Can you hear your iPhones drive spin?

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I discovered this yesterday, as just wondered if it was apparant in all iPhone 3Gs.

If it's real quiet (at night, for example), if I plug my earphones in, and do something such as load an app, swipe between home screens, scroll, or anything like that, I can hear what sounds like a hard drive spinning. It stops when I stop scrolling, or the app has loaded or whatever. It's real quiet, and can only be heard through the earphones which is weird as I'm guessing a hard drive spinning wouldn't be a digital noise...

Anyone else noticed this?
 
Lukeeeee said:
I discovered this yesterday, as just wondered if it was apparant in all iPhone 3Gs.

If it's real quiet (at night, for example), if I plug my earphones in, and do something such as load an app, swipe between home screens, scroll, or anything like that, I can hear what sounds like a hard drive spinning. It stops when I stop scrolling, or the app has loaded or whatever. It's real quiet, and can only be heard through the earphones which is weird as I'm guessing a hard drive spinning wouldn't be a digital noise...

Anyone else noticed this?
Click to expand...

No and neither can you.

AFAIK, they use flash memory drives which have no physical moving parts.
 
That's funny! Not trying to be mean to the OP by saying that, but there's no moving parts in the iPhone. It uses flash memory as it's "hard drive".

You could be hearing radio frequency interference with the various internals...

I needed that chuckle, thanks! :)
 
Lukeeeee said:
I discovered this yesterday, as just wondered if it was apparant in all iPhone 3Gs.

If it's real quiet (at night, for example), if I plug my earphones in, and do something such as load an app, swipe between home screens, scroll, or anything like that, I can hear what sounds like a hard drive spinning. It stops when I stop scrolling, or the app has loaded or whatever. It's real quiet, and can only be heard through the earphones which is weird as I'm guessing a hard drive spinning wouldn't be a digital noise...

Anyone else noticed this?
Click to expand...

That's probably feedback from the government office that's listening to your phone calls.
 
iGary said:
I just spit potato chips all over my screen.
Click to expand...

I had almost the same reaction, but it was a tuna sandwich instead.

Anyway... the reason you hear this is because of the touchscreen itself. When you interact with the capacitive touchscreen, the charge on it changes and this could result in slight interference being heard from the headphones.
 
I see little puffs of smoke bellow out of the headphone jack whenever I tap the home button. I also hear rubberbands.
 
There is an actual issue here.

When you have your headphones on, frequently there is a current going through the headphones that produces a hiss, even when your not connected to a phone call or playing the iPod. I've yet to determine what the conditions are that cause a signal to be sent to the headphones. For example, prior to a 'custom ring' being played when you have an incoming call, the current will precede the sound as a quiet hiss. Even if you choose a built in ring tone, the sound (white noise/hiss) will precede the ring. If you leave your headphones on when your not using the phone, that hiss may start and stop at certain times.

What actually concerns me about this is that it is drawing power from the battery when I'm not using any audio function. I don't know if the speaker uses this as well if the headphones are not plugged in, since the gain is too low on the built-in speaker to hear it (without being in an anechoic chamber).

My iPhone 8Gb original (not the 3G) is using v2.1
 
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