WMA Pro is said to provide "premium audio fidelity to the PC or digital set-top box" with support for 5.1- and 7.1-channel digital audio signals at 24 bit and 96-kHz. A typical application involves using a single digital or optical cable to stream WMA Pro audio content from a Windows-based PC to the audio/video (A/V) receiver within a home theater system.
SigmaTel's codec chips are sold to OEMs for integration into "PC-like products" based on Windows. They are fully supported with driver software for all relevant Windows versions. Drivers are also available for Windows CE that can be adapted to different processor architectures "relatively easily," according to a company spokesperson.
The C-Major codec line is based on the Intel AC'97 2.3 specification and supports "Universal Jacks," a feature that is said to recognize and automatically configure microphones, headphones, and speakers as they are connected to the PC. SigmaTel says this improves ease of use while decreasing support costs.
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