Videos/A Digital Media Primer For Geeks - Revision history

EPirat: /* Credits */ Update links

2025-09-28T12:05:58Z

Credits: Update links

← Older revision		Revision as of 12:05, 28 September 2025
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	[https://www.gnu.org/ GNU]<br>		[https://www.gnu.org/ GNU]<br>
	[http://www.linux.org/ Linux]<br>		[http://www.linux.org/ Linux]<br>
	[https://~~getfedora~~.org/ Fedora]<br>		[https://fedoraproject.org/ Fedora]<br>
	[http://cinelerra.org/ Cinelerra]<br>		[http://cinelerra.org/ Cinelerra]<br>
	[https://www.gimp.org/ The Gimp]<br>		[https://www.gimp.org/ The Gimp]<br>
	[https://sourceforge.net/projects/audacity/ Audacity]<br>		[https://sourceforge.net/projects/audacity/ Audacity]<br>
	[https://~~svn~~.xiph.org/~~trunk~~/postfish/README Postfish]<br>		[https://gitlab.xiph.org/xiph/postfish/-/blob/master/README.md Postfish]<br>
	[https://gstreamer.freedesktop.org/ Gstreamer]<br>		[https://gstreamer.freedesktop.org/ Gstreamer]<br>

MrZeus: fix Wikipedia

2016-11-25T17:08:06Z

fix Wikipedia

Show changes

MrZeus: /* Credits */ HTTPS FTW!

2016-11-25T16:58:23Z

Credits: HTTPS FTW!

← Older revision		Revision as of 16:58, 25 November 2016
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	This Video Was Produced Entirely With Free and Open Source Software:<br>		This Video Was Produced Entirely With Free and Open Source Software:<br>

	[~~http~~://www.gnu.org/ GNU]<br>		[https://www.gnu.org/ GNU]<br>
	[http://www.linux.org/ Linux]<br>		[http://www.linux.org/ Linux]<br>
	[~~http~~://~~fedoraproject~~.org/ Fedora]<br>		[https://getfedora.org/ Fedora]<br>
	[http://cinelerra.org/ Cinelerra]<br>		[http://cinelerra.org/ Cinelerra]<br>
	[~~http~~://www.gimp.org/ The Gimp]<br>		[https://www.gimp.org/ The Gimp]<br>
	[~~http~~://~~audacity.~~sourceforge.net/ Audacity]<br>		[https://sourceforge.net/projects/audacity/ Audacity]<br>
	[~~http~~://svn.xiph.org/trunk/postfish/README Postfish]<br>		[https://svn.xiph.org/trunk/postfish/README Postfish]<br>
	[~~http~~://gstreamer.freedesktop.org/ Gstreamer]<br>		[https://gstreamer.freedesktop.org/ Gstreamer]<br>

	All trademarks are the property of their respective owners.		All trademarks are the property of their respective owners.

	''Complete video'' [~~http~~://creativecommons.org/licenses/by-nc-sa/3.0/legalcode CC-BY-NC-SA]<br>		''Complete video'' [https://creativecommons.org/licenses/by-nc-sa/3.0/legalcode CC-BY-NC-SA]<br>
	''Text transcript and Wiki edition'' [~~http~~://creativecommons.org/licenses/by-sa/3.0/legalcode CC-BY-SA]<br>		''Text transcript and Wiki edition'' [https://creativecommons.org/licenses/by-sa/3.0/legalcode CC-BY-SA]<br>

	A Co-Production of Xiph.Org and Red Hat Inc.<br>		A Co-Production of [https://xiph.org/ Xiph.Org] and [https://www.redhat.com/ Red Hat Inc.]<br>
	(C) 2010, Some Rights Reserved~~<br>~~		(C) 2010, Some Rights Reserved

	~~<br style="clear:both;"/><hr/>~~
	<center><font size="+1">''[[/making\|Learn more about the making of this video…]]''</font></center>		<center><font size="+1">''[[/making\|Learn more about the making of this video…]]''</font></center>

MrZeus: better/different wiki links?

