Videos/Digital Show and Tell - Revision history

Xiphmont: speling

2013-02-27T18:46:08Z

speling

← Older revision		Revision as of 18:46, 27 February 2013
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	==== Using Gtk-bounce ====		==== Using Gtk-bounce ====

-	Gtk-bounce consists of eleven pushbutton panels (numbered zero through ten) that can be selected by scrolling up and ~~dwon~~ with the arrow buttons on the right side. Each panel is intended for a specific demo or part of a demo.	+	Gtk-bounce consists of eleven pushbutton panels (numbered zero through ten) that can be selected by scrolling up and down with the arrow buttons on the right side. Each panel is intended for a specific demo or part of a demo.

	<center><div style="background-color:#DDDDDD;border-color:#CCCCCC;border-style:solid;width:80%;padding:0 1em 1em 1em;text-align:left;">		<center><div style="background-color:#DDDDDD;border-color:#CCCCCC;border-style:solid;width:80%;padding:0 1em 1em 1em;text-align:left;">

Gmaxwell: /* Stairsteps */ Reorder images, I think this order may more easily understood.

2013-02-26T11:35:09Z

Stairsteps: Reorder images, I think this order may more easily understood.

← Older revision		Revision as of 11:35, 26 February 2013
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	==Stairsteps==		==Stairsteps==
-	~~[[Image:Dsat 006.jpg\|360px\|right]]~~
	[[Image:Dsat 007.png\|360px\|right]]		[[Image:Dsat 007.png\|360px\|right]]
		+	[[Image:Dsat 006.jpg\|360px\|right]]
	First demo: We begin by converting an analog signal to digital and		First demo: We begin by converting an analog signal to digital and
	then right back to analog again with no other steps.		then right back to analog again with no other steps.

Gmaxwell: /* Use The Source Luke */ Gromit-mpx link

2013-02-26T11:29:52Z

Use The Source Luke: Gromit-mpx link

← Older revision		Revision as of 11:29, 26 February 2013
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	== Use The Source Luke ==		== Use The Source Luke ==

-	As stated in the Epilogue, everything that appears in the video demos is driven by open source software, which means the source is both available for inspection and freely usable by the community. The Thinkpad that appears in the video was running Fedora 17 and Gnome Shell (Gnome 3). The demonstration software does not require Fedora specifically, but it does require Gnu/Linux to run in its current form. In all, the video involved just under 50,000 lines of new and custom-purpose code (including contributions to non-Xiph projects such as Cinelerra and Gromit).	+	As stated in the Epilogue, everything that appears in the video demos is driven by open source software, which means the source is both available for inspection and freely usable by the community. The Thinkpad that appears in the video was running Fedora 17 and Gnome Shell (Gnome 3). The demonstration software does not require Fedora specifically, but it does require Gnu/Linux to run in its current form. In all, the video involved just under 50,000 lines of new and custom-purpose code (including contributions to non-Xiph projects such as Cinelerra and [http://sourceforge.net/projects/gromit-mpx/ Gromit]).

	=== The Spectrum and Waveform Viewer ===		=== The Spectrum and Waveform Viewer ===

Gmaxwell: /* Credits */ hr under the credits.

2013-02-26T11:20:35Z

Credits: hr under the credits.

← Older revision		Revision as of 11:20, 26 February 2013
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	A Co-Production of Xiph.Org and Red Hat, Inc.<br>		A Co-Production of Xiph.Org and Red Hat, Inc.<br>
	(C) 2012-2013, Some Rights Reserved<br>		(C) 2012-2013, Some Rights Reserved<br>
		+	<hr/>

	== Use The Source Luke ==		== Use The Source Luke ==

Gmaxwell: /* GTK-Bounce */ fix the fix to another trac link

2013-02-26T11:18:32Z

GTK-Bounce: fix the fix to another trac link

← Older revision		Revision as of 11:18, 26 February 2013
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	svn co https://svn.xiph.org/trunk/Xiph-episode-II/bounce/		svn co https://svn.xiph.org/trunk/Xiph-episode-II/bounce/
	*Trac is a convenient way to browse the source without checking out a copy:		*Trac is a convenient way to browse the source without checking out a copy:
-	https://trac.xiph.org/browser/~~trac~~/Xiph-episode-II/bounce/	+	https://trac.xiph.org/browser/trunk/Xiph-episode-II/bounce/
	</div></center>		</div></center>

Gmaxwell: /* GTK-Bounce */ fix another trac link

2013-02-26T11:18:10Z

GTK-Bounce: fix another trac link

← Older revision		Revision as of 11:18, 26 February 2013
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	svn co https://svn.xiph.org/trunk/Xiph-episode-II/bounce/		svn co https://svn.xiph.org/trunk/Xiph-episode-II/bounce/
	*Trac is a convenient way to browse the source without checking out a copy:		*Trac is a convenient way to browse the source without checking out a copy:
-	https://trac.xiph.org/browser/Xiph-episode-II/bounce/	+	https://trac.xiph.org/browser/trac/Xiph-episode-II/bounce/
	</div></center>		</div></center>

