14-stereo AAC-LC Audio Encoder

Overview

The IPB-AAC-LC-ME-14 is an IP core for encoding up to 14 stereo audio streams in real-time, in one of the following configurations: 14 stereo channels or 12 stereo channels and a 5.1 channel.
The IPB-AAC-LC-ME-14 software requires an audio engine platform named IPB-PLAT-71, which includes 7 processors and one accelerator.
The encoder can be configured, run and monitored by means of a configuration, control, and status register file accessed by APB or SPI.

Key Features

GENERIC FEATURES
- All encoders use the Fraunhofer IIS software
- Configurable output latency useful to synchronize with other sources (up to 8 frames)
- Software interface protocol for control, configuration and monitoring
- Parameter change without stopping the encoding process
AAC-LC STEREO FEATURES
- AAC-LC encoders are compliant with the ISO/IEC 13818-7, ISO/IEC 14496-3 and Japanese ARIB standard
- Supported channel modes: mono, stereo and dual mono
- Supported sample rates: 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48 kHz
- Maximum 16-bit input audio resolution
- Minimum latency: 1 frame
- Supported transport types: raw, ADIF, LATM/LOAS and ADTS (with ARIB support and CRC)
- Supported bitrate control modes: fixed framing, constant bitrate and variable bitrate
AAC-LC 5.1 FEATURES
- MPEG2/4 AAC-LC are compliant with the ISO/IEC 13818-7, ISO/IEC 14496-3 and Japanese ARIB standard
- Supported channel modes: mono, dual mono, stereo (2.0), 2.1, 3.0, 3.1, 4.0, 5.0, and 5.1
- Supported sampling rates: 8, 16, 22.05, 32, 44, 44.1 and 48 kHz
- Maximum 16-bit input audio resolution
- Minimum latency: 1 frame for up to 2 channels, 2 frames for more than 2 channels per stream
- Supported transport types: raw, ADIF, LATM/LOAS and ADTS (with ARIB support and CRC)
- Supported bitrate control modes: fixed framing, constant bitrate and variable bitrate

Block Diagram

Deliverables

Optimized netlist for the target FPGA
Software manual
Hardware datasheet
Synthesis constraints

Technical Specifications

Foundry, Node

All

Maturity

FPGA proven

Availability

Now

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