2016-11-25T16:49:52Z

better/different wiki links?

Show changes

MrZeus: /* Video vegetables (they're good for you!) */

2016-11-25T15:26:57Z

Video vegetables (they're good for you!)

← Older revision		Revision as of 15:26, 25 November 2016
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	</div></center>		</div></center>

	==Video ~~vegetables~~ (they're good for you!)==		==Video Vegetables (they're good for you!)==
	[[Image:Dmpfg_010.jpg\|360px\|right]]		[[Image:Dmpfg_010.jpg\|360px\|right]]

MrZeus: /* Video vegetables (they're good for you!) */

2016-11-25T15:26:37Z

Video vegetables (they're good for you!)

← Older revision		Revision as of 15:26, 25 November 2016
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	==Video vegetables (they're good for you!)==		==Video vegetables (they're good for you!)==
	[[Image:Dmpfg_010.jpg\|360px\|right]]		[[Image:Dmpfg_010.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	than there were with audio. There's no hope of covering them		than there were with audio. There's no hope of covering them
	all completely here, so we'll cover the broad fundamentals.		all completely here, so we'll cover the broad fundamentals.
	~~<br style="clear:both;"/>~~
	===~~resolution~~ and ~~aspect~~===		===Resolution and Aspect===
	[[Image:Dmpfg_011.jpg\|360px\|right]]		[[Image:Dmpfg_011.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	correct aspect. Such an image has to be resampled to show properly on		correct aspect. Such an image has to be resampled to show properly on
	a digital display with square pixels.		a digital display with square pixels.
	~~<br style="clear:both;"/>~~
	===~~frame rate~~ and ~~interlacing~~===		===Frame Rate and Interlacing===
	[[Image:Dmpfg_012.jpg\|360px\|right]]		[[Image:Dmpfg_012.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	<br style="clear:both;"/>		<br style="clear:both;"/>

	===~~gamma~~===		===Gamma and its Correction===
	[[Image:Dmpfg_013.jpg\|360px\|right]]		[[Image:Dmpfg_013.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	followed by an exponential curve with a gamma exponent of 2.4. This		followed by an exponential curve with a gamma exponent of 2.4. This
	encodes a sixteen bit linear range down into eight bits.		encodes a sixteen bit linear range down into eight bits.
	~~<br style="clear:both;"/>~~

	===~~color~~ and ~~colorspace~~===		===Color and Colorspace===
	[[Image:Dmpfg_014.jpg\|360px\|right]]		[[Image:Dmpfg_014.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	widely used to describe all the analog and digital variants of this		widely used to describe all the analog and digital variants of this
	color model.		color model.
	~~<br style="clear:both;"/>~~

	===~~chroma subsampling~~===		===Chroma Subsampling===
	[[Image:Dmpfg_015.jpg\|360px\|right]]		[[Image:Dmpfg_015.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	That's just 4:2:0 video. I'll leave the other subsamplings as homework for the		That's just 4:2:0 video. I'll leave the other subsamplings as homework for the
	viewer. Got the basic idea, moving on.		viewer. Got the basic idea, moving on.
	~~<br style="clear:both;"/>~~

	===~~pixel formats~~===		===Pixel Formats===
	[[Image:Dmpfg_016.jpg\|360px\|right]]		[[Image:Dmpfg_016.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Video_vegetables_.28they.27re_good_for_you.21.29\|Discuss this section]]</small>

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	<br style="clear:both;"/>		<br style="clear:both;"/>

	===~~done~~!===		===Done!===

	That wraps up our not-so-quick and yet very incomplete tour of raw		That wraps up our not-so-quick and yet very incomplete tour of raw
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	** [http://www.xritephoto.com/ph_toolframe.aspx?action=coloriq Test your color vision] (or at least your monitor).		** [http://www.xritephoto.com/ph_toolframe.aspx?action=coloriq Test your color vision] (or at least your monitor).
	</div></center>		</div></center>

