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Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

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51–60 of 144 posts

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#51
This is very clever.

The fact that it has to analyze audio makes me wonder if anybody is trying to standardize broadcasting of local emergency signals. For example, a standardized way to broadcast a fire alarm over WiFi or Bluetooth. There's more than local humans that could be alerted. Local systems could use it a cue to shutdown and remote service providers could be alerted that they have to do something.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#53
post #50

Am I the only one who can't view the website? It is briefly visible for a second, then redirects to a "itmss://" URL and says "The address wasn't understood".

It's an iTunes link, if you don't have iTunes installed it doesn't really work.

oh, but it shows the website for a second.. so the browser actually can display it, right?

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#54
post #48

Earlier quoted context omitted.

This was the message after the appeal: "We still found the app is inappropriately using background audio because it is recording audio in the background for an indefinite period of time, which is not appropriate."

Maybe they don't think it's necessary or appropriate to what you're doing with the sound?

Maybe marpalmin was recording and storing big audio files, which might be a privacy issue I assume (if the user forgets the app is running in the background and ends up recording sensitive/private info).

On the other hand I assume that you don't need to keep long audio samples to run your alarm-recognition algorithm and just discard the audio almost right away.

That's just a wild guess of course, it would just seem reasonable to me if the Apple reviewers saw it that way.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#55
post #6

This is fascinating. What do deaf people normally do in lieu of alarm clocks?

iOS has a built-in accessibility setting to flash the camera LED for alerts and calls: http://www.cnet.com/how-to/ios-5-tip-how-to-enable-led-flash...

(Anecdotally, I don't actually know any deaf people, so I don't know how effective this is as a way to wake people up...but some of my friends who have perfectly good hearing use this feature because they prefer it to having their phone make loud noises for calls and notifications. So it's good for that, too.)

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#56

This is very clever. The fact that it has to analyze audio makes me wonder if anybody is trying to standardize broadcasting of local emergency signals. For example, a standardized way to broadcast a fire alarm over WiFi or Bluetooth. There's more than local humans that could be alerted. Local systems could use it a cue to shutdown and remote service providers could be alerted that they have to do something.

Yeah, I think Nest is actually doing something similar with their smoke detector, which is great.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#57
post #56

This is very clever. The fact that it has to analyze audio makes me wonder if anybody is trying to standardize broadcasting of local emergency signals. For example, a standardized way to broadcast a fire alarm over WiFi or Bluetooth. There's more than local humans that could be alerted. Local systems could use it a cue to shutdown and remote service providers could be alerted that they have to do something.

Yeah, I think Nest is actually doing something similar with their smoke detector, which is great.

Ah, I didn't know that.

A specific use case I was thinking of is some local hotels that my company does IT for. Hotels have lots of third party systems embedded locally and service providers doing stuff for them. If the fire alarm sounds, I'm sure they would love to know about it so they can react faster, either for assisting with the immediate crisis or facilitating the recovery. As far as I can tell, the fire detection/alarm systems are stovepipes that don't tell any other systems (other than 911) what is going on.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#58
post #25

Vibrating for it to wake you means you need to keep it close to your body. I wonder what health implications it may have -- In general its really bad to have a cell phone touching your body for prolonged periods of time because of the radiation it emits.

I don't accept the premise here.

But even if cell phone radiation was actually harmful, you could just leave your phone in airplane mode while you slept.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#59
post #54
post #48

Earlier quoted context omitted.

Maybe they don't think it's necessary or appropriate to what you're doing with the sound?

Maybe marpalmin was recording and storing big audio files, which might be a privacy issue I assume (if the user forgets the app is running in the background and ends up recording sensitive/private info). On the other hand I assume that you don't need to keep long audio samples to run your alarm-recognition algorithm and just discard the audio almost right away. That's just a wild guess of course, it would just seem r…

I'm not storing audio. Just audio analysis, of course I have a small buffer but that's normal for realtime audio anaylsis. I'm using it to detect footsteps.

Re: Show HN: Deaf? My iPhone app wakes you up if it hears an alarm

#60
post #50

Am I the only one who can't view the website? It is briefly visible for a second, then redirects to a "itmss://" URL and says "The address wasn't understood".

It's an iTunes link, if you don't have iTunes installed it doesn't really work.

It does work, if you press "stop" within the second before it redirects.

Not very user friendly.

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