Why Apple’s A5 is so big–and iPhone 4 won’t get Siri

iPhone | Thursday February 2 2012 5:42 PM | Comments (0) Tags: , ,

Why Apples A5 is so big--and iPhone 4 wont get Siri

A diagram of Audience's sales pitch: identify the speaker's voice and isolate it from background noise.

(Credit:
Audience)

Apple ‘s A5 processor includes noise-reduction circuitry licensed from a start-up called Audience, and a chip analyst believes that fact resolves an iPhone 4S mystery and explains why the iPhone 4 lacks the Siri voice-control system.

Audience revealed details of its Apple partnership in January, when it filed paperwork for an initial public offering (IPO) of stock. Teardown work from iFixit and Chipworks revealed a dedicated Audience chip in the iPhone 4, but the iPhone 4S integrates Audience’s “EarSmart” technology directly into the A5 processor, the company’s S-1 filing said.

The details answered a question that Linley Group analyst Linley Gwennap had about the A5 chip that powers the iPhone 4S: why is it so big? Larger processors are more expensive and can consume more power, and chip designers strive to trim every last square millimeter fr… [Read more]

Why Apples A5 is so big--and iPhone 4 wont get Siri

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