First YouTube video - adjusting the FET bias of a condenser microphone - Page 1
Forum section: electronics / general

author: Keicar
author_rank: Regular Contributor
timestamp: August 01, 2016, 03:08:16 am
content: G'day everyone - here's a gratuitous plug for my first YouTube video, which might be of interest to folks that are into pro audio.https://youtu.be/SHD4Rrwqy_QConstructive criticism definitely welcome - I'm learning just how difficult it is to do this stuff well.Cheers,Karl.

author: Brumby
author_rank: Unknown
timestamp: August 01, 2016, 04:27:52 am
content: Good first effort.Your framing and focus was good. Lighting on the close-up was excellent. Wide shot lighting was OK, but I might have made things a tiny bit brighter (not a big issue). (Just re-watched .. and it was more the background that I was noticing - so not something to worry about.)Shots of scope and SA were certainly clear enough for the purpose. If I were to say they weren't as crisp as I might prefer, I'd be being a bit picky and a little disrespectful of the CRT displays. (We get digitally spoiled too much.)Audio was also quite good (but somehow that did not come as much of a surprise). Vocal clarity was more than adequate. The only criticism would be a few too many 'Ums' and 'Ahs' - but that will be a matter of building up a level of confidence - which will come with time.The only thing that I did find a little 'indistinct' was the discussion using the circuit diagram. Three things here:* The Sharpie is just too big to indicate accurately and covers too much of the diagram. I'd suggest a pen or a pointer.* Second, it seemed to be 'waving in the air' on a few occasions, not pointing to anything in particular - with the dialogue being similarly non specific. I felt this detracted from the clarity - but that may just be me.* I felt that a couple of notes made on the circuit diagram - like arrows, voltages or whatever - could have helped at a couple of points. Perhaps make a sacrificial copy - or take up the recently introduced DaveCad feature of a clear plastic sheet in front and use a fine whiteboard marker. (Just a thought.)The image resolution was a little on the low side - but again, we do get digitally spoiled. I daresay this could be addressed by a better camera - but such an expense is probably going to be something to look at a bit further down the track.Remember .... this is just my off-the-cuff opinion. Don't lose any sleep over it.Bottom line: Loved the subject matter - and encourage you to do more!

author: Brumby
author_rank: Unknown
timestamp: August 01, 2016, 04:34:59 am
content: Some other points...White balanceReflectionsI didn't mention these - because I didn't notice them.... Well done.

author: LA7SJA
author_rank: Regular Contributor
timestamp: August 01, 2016, 02:08:32 pm
content: Awesome video, with meaningful explanations and comments. I look forward to your next video.Johan-Fredrik

author: GEuser
author_rank: Frequent Contributor
timestamp: August 01, 2016, 03:29:33 pm
content: Can you watch your video again and count how many times you said Umm and similar sounds , then count the total amount of words used/spoken and see whats left over in numbers .That's the only thing i noticed in the video that was not required on a good subject imo .Off topic , but i hear the same habit (that's what it is and fixable?) on the Ham bands and shortwave sometimes , some have it so bad that it would be 50% or more of the content heard Umm , Umm and then i flick the VFO or Channel selector , I've learnt ..You did ask , didn't you .

author: Keicar
author_rank: Regular Contributor
timestamp: October 24, 2016, 12:07:39 am
content: G'day All,Well, I've pressed on and done a couple more - I've decided to do a series on a DIY mic preamp design I've been working on. Not sure if my presentation is getting any better, but I'm trying (and editing out the 'um's & other hesitations where I can).DIY microphone preamp project - VU meter driverhttps://youtu.be/6WDvXofWE8kDIY mic preamp - VU meter driver demonstrationhttps://youtu.be/jESL__AXLXUIt's probably a bit "spammy" to plug each & every video, but it's so hard to find an audience when you're starting out. Hopefully some folks will find this of interest to them.Cheers,Karl.

author: Keicar
author_rank: Regular Contributor
timestamp: November 14, 2016, 01:29:41 am
content: Well, I tried to buildsomesense of drama by doing my very first power-up of a new project on camera:https://youtu.be/0N_bnFs1U6gLet's just say the end result wasn't exactly edge-of-the-seat thrills (which is probably a good thing).Cheers,Karl.

author: Keicar
author_rank: Regular Contributor
timestamp: November 27, 2016, 11:29:23 pm
content: Somewhat inconclusive re: adjusting the negative impedance converter - but looking very promising indeed:https://youtu.be/TVCfhFe1ozACheers,Karl.

author: Keicar
author_rank: Regular Contributor
timestamp: December 03, 2016, 09:27:20 pm
content: Perhaps notentirelyconclusive - but time to move on, I think...https://youtu.be/zD_xFV6EJXkCheers,Karl.

author: Keicar
author_rank: Regular Contributor
timestamp: October 01, 2017, 10:36:27 am
content: It's been a while, butfinallythere's another installment...https://youtu.be/C2sm9CGrXS4Cheers,Karl.

author: Keicar
author_rank: Regular Contributor
timestamp: October 08, 2017, 01:48:06 am
content: Alas there were a couple of 'issues' with my panel layout <sigh>:https://youtu.be/-bYFd_Z_iqkCheers,Karl.