	~~<br style="clear:both;"/>~~

	==Containers==		==Containers==

MrZeus: /* Raw (digital audio) meat */

2016-11-25T15:17:38Z

Raw (digital audio) meat

← Older revision		Revision as of 15:17, 25 November 2016
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	<br style="clear:both;"/>		<br style="clear:both;"/>

	==Raw (~~digital audio~~) ~~meat~~==		==Raw (Digital Audio) Meat==
	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>

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	PCM encoding can be characterized in three parameters, making it easy to account for every possible PCM variant with mercifully little hassle.		PCM encoding can be characterized in three parameters, making it easy to account for every possible PCM variant with mercifully little hassle.
	~~<br style="clear:both;"/>~~
	===~~sample rate~~===		===Sample Rate===
	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>

	[[Image:Dmpfg_009.jpg\|360px\|right]]		[[Image:Dmpfg_009.jpg\|360px\|right]]
	[[Image:Dmpfg_008.jpg\|360px\|right]]		[[Image:Dmpfg_008.jpg\|360px\|right]]
	The first parameter is the [[wikipedia:Sampling_rate\|sampling rate]]. The highest frequency an
	encoding can represent is called the Nyquist Frequency. The Nyquist		The first parameter is the [[wikipedia:Sampling_rate\|sampling rate]].
	frequency of PCM happens to be exactly half the sampling rate.		The highest frequency an encoding can represent is called the [[wikipedia:Nyquist_Frequency\|Nyquist Frequency]].
	Therefore, the sampling rate directly determines the highest possible		The Nyquist frequency of PCM happens to be exactly half the sampling rate.
	frequency in the digitized signal.		Therefore, the sampling rate directly determines the highest possible frequency in the digitized signal.

	Analog telephone systems traditionally [[wikipedia:Bandlimiting\|band-limited]] voice channels to		Analog telephone systems traditionally [[wikipedia:Bandlimiting\|band-limited]] voice channels to
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	representable frequency range as [[wikipedia:Aliasing\|aliasing distortion]].		representable frequency range as [[wikipedia:Aliasing\|aliasing distortion]].

	Aliasing, in a nutshell, sounds freakin' awful, so it's essential to		Aliasing, in a nutshell, sounds freakin' awful, so it's essential to remove any beyond-Nyquist frequencies ''before sampling'' and ''after reconstruction''.
	remove any beyond-Nyquist frequencies before sampling and after
	reconstruction.

	Human frequency perception is considered to extend to about 20kHz. In		Human frequency perception is considered to extend to about 20kHz. In
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	<br style="clear:both;"/>		<br style="clear:both;"/>

	===~~sample format~~===		===Sample Format===
	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>
	[[Image:Dmpfg_anim.gif\|right]]		[[Image:Dmpfg_anim.gif\|right]]
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	can be represented in bits a number of different ways.		can be represented in bits a number of different ways.

	Early PCM was [[wikipedia:Quantization_(sound_processing)#Audio_quantization\|eight-bit]] [[wikipedia:Linear_pulse_code_modulation\|linear]], encoded as an [[wikipedia:Signedness\|unsigned]] [[wikipedia:Integer_(computer_science)#Bytes_and_octets\|byte]]. The		Early PCM was [[wikipedia:Quantization_(sound_processing)#Audio_quantization\|eight-bit]] [[wikipedia:Linear_pulse_code_modulation\|linear]], encoded as an [[wikipedia:Signedness\|unsigned]] [[wikipedia:Integer_(computer_science)#Bytes_and_octets\|byte]].
	[[wikipedia:Dynamic_range#Audio\|dynamic range]] is limited to about [[wikipedia:Decibel\|50dB]] and the [[wikipedia:Quantization_error\|quantization noise]], as		The [[wikipedia:Dynamic_range#Audio\|dynamic range]] is limited to about [[wikipedia:Decibel\|50dB]]
	you can hear, is pretty severe. Eight-bit audio is vanishingly rare		and the [[wikipedia:Quantization_error\|quantization noise]], as you can hear, is pretty severe.
	today.		Eight-bit audio is vanishingly rare today.

