Nova-T 500 Dual DVB-T and h.264

Nova-T 500 Dual DVB-T and h.264

[Lou Otway]

Hi,

Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T 
broadcasts with h.264 and AAC audio?

DTT in New Zealand uses these formats and I'm seeing poor performance 
from the Nova-T card. My thinking is that it was probably not conceived 
for dealing with dual h264 streams.

Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if 
this card might have better performance.

Thanks,

Lou

Re: Nova-T 500 Dual DVB-T and h.264

[Eduard Huguet]

Lou Otway <lotway <at> nildram.co.uk> writes:

> 
> Hi,
> 
> Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T 
> broadcasts with h.264 and AAC audio?
> 
> DTT in New Zealand uses these formats and I'm seeing poor performance 
> from the Nova-T card. My thinking is that it was probably not conceived 
> for dealing with dual h264 streams.
> 
> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if 
> this card might have better performance.
> 
> Thanks,
> 
> Lou
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo <at> vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 


Hi, 
    AFAIK the card just tunes to the desired frequency, applies configured
filters (to select the desired station through its PID number), and handles the
received transport stream to the calling application. It's up to the lastest to
properly decode it. Check that the software you are using is properly capable of
decoding this kind of content.

Best regards, 
  Eduard Huguet

Re: Nova-T 500 Dual DVB-T and h.264

[Lou Otway]

Eduard Huguet wrote:
> Lou Otway <lotway <at> nildram.co.uk> writes:
> 
>> Hi,
>>
>> Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T 
>> broadcasts with h.264 and AAC audio?
>>
>> DTT in New Zealand uses these formats and I'm seeing poor performance 
>> from the Nova-T card. My thinking is that it was probably not conceived 
>> for dealing with dual h264 streams.
>>
>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if 
>> this card might have better performance.
>>
>> Thanks,
>>
>> Lou
> 
> 
> Hi, 
>     AFAIK the card just tunes to the desired frequency, applies configured
> filters (to select the desired station through its PID number), and handles the
> received transport stream to the calling application. It's up to the lastest to
> properly decode it. Check that the software you are using is properly capable of
> decoding this kind of content.
> 
> Best regards, 
>   Eduard Huguet


Hi,

the problem isn't to do with playback as I have another type of adapter 
card that creates a TS, from the same mux, that is played back with no 
problem.

It seems that the problem only happens when using the Nova-T card.

DTT in NZ has services with 1080i video format, I'm not sure that there 
are many other places in the world where 1080i h.264 content is 
broadcast using DVB-T, hence I was thinking that this combination may 
not have been well tested.

Thanks,

Lou

Re: Nova-T 500 Dual DVB-T and h.264

[Eduard Huguet]

2009/9/10 Lou Otway <lotway@nildram.co.uk>:
> Eduard Huguet wrote:
>>
>> Lou Otway <lotway <at> nildram.co.uk> writes:
>>
>>> Hi,
>>>
>>> Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T
>>> broadcasts with h.264 and AAC audio?
>>>
>>> DTT in New Zealand uses these formats and I'm seeing poor performance
>>> from the Nova-T card. My thinking is that it was probably not conceived for
>>> dealing with dual h264 streams.
>>>
>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if
>>> this card might have better performance.
>>>
>>> Thanks,
>>>
>>> Lou
>>
>>
>> Hi,    AFAIK the card just tunes to the desired frequency, applies
>> configured
>> filters (to select the desired station through its PID number), and
>> handles the
>> received transport stream to the calling application. It's up to the
>> lastest to
>> properly decode it. Check that the software you are using is properly
>> capable of
>> decoding this kind of content.
>>
>> Best regards,  Eduard Huguet
>
>
> Hi,
>
> the problem isn't to do with playback as I have another type of adapter card
> that creates a TS, from the same mux, that is played back with no problem.
>
> It seems that the problem only happens when using the Nova-T card.
>
> DTT in NZ has services with 1080i video format, I'm not sure that there are
> many other places in the world where 1080i h.264 content is broadcast using
> DVB-T, hence I was thinking that this combination may not have been well
> tested.
>
> Thanks,
>
> Lou
>
>
>
>
>

I don't know how this it works in NZ. Here in Spain there is at least
one station (TVC's 3HD) emitting HD content through TDT, and it works
flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents
are 1080 or 720, though.

