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iPhone remembers volume for headphones and speakers iOS devices
I have notice that my iPhone running v2.0 will remember the volume for headphones and speakers independantly. For example, if you have headphones connected and set the volume to 50%, then remove them and set the volume to 100%, when you reattach the headphones the volume returns to 50% and vice versa. This also works on an iPhone 1st generation running v2.0. I do not know if this was a feature in v1.0, however.

[robg adds: This works in both phone mode and iPod mode; the onscreen display when setting the ringer volume level even tells you that you're setting the headphone ringer level when you've got headphones plugged in.]
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iPhone remembers volume for headphones and speakers | 8 comments | Create New Account
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iPhone remembers volume for headphones and speakers
Authored by: scotty321 on Aug 07, '08 07:46:03AM

Actually, I don't think it's "remembering" the volume level at all... it's simply cutting the volume level to 50% when you plug in headphones (if the volume level was previously above 50%). It does this on the Mac as well. It's really quite a nice touch from Apple -- they want to prevent you from blowing your ears out whenever you plug in headphones. Go ahead and try it on your Mac... it works the same way there as well. Thank you, Apple! This has been around at least since 10.4, and maybe even before then.



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iPhone remembers volume for headphones and speakers
Authored by: lowbatteries on Aug 07, '08 04:14:51PM

Actually, the Mac remembers the set volumes also. If I'm in a quiet coffee shop, I'll mute my speakers before plugging in my headphones, to avoid any embarrassingly loud music blaring if I accidentally become unplugged.



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iPhone remembers volume for headphones and speakers
Authored by: jcbeckman on Aug 07, '08 08:01:39AM

It *is* remembering. My headphone volume is set to max to play into the car stereo, and I watch it go *up* when I plug in.



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iPhone remembers volume for headphones and speakers
Authored by: Perceval on Aug 07, '08 08:41:56AM

It also remembers the volume set on the Dock.



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iPhone remembers volume for headphones and speakers
Authored by: silentcrs on Aug 07, '08 08:49:10AM

It's been this way since 1.0.



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iPhone remembers volume for headphones and speakers
Authored by: corsa on Aug 07, '08 08:49:57AM

Yep, I was just about to say the same thing...



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iPhone remembers volume for headphones and speakers
Authored by: deviladv on Aug 07, '08 04:58:54PM

I'm pretty sure this only has to do with specific types of headphones. For example, if I plug in a stereo cable, any other standard stereo cable does the same thing. However, if use the iphone standard headphones, or perhaps another type of headphones that also have a microphone, it sees that as a different cable and uses a different volume. It doesn't remember for absolutely every cable you have, but it's still very useful, especially when I have to turn it up in my car but turn it down when I use headphones.

It also differentiates between the built in speaker volume and when somethings' plugged in, so there's a third memory setting for when you unplug everything and something needs to play thru your speaker.

There might be a different setting when you plug into a stereo system via the usb port.

Finally, in my experience, in 1.0 this existed but it was buggy and forgot the settings when I plugged in headphones, so I often got surprised and blasted. In 2.0 however this has been exceptionally reliable.



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iPhone remembers volume for headphones and speakers
Authored by: Hermi on Jan 07, '10 09:34:35PM

The iPhone is truly remarkable in this respect. My 3GS remembers individual volume settings for:
1. Apple In-ear headphones (60% volume).
2. Standard 3G earphones (70%).
3. Stereo cable for my car (100%).
4. Unplugged (5%).
I am very impressed with this ability. I guess the iPhone makes a resistance or capacitance measurement to figure out which cable is attached? Both cables 1 and 2 have the same jack, so something more complicated than the type of connector is being used.

Edited on Jan 07, '10 09:35:47PM by Hermi



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