	Digital telephony typically uses one of two related non-linear eight		Digital telephony typically uses one of two related non-linear eight bit encodings called [[wikipedia:A-law_algorithm\|A-law]] and [[wikipedia:Μ-law_algorithm\|μ-law]].
	bit encodings called [[wikipedia:A-law_algorithm\|A-law]] and [[wikipedia:Μ-law_algorithm\|μ-law]]. These formats encode a roughly		These formats encode a roughly [[wikipedia:Audio_bit_depth#Dynamic_range\|14 bit dynamic range]] into eight bits by spacing the higher amplitude values farther apart.
	[[wikipedia:Audio_bit_depth#Dynamic_range\|14 bit dynamic range]] into eight bits by spacing the higher amplitude		A-law and mu-law obviously improve quantization noise compared to linear 8-bit, and voice harmonics especially hide the remaining quantization noise well.
	values farther apart. A-law and mu-law obviously improve quantization		All three eight-bit encodings (linear, A-law, and mu-law) are typically paired with an 8kHz sampling rate, though I'm demonstrating them here at 48kHz.
	noise compared to linear 8-bit, and voice harmonics especially hide
	the remaining quantization noise well. All three eight-bit encodings,
	linear, A-law, and mu-law, are typically paired with an 8kHz sampling
	rate, though I'm demonstrating them here at 48kHz.

	Most modern PCM uses 16- or 24-bit [[wikipedia:Two's_complement\|two's-complement]] signed integers to		Most modern PCM uses 16- or 24-bit [[wikipedia:Two's_complement\|two's-complement]] signed integers to
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	endiannesses are common. For example, Microsoft [[wikipedia:WAV\|WAV]] files are little-endian,		endiannesses are common. For example, Microsoft [[wikipedia:WAV\|WAV]] files are little-endian,
	and Apple [[wikipedia:AIFC\|AIFC]] files tend to be big-endian. Be aware of it.		and Apple [[wikipedia:AIFC\|AIFC]] files tend to be big-endian. Be aware of it.
	~~<br style="clear:both;"/>~~

	===~~channels~~===		===Channels===
	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>

	The third PCM parameter is the number of [[wikipedia:Multichannel_audio\|channels]]. The convention in		The third PCM parameter is the number of [[wikipedia:Multichannel_audio\|channels]].
	raw PCM is to encode multiple channels by interleaving the samples of		The convention in raw PCM is to encode multiple channels by interleaving the samples of each channel together into a single stream.
	each channel together into a single stream. Straightforward and extensible.		Straightforward and extensible.
	~~<br style="clear:both;"/>~~
	~~===done!===~~

			===Done!===
	And that's it! That describes every PCM representation ever. Done.		And that's it! That describes every PCM representation ever. Done.
	Digital audio is ''so easy''! There's more to do of course, but at this		Digital audio is ''so easy''! There's more to do of course, but at this
	point we've got a nice useful chunk of audio data, so let's get some		point we've got a nice useful chunk of audio data, so let's get some
	video too.		video too.


