[PLUG-AV] encoding talk atm & next workshop notes

[Euan de Kock]

Regarding the parts:

A:
The 3.5mm to 6.3 (1/4") cable will be used to feed our main output
channel to a PC sound card input. This will give us a true stereo input
- does our dvsink to file save in stereo ? (Would be nice).

B:
The 3.5mm to 6.5 (1/4") Jack convertor will be better as a full TRS to
TRS (TRS = Tip, Ring, Sleeve) connection. They will need to be used to
interface between the wireless Mic (3.5mm Mono Male) and to feed into
monitoring headphones on the mixer. (The wireless mono Mic will supply a
single input channel correctly using these).

I will knock up a PC interface cable (A:) this week as I have some spare
connectors/cable lying around. I also have two of the Jack converters
(B:) lying around, which will give us an input for the wireless Mic and
an output to a set of the 3.5mm headphones.

I also have a PCI-E Vid card, 9800 GeForce (512Mb RAM) with dual DVI
out, I'll bring it along to our next workshop to see if it flies.

BTW, these are all donations to the av project. If anyone wants to get
their hands on this stuff earlier let me know and I'll arrange to meet
sometime somewhere.

James, at the most recent workshop, you where looking at configuring
some LED indicators - I think using the TALLY signal and an RS232 port. 

Do all the necessary boxes have RS232 ports available ?

Regards,

Euan.


On Wed, 2011-08-10 at 12:34 +0800, Jason Nicholls wrote:
> Hey James,
> 
> 
>         Wonder if its possible and worth having one core doing the
>         x264 encoding in real time then? Hence the video file is ready
>         for upload by the time we pack away.
> 
> Potentially, something to test in the workshop. One CPU would be too
> slow though, at ~12.5fps it'd take a lot longer to finish encoding
> than the talk itself. 2 CPUs could work but might tax the box a bit
> with all the other stuff going on - consider the disk IO, the original
> file was 14 GB (and writing/reading from that at the same time).
>  
> 
> > For the next workshop:
> > - figure out what happened to AV4, with the dead video
> > - document using the audio mixer, although we need to buy the
> > following bits first:
> >   large mono M jacks (left/right) to small stereo M jack (main out
> > of mixer -> computer)
>         See pic to confirm part:
>         http://www.amazon.co.uk/3-5mm-Stereo-6-3mm-Jacks-Adapter/dp/B003NF5OLO
> 
> yes
> 
>  
> >   small mono F jack to large mono M jack (wireless mic -> mixer)
> > (probably best to get a couple of these)
>         http://www.amazon.co.uk/Metal-Stereo-Socket-6-35mm-Adapter/dp/B003OSXND6/ref=sr_1_8?s=electronics&ie=UTF8&qid=1312947261&sr=1-8
> 
> yes
>  
> >   (optional) L & R large M jacks to small stereo F jack (control
> > room out of mixer -> for headphones)
>         (Or the above main out -> computer + a 3.5mm F-F gender
>         bender?)
> 
> that would work too.
> 
> buy please don't buy from amazon :) easily bought here from any
> electronics shop and won't incur ridiculous shipping ...
> 
> 
>  
> > - look at fitting a better vid card into AV2, atm the ancient card
> > in there only supports a single XV window so trying to run DV Switch
> > and watch the stream with VLC or mplayer results in horrible screen
> > performance...
>         Any one got any spares? Or recommendations for something made
>         in the last 5 years and under $50 or so?
>         
>         
> 
> I don't think we should muck about - we can get something quite good
> for $29+shipping from PC Case Gear (same guys that we got the CPU
> from) or from around $50 local.
> 
> http://www.pccasegear.com/index.php?main_page=product_info&cPath=193_876&products_id=13265
> 
> 
> 
> 
> Jason Nicholls
> 
> jason at mindsocket.com.au
> 0430 314 857
> 
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