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Brad Templeton
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Perhaps you did not see the earlier comment on this. Studies show that people find hearing one half a conversation much more distracting and annoying than hearing both sides. That's why people don't want their seatmate to have a call of more than a few seconds duration. Perhaps you are not one of the people who experiences this, but trust me, many do, so it is only courteous not to call. That's assuming you are one of the very few who know to keep your voice down. Almost nobody does. In a loud environment, we naturally raise our voice, even though the phone's microphone and noise cancel circuits are actually quite good and don't need us to. It takes a lot of work, and I have noticed that every time I remind somebody they should use their indoor voice when on the phone, within a few minutes they go right back up in volume. It's really difficult. But even if you got past both of these, just accept you are packed in a crowded space with other people, many of whom are trying to focus or sleep. What you would do in your office or even in the airline lounge (and those lounges have no-phone rooms because of how annoying people find even that situation) is not something you should politely do for more than is urgently needed when sitting elbow to elbow with others.
There are several reasons why it's worse than the already annoying chatty seatmates. Tests have shown humans have far less tolerance for hearing only one side of a conversation. It's way more annoying. (With chatty seatmates, sometimes they are at such different volumes that you get the same effect and annoyance.) Secondly, when in a loud environment, people tend to yell into their cell phones. They don't realize they are doing it. The reality is the phone picks you up even if you speak very quietly. I believe phones should actually come with a built in feature that if you are talking much more loudly than it needs to get good SNR, it bleeps in your ear to quiet you down. Until we have that, no calls on the damned plane. Indeed, no long conversations. You are crammed with other people. You are not in a meeting room. Glad you are flying together but have your chat before or after the flight or learn to keep it down. That includes me -- we all have this issue that if the environment is loud, we get louder. Even flight attendants. The main reason not to get the seat near the galley isn't the sound of the work. It's the two FAs who sit down to have a nice chat. In today's world of IM, there is little reason to phone anyway. Problem is, some of the people you want to phone (mostly businesses) don't let you text or IM. How about a mode on the phone that does one way audio (you can hear the other side) but you have to type, and it does text to speech with the contact centers. Cuts bandwidth too. Of course, if we can do that, we could do the thing that makes you take your voice to a whisper. Yes, the phone can hear you just fine with your quietest voice. Then we're OK for a short call if you can do that. Alternately, the app could require all calls be on speakerphone, but with the other person's voice set to the same volume as yours. That will stop the long calls, the private business calls, the lovey-dovey conversations. This is not just a silly suggestion -- as I said, studies show that hearing only one side is much more annoying than hearing both, and you would also be much more conscious of your intrusion if you hear both.
Toggle Commented Dec 11, 2016 on Calling On The Plane at VoIPWatch
Your points are valid, though you miss a lot of why many people will tolerate all the problems of SLRs. A larger sensor allows shallower depth of field, which is a must for certain types of photos. (It would be interesting to see if techniques could be developed to adequately simulate it. This should be doable on static shots but much arder on dynamic ones.) Larger sensors also produce much lower noise. That's why my full frame 5D can shoot at 3200 ISO with barely any noise, and can even do monitor-resolution shots at 12,500 ISO. I can shoot in a dimly lit room handheld. The other cameras can't and for now, this is a matter of physics. However, there is a possible solution for the future -- lenses with integrated sensors, and a "body" that is just a holder, screen, computer and storage device. No mirror, so TTL viewing is lost, but as you point out, the mirror has many downsides. You may want to read and comment on this issue here: http://ideas.4brad.com/professional-lenses-built-sensors