Second microphone on future iPhone models might be for more than noise cancellation

Second microphone on future iPhone models might be for more than noise cancellation
Taking a cue from the Nexus One, Apple's new iPhone 4 has a second microphone that is used for noise cancellation. This allows unwanted background noise to be removed and allows for clearer sound through the handset's speaker. But being Apple, the guys at Cupertino have been working on another use for the secondary microphone-by measuring the amount of ambient noise around the phone, the handset can decide to automatically raise the volume of the speakers. For example, let's say you are watching a YouTube video of a particularly annoying fruit as you are walking from a quiet book store into a noisy restaurant next door. As you walk through the doors, the extra microphone reads the higher level of background noise and automatically increases the speaker on the phone so your ears won't have to strain to catch an animated orange screaming, "Hey Apple". The technology is similar to the sensor that the iPhone now uses to make the screen brighter or darker depending on where you are.

According to the patent filing made by Apple, the device compares ambient noise with a database of  background noises to find a match. If the phone matches the noise with a loud environment, the volume on the speakers automatically rises in volume and could also show subtitles on a movie you are viewing if the sensor feels it is necessary. The library of "noisy environments" could be stored on the phone or on a network. The whole idea is to allow you to watch a movie or multimedia presentation from start to finish without having to pause to change the volume or add subtitles.

Apple iPhone 4 Specifications

source: AppleInsider



1. warhed

Posts: 56; Member since: Mar 07, 2010

Brilliant! Now, if anyone tries to copy crApple will Sue you!

2. whocares

Posts: 235; Member since: Dec 19, 2009

If you invented something and someone else used it taking credit for it what would you do?

4. narley

Posts: 357; Member since: May 14, 2009

invented? um cars have been using noise cancellation to raise volume for their radio for about ten years now.... how is this technology "new".

6. hercmech

Posts: 1; Member since: Jun 11, 2010

Cars use a "speed sensitive" volume control, not a database of noise

9. E.N.

Posts: 2610; Member since: Jan 25, 2009

cars and phones are two entirely different things.

3. jsobotka

Posts: 54; Member since: Aug 21, 2009

I heard the 2nd microphone is the one that Apple can turn on and off and monitor at will remotely. Haha, no... Apple would NEVER do that! (Actually, that sounds more like a Microsoft thing). Seriously, though... extend this idea to the front-facing camera tracking your eyes, so that the video you are watching pauses whenever you look away for more than a second or two.

5. narley

Posts: 357; Member since: May 14, 2009

that's a terrible idea.... you dont blink?

7. jsobotka

Posts: 54; Member since: Aug 21, 2009

No, not for more than a second or two, or I will run into something.

8. artz1986

Posts: 453; Member since: Mar 11, 2009

I'm sure a blink is way less than a second. A blink is like a micro second. Regardless, that would still be a pretty bad idea, mainly because you'd have a choppy video; don't get me wrong, it was a good thought. There should be an auto pause feature if you lay the device face down.

10. deago78

Posts: 170; Member since: Oct 08, 2009

@ Artz and narley: you are both idiots. he was joking @jsobotka: that was hilarious lol +1

11. syed2011

Posts: 2; Member since: Oct 29, 2010

Difference is there in their work and importance as well. Think which is more important for you a car or a phone. IphoneModels **sds

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