content here.
content here.

MPEG-4 HE-AAC v2 Decoder (with DAB+ and DRM support)

MPEG-4 HE-AAC v2 decoder (with DAB and DRM support) is the combination of Advanced Audio Coding (AAC), Spectral Band Replication (SBR) and Parametric Stereo (PS), standardized as the High-Efficiency v2 profile in MPEG-4 (HE AAC v2). The MPEG-4 HE-AAC v2 (with DAB and DRM support) is backward compatible with AAC-LC.

This version of the HE-ACC v2 decoder implements the baseline version ...More

MPEG-4 HE-AAC v2 Decoder (with DAB+ and DRM support)

Product Description

MPEG-4 HE-AAC v2 decoder (with DAB and DRM support) is the combination of Advanced Audio Coding (AAC), Spectral Band Replication (SBR) and Parametric Stereo (PS), standardized as the High-Efficiency v2 profile in MPEG-4 (HE AAC v2). The MPEG-4 HE-AAC v2 (with DAB and DRM support) is backward compatible with AAC-LC.

This version of the HE-ACC v2 decoder implements the baseline version of the PS tool. For streams not containing Parametric Stereo data, this decoder uses the High Quality (HQ) SBR tool. It also supports the ETSI DAB standard, which specifies a Digital Audio Broadcasting system requiring a HE-AAC v2 decoder that can handle 960 samples per frame within the core AAC-LC codec, and implementation of error concealment to handle corrupted audio frames. In addition, this decoder provides optional processing of Dynamic Range Control (DRC) to make use of any DRC information signalled in the bitstream. The library can also be configured to decode AAC-LC input streams as such that resource usage is optimal.

RESOURCES & TOOLS

What is your task? Try Lead the Way AdvisorTM BETA
Td

TECHNICAL DOCUMENTATION

Eb

EVALUATION BOARDS & DEVELOPMENT KITS

Ts

TOOLS, SOFTWARE & SIMULATION MODELS

Features

back to top

Functions

back to top

Performance Metrics

MIPS summary:

Application Configuration Code memory (KB) Data RAM (KB) Constant Data Tables (KB) MIPS Average
HEAAC V2 105.34 122.24 59.56 35.96
HEAAC V2 DAB 105.34 181.52 59.56 37.86
HEAAC V2 DRM 105.34 181.52 59.56 39.13
AAC LC (V2 configuration) 105.34 122.24 59.56 17.52
AAC LC (LC Only configuration) 105.34 50.0 59.56 16.41
  • MIPS and Memory layout mentioned above are using a 48kbps,48khz Stereo DAB+ vector 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.
  • ADSP-BF533, ADSP-BF527 and ADSP-BF527 supported.

back to top

Applications

back to top

Requirements

back to top

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.

back to top