Channel Changing speeds (1 Viewer)

[Paranoid Delusion]

If MCE for you is also "suffering from Channel delay" then it is definately down to the TVcard\driver.

Do not really know what more to say, unless Dvico comes up with answer, or you sell your card and get one With better response time.

 

[htpcoz]

No that is the thing, MCE and DW are 5 seconds... MP is typically 13-15 seconds, (sometimes rarely down to 8, and up to 20 seconds).

When I said "is also 5 seconds", I meant to say that MCE and DW are around the same performance, MP is 3-4 times slower using the same BDA drivers. I'm sure it is some form of incompatibility between the DVICO driver implementation and what MP is expecting, what I'm trying to do is find just where that incompatibility is.

I've already found that the DVICO drivers report signal strength in a very strange way (appears to be a signal gain, rather than a percentage). I hacked the relevant MP code to "normalise" the value, but the channel change problem persisted. So, something else must be different.

While for some people 5 seconds may seem a bit much, in my case, I'd have to say that would be "sheer luxury!"

 

[htpcoz]

Paranoid, if you had the opportunity to grab a log of your MP from startup with a couple of channel changes that would be really appreciated, as it will help me track down a little further where things might be going wrong in the code.

 

[Paranoid Delusion]

OK will get logs, from Daughters pc, might not be available till monday, as out tomorrow. and at this moment cannot get her off (teen thing).

But hopefully it will give you some idea why your channel change so slooow.

 

[Nightmare77]

htpcoz,
just wondering, how long does it take from the time it takes the client to go from the main menu screen to click on the TV , how long does it take for you to get some audio/video

 

[htpcoz]

Initial startup of the TV is certainly the longest wait.. this varies, but never gets below 15 seconds, I have had some cases where after 20 seconds the audio/video hasn't appeared, so I press stop (from back out in the home screen), and then start again, in this case it comes up in a few (~5) seconds (I guess because the graphs/tuning have already been performed in the first failed attempt).

When channel changing after starting this delay is typically around 12-13 seconds.

I also have a Hauppauge MCE 150 in the same machine, from pressing Live TV to getting audio/video is typically around 5 seconds. Channel changes obviously very quick, as it is just an external channel changer.

... also thanks in advance to PD for the logs... much appreciated.

 

[Paranoid Delusion]

htpcoz

these files are from a non-timeshifting environment, because you only need to see what is built by MP when retuning.

View attachment 4657 View attachment 4658

You realise, besides the Mux that channel five broadcast on (do not ask), channel changes are as close to 1 second as you can get.

 

[Paranoid Delusion]

These are the logs from My setup using todays svn, with a hauppauge T500
again no timeshifting.

View attachment 4660

View attachment 4661

 

[htpcoz]

Thanks mate, should be able to look into them a little deeper in the next couple of days... looks like yours is presenting data very quickly... I don't see that for some time... very strange!

Thanks again for getting these, hopefully they should help a few of us out.

 

[Paranoid Delusion]

Strange that Dvico had such a good setup with there first Dual card.

Why would they develope, and release a card with these slow channel changes.

What are the change speeds on a virgin install of XP.

The only thing that does slow down channel change, is a signal lock problem (again usually on Fives provider channels).