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vu+ duo

irishchris

hi everyone

just thought i would mention this new linux open source reciever. i have one ordered so should have it by friday. its sold out accross europe but i ot hold of the one retailer with stock so happy days.

its equivalent to a dm 8000 with the exception it has only 2 tuners, it runs all enigma 2 images including dreambox 8000 images. also runs 90 % of dreambox plugins! for half the price of a dm8000. 419 euro

The box it's name is VU+ Duo and the company that is making it calls Maxdigital.

Specs:
· Open-Source Linux OS (Enigma2)
· Broadcom Mips Prosessor
· Twin DVB-S2 Tuner (Silicon tuner)
· MPEG2/ H.264 Hardware decoding (DVB compatible)
· Alphanumeric VFD Display
· 2 x Common Interface Slots
· 2 x Smartcard-Reader (Conax Embedded)
· 10/100 Mbit Ethernet Interface
· 3 x USB2.0 (1x Front /2x Back)
· 1 x intern SATA (3,5inch bracket)
· 1 x E-SATA
· 1 x V.24/RS232
· HDMI connection V1.3
· 2 x Scart
· YPrPb
· 1 x S/PDIF for digital Audio(optisch)
· Extended EPG
. MHW EPG
. Fastscan plugin
· Plugin Support (JPEG,MP3,XVID...)
. Smartreader+ compatible
· Compatible with enigma2 plugins en settings
. Handy help button on the remote
· Different skins to choose from
· Videotext
· DiSEqC 1.0,1.1 en 1.2

Video:
Video resolution CCIR 601 (720 x 576 lines), 576p, 720p, 1080i
Video decoding MPEG-2, MPEG-4 compatible
Input data rate 2-45 MSymb/s
S/N >53 dB

Audio:
Decoding AC 3, MPEG-4 (AAC-HE), MPEG-1, Layer 1, 2 and 3
Sampling rate 32/44.1/48 kHz
S/N > 65 dB

Power usage:
< 25W (in use, horizontal / 400mA LNB power)
< 20W (in use, withoutLNB)
< 1W (Deep-Standby-Mode)

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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

stanley1

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

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?

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.

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

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

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

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

Apogee

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

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

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

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

gan23

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

Apogee

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

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????

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

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??

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: »

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!!

stanley1

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

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?

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!!

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

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 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??

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.

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!

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!

stanley1

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

Regards

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.