dsp

Why Apple's A5 is so big--and iPhone 4 won't get Siri

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 … Read more

Meridian digital hi-fi setup goes ruby-red

For well-heeled fans of British hi-fi brand Meridian, the limited-edition 40th Anniversary System could be a dream. With a unique ruby-red finish, the company's latest hi-fi system consists of a tweaked 808.3 Signature Reference CD Player and a pair of DSP8000 Digital Active Loudspeakers.

Both the speakers and CD player are the company's flagship models. While there are analog purists who prefer a full-analog hi-fi setup, Meridian caters to fans of pure digital. This set keeps your music in the digital format right up to the moment it reaches the speaker drivers.… Read more

BMW M5 generates fake engine noise using stereo

For a driving enthusiast, there's nothing like the throaty roar of a well-tuned engine. However, as vehicle noise regulations, technological advances, and general increases in build quality have continued to make vehicles ever quieter both outside and inside, some automakers have been seeking ways to preserve and enhance the visceral sound of an angry engine for their performance-oriented models. For example, Ford includes a sort of sound pipe that channels induction noise into the Mustang's cabin. BMW, on the other hand, has taken a different approach with the new M5's Active Sound Design technology, which artificially replicates … Read more

Add iPhone playback (and a massive subwoofer) to any car with Sony Digital Link Sound System

Hot on the heels of its freshly updated lines of CD car audio receivers and mechless decks, Sony has just unveiled an iPod/iPhone integration kit for those who want to keep their car's stock head unit in place. More accurately, the Digital Link Sound System is a collection of car audio technology that has been bundled for easy purchase and optimized to work together.

There are actually two Digital Link Sound System packages available. The first is the XDP-MU110, which comes in three parts: the DSP master unit, an iPhone cradle, and a remote controller.

The DSP installs … Read more

JBL MS-8 optimizes your car's stock audio system

Upgrading your car's stereo used to be a simple affair. You'd yank the radio out, pop in a new receiver, and be back on the road listening to your new tunes within a few hours. However, with today's increasingly integrated car technology setups, removing the stereo could affect other seemingly unrelated vehicle functions, rendering your climate controls useless or activating a vehicle immobilizer system. However, if JBL's MS-8 integrated digital processor performs the way Harman International, JBL's parent company, claims it does, being stuck with a stock stereo may not mean that you're stuck … Read more

New video-editing software gets multiframe tech

MotionDSP, the company that offered a novel approach to improving photos and video through its now-discontinued FixMyMovie Web site, plans to release a promised version of its software for personal computers.

The $49.99 software program, called vReveal, analyzes a video's adjacent frames and combines the data to create a higher-quality version. This can bring out details in dim areas, correct camera shake, and remove noise and blocky compression artifacts, the company said. The software also can rotate videos, increase video resolution, and extract still images.

In addition, the company said the software can employ the CUDA (Compute Unified Device Architecture) technologyRead more

Dolby Pro Logic IIz adds vertical dimension to surround sound

Dolby has a new surround format: Pro Logic IIz.

Here we go again. Another new format with more speakers, but this time, the "surround" speakers are in the front of the room, three or four feet above the left-and right-main speakers. These height channels are designed to provide a greater sense of envelopment than previous generations of Dolby or DTS surround.

Pro Logic IIz incorporates all of the features and capabilities of Pro Logic IIx.

"Expanding on established Dolby Pro Logic II matrix-decoding innovations, Dolby Pro Logic IIz identifies and decodes spatial cues that occur naturally in all content--stereo and 5.1 broadcast, music CDs, DVDs, 5.1 and 7.1 Blu-ray Discs, and video games," the Dolby site further explains. "Dolby Pro Logic IIz processes low-level, uncorrelated information--such as ambiance and some amorphous effects like rain or wind--and directs it to the front height speakers."

You don't have to buy new, specially encoded discs to experience Pro Logic IIz, but do you really want to buy another pair of speakers, wall-mount them, and run a pair of speaker wires up your wall, to the sides of your TV?

Dolby doesn't require the height speakers to be identical to the main-left or -right speakers. Some Pro Logic IIz systems will use a total of nine speakers (five front, four rear), plus one or more subwoofers.

Onkyo's TX-SR607 ($599 MSRP) is the first receiver to feature Pro Logic IIz; the company will soon offer additional models equipped with the new Dolby processor, to be announced later this year.

Then again, Yamaha's higher-end receivers have had height, aka "Presence," channels for years. Those extra speakers supplement the sound from the front speakers with ambient effects produced by Yamaha's proprietary Cinema DSP, which provides various multichannel configurations up to 11 channels. Obviously, Dolby's Pro Logic IIz uses different technology, though the end result may be similar. … Read more

FixMyMovie forsakes the cloud for PC software

FixMyMovie, an online service that let people improve the quality of their videos, is going offline.

"We're shutting down FixMyMovie.com on December 31, 2008. In its place, we're launching a new Windows desktop application, code-named Carmel, which will be released in the first quarter of 2009," said MotionDSP, which runs the site, in an e-mail to site members Friday. "If you have uploaded any videos to FixMyMovie that you'd like to keep, we recommend that you use the 'Download' option before December 31 for each fixed movie that you'd like to save.&… Read more