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

Features

• 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.

Specification

Software IP Form	C language library
Compliant Standard	ISO/IEC 13818-7 (MPEG-2), ISO/IEC 14496-3 (MPEG-4)
	ARIB STD-B32
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