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I've said it before, this video demo is one of the very best I've ever seen. https://xiph.org/video/vid2.shtml https://xiph.org/video/vid2.shtml So well prepa

by jahnu 9y ago

I've said it before, this video demo is one of the very best I've ever seen. https://xiph.org/video/vid2.shtml https://xiph.org/video/vid2.shtml So well prepared, so well presented, so little that could be removed without ruining it. I aspire to do such good demos but always fall so short.

esaym 9y ago
Wow, that was awesome!
kaishiro 9y ago
Thank you, this really is a great watch. Particularly the zero point stuff re: stairstepping - I had no idea this was merely a function of display.
osrec 9y ago
09:30 to 10:30 explains the effects of quantisation extremely well! Overall, that is one of the clearest, no frills, to the point videos I've ever seen.
combatentropy 9y ago
> this video demo is one of the very best I've ever seen I have said the same thing. I was a film major, a video producer, and a tech writer (now a programmer), and I am in awe.
IgorPartola 9y ago
That is fantastic. The presenter manages to pull of "charismatic engineer" really well.
- obrajesse 9y ago
  Well, he is a very charismatic engineer...
AceJohnny2 9y ago
Monty Montgomery, the author, hangs around here as id=xiphmont :)
hammock 9y ago
That's pretty amazing.. why wouldnt he set up his own sound to eliminate more of that signal generator fan noise though. So distracting.
- xiphmont 9y ago
  I did, but I didn't want to wear a lapel mic for the video and deal with the extra hassle. It was just me (no helpers) and a couple cameras. Wired mics suspended overhead kept sound setup from adding to the logistics for each take. The sound was done similarly to the previous video, which hadn't drawn comments. This time though, a sizable fraction of people said it was distracting.
  - Applejinx 9y ago
    And yet you insist on being the authority for what's permissible? I think you should stop publicly clamoring for limitations to audio resolution on the grounds that you're not representative of enough listeners. I don't mind one bit that you don't hear these things, or that you represent even a majority of people who don't hear these things… but they don't represent the market for commercial audio. You're doing harm, please stop.
shmerl 9y ago
The first one is good too: https://xiph.org/video/vid1.shtml https://xiph.org/video/vid1.shtml Check out also the making of: * https://wiki.xiph.org/Videos/A_Digital_Media_Primer_For_Geeks/making https://wiki.xiph.org/Videos/A_Digital_Media_Primer_For_Geek... * https://wiki.xiph.org/Videos/Digital_Show_and_Tell https://wiki.xiph.org/Videos/Digital_Show_and_Tell
amygdyl 9y ago
I felt that the presenter is a very rare example of a engineer who felt that his expression and purpose was attractive to his imagined audience. Without diversion via the questions embedded in the profession and the perception and self perception of the male geek working and academic world, I so rarely see a presenter reacting to a sense of apparent human warmth in the room, and beyond the lens, which even with the most encouraging assistance behind the lens, is genuinely hard to do. Hard enough that I think it is a classic contribution to the stereotypes of inflated ego newsreel presenters, which Hollywood loves to satirise, in my opinion because Hollywood is mocking, to their narrow and insecure view, a subspecies of acting which when done well, can so massively capture the greater audience than ever some most serious actors may manage to capture. This is a bit more than a little bit of geek knowhow and applied thought, but I think many geeks by virtue of sheer analysis without a obstruction of a ego, could be handily outperforming the supposedly inherent talent they are "meant" to possess. It may be reaching well into "real serious" acting, very easily. I don't pretend to be a judge of that, but if acting abilities are "I know it when I see it", this is excellent acting indeed. Edit, is not was, first line. A comma for clarity but later on.
- deleted 9y ago
  [deleted]
- sk5t 9y ago
  What kind of software generated this comment?
  - soneil 9y ago
    Hah, so cynical. No, this is just how audiophiles describe anything. Even their floorboards.
    - StavrosK 9y ago
      Could it be cargo cult science (language)? By making it sound like an academic paper, it passes for scientific.
- 9y ago
exikyut 9y ago
Thanks for sharing that! I was convinced to watch it from all the other recommendations and can concur (FWIW at this point) that it was well worth it. The camerawork was excellent and the demonstration integration/trinket-wielding was seamlessly done. I get the impression the people who made this had a case of "let's use the ThinkPad for this, and let's do it this and that way," and they pulled it off so perfectly, exactly how engineers wish would happen. If you ever need a reference demo for "open-source software can make good looking presentations," this would be on the shortlist, I think. (The credits say it was made using Cinerella, for reference.)
- derefr 9y ago
  I think one thing that made this happen is that this is a presentation made to exercise an interactive software tool that—although it can also be used for one's own experimentation—was mainly written to be used in the presentation. It's a case of making a custom "musical instrument" crafted to play exactly the song you're about to play on it. A lot like Bret Victor's "puppet controller" app in his presentation Stop Drawing Dead Fish (https://vimeo.com/64895205); https://vimeo.com/64895205); or the actually-an-instrument "MIDI fighter" created by Shawn Wasabi for his music (https://www.youtube.com/watch?v=qAeybdD5UoQ https://www.youtube.com/watch?v=qAeybdD5UoQ, https://www.youtube.com/watch?v=Cj2eUpt3MVE https://www.youtube.com/watch?v=Cj2eUpt3MVE).
rblatz 9y ago
Unfortunately this video doesn't work on iOS. I'll try to remember to watch this next time I'm at a computer.
- cornstalks 9y ago
  It's available on YouTube[1] as well, which should work just about everywhere. [1]: https://www.youtube.com/watch?v=cIQ9IXSUzuM https://www.youtube.com/watch?v=cIQ9IXSUzuM
  - rblatz 9y ago
    Thanks!
ddingus 9y ago
That is amazingly well presented. Agreed. Wow!
drawkbox 9y ago
Noise shaping dither filters are amazing and so is the video, quite educational. I have never been more interested in signal processing than during this video.
ericfrederich 9y ago
Thanks, I appreciate it. I have probably forwarded the article to 20 or so people since it first came out. Didn't know about this video.
harpiaharpyja 9y ago
Read the article, but didn't look at the video until seeing your comment. Thanks, that was indeed an excellent demo video.
h3h4 9y ago
I loved the casual and original expressions of the host, it made the whole demo look much more authentic and convincing. Pure presentations like this is truly an work of art. Hats off to it.
Mizza 9y ago
Thanks for sharing! Well worth the watch, and gave me a bonus dose of ASMR. Commenting needlessly to show my appreciation and to hopefully inspire a future version of myself to watch this again.
dm319 9y ago
Apart from it being a great video, I'm sad to say that I'm surprised my phone isn't burning my fingers after watching all the way through it. It's like these people know something about multimedia on the internet.
Baeocystin 9y ago
I thought you were being a bit hyperbolic until I watched it. Nope, it was stellar. Thanks for posting it for those of us who hadn't seen it, it was fun, and even better, I learned some things about something I thought I already understood.
rplst8 9y ago
Wow, I hadn't seen this until now,but it is definitely the best video I've ever watched to explain the basics of digital sampling. Great find!
mathgenius 9y ago
This reminds me, class D amplifiers are effectively using only 1-bit sampling (!!), the trick being it uses a high sample rate. And these are some of the best amplifiers around.
gbog 9y ago
Well I disagree. The background music on transitional slides can be removed. The rethorical questions ("let's pretend we do not know about digital audio") are just time fillers. Waving the hands toward an inscrustation looks as silly as the meteo girls "playing with flies in front of a green screen" on all TVs worldwide. It is the same with most "well-written" articles in newspapers nowadays. We do not even feel it but its just canned food, a lot of jelly and chemical taste enhancer but the amount of real meat inside is near zero.

