AAC decoder

AAC decoder features

• The AAC decoder implementation supports the following:

• Supported profile : AAC-LC

• Sampling rate : 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz

• Channel : stereo and mono

• Bits per samples : 16 bit

• Container format : (MPEG-2 Style)AAC transport format - ADTS and ADIF.

Specification and reference

Performance

Memory information

The memory usage of the decoder in bytes is:

• Code/flash = 26332 + 19264 = 45596

• Data/RAM = 26832

Section	Size
.text	26332
.ro & .const	19264
.bss	26832

CPU usage

• CPU core clock in MHz: 20.97.

Track type	Duration of track in second	Frame size in bytes	Performance MIPS of codec (in MHz)
48 kHz, stereo	38 s	4096	12.2 MHz