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Documentation about the Vampire hardware

Pamela HDMI Audio Output

Gilles Dridi

Posts 52
17 Aug 2017 18:59


Hello,

On the test below, the song is slow down when interacting with the slider of the IHM :

EXTERNAL LINK 
Is this a hardware problem ? Amiga600/Vampire ?

Or multitasking issue that will be fixed with more powerful and the standalone version of the Vampire V4 ?

Nevertheless it seems a very good test for DMA engines , arbitration and multitasking in general ...

Hope it is just catch-up due to video recording !

DGILLES


Roy Gillotti

Posts 517
17 Aug 2017 20:49


Maybe I'm blind or def, but I hear any slow downs. Is there a specific time in the video this happened?


Gilles Dridi

Posts 52
17 Aug 2017 20:55


00:50
  01:27
  01:37


Mr Niding

Posts 459
17 Aug 2017 20:55


At for example 0:46 and 1:26 when he scrolls the window.

He should have increased the size, so the slide action was longer, and the lag more pronouced.


Saladriel Amrael

Posts 166
17 Aug 2017 21:07


Seems some sort of slight audio hiccup...



Gilles Dridi

Posts 52
17 Aug 2017 21:08


Ok, sounds good ! I agree.

And eventually :
02:10 (no slider, just arrow bar)
03:35 (slightly because he (M. J.?) moves the slider slowly)


Manuel Jesus

Posts 155
21 Aug 2017 18:36


In this particular core that as an issue, it has been improved since.
That was one of my videos. Testing 2.7 right now so haven't had time to play with AGA.

A bit about the capture setup. Using RGB to scart cable from Amiga to scart to DIGITAL-VIDEO upscaler. The device as an hdmi passthrough so I connect the Vampire DIGITAL-VIDEO to that. I then connected the upscaler to my pc with a PCIE AVERMEDIA hdmi capture card and I can switch between Amiga rgb and DIGITAL-VIDEO from Vampire without loss of sync.



Gilles Dridi

Posts 52
21 Aug 2017 21:56


Hello!
     
Thank you Mr Manuel Jesus for the explanation.
     
Capture explanation "blew" me ! It seems the DIGITAL-VIDEO upscaler a key device ?
 
Is there any trouble with it ? :
  EXTERNAL LINK 
And #Process for an interesting comparison of video format :
  EXTERNAL LINK


Chris Sanz

Posts 25
25 Aug 2017 02:46


Would very much like to see an output header on the card as to hook up to my Repulse card. Not very interested in running a cable back into the machine from the outside to use the switcher and recording functions.

Chris


Gregthe Canuck

Posts 274
25 Aug 2017 03:06



With the DIGITAL-VIDEO audio output you would need to use an DIGITAL-VIDEO "splitter" or "extractor" to expose the audio channels. Whether that could be somehow "buried" inside an (A500?/A1200?) enclosure is a challenge for sure.



Chris Sanz

Posts 25
26 Aug 2017 01:39


Repulse is a versatile Zorro slot sound card, it's in an A2000. I has 3 internal Aux inputs with back panel RCA and SPDIF ins and outs. A keeper for sure.


Gregthe Canuck

Posts 274
26 Aug 2017 03:53


A2000 - lots of room inside :)



Stefano Briccolani

Posts 586
28 Aug 2017 08:00


Paula output will be disabled when audio will come from hdmi? This can be a problem for the floppy drive as Paula run read/write operations. There is a workaround for continuing to use floppy with next versions of the core?


Roy Gillotti

Posts 517
28 Aug 2017 12:44


Stefano Briccolani wrote:

  Paula output will be disabled when audio will come from hdmi? This can be a problem for the floppy drive as Paula run read/write operations. There is a workaround for continuing to use floppy with next versions of the core?
 

  Why do you assume enabling Pamela will automatically disable the floppy features in the Paula? Also I'm assuming, but I believe you will be enable and disable the DIGITAL-VIDEO audio with the vampire utility which you can have done in the start-up script.

posts 14