AAC Decoder by AllGo Systems

Audio and Voice Solutions

Product Description

 

Introduction

AAC stands for Advanced Audio Coding, a part of MPEG4 (ISO/IEC 14496-3) andMPEG2 (ISO/IEC 13818-3) standards published by ISO/IEC. AAC supports sampling frequency from 8 to 96 khz and bitrates up to 576 kbps.

AAC decoding process consists of the following steps:

·         The bit-stream is parsed, huffman decoded and dequantized to get transform domain samples

·         The samples are converted to time domain using Inverse Modified Discrete Cosine Transform (IMDCT

Salient Features

·         MPEG4 AAC-LC (Low Complexity ) decoder

·         Channels: 5.1

·         Fully compliant with ISO/IEC 14496-3

·         Sampling rates: 8 to 96 khz

·         Bit rates: Supports all the bit rate as per  ISO/IEC 14496-3

·         Little endian

Benefits

·         Low Mhz

·         Supports raw, adts and adif file formats

·         Built in Error handling to take care of corrupted bit-streams. Tested for various types of corrupted bit-streams

·         Re-sync support for FF/Rwd (with ADTS header)

·         Multi instance and re-entrant implementation

·         Simple API interface

·         Ported and tested on hardware platform with linux OS

Applications

·         Portable audio players

·         Streaming

·         Mobile phones

·         Gaming consoles

·         Broadcast audio

AAC Decoder

Market Segment(s)

• Embedded
• Mobile

Target Platform(s)

• Android
• Linux
• QNX
• Windows Embedded CE

ARM Processor(s)

• ARM926EJ-S
• ARM1136J-S
• Cortex-A53
• Cortex-A57
• Cortex-A8
• Cortex-A9
• ARMv8

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