	<center><div style="background-color:#DDDDFF;border-color:#CCCCDD;border-style:solid;width:80%;padding:0 1em 1em 1em;text-align:left;">		<center><div style="background-color:#DDDDFF;border-color:#CCCCDD;border-style:solid;width:80%;padding:0 1em 1em 1em;text-align:left;">
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	* [[wikipedia:DPCM\|DPCM]] and [[wikipedia:ADPCM\|ADPCM]], simple audio codecs loosely inspired by PCM.		* [[wikipedia:DPCM\|DPCM]] and [[wikipedia:ADPCM\|ADPCM]], simple audio codecs loosely inspired by PCM.
	</div></center>		</div></center>

	~~<br style="clear:both;"/>~~

	==Video vegetables (they're good for you!)==		==Video vegetables (they're good for you!)==

MrZeus: linkify and clean up header section

2016-11-25T15:04:56Z

linkify and clean up header section

← Older revision		Revision as of 15:04, 25 November 2016
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	<small>''Wiki edition''</small>		<small>''Wiki edition''</small>

	[[Image:Dmpfg_001.jpg\|360px\|right]]		[[Image:Dmpfg_001.jpg\|360px\|right]]

	This first video from Xiph.Org presents the technical foundations of modern digital media via a half-hour firehose of information. One community member called it "a Uni lecture I never got but really wanted."		This first video from Xiph.Org presents the technical foundations
			of modern digital media via a half-hour firehose of information.
			One community member called it "a Uni lecture I never got but really wanted."

			The program offers a brief history of digital media, a quick summary of the [https://en.wikipedia.org/wiki/Sampling_theorem sampling theorem],
			and a myriad of details on low level audio and video characterization and formatting.
			It's intended for budding geeks looking to get into video coding,
			as well as the technically curious who want to know more about the media they wrangle for work or play.

	The program offers a brief history of digital media, a quick summary of the sampling theorem, and myriad details of low level audio and video characterization and formatting. It's intended for budding geeks looking to get into video coding, as well as the technically curious who want to know more about the media they wrangle for work or play.
	~~<br/>~~
	~~<br/>~~
	See also: [[Videos/Digital_Show_and_Tell\|Episode 02: Digital Show and Tell]]		See also: [[Videos/Digital_Show_and_Tell\|Episode 02: Digital Show and Tell]]
	~~<br/><br/>~~
	<center><font size="+2">[http://www.xiph.org/video/vid1.shtml Download or Watch online]</font></center>		<center><font size="+2">[http://www.xiph.org/video/vid1.shtml Download or Watch online]</font></center>
	<br style="clear:both;"/>		<br style="clear:both;"/>
	Players supporting WEBM: [http://www.videolan.org/vlc/ VLC 1.1+], [https://www.mozilla.com/en-US/firefox/ Firefox ], [http://www.chromium.org/Home Chrome ], [http://www.opera.com/ Opera], [http://www.webmproject.org/users/ more…]

	Players supporting Ogg/Theora: [~~http~~://www.videolan.org/vlc/ VLC], [~~http~~://www.firefox.com/ Firefox], [~~http~~://www.opera.com/ Opera], [[TheoraSoftwarePlayers\|more…]]		Players supporting [https://www.webmproject.org/ WebM]: [https://www.videolan.org/vlc/ VLC], [https://www.mozilla.com/en-US/firefox/ Firefox], [https://www.chromium.org/Home Chrome], [https://www.opera.com/ Opera], [https://www.webmproject.org/users/ more…]

			Players supporting [[Ogg]]/[[Theora]]: [https://www.videolan.org/vlc/ VLC], [https://www.firefox.com/ Firefox], [https://www.opera.com/ Opera], [[TheoraSoftwarePlayers\|more…]]

	If you're having trouble with playback in a modern browser or player, please visit our [[Playback_Troubleshooting\|playback troubleshooting and discussion]] page.		If you're having trouble with playback in a modern browser or player, please visit our [[Playback_Troubleshooting\|playback troubleshooting and discussion]] page.
	~~<br/>~~
	<hr/>		<hr/>

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	[[Image:Dmpfg_000.jpg\|360px\|right]]		[[Image:Dmpfg_000.jpg\|360px\|right]]
	[[Image:Dmpfg_002.jpg\|360px\|right]]		[[Image:Dmpfg_002.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Introduction\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Introduction\|Discuss this section]]</small>

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	Well good! Because this stuff is a lot of fun!		Well good! Because this stuff is a lot of fun!


