Technology News

Future iPhone Could Automatically Adjust Its Volume Based On Distance

Apple's U.S. Patent No. 8,452,020 for "Adjustment of acoustic properties based on proximity detection" describes a method in which the volume adjusts automatically by detecting how near or far you are from the phone.  

Holding the phone near your ear would lower the volume, while moving it away slightly would raise the volume. Putting the phone down and moving away would switch the audio output to the speaker, and moving further away would increase the volume from the speaker. The phone’s sensor could also adjust the frequency of the sound depending on your distance from the device so that the quality of the audio is maintained. The phone might detect your distance by measuring infrared light, low-intensity sound waves, or by calculating how much light bounces off from you and hits the sensors, therefore automatically adjusting the volume. 

 

Source: http://appleinsider.com/articles/13/05/28/apple-patent-automatically-adjusts-iphone-speaker-volume-based-on-proximity

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