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Windows Media Audio (WMA9) Standard Encoder

Windows Media Audio version 9 (WMA9) is a proprietary high quality audio compression standard from Microsoft. ADI’s WMA9 Encoder product supports all the high-bit rates specified by WMA9 version 9 Encoder and is compliant to WMA conformance criteria from Microsoft. WMA is used for audio compression that provides CD quality audio at significant lower bit rates than the original CD data rate. ADI’s ...More

Windows Media Audio (WMA9) Standard Encoder

Product Description

Windows Media Audio version 9 (WMA9) is a proprietary high quality audio compression standard from Microsoft. ADI’s WMA9 Encoder product supports all the high-bit rates specified by WMA9 version 9 Encoder and is compliant to WMA conformance criteria from Microsoft. WMA is used for audio compression that provides CD quality audio at significant lower bit rates than the original CD data rate. ADI’s WMA9 encoder is a high performance encoder that is capable of delivering high quality compressed audio at fast encoding speeds-10x real-time encoding can be achieved on a 500 Mhz ADI DSP Blackfin. WMA Encoder stream is generally encapsulated in Microsoft Advanced Streaming Format (ASF). A flexible ASF library is provided along with WMA9 core encoder library to enable faster software integration. The ASF library has support to add metadata and image tags.

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TOOLS, SOFTWARE & SIMULATION MODELS

Features

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Functions

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Performance Metrics

MIPS summary:

Code memory (KB) Data RAM (KB) Constant Data Tables (KB) MIPS Average
60 156 74 34.4
  • MIPS and Memory layout mentioned above are using a worst case 128kbps,44.1khz Stereo input measured on ADSP-BF548 with optimal layout.
  • "Data RAM" for one instance, includes Stack, Scratch, Instance/Stage, Minimum Input and Output Single Buffers.
  • 1 KB = 1024 Bytes.
  • BF533, BF548 and BF527 supported.

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Applications

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Requirements

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Availability and Licensing

Each module supports the Analog Devices, Inc. (ADI) Blackfin Processor family and is a licensed product that is available in object code format. Recipients must sign a license agreement with ADI prior to being shipped the modules identified in the license agreement.

Contact your ADI Sales Rep to request this code. If you need to find a Sales Rep in your area, please visit the Sales & Distributor Map/Listing.

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