..a Video has a degree of interaction that a written tech. paper will never have. Seeing someone do something makes it easier to try it out yourself.
It's ALWAYS been this way, regardless of age.
Plus, seeing someone get something wrong (and realizing it) and then correcting that mistake makes it much easier to relate to and understand.
On the other hand a good tech paper (w/ illustrations) can give you a LOT more *precise information, but it will never be that sort of resource that says: "you can do this".
Basically video is a bit closer to interaction, even if it is vicarious.
*note: video can do this as well, it's just that it is rarely done that way and even when it is, it's slightly further removed from that perceived interaction (by being parsed-up into detailed video segments).
..and a modest video is probably going to be every bit as (if not more) difficult as a modest tech. paper, and quite likely will require more time to do it. (..basic scripting, editing, multiple "takes", use of hardware and software, etc..) Of course there are rare people that just present well with detailed information with just a phone capture that really don't need to do what most would require for even a modest result.. and can do it faster than any writer.
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Well, it depends. To teach me some real physical action, like playing a specific tune on the guitar, videos are a great medium. To communicate less physical issues like "how do I configure my router" any plain text information is better, imho.
Video does have a great 'degree of interaction'. Sadly the average youtube video is 10% adverts, 20% introduction, 20% product placement, 30% time wasting/ego stroking and 20% the content you actually want.
Over in the DML thread, we have been following along on Tech Ingredients and his “worlds best speakers” story. I have also seen his Voigt pipe speaker video. Some good stuff, some stuff is a bit over simplified. But generally good content and he puts effort into a smooth production.
https://www.diyaudio.com/forums/full-range/272576-study-dmls-range-speaker-29.html#post5453982
https://www.diyaudio.com/forums/full-range/272576-study-dmls-range-speaker-29.html#post5453982
YUP, because the longer you stay on the video the more money it makes - you can blame Youtube for this (at least more than the content creators).
Nah you're totally right 🙂 I like his videos (particularly the non-audio ones) but he was in way over his head with this one. Many of his assumptions were wrong and any competent audio engineer would be embarrassed showing his anechoic chamber results.
His anechoic chamber is completely useless below about 1kHz because the damping material on the inner walls of the chamber is ineffective at those frequencies and the chamber is also far too small. He needs a chamber that is huge so there is meters of open space between both the speaker/mic and the walls. The damping material needs to be at least a metre thick.
Trying to find a difference between the speaker boxes in his chamber measurements was like trying to find a needle in a haystack as most of the ripple (15db+!) was caused by the chamber itself, the speaker boxes having non equal outer dimensions and probably because he didn't place the speakers back in exactly the same location within the chamber each time, which mattered since his chamber is flawed.
His chamber is useful for evaluating tweeters at best, although a gated measurement outside would be far better. It's not difficult to achieve less than 1dB ripple down to a few hundred Hz outside.
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I would have said to about 700 Hz, which is almost useless when compared to a proper (gated) far-field (1 meter) measurement with the source placed well relative to room boundaries (and other reflection points in-room).
His biggest problem with the chamber is that it is a "chamber". To remedy the problem the walls should have been *grating and about 8 inches thick of rockwool panels with an additional upper freq. absorber like 1.5 inches of ultratouch insulation on the "chamber's" interior lining.
This in addition to enough space between building interior surfaces for the test should be good to almost 150 Hz. If you want to go just a bit lower then you really have to stack the floor for a building like his with high ceilings.
*the grating wouldn't have reflected the sound. Probably constructed from wood frame + "egg crate" grating.
For his large building though (assuming he could clear out enough space presumably on the second floor), he would be FAR better off with a ground-plane measurement.
..as it is, it might be interesting for 1k plus NOISE measurements (assuming a good mic. and proper setup).
His biggest problem with the chamber is that it is a "chamber". To remedy the problem the walls should have been *grating and about 8 inches thick of rockwool panels with an additional upper freq. absorber like 1.5 inches of ultratouch insulation on the "chamber's" interior lining.
This in addition to enough space between building interior surfaces for the test should be good to almost 150 Hz. If you want to go just a bit lower then you really have to stack the floor for a building like his with high ceilings.
*the grating wouldn't have reflected the sound. Probably constructed from wood frame + "egg crate" grating.
For his large building though (assuming he could clear out enough space presumably on the second floor), he would be FAR better off with a ground-plane measurement.
..as it is, it might be interesting for 1k plus NOISE measurements (assuming a good mic. and proper setup).
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Our brains have evolved to pay attention to faces, eyes, voices, and body language. It's no surprise that many people learn well by watching videos.
The youngsters will be just fine. I have a hard time believing they'll do any worse than those who've come before them.
hi guys
firstly if you watch youtube without an advert blocker then you deserve knicker adds 🙂 seriously there's no point in watching youtube without adblock or similar
we should remember that this is a guy doing the best with what he has in a home workshop. i get that lots on this forum have surpassed tech ingredients level of knowledge on this subject, but for the less clued up(like me) he gives useful information.
i'm obviously a youngster, because i can up take way more information in 10 seconds of video as opposed to 10 seconds of reading.
regards
gaz
firstly if you watch youtube without an advert blocker then you deserve knicker adds 🙂 seriously there's no point in watching youtube without adblock or similar
we should remember that this is a guy doing the best with what he has in a home workshop. i get that lots on this forum have surpassed tech ingredients level of knowledge on this subject, but for the less clued up(like me) he gives useful information.
i'm obviously a youngster, because i can up take way more information in 10 seconds of video as opposed to 10 seconds of reading.
regards
gaz
Sorry Gaz, you need only watch as far as the toilet rolls to not take the presenter seriously.
As for the ads, I've watched the video umpteen times now in the hope that the M&S one pops up again!
As for the ads, I've watched the video umpteen times now in the hope that the M&S one pops up again!