Apple looking to improve iPhone handset/earpiece audio quality
TweetFollow Us on Twitter

Apple looking to improve iPhone handset/earpiece audio quality

An Apple patent (number 201200177222) for dynamic audio parameter adjustment using touch sensing has appeared at the U.S Patent & Trademark Office. It's designed to improve audio quality in headsets and earpieces for the iPhone.

Per the invention, an audio communications device has a handset in which a touch sensing ear piece region is coupled to an acoustic leakage analyzer. The acoustic leakage analyzer is to analyze signals from the touch sensing ear piece region and on that basis adjust an audio processing parameter. The latter configures an audio processor which generates an audio receiver input signal for the device.

Here's Apple's background and summary of the invention: "People have long been accustomed to making telephone calls using a handset whose earpiece portion the user typically presses up against her ear (in order to better hear the voice of the other party.) As mobile phones became prevalent, the acoustic system that delivers sound to the user's ear was faced with a variety of environmental conditions, in particular varying levels of background noise.

"A mobile phone might be used in a quiet room until the user walks outside to a noisy street. The intelligibility of sound from the earpiece (produced by the so-called receiver or earpiece loud speaker) is reduced when there is a raised ambient noise level. In addition, it is typical for the user in that case to want to press the handset more firmly to his ear. If the receiver is too loud, the user may pull back or lift off the handset to move the earpiece away from her ear.

"The earpiece has been conventionally designed in such a way that it produces good sound pressure and quality, when it is mostly sealed or in a particular sealing condition against the user's ear. If there is a larger gap, that is a larger leak between the earpiece and the user's ear, this usually causes a significant weakening of the sensed sound pressure.

"Manufacturers try to ensure that the volume and frequency distribution of the sound from the earpiece is in accordance with their specification, in actual or real operating conditions where the earpiece is rarely completely sealed against the user's ear. In other words, the handset has to have the ability to tolerate or adapt to such acoustic leakage in its earpiece region.

"Typically, several techniques have been used to improve acoustic leak tolerance. In one technique, a loose coupling is arranged to the receiver (which produces the sound waves in the earpiece region). The receiver in that case is acoustically loaded by a relatively large volume that is as large as possible. Another way to improve leak tolerance may be to lower the acoustic output impedance of the earpiece arrangement by using an acoustic return path.

"In another solution, an acoustic sensor is added to measure the sound pressure that is present in the acoustic interspace between the earpiece region and the user's ear. A control circuit compensates for the measured loss in sound pressure that is caused by an acoustic leak, to keep the subjective impression of the loudness level (and thus the intelligibility of the speech signal), always approximately in the same range. The subjective impression of the loudness level depends not only on the total power of the acoustic signal, but also on the distribution of the energy within its signal spectrum.

"In accordance with an embodiment of the invention, the handset of an audio communications device has a touch sensing earpiece region. An acoustic leakage analyzer is coupled to the touch sensing earpiece region, to analyze signals from the region and on that basis adjust an audio processing parameter (that is used by an audio processor to generate an audio receiver input signal for the device). This allows the device to automatically adjust the audio processing parameter to compensate for acoustic leakage between the user's ear and the earpiece region."

Shaohai Chen is the inventor.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

How to become the ultimate robot warrior...
Chrono Strike is a delightfully immersive beat ‘em up with a sense of humor (any game with a good Sims reference gets points in my book). [Read more] | Read more »
Tips and tricks to get a higher score in...
Snow Roll is a devilish endless runner very much in the vein of Flappy Bird. It revels in its dastardly level of difficulty, and doesn’t really care how angry you get at it as it knows you’ll keep coming back for more. [Read more] | Read more »
How to win big in Slots Deluxe
Cheating while gambling is illegal and morally wrong, and in some parts of the world it leads to men with names like Vinnie "Six Knuckles" Manchenzo beating you to a pulp in a dark alley. [Read more] | Read more »
How to take over the world in Dictator 2
Running a country isn't easy - especially when you're a dictator who wants to take over the world and crush everyone in your path while you do it. [Read more] | Read more »
Tips and tricks to get a higher score in...
Tank.iois - you guessed it! - another multiplayer arena battler likeAgar.io and Slither.io. It does differentiate itself by putting you in a tiny tank though, so it's not exactly the same. To help you get that all-important high score, we've got a... | Read more »
How to unlock characters in One Tap Tenn...
As the title suggests, One Tap Tennis requires only a single tap to play its particular brand of tennis, and rewards you with a ton of unlockable characters if you perform well. Fortunately for you, we at 148Apps have got a few tips and tricks to... | Read more »
Grab it now: Game Craft’s Legend of War...
The real time strategy game is now available for you to sink your teeth into, through the App Store and Google Play. Combining elements of skill, strategy and empire building, Legend of War is a real gamers’ game. [Read more] | Read more »
Skateboard Party 3 ft. Greg Lutzka (Gam...
Skateboard Party 3 ft. Greg Lutzka 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Skateboard Party is back! This third edition of the popular sports franchise features professional skater... | Read more »
Cubious (Games)
Cubious 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: Cubious – How smart are you? How high is your IQube? Solve the impossible puzzles to find out, and help a lost little cube find his... | Read more »
Goat Simulator Waste of Space (Games)
Goat Simulator Waste of Space 1.1 Device: iOS Universal Category: Games Price: $4.99, Version: 1.1 (iTunes) Description: ** IMPORTANT - SUPPORTED DEVICESiPhone 4S, iPad 2, iPod Touch 5 or better.** | Read more »