by jahnu 9y ago

esaym 9y ago

Wow, that was awesome!

kaishiro 9y ago

Thank you, this really is a great watch. Particularly the zero point stuff re: stairstepping - I had no idea this was merely a function of display.

osrec 9y ago

09:30 to 10:30 explains the effects of quantisation extremely well! Overall, that is one of the clearest, no frills, to the point videos I've ever seen.

combatentropy 9y ago

> this video demo is one of the very best I've ever seen I have said the same thing. I was a film major, a video producer, and a tech writer (now a programmer), and I am in awe.

IgorPartola 9y ago

That is fantastic. The presenter manages to pull of "charismatic engineer" really well.

obrajesse 9y ago
Well, he is a very charismatic engineer...

AceJohnny2 9y ago

Monty Montgomery, the author, hangs around here as id=xiphmont :)

hammock 9y ago

That's pretty amazing.. why wouldnt he set up his own sound to eliminate more of that signal generator fan noise though. So distracting.

xiphmont 9y ago
I did, but I didn't want to wear a lapel mic for the video and deal with the extra hassle. It was just me (no helpers) and a couple cameras. Wired mics suspended overhead kept sound setup from adding to the logistics for each take. The sound was done similarly to the previous video, which hadn't drawn comments. This time though, a sizable fraction of people said it was distracting.
- Applejinx 9y ago
  And yet you insist on being the authority for what's permissible? I think you should stop publicly clamoring for limitations to audio resolution on the grounds that you're not representative of enough listeners. I don't mind one bit that you don't hear these things, or that you represent even a majority of people who don't hear these things… but they don't represent the market for commercial audio. You're doing harm, please stop.