There were some problems watching these channels through MythTV, but
they were definitely decoding related. With current MythTV trunk they
are fine.

Anyway, as I said before, theoretically a DVB card doesn't know what
kind of streams contains the signal it tunes. Decoding & parsing is
handled by the app.

Best regards,
  Eduard Huguet

Re: Nova-T 500 Dual DVB-T and h.264

[Lou Otway]

Eduard Huguet wrote:
> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>> Eduard Huguet wrote:
>>> Lou Otway <lotway <at> nildram.co.uk> writes:
>>>
>>>> Hi,
>>>>
>>>> Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T
>>>> broadcasts with h.264 and AAC audio?
>>>>
>>>> DTT in New Zealand uses these formats and I'm seeing poor performance
>>>> from the Nova-T card. My thinking is that it was probably not conceived for
>>>> dealing with dual h264 streams.
>>>>
>>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if
>>>> this card might have better performance.
>>>>
>>>> Thanks,
>>>>
>>>> Lou
>>>
>>> Hi,    AFAIK the card just tunes to the desired frequency, applies
>>> configured
>>> filters (to select the desired station through its PID number), and
>>> handles the
>>> received transport stream to the calling application. It's up to the
>>> lastest to
>>> properly decode it. Check that the software you are using is properly
>>> capable of
>>> decoding this kind of content.
>>>
>>> Best regards,  Eduard Huguet
>>
>> Hi,
>>
>> the problem isn't to do with playback as I have another type of adapter card
>> that creates a TS, from the same mux, that is played back with no problem.
>>
>> It seems that the problem only happens when using the Nova-T card.
>>
>> DTT in NZ has services with 1080i video format, I'm not sure that there are
>> many other places in the world where 1080i h.264 content is broadcast using
>> DVB-T, hence I was thinking that this combination may not have been well
>> tested.
>>
>> Thanks,
>>
>> Lou
>>
> 
> I don't know how this it works in NZ. Here in Spain there is at least
> one station (TVC's 3HD) emitting HD content through TDT, and it works
> flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents
> are 1080 or 720, though.
> 
> There were some problems watching these channels through MythTV, but
> they were definitely decoding related. With current MythTV trunk they
> are fine.
> 
> Anyway, as I said before, theoretically a DVB card doesn't know what
> kind of streams contains the signal it tunes. Decoding & parsing is
> handled by the app.
> 
> Best regards,
>   Eduard Huguet
> --

I'm not using MythTV or any other type of Media playing application.

In any case, I see very different performance between the two different 
types of card, when presented with the same input.

I'll gather some more data, if I can draw any new conclusions I'll 
update the list.

Best,

Lou

Re: Nova-T 500 Dual DVB-T and h.264

[Eduard Huguet]

