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TI, Mistral team up on virtual CD changer ref design

Posted: 19 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Mistral? Texas Instruments? TI? reference design? Aureus?

Saying the solution could eventually replace mechanical CD changers in automobiles, Texas Instruments Inc. and India's Mistral Software Ltd recently introduced a virtual CD changer reference design built on TI's Aureus audio digital DSPs.

A virtual CD changer rips and stores music from CDs, making it less expensive, easier to use and more reliable than traditional CD-changer audio systems, according to TI. But the virtual changer has the same look and feel of a traditional CD changer, the company said.

The TI-Mistral reference design supports several media interfaces, premium surround sound capabilities and multiple audio formats, including MP3, TI said.

The reference design was developed with high-speed encoding technology to rip CDs at a high rate and store it to a fixed or removable storage device, according to TI. The solution can achieve a ripping/encoding rate of four times real time or better, depending on the CD mechanism, the company said. The solution features a simultaneous decoding feature, allowing users to listen to audio while CDs are being ripped, TI said.

The reference design can be configured to work with the most common compressed audio formats, including MP3, WMA, MPEG4-AAC and ATRAC, according to TI. It can also be configured to include a number of fixed and removable media options, such as NAND flash, USB and SD, the company said.

By replacing the mechanical CD changer with solid-state components, the reference design eliminates moving parts and reduces the overall component count of an automotive head unit, TI said. To further reduce system cost, the Aureus DSP directly controls the peripherals, such as the CD loader, NAND flash, USB and SD, eliminating the need for a microcontroller, the company said.

The virtual CD changer reference design is immediately available from TI and Mistral, TI said. Mistral offers custom software and hardware design services to help tailor the virtual CD changer solution for a particular application and form factor.

- Dylan McGrath
EE Times

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