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Xiph's Episode 2: _Digital Show & Tell_ is out, Second digital media geekout video from Xiph.Org
xiphmont
post Feb 26 2013, 16:16
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Xiph Episode 2: Digital Show & Tell is out!

"The second video from Xiph.Org explores multiple facets of digital audio signals and how they really behave in the real world. Sampling, quantization, dither, band-limiting, and vintage bench equipment all in one video!"

It's a followup in a sense to the 24/192 article of last year. Other videos: http://xiph.org/video/

This post has been edited by greynol: Feb 27 2013, 17:43
Reason for edit: Removed the "!" from the title per news submission guidelines
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bennetng
post Mar 1 2013, 14:17
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Interesting to see the "not stairstep" illustrations. I was a sound engineer in toy design field and needed to compose/arrange music, sound effects and record voice dialogs for several kinds of low-end MCUs. Our customers often complained the sound quality (they don't know what is aliasing, they described the distortion as "metallic noise") but we just explained to them that the speakers (usually about 25 to 40mm diameter) were to blame. We won't tell them the truth.

I generated a sine sweep and digitized the analog output of those MCUs and found that the waveform is even worse than zero order hold, it looks like sawtooth.
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Posts in this topic
- xiphmont   Xiph's Episode 2: _Digital Show & Tell_ is out   Feb 26 2013, 16:16
- - jensend   Congratulations to Monty and the rest of the team ...   Feb 27 2013, 00:26
- - spoon   Excellent presentation, tackling miss-conceptions ...   Feb 27 2013, 10:55
|- - Arnold B. Krueger   QUOTE (spoon @ Feb 27 2013, 04:55) Excell...   Mar 5 2013, 15:27
- - kritip   Is anybody else having issue with the sound stutte...   Feb 27 2013, 15:59
|- - xiphmont   QUOTE (kritip @ Feb 27 2013, 09:59) Is an...   Feb 27 2013, 16:03
|- - DonP   QUOTE (kritip @ Feb 27 2013, 09:59) Is an...   Feb 28 2013, 19:41
- - kritip   ha My gentoo days are over, the other system is ...   Feb 27 2013, 16:17
|- - xiphmont   QUOTE (kritip @ Feb 27 2013, 10:17) ha ...   Feb 27 2013, 16:20
- - 2Bdecided   Beautifully done. It should be required viewing/re...   Feb 27 2013, 17:01
|- - xiphmont   QUOTE (2Bdecided @ Feb 27 2013, 11:01) Be...   Feb 28 2013, 17:18
||- - 2Bdecided   QUOTE (xiphmont @ Feb 28 2013, 16:18) I t...   Feb 28 2013, 17:25
||- - Kees de Visser   QUOTE (xiphmont @ Feb 28 2013, 17:18) I t...   Mar 3 2013, 10:20
|- - krabapple   QUOTE (2Bdecided @ Feb 27 2013, 11:01) Be...   Feb 28 2013, 18:09
|- - 2Bdecided   QUOTE (krabapple @ Feb 28 2013, 17:09) Th...   Mar 1 2013, 10:48
- - kritip   I have updated the the latest beta Chrome Version ...   Feb 27 2013, 17:04
- - greynol   You might miss out on hearing people giggle in the...   Feb 28 2013, 18:35
|- - xiphmont   QUOTE (greynol @ Feb 28 2013, 12:35) You ...   Feb 28 2013, 18:59
- - bennetng   Interesting to see the "not stairstep" i...   Mar 1 2013, 14:17
|- - _if   Monty, that was a great video. I thoroughly enjoye...   Mar 3 2013, 00:44
|- - bennetng   QUOTE (_if @ Mar 3 2013, 07:44) I'd l...   Mar 3 2013, 09:53
|- - db1989   To Monty and co.: I echo the earlier praise about ...   Mar 3 2013, 17:30
|- - _if   QUOTE (bennetng @ Mar 3 2013, 03:53) ... ...   Mar 3 2013, 17:31
- - Engelsstaub   Thanks for your time and the excellent presentatio...   Mar 3 2013, 05:49
- - Mach-X   That was AWESOME. Hope to see more, can't wait...   Mar 5 2013, 08:49
- - Dynamic   I think this video has been beautifully and though...   Mar 5 2013, 14:45
- - julf   I have a strange issue with the gtk-bounce program...   Mar 6 2013, 15:47
|- - xiphmont   QUOTE (julf @ Mar 6 2013, 09:47) I have a...   Mar 7 2013, 09:05
|- - julf   QUOTE (xiphmont @ Mar 7 2013, 09:05) It d...   Mar 7 2013, 14:08
- - Wombat   Nothing has changed, the same funny pics like 20 y...   Sep 9 2013, 21:46
|- - TomasPin   QUOTE (Wombat @ Sep 9 2013, 17:46) http:/...   Sep 9 2013, 23:55
- - Nick.C   I loved this: "Make believe" encompas...   Sep 9 2013, 22:18


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