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GeorgeMartin · Joined: Mar 14, 2008 Posts: 16

I have been tearing apart designs and snippets trying to get the combination of buttons and drop down menus on runtime 1. So far I seem to be doing alright, However I looked at a snippet that used a sourceselector And found no mention of it in my manual.

I will be recording and playing back 4 to 8 channels of data from my qds amp. I think I have it hooked up to the edf file recorder just fine. What I need to know then is how to get all 4-8 channels out through the reader and into a polygraph and other elements.

I was wondering if there is a way to do this by setting properties in the device set. I hope this is modestly clear it is friday pm and I'm a bit out of energy

Thanks

George

jarek · Joined: Oct 22, 2007 Posts: 1073

George,

I updated manual, it has now the SourceSelector section.

The most common and easiest way to read multichannel EDF data is to use the EDFFileReader and connect it directly to Polygraph and other elements just the same way as QDS element.

It is also possible to use DeviceSet (select \"EDF file\" in drop down list and choose the file). It makes sense if you wish to make the selection of the file as a global setting (set immediately in all other designs which use DeviceSet), or to switch between QSD and EDF file dynamically (that way the SourceSelector is not necessary, but you still need to reinit design after each such change - see description in SourceSelector).

Jarek

GeorgeMartin · Joined: Mar 14, 2008 Posts: 16

Jarek

Thanks as always for the quick response.

I will read this over and see what I can do

George

snovotill · Joined: Feb 8, 2013 Posts: 80

Hi Jarek, SourceSelector now also has a blue output pipe which is not mentioned in the manual.
Could you please tell what it does? I'm wondering especially if it can be used to re-init the downstream element with respect to changed scale factors caused by switching inputs. Thanks.

jarek · Joined: Oct 22, 2007 Posts: 1073

No, the downstream elements should be reinitialized with PropertySetter, as described in manual.

This output can be used to start/stop source elements, so that only the one which is selected is started.

snovotill · Joined: Feb 8, 2013 Posts: 80

Hmm, that's really handy. I simply run the blue output to my source elements or XDF readers EI, and it automatically starts and stops the correct one, even when I set \"do not start\" on the sources.
One small issue so I'll send you a snippet. Thanks Jarek, much appreciated.