shmerl 9y ago

The first one is good too: https://xiph.org/video/vid1.shtml https://xiph.org/video/vid1.shtml Check out also the making of: * https://wiki.xiph.org/Videos/A_Digital_Media_Primer_For_Geeks/making https://wiki.xiph.org/Videos/A_Digital_Media_Primer_For_Geek... * https://wiki.xiph.org/Videos/Digital_Show_and_Tell https://wiki.xiph.org/Videos/Digital_Show_and_Tell

amygdyl 9y ago

I felt that the presenter is a very rare example of a engineer who felt that his expression and purpose was attractive to his imagined audience. Without diversion via the questions embedded in the profession and the perception and self perception of the male geek working and academic world, I so rarely see a presenter reacting to a sense of apparent human warmth in the room, and beyond the lens, which even with the most encouraging assistance behind the lens, is genuinely hard to do. Hard enough that I think it is a classic contribution to the stereotypes of inflated ego newsreel presenters, which Hollywood loves to satirise, in my opinion because Hollywood is mocking, to their narrow and insecure view, a subspecies of acting which when done well, can so massively capture the greater audience than ever some most serious actors may manage to capture. This is a bit more than a little bit of geek knowhow and applied thought, but I think many geeks by virtue of sheer analysis without a obstruction of a ego, could be handily outperforming the supposedly inherent talent they are "meant" to possess. It may be reaching well into "real serious" acting, very easily. I don't pretend to be a judge of that, but if acting abilities are "I know it when I see it", this is excellent acting indeed. Edit, is not was, first line. A comma for clarity but later on.

deleted 9y ago
[deleted]
sk5t 9y ago
What kind of software generated this comment?
- soneil 9y ago
  Hah, so cynical. No, this is just how audiophiles describe anything. Even their floorboards.
  - StavrosK 9y ago
    Could it be cargo cult science (language)? By making it sound like an academic paper, it passes for scientific.
9y ago

exikyut 9y ago

Thanks for sharing that! I was convinced to watch it from all the other recommendations and can concur (FWIW at this point) that it was well worth it. The camerawork was excellent and the demonstration integration/trinket-wielding was seamlessly done. I get the impression the people who made this had a case of "let's use the ThinkPad for this, and let's do it this and that way," and they pulled it off so perfectly, exactly how engineers wish would happen. If you ever need a reference demo for "open-source software can make good looking presentations," this would be on the shortlist, I think. (The credits say it was made using Cinerella, for reference.)

derefr 9y ago
I think one thing that made this happen is that this is a presentation made to exercise an interactive software tool that—although it can also be used for one's own experimentation—was mainly written to be used in the presentation. It's a case of making a custom "musical instrument" crafted to play exactly the song you're about to play on it. A lot like Bret Victor's "puppet controller" app in his presentation Stop Drawing Dead Fish (https://vimeo.com/64895205); https://vimeo.com/64895205); or the actually-an-instrument "MIDI fighter" created by Shawn Wasabi for his music (https://www.youtube.com/watch?v=qAeybdD5UoQ https://www.youtube.com/watch?v=qAeybdD5UoQ, https://www.youtube.com/watch?v=Cj2eUpt3MVE https://www.youtube.com/watch?v=Cj2eUpt3MVE).

rblatz 9y ago

Unfortunately this video doesn't work on iOS. I'll try to remember to watch this next time I'm at a computer.

cornstalks 9y ago
It's available on YouTube[1] as well, which should work just about everywhere. [1]: https://www.youtube.com/watch?v=cIQ9IXSUzuM https://www.youtube.com/watch?v=cIQ9IXSUzuM
- rblatz 9y ago
  Thanks!

ddingus 9y ago

That is amazingly well presented. Agreed. Wow!

drawkbox 9y ago

Noise shaping dither filters are amazing and so is the video, quite educational. I have never been more interested in signal processing than during this video.

ericfrederich 9y ago

Thanks, I appreciate it. I have probably forwarded the article to 20 or so people since it first came out. Didn't know about this video.

harpiaharpyja 9y ago

Read the article, but didn't look at the video until seeing your comment. Thanks, that was indeed an excellent demo video.

h3h4 9y ago

I loved the casual and original expressions of the host, it made the whole demo look much more authentic and convincing. Pure presentations like this is truly an work of art. Hats off to it.

Mizza 9y ago

Thanks for sharing! Well worth the watch, and gave me a bonus dose of ASMR. Commenting needlessly to show my appreciation and to hopefully inspire a future version of myself to watch this again.

dm319 9y ago

Apart from it being a great video, I'm sad to say that I'm surprised my phone isn't burning my fingers after watching all the way through it. It's like these people know something about multimedia on the internet.

Baeocystin 9y ago

I thought you were being a bit hyperbolic until I watched it. Nope, it was stellar. Thanks for posting it for those of us who hadn't seen it, it was fun, and even better, I learned some things about something I thought I already understood.

rplst8 9y ago

Wow, I hadn't seen this until now,but it is definitely the best video I've ever watched to explain the basics of digital sampling. Great find!

mathgenius 9y ago

This reminds me, class D amplifiers are effectively using only 1-bit sampling (!!), the trick being it uses a high sample rate. And these are some of the best amplifiers around.

gbog 9y ago

Well I disagree. The background music on transitional slides can be removed. The rethorical questions ("let's pretend we do not know about digital audio") are just time fillers. Waving the hands toward an inscrustation looks as silly as the meteo girls "playing with flies in front of a green screen" on all TVs worldwide. It is the same with most "well-written" articles in newspapers nowadays. We do not even feel it but its just canned food, a lot of jelly and chemical taste enhancer but the amount of real meat inside is near zero.