	It's no problem finding consumers for digital media. But here I'd		It's no problem finding consumers for digital media. But here I'd
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	[[Image:Dmpfg_006.jpg\|360px\|right]]		[[Image:Dmpfg_006.jpg\|360px\|right]]
	[[Image:Dmpfg_007.jpg\|360px\|right]]		[[Image:Dmpfg_007.jpg\|360px\|right]]

	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Analog_vs_Digital\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Analog_vs_Digital\|Discuss this section]]</small>


	[[WikiPedia:Sound\|Sound]] is the propagation of pressure waves through air, spreading out		[[WikiPedia:Sound\|Sound]] is the propagation of pressure waves through air, spreading out
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	<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>		<small>[[Talk:A_Digital_Media_Primer_For_Geeks_(episode_1)#Raw_.28digital_audio.29_meat\|Discuss this section]]</small>

	Pulse Code Modulation is the most common representation for		[https://en.wikipedia.org/wiki/Pcm Pulse Code Modulation] is the most common representation for raw audio.
	raw audio. Other practical representations do exist: for example, the
	[[WikiPedia:Delta-sigma_modulation\|Sigma-Delta coding]] used by the [[WikiPedia:Super_Audio_CD\|SACD]], which is a form of [[wikipedia:Pulse-density_modulation\|Pulse Density		Other practical representations do exist: for example,
	Modulation]]. That said, Pulse Code Modulation is far		the [[WikiPedia:Delta-sigma_modulation\|Sigma-Delta coding]] used by the [[WikiPedia:Super_Audio_CD\|SACD]],
	and away dominant, mainly because it's so mathematically		which is a form of [[wikipedia:Pulse-density_modulation\|Pulse Density Modulation]].
	convenient. An audio engineer can spend an entire career without		That said, Pulse Code Modulation is far and away dominant, mainly because it's so mathematically convenient.
	running into anything else.		An audio engineer can spend an entire career without running into anything else.

	PCM encoding can be characterized in three parameters, making it easy		PCM encoding can be characterized in three parameters, making it easy to account for every possible PCM variant with mercifully little hassle.
	to account for every possible PCM variant with mercifully little
	hassle.
	<br style="clear:both;"/>		<br style="clear:both;"/>
	===sample rate===		===sample rate===

Gmaxwell: ep02 link

2013-02-26T11:09:21Z

ep02 link

← Older revision		Revision as of 11:09, 26 February 2013
Line 5:		Line 5:

	The program offers a brief history of digital media, a quick summary of the sampling theorem, and myriad details of low level audio and video characterization and formatting. It's intended for budding geeks looking to get into video coding, as well as the technically curious who want to know more about the media they wrangle for work or play.		The program offers a brief history of digital media, a quick summary of the sampling theorem, and myriad details of low level audio and video characterization and formatting. It's intended for budding geeks looking to get into video coding, as well as the technically curious who want to know more about the media they wrangle for work or play.
	<br/><br/><br/>		<br/>
			<br/>
			See also: [[Videos/Digital_Show_and_Tell\|Episode 02: Digital Show and Tell]]
			<br/><br/>
	<center><font size="+2">[http://www.xiph.org/video/vid1.shtml Download or Watch online]</font></center>		<center><font size="+2">[http://www.xiph.org/video/vid1.shtml Download or Watch online]</font></center>
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Gmaxwell: /* Credits */ make link direct

2013-02-26T00:18:16Z

Credits: make link direct

← Older revision		Revision as of 00:18, 26 February 2013
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	<center><font size="+1">''[[~~A Digital Media Primer For Geeks (episode 1)~~/making\|Learn more about the making of this video…]]''</font></center>		<center><font size="+1">''[[/making\|Learn more about the making of this video…]]''</font></center>