HE-AAC v1/v2 Encoder/Decoder

Product Overview

HE-AAC v1/v2 is an international standard for lossy compression audio codecs, widely used as a distribution format for music data and a digital broadcast audio format.

This product is a software IP with low power consumption, low memory consumption, and can be embedded in a short period of time. It is suitable for the products such as portable music players, car audios, digital cameras, and camcorders.

Model Numbers

Encoder: TM1365
Decoder: TM1366


  • Low power consumption operation by reduction of arithmetic processing with TMC’s original computer algorithm “DMNA”.
  • Tuned with high sound quality from low bit rate to high bit rate.
  • Compliant to ARIB standard, applicable to digital broadcasting equipment including one-segment.
  • Can be implemented in various processors including ARM.
  • Easy to embed by simple API interface, contributing to shortening the development period.
  • Thread-safe library, simultaneous encoding and decoding of multiple streams.
  • HE-AAC v1 encoder / decoder with reduced code amount and memory consumption are also available, by omitting the v2 specific part.


Software IP Form C language library
Compliant Standard ISO/IEC 13818-7 (MPEG-2), ISO/IEC 14496-3 (MPEG-4)
Audio Profile LC Profile + SBR + PS (MPEG-2)
HE-AAC v2 Profile Level2 (MPEG-4, AOT: AAC LC + SBR + PS)
Sampling Frequency 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
Bit Rate (Encoder)
  • Max. 80kbps (up to 12kHz)
  • Max. 160kbps (16 to 24kHz)
  • Max. 320kbps (32kHz or above)

Note: All above values are listed in ABR.

Bit Rate (Decoder) Supporting up to the upper limit of the standard, supporting VBR
Channel Configuration Monaural, stereo, dual monaural
Input / Output Data Format 16-bit linear PCM

Application Examples