Gmaxwell: /* Cairo Animations */ fix trac link

2013-02-26T11:17:40Z

Cairo Animations: fix trac link

← Older revision		Revision as of 11:17, 26 February 2013
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	svn co https://svn.xiph.org/trunk/Xiph-episode-II/cairo/		svn co https://svn.xiph.org/trunk/Xiph-episode-II/cairo/
	*Trac is a convenient way to browse the source without checking out a copy:		*Trac is a convenient way to browse the source without checking out a copy:
-	https://trac.xiph.org/browser/Xiph-episode-II/cairo/	+	https://trac.xiph.org/browser/trunk/Xiph-episode-II/cairo/
	</div></center>		</div></center>

Gmaxwell: link to source internally

2013-02-26T11:06:07Z

link to source internally

← Older revision		Revision as of 11:06, 26 February 2013
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	and studying all the pieces that fall out. Play with the demo parameters, hack up the code, set up		and studying all the pieces that fall out. Play with the demo parameters, hack up the code, set up
	alternate experiments. The source code for everything, including the		alternate experiments. The source code for everything, including the
-	little pushbutton demo application, is ~~here~~ at ~~xiph.org~~.	+	little pushbutton demo application, is at the [[Videos/Digital_Show_and_Tell#Use_The_Source_Luke\|bottom of this page]].

	In the course of experimentation, you're likely to run into something		In the course of experimentation, you're likely to run into something

Xiphmont: /* Epilogue */

2013-02-26T11:02:19Z

Epilogue

← Older revision		Revision as of 11:02, 26 February 2013
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	[[Image:Moffey.jpg\|360px\|right]]		[[Image:Moffey.jpg\|360px\|right]]

-	~~Just like~~ in [[Videos/A_Digital_Media_Primer_For_Geeks\|~~the previous episode~~]], we've covered a broad range of	+	Like in [[Videos/A_Digital_Media_Primer_For_Geeks\|_A Digital Media Primer for Geeks_]], we've covered a broad range of
	topics, and yet barely scratched the surface of each one. If anything, my		topics, and yet barely scratched the surface of each one. If anything, my
-	sins of omission are greater this time around~~... but this is a good~~	+	sins of omission are greater this time around.
-	~~stopping point~~.	+

-	~~Or maybe, a good starting point. Dig~~ deeper~~. Experiment~~. I chose my	+	Thus I encourage you to dig deeper and experiment. I chose my
-	demos ~~very~~ carefully to be simple and give clear results. You can	+	demos carefully to be simple and give clear results. You can
-	reproduce every one of them on your own if you like~~. But~~ let's face	+	reproduce every one of them on your own if you like, but let's face
-	it~~, sometimes~~ we learn the most about a spiffy toy by breaking it open	+	it: Sometimes we learn the most about a spiffy toy by breaking it open
-	and studying all the pieces that fall out~~. And that's OK, we're~~	+	and studying all the pieces that fall out. Play with the demo parameters, hack up the code, set up
-	~~engineers~~. Play with the demo parameters, hack up the code, set up	+
	alternate experiments. The source code for everything, including the		alternate experiments. The source code for everything, including the
-	little pushbutton demo application, is up at xiph.org.	+	little pushbutton demo application, is here at xiph.org.

	In the course of experimentation, you're likely to run into something		In the course of experimentation, you're likely to run into something
-	that you didn't expect and can't explain. Don't worry! My earlier	+	that you didn't expect and can't explain. Don't worry! My earlier
	snark aside, Wikipedia is fantastic for exactly this kind of casual		snark aside, Wikipedia is fantastic for exactly this kind of casual
-	research. ~~And, if~~ you're really serious about understanding signals,	+	research. If you're really serious about understanding signals,
	several universities have advanced materials online, such as the		several universities have advanced materials online, such as the
	[http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-003-signals-and-systems-spring-2010/index.htm 6.003]		[http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-003-signals-and-systems-spring-2010/index.htm 6.003]
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	Signals and Systems modules at MIT OpenCourseWare. And of		Signals and Systems modules at MIT OpenCourseWare. And of
	course, there's always the [http://webchat.freenode.net/?channels=xiph community here at Xiph.Org].		course, there's always the [http://webchat.freenode.net/?channels=xiph community here at Xiph.Org].
-
-	~~Digging deeper or not, I am out of coffee, so, until next time, happy~~
-	~~hacking!~~

	==Credits==		==Credits==

Xiphmont: /* Bandlimitation and timing */

2013-02-26T10:59:36Z

Bandlimitation and timing

← Older revision		Revision as of 10:59, 26 February 2013
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	*In modern web browsers you can program audio synthesizers directly in javascript. Use the two square wave formulas to get a square wave out of [http://js.do/blog/sound-waves-with-javascript/ this page]. (Note: The scope is not very accurate/useful.)		*In modern web browsers you can program audio synthesizers directly in javascript. Use the two square wave formulas to get a square wave out of [http://js.do/blog/sound-waves-with-javascript/ this page]. (Note: The scope is not very accurate/useful.)
	</div></center>		</div></center>
		+	<div> </div>

	[[Image:dsat_015.jpg\|360px\|right]]		[[Image:dsat_015.jpg\|360px\|right]]