AAC ENCODER
Advanced Audio Coding Encoder 
C55x
The Adaptive Digital Technologies MPEG4-AAC (LC/LTP) encoder compresses audio to low bit rates while maintaining near CD quality.
Data sheet - .pdf 
FEATURES
- The given Encoder implements AAC Low complexity (LC) profile of the standard up to 1channels (mono) and 2 channels (stereo).
- The given encoder supports; ADIF (Audio Data Interchange Format), ADTS (Audio Data Transport Stream) and RAW output formats.
- It supports sampling frequency from 8kHz to 96 kHz as specified by the standard.
- It supports all necessary tools and features, so that the given algorithm is standard compliant.
- Compliant with XDAIS specification.
- Rev2/Rev3 specific optimization.
AVAILABILITY
ADT MPEG4 AAC Encoderis available on the TMS320C5000™ DSP Platform
C55x™DSP Generation
SPECIFICATIONS
Sampling Rate: The MPEG4 AAC Encoder supports sampling frequency from 8kHz to 96 kHz as specified by the standard.
Bit Rate: The MPEG4 AAC Encoder supports all bit rates specified by the standard.
C55X
CYCLES INFORMATION –Profiled on TMS320C5510
Configuration |
Test File Parameters |
MIPS(MAX) |
MIPS(AVG) |
MPEG4_AAC_5510 |
64kbps_44.1khz_stereo |
71.74 |
63.13 |
MPEG4_AAC_5510 |
64kbps_44.1khz_mono |
41.53 |
31.36 |
Last update: 10/18/2005
MEMORY STATISTICS
All Memory usage is given in units of kilobytes.
Configuration |
Program Memery |
Constants | Scratch | Instance |
MPEG4_AAC_5510 |
49.27 |
27.57 |
6.25 |
42.88 |
Last update: 10/18/2005
AAR_create(…) creates an instance of the encode algorithm and returns a handle to the object
AAR_encode(…) processes the encoder
ALG_delete(…) delete encode algorithm instance
