WMA Encoder

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Tensilica’s WMA Encoder Application Package

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The WMA Encoder package for the Xtensa HiFi Audio DSPs implements 24-bit encoding of high-, mid-, and low-rate WMA data streams as well as the encoding of ASF (Advanced Streaming Format) data streams. The encoder is a fixed-point implementation written in C and available in either object or source code. Included documentation describes how to incorporate the decoder into a system. Using this package, system developers can integrate a WMA encoder into an SOC without the need for additional optimizations or software development. The same Xtensa HiFi Audio DSPs are used for other Tensilica audio codecs, enabling the development of highly optimized multi-standard audio SOC designs.

Feature Summary

  • Fully compliant with to Microsoft WMA test specifications
  • High-, mid- and low-rate WMA data streams
  • ASF (Advanced Streaming Format) support

Specifications


Clock Rate*
Code Size (ROM)
Table Size (ROM)
Total RAM**
49 MHz 127 Kbytes 105 Kbytes 208 Kbytes

Based on 44.1 KHz sample rate, 128 Kbps.
*MHz required for single-cycle memory.
**Total RAM includes data memory, stack, application program and I/O buffers.

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