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Dolby Headphone v2

Dolby® Headphone is a proprietary algorithm from Dolby Laboratories intended for creating 5.1 realistic surround sound effects on headphones. The Dolby Headphone technology is capable of processing 24 bit/96 kHz audio, such as DVD-Audio, from sources providing up to 7.1 channels. Dolby Headphone can also produce 5.1 surround effects from stereo sources when used in combination with Dolby ...More

Dolby Headphone v2

Product Description

Dolby® Headphone is a proprietary algorithm from Dolby Laboratories intended for creating 5.1 realistic surround sound effects on headphones. The Dolby Headphone technology is capable of processing 24 bit/96 kHz audio, such as DVD-Audio, from sources providing up to 7.1 channels. Dolby Headphone can also produce 5.1 surround effects from stereo sources when used in combination with Dolby Pro Logic II. This module can only be shipped to pre-approved Dolby "qualified recipients."

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Features

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Functions

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Performance Metrics

MIPS summary:

Code memory (KiB) Data RAM (KiB) Constant Data Tables (KiB) MIPS
Average Peak
5.87 6.43 1.51 38.0 38.0
  • MIPS measured using Fs = 48kHz, optimal memory layout, worst case test vector, 7.1 channels and running on a BF537.
  • Code compatible across all BF5xx processors, with silicon anomaly workarounds implemented based on BF533 Silicon Revision 0.3 and later, BF537 Silicon Revision 0.3 and BF561 Silicon Revision 0.4 and later.
  • "Data RAM" for one instance, includes Stack, Scratch, Instance/State, Minimum Input and Output Single Buffers.
  • Input buffer size is 4 KiB and output buffer size is 1 KiB.
  • Frame size considered is 128 samples per channel.
  • 1 KiB = 1024 bytes

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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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