2009/9/10 Lou Otway <lotway@nildram.co.uk>:
> Eduard Huguet wrote:
>>
>> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>>>
>>> Eduard Huguet wrote:
>>>>
>>>> Lou Otway <lotway <at> nildram.co.uk> writes:
>>>>
>>>>> Hi,
>>>>>
>>>>> Does anyone have experience of using the Hauppuage Nova-T 500 with
>>>>> DVB-T
>>>>> broadcasts with h.264 and AAC audio?
>>>>>
>>>>> DTT in New Zealand uses these formats and I'm seeing poor performance
>>>>> from the Nova-T card. My thinking is that it was probably not conceived
>>>>> for
>>>>> dealing with dual h264 streams.
>>>>>
>>>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if
>>>>> this card might have better performance.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Lou
>>>>
>>>> Hi,    AFAIK the card just tunes to the desired frequency, applies
>>>> configured
>>>> filters (to select the desired station through its PID number), and
>>>> handles the
>>>> received transport stream to the calling application. It's up to the
>>>> lastest to
>>>> properly decode it. Check that the software you are using is properly
>>>> capable of
>>>> decoding this kind of content.
>>>>
>>>> Best regards,  Eduard Huguet
>>>
>>> Hi,
>>>
>>> the problem isn't to do with playback as I have another type of adapter
>>> card
>>> that creates a TS, from the same mux, that is played back with no
>>> problem.
>>>
>>> It seems that the problem only happens when using the Nova-T card.
>>>
>>> DTT in NZ has services with 1080i video format, I'm not sure that there
>>> are
>>> many other places in the world where 1080i h.264 content is broadcast
>>> using
>>> DVB-T, hence I was thinking that this combination may not have been well
>>> tested.
>>>
>>> Thanks,
>>>
>>> Lou
>>>
>>
>> I don't know how this it works in NZ. Here in Spain there is at least
>> one station (TVC's 3HD) emitting HD content through TDT, and it works
>> flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents
>> are 1080 or 720, though.
>>
>> There were some problems watching these channels through MythTV, but
>> they were definitely decoding related. With current MythTV trunk they
>> are fine.
>>
>> Anyway, as I said before, theoretically a DVB card doesn't know what
>> kind of streams contains the signal it tunes. Decoding & parsing is
>> handled by the app.
>>
>> Best regards,
>>  Eduard Huguet
>> --
>
> I'm not using MythTV or any other type of Media playing application.
>
> In any case, I see very different performance between the two different
> types of card, when presented with the same input.
>
> I'll gather some more data, if I can draw any new conclusions I'll update
> the list.
>
> Best,
>
> Lou
>
>
>

Maybe it's a problem of tuner sensibility. Is the low noise amplifier
(LNA) activated for the Nova-T card?
regards
  Eduard

Re: Nova-T 500 Dual DVB-T and h.264

[Lou Otway]

Eduard Huguet wrote:
> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>> Eduard Huguet wrote:
>>> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>>>> Eduard Huguet wrote:
>>>>> Lou Otway <lotway <at> nildram.co.uk> writes:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Does anyone have experience of using the Hauppuage Nova-T 500 with
>>>>>> DVB-T
>>>>>> broadcasts with h.264 and AAC audio?
>>>>>>
>>>>>> DTT in New Zealand uses these formats and I'm seeing poor performance
>>>>>> from the Nova-T card. My thinking is that it was probably not conceived
>>>>>> for
>>>>>> dealing with dual h264 streams.
>>>>>>
>>>>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if
>>>>>> this card might have better performance.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Lou
>>>>> Hi,    AFAIK the card just tunes to the desired frequency, applies
>>>>> configured
>>>>> filters (to select the desired station through its PID number), and
>>>>> handles the
>>>>> received transport stream to the calling application. It's up to the
>>>>> lastest to
>>>>> properly decode it. Check that the software you are using is properly
>>>>> capable of
>>>>> decoding this kind of content.
>>>>>
>>>>> Best regards,  Eduard Huguet
>>>> Hi,
>>>>
>>>> the problem isn't to do with playback as I have another type of adapter
>>>> card
>>>> that creates a TS, from the same mux, that is played back with no
>>>> problem.
>>>>
>>>> It seems that the problem only happens when using the Nova-T card.
>>>>
>>>> DTT in NZ has services with 1080i video format, I'm not sure that there
>>>> are
>>>> many other places in the world where 1080i h.264 content is broadcast
>>>> using
>>>> DVB-T, hence I was thinking that this combination may not have been well
>>>> tested.
>>>>
>>>> Thanks,
>>>>
>>>> Lou
>>>>
>>> I don't know how this it works in NZ. Here in Spain there is at least
>>> one station (TVC's 3HD) emitting HD content through TDT, and it works
>>> flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents
>>> are 1080 or 720, though.
>>>
>>> There were some problems watching these channels through MythTV, but
>>> they were definitely decoding related. With current MythTV trunk they
>>> are fine.
>>>
>>> Anyway, as I said before, theoretically a DVB card doesn't know what
>>> kind of streams contains the signal it tunes. Decoding & parsing is
>>> handled by the app.
>>>
>>> Best regards,
>>>  Eduard Huguet
>>> --
>> I'm not using MythTV or any other type of Media playing application.
>>
>> In any case, I see very different performance between the two different
>> types of card, when presented with the same input.
>>
>> I'll gather some more data, if I can draw any new conclusions I'll update
>> the list.
>>
>> Best,
>>
>> Lou
>>
>>
>>
> 
> Maybe it's a problem of tuner sensibility. Is the low noise amplifier
> (LNA) activated for the Nova-T card?
> regards
>   Eduard
> --

That's something I hadn't considered. I'll check but I thought that the 
LNA was only applicable to the Nova-TD 500 (which has 2xRF inputs)?

