris

Apogee wrote: »

Could you post a photo or a screengrab of the tuner search menu page?

hi mate

hope these are of some use. if you need more let me know

Apogee

I noticed the post by the Italian guy on DE forum where he claimed that he eliminated all audio lag simply by using an updated terrestrial.xml file. I can only rationalise this if 1) the new file specified all parameters exactly (no auto) or 2) the new file specified a slightly different mux frequency.

1) The full set of parameters are:
bandwidth: 0 = 8 MHz, 1 = 7 MHz, 2 = 6 MHz, 3 = Auto (unsupported, default)
constellation: 0 = QPSK, 1 = 16-QAM (default), 2 = 64-QAM, 3 = Auto
code_rate_{lp,hp}: 0 = 1/2, 1 = 2/3, 2 = 3/4, 3 = 5/6, 4 = 7/8, 5 = Auto (default), 6 = None
guard_interval: 0 = 1/32, 1 = 1/16, 2 = 1/8, 3 = 1/4, 4 = Auto (default)
transmission_mode: 0 = 2K, 1 = 8K, 2 = Auto (default)
hierarchy_information: 0 = None, 1 = 1, 2 = 2, 3 = 4, 4 = Auto (default)
inversion: 0 = Off, 1 = On, 2 = Auto (default)

They correspond to bandwidth, modulation, code rate high, code rate low, guard interval mode, transmission mode, hierarchy mode, and inversion in your screenshot.

We know the following for sure:


Bandwith = 8 MHz
Modulation = 64QAM
Code rate high = 2/3
Code rate low = 2/3
Guard Interval mode = 1/32
Transmission mode = 8k

The two I'm unsure about are:
Hierarchy mode = I think 'non-hierarchical' is equivalent to 'none'
Inversion mode = unknown.

What I suggest is that you do a number of scans, keeping the first 6 known parameters fixed, and then changing the hierarchy and inversion modes each scan to see if it makes any difference to the audio lag. You would need to delete the existing channels before a new scan each time.

If that doesn't have any effect, then it points to 2) above and signal strength/quality - what sort of aerial are you using and how good is the analogue reception?

irishchris

signal is brilliant on digital. tested using hauppage program and is 100%. changed settings and still habe audio lag. but from de board several people from several euro countries are experiencing this so im sure its just de need to update software - im hoping! if its left for bout 5 mins on a channel audio rectifies itself.

RogerThis

Irishchris, i've started a new thread on the dream-elite forum
http://www.dream-elite.net/forum/showthread.php?5353-Audio-Lip-Sync-Problem-with-DVB-T&p=24816
Your original thread has left the first page and had the wrong title. Hopefully the dream elite admins will reply to this new one.
BTW: I still haven't moved my aerial so I'm not getting any signal. If the admins ask to test something, would you be able to do it?

stanley1

Just wondering why it defaults to Austrailia DVB-T frequencies, see screenshot.

VINNIEB

Hi Again,

Sorted out the wlan problem, all is great now, hd installed, rytec epg installed.

I have downloaded cccam to use on my white ftv card, can anyone help me to configure it?

Vinnie

RogerThis

stanley1 wrote: »

Just wondering why it defaults to Austrailia DVB-T frequencies, see screenshot.

Australia is the first in the list in the terrestrial.xml file.

irishchris

RogerThis wrote: »

Irishchris, i've started a new thread on the dream-elite forum
BTW: I still haven't moved my aerial so I'm not getting any signal. If the admins ask to test something, would you be able to do it?

sure mate no probs

RogerThis

Fix for lip-sync problem with DVB-T

http://www.dream-elite.net/forum/showthread.php?5387-USB-Tuners-Sync-Audio-problem-SOLVED

irishchris

hi i updted to this and dtt no longer worked. they issued an update at 5.30 to this and dtt channels came back but unfortunately the auido delay is still there

stanley1

problem seems to be only on mpeg4

irishchris

typical ireland had to go with mpeg4 standard so
note on de forum though guy has just reported probs with bbc2 etc in england which is mpeg 2

stanley1

they have issued a fix, but lots of reports of same problems on VU DUO stb, not working for me after applying fix.

stanley1

http://www.pli-images.org/forum/viewthread.php?forum_id=65&thread_id=13805&rowstart=20

Maybe a breakthrough, still being tested.

dfdream

Question on VU+ and reception.

I have VU+ (amazing kit) and notice one issue.

I have it connected to a quad lnb on a fixed dish with a sky+.

I notice that some channels have snr below 60% even down to 45% and the picture pixelates from a liitle to a lot based on the SNR.

Thing is on the sky + these channels are all fine even the 45% ones.

I swapped the cables and no difference.

Im in the west with 80cm solid dish with short cable run.

Has anyone else noticed weak signals with the VU compared to Sky or other box.

BBC1 NI is 85%
BBC HD is 78%
ITV HD is 86%
UTV is 74%
Five is 84%
True Movies is 60% (pixelates)
Movies4men2 +1 is 49% (pixelates)
Movies24 is 37% (pixelates)


D

carbsy

Is there any need for this USB DVBT working if you have an LCD with built in MPEG4 DVBT tuner? I'm buying an VU+ Duo and TV next week so just wanted to make sure!

cheers.

stanley1

Its just that it's a challenge to get it to work, new drivers should sort it out, built in mpeg4 tuner on tv is fine.

carbsy

stanley1 wrote: »

Its just that it's a challenge to get it to work, new drivers should sort it out, built in mpeg4 tuner on tv is fine.

Thanks stanley1, just making sure.

Offer_asking

i have been monitoring this box for a while, thanks to Irish chris. can some one attach your bouquet. i am getting one this week, don't want scan all sat is time consuming.

gan23

The best bouquet for your use depends on the setup you have, i.e. is it a fixed dish or a motorised dish etc. loads of up to date stuff at this link

http://www.vuplus-support.co.uk/forumdisplay.php?21-Enigma-2-Settings

There is also a thread there about how to use dreambox edit to send/save your boquets and a link to download it.

Offer_asking

tuner one motorised dish, tuner 2 on Astra 2