Jan. 28th, 2019

stormdog: (floyd)
From exactly ten years ago in Livejournal, I wrote this about an animé series in which one character has a condition very similar to the prosopagnosia (face blindness) I deal with. As well as talking about connections in the series with matters polyamorous and genderqueer, watching Kashimashi helped me feel understood and validated in ways that surprised me in their power.

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From 1-28-2009:

...Thirdly, there's this...condition...that Yasuna is dealing with. Through the beginning of the series, it's demonstrated that she's rather anti-social and pulls away from people, preferring to be by herself and shunning socializing with her classmates. She seems either snobbish, or extremely shy. I preferred to think of her as extremely shy because I can relate to that, and I like to give people the benefit of the doubt. And she seemed more scared that disdainful.

In the second disc, her avoidant behavior was explained, and the reason behind it shocked me. She can't tell men apart. When she sees them, it's like she's seeing a gray blur, and all she knows is that it's another faceless, nameless person who she can't recognize or connect with. It's as though someone had taken faceblindness, tweaked it a little bit to make it more accessible, and put it into a TV show.

She's a loner with no friends because she can't tell who she's talking to and is scared of offending people by not knowing their names and upsetting people in the hallway, or in class, or at the karaoke house. She pulls away from invitations to parties because she can't deal with trying to keep track of that many people. She declines to play her flute for a project that others in her music class want to put together because she won't know who half of them are. And even though she became close to Hazumu before he became female, and had romantic feelings for him, she turned down his request for a date because, even though she could somehow recognize him, she was scared that she'd suddenly find that she couldn't tell him apart from her other male classmates.

I couldn't believe what I was seeing when the explanation came out. When I made the connection in my head between her seeing males as faceless blurs and the problems I have with faces, it was stunning. When she was terrified to try to return a dropped notebook to its owner because she couldn't tell who he was, I was taken back to my days trying to make my way through school, never knowing who my classmates were. And as it became clear how isolated this disability has made her... it made me cry. I've been there. I am there still; I still feel so isolated by it sometimes. At conventions, at parties, at any social events with more than a handful of people... I was shocked. Empathetically saddened and unexpectedly validated at the same time.

As I was talking to [my now-ex], I speculated that maybe it would be possible to do a short film about face-blindness that could make it more understandable to people. Something that could popularize it and make it more understood. I don't know; I wouldn't know where to start with something like that. But I just had to write a little bit here about how amazing it was to see someone in mainstream (more or less) media with the same (more or less; I know, work with me here) condition that I have. I don't dwell on it much, but I've had to admit to myself that I really am disabled, and it's an invisible disability, and that I share the feelings that others with invisible disabilities have expressed in various mediums. And seeing Yasuna struggle to interact with people that she can't recognize or tell apart, even though she's a fictional character, took away a little bit of that sense of isolation. I felt understood. I don't know how much sense that makes when there's nobody actually doing the understanding, but it was a very good feeling.
stormdog: (Geek)
I've been mathing and some of the below doesn't make sense. I forgot about the 50k pot the signal goes through to get to the amp. In theory, I should be able to drop the signal amplitude to 0. I'll have to do some poking when I get home. I'll figure this thing out yet!

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I soldered together the first stage of my Elenco radio kit last night; the amplifier that ramps up the demodulated radio signal to drive the speaker. It passed the static tests from the instruction book like checking current in the circuit with no input, so I moved on to the dynamic tests.

I set my function generator to 400hz and attached it to the amp input. I set my analog VOM to 3 volts and turned the circuit on. Whack; the needle pegged and I jumped to disconnect it. The movement seems ok, but I will remember in the future to start at higher ranges regardless of what the *expected* value is.

I think the problem is not my circuit, but my function generator. The instructions say to set it to the minimum amplitude and I did that, but I think the circuit is expecting millivolts and my generator stops producing below 2 volts PtP. The amplifier took those two volts and shot the output right up to the positive rail of 9+ volts (a fresh 9 volt batter), which is over three times the range on that VOM scale. Oops.

In fact, the instructions say to raise the volume slowly until the amp output is 2 volts PtP, which was what I was already feeding to the input. The gain in this circuit as configured is supposed to be between 100 and 180, so the amplifier was trying to shoot 200 volts minimum into the speaker, stopped by the fact that it can't get more than 9 out of the battery.

So....I might buy myself a nicer function generator and put that together next. This one for instance; that should do the job a lot better. One reviewer mentions using it at 200mv, so it will go at least that low. Hopefully it'll step down below 100. Maybe I'll ask on Amazon.

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Ah-ha; here's the full manual. The amplitude resolution is 0.1 volts. With an amp gain of 100, it would step from 0v to 10v to 20v so I think this still wouldn't allow me to do the gain test. Oh well. I think it's safe to assume it works and move on to the next stage.
https://jyetech.com/Products/085/Manual_085F.pdf

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