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Texas Instruments (TI) and Mistral Software Ltd. today announced the introduction of a virtual CD autochanger (VCDC) reference design based on the TI AureusTM audio DSP. This reference design will help replace the traditional mechanical CD autochanger in the future, while conventional equipment is often the part of the automotive component that often fails. VCDC is capable of CD grabbing and music storage, which is less expensive, more usable and more reliable than traditional CD autochangers. However, for the user, the new design is the same as the traditional CD autochanger, both in appearance and in use. The reference design supports multiple audio formats and media interfaces for superior surround sound, giving manufacturers the flexibility to meet a wide range of products and features on a single board.The VCDC reference design supports high-speed encoding technology for high-speed CD grabbing and storage in fixed or removable storage devices. The solution enables 4x speed and even faster grab/code, depending on the CD mechanism. 4x encoding means that a 60-minute CD can be stored in just 15 minutes. The end user experience is further enhanced by the ability to decode while listening to music.
Once configured, the VCDC reference design supports not only the most common compressed audio formats (MP3, WMA, MPEG4-AAC, and ATRAC), but also a wide range of fixed and removable media options such as NAND flash, USB and SD. Fixed NAND flash can be used to store CD tracks copied in the car, and then override the overlay and implement advanced features such as time-shifted radio. Removable media options include USB and SD, which allow users to bring CD tracks copied from the car to the home stereo system, and users can also put compressed audio stored on a home computer or digital music player. Car audio to play.
The VCDC reference design replaces the mechanical CD autochanger with solid-state components without the need for moving parts, reducing the overall number of components in the car's audio, enabling higher acoustic reliability and lowering than traditional solutions. cost. To further save system cost, Aureus DSPs also have direct control over peripherals such as CD loaders, NAND flash, USB and SD without the need for a microcontroller.
The Aureus family of DSPs has achieved outstanding results in the home AV receiver market and is widely used by manufacturers such as Harman Kardon, Onkyo and Yamaha. In addition to providing all of the surround sound decoding and post-processing features found in home AV receivers, the VCDC reference design also supports the Neural Surround decoder to help users listen to XM HD surround sound in full surround sound in the car. In addition, TI's Perfect Playback Compressed Audio Enhancer provides a richer, richer sound for compressed audio sources such as MP3, WMA or AAC. The VCDC reference design also supports advanced surround sound algorithms from audio companies such as Dolby, DTS, SRS Labs, and Audyssey Labs.
TI and Mistral software are now offering VCDC reference designs. Mistral offers custom hardware and software design services that adapt VCDC solutions to specific applications and sizes. The combination of reference design and custom software services helps manufacturers accelerate time-to-market. The Aureus Series Audio DSP is available now and is Q100 automotive certified.
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