Price Scanner via MacPrices.net

12-inch 1.2GHz Space Gray Retina MacBook avai...
Amazon has the new 12″ 1.2GHz/512GB Space Gray Retina MacBook (Apple model #MLH82LL/A) available for $1549 including free shipping. Their price is $50 off MSRP. B&H has the 12″ 1.2GHz/512GB Space... Read more
Apple refurbished Mac Pros available for up t...
Apple has Certified Refurbished Mac Pros available for up to $600 off the cost of new models. An Apple one-year warranty is included with each Mac Pro, and shipping is free. The following... Read more
Enterprise Workers Pick Technology Over Perks...
New Adobe study shows surprising attitudes about office jobs and where the future of work is heading. Adobe has released survey findings revealing that a surprising 70 percent of U.S. office workers... Read more
Memorial Day Weekend Sale: $50-$100 off 11-in...
B&H Photo has 13″ and 11″ MacBook Airs with 256GB SSDs on sale for $50-$100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 11″ 1.6GHz/256GB MacBook Air: $999 $100 off MSRP... Read more
Memorial Day Weekend Sales: Apple MacBook Pro...
B&H Photo has 13″ and 15″ Retina MacBook Pros on sale for up to $210 off MSRP. Shipping is free, and B&H charges NY tax only: - 15″ 2.2GHz Retina MacBook Pro: $1799 $200 off MSRP - 15″ 2.5GHz... Read more
Memorial Day Weekend Sales: Apple iMacs and M...
Take up to $150 off the price of a new iMac or Mac mini at the following Apple resellers this Memorial Day weekend: iMacs: B&H Photo has 21″ and 27″ iMacs on sale for up to $150 off MSRP... Read more
Apple refurbished Retina MacBook Pros availab...
Apple has Certified Refurbished 2015 13″ and 15″ Retina MacBook Pros available for up to $380 off the cost of new models. An Apple one-year warranty is included with each model, and shipping is free... Read more
Apple refurbished 11-inch MacBook Airs availa...
Apple has Certified Refurbished 11″ MacBook Airs (the latest models), available for up to $170 off the cost of new models. An Apple one-year warranty is included with each MacBook, and shipping is... Read more
Goal Zero and OtterBox Partner to Expand iPh...
Goal Zero, specialists in portable power, have announced a partnership with OtterBox, brand smartphone case protection, to offer the Slide and Slide Plus Batteries as modules compatible with the new... Read more
15-inch Retina MacBook Pros on sale for up to...
B&H Photo has 15″ Retina MacBook Pros on sale for up to $210 off MSRP. Shipping is free, and B&H charges NY tax only: - 15″ 2.2GHz Retina MacBook Pro: $1799 $200 off MSRP - 15″ 2.5GHz Retina... Read more

Jobs Board

*Apple* Project Engineer - Smart Source Inc...
SmartSource is in need of an Apple Project Engineer for a 12 month contract opportunity in Pittsburg, PA. Role: Apple Project Engineer Location: Pittsburg, PA Read more
Senior *Apple* Engineer - Signature Technol...
One-year contract for an Apple consultant. The resource should be an Apple Certified Technical Coordinator or get the certification within 60 days of starting Read more
Senior *Apple* Engineer - Signature Technol...
One-year contract for an Apple consultant. The resource should be an Apple Certified Technical Coordinator or get the certification within 60 days of starting Read more
*Apple* Architect - AECOM (United States)
**Requisition/Vacancy No.** 132759BR **Position Title** Apple Architect **Job Category** Information Technology **Business Line** Government **Country** United Read more
*Apple* Solutions Consultant - APPLE (United...
Job Summary As an Apple Solutions Consultant, you'll be the link between our future customers and our products. You'll showcase your entrepreneurial spirit as you Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.