Does the Nova-T 500, with only a single RF input have the LNA?

Thanks,

Lou

Re: Nova-T 500 Dual DVB-T and h.264

[Eduard Huguet]

2009/9/10 Lou Otway <lotway@nildram.co.uk>:
> Eduard Huguet wrote:
>>
>> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>>>
>>> Eduard Huguet wrote:
>>>>
>>>> 2009/9/10 Lou Otway <lotway@nildram.co.uk>:
>>>>>
>>>>> Eduard Huguet wrote:
>>>>>>
>>>>>> Lou Otway <lotway <at> nildram.co.uk> writes:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> Does anyone have experience of using the Hauppuage Nova-T 500 with
>>>>>>> DVB-T
>>>>>>> broadcasts with h.264 and AAC audio?
>>>>>>>
>>>>>>> DTT in New Zealand uses these formats and I'm seeing poor performance
>>>>>>> from the Nova-T card. My thinking is that it was probably not
>>>>>>> conceived
>>>>>>> for
>>>>>>> dealing with dual h264 streams.
>>>>>>>
>>>>>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if
>>>>>>> this card might have better performance.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Lou
>>>>>>
>>>>>> Hi,    AFAIK the card just tunes to the desired frequency, applies
>>>>>> configured
>>>>>> filters (to select the desired station through its PID number), and
>>>>>> handles the
>>>>>> received transport stream to the calling application. It's up to the
>>>>>> lastest to
>>>>>> properly decode it. Check that the software you are using is properly
>>>>>> capable of
>>>>>> decoding this kind of content.
>>>>>>
>>>>>> Best regards,  Eduard Huguet
>>>>>
>>>>> Hi,
>>>>>
>>>>> the problem isn't to do with playback as I have another type of adapter
>>>>> card
>>>>> that creates a TS, from the same mux, that is played back with no
>>>>> problem.
>>>>>
>>>>> It seems that the problem only happens when using the Nova-T card.
>>>>>
>>>>> DTT in NZ has services with 1080i video format, I'm not sure that there
>>>>> are
>>>>> many other places in the world where 1080i h.264 content is broadcast
>>>>> using
>>>>> DVB-T, hence I was thinking that this combination may not have been
>>>>> well
>>>>> tested.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Lou
>>>>>
>>>> I don't know how this it works in NZ. Here in Spain there is at least
>>>> one station (TVC's 3HD) emitting HD content through TDT, and it works
>>>> flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents
>>>> are 1080 or 720, though.
>>>>
>>>> There were some problems watching these channels through MythTV, but
>>>> they were definitely decoding related. With current MythTV trunk they
>>>> are fine.
>>>>
>>>> Anyway, as I said before, theoretically a DVB card doesn't know what
>>>> kind of streams contains the signal it tunes. Decoding & parsing is
>>>> handled by the app.
>>>>
>>>> Best regards,
>>>>  Eduard Huguet
>>>> --
>>>
>>> I'm not using MythTV or any other type of Media playing application.
>>>
>>> In any case, I see very different performance between the two different
>>> types of card, when presented with the same input.
>>>
>>> I'll gather some more data, if I can draw any new conclusions I'll update
>>> the list.
>>>
>>> Best,
>>>
>>> Lou
>>>
>>>
>>>
>>
>> Maybe it's a problem of tuner sensibility. Is the low noise amplifier
>> (LNA) activated for the Nova-T card?
>> regards
>>  Eduard
>> --
>
> That's something I hadn't considered. I'll check but I thought that the LNA
> was only applicable to the Nova-TD 500 (which has 2xRF inputs)?
>
> Does the Nova-T 500, with only a single RF input have the LNA?
>
> Thanks,
>
> Lou
>

I don't know about the TD, but the regular Nova-T 500 definitely has a
LNA that must be activated, that's for sure :D...
Best regards,
  Eduard