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Tatvik exhibits at Embedded Technology 2009, Yokohama

 

 

 

MPEG-4 BSAC Audio Decoder


Tatvik’s MPEG-4 BSAC (Bit Sliced Arithmetic Coding) Audio Decoder implementation is one of the fast fixed-point implementations for Mobile Platforms. The implementation is efficient in terms of low MIPS and small memory footprint. Tatvik’s BSAC Audio Decoder can be easily integrated in T-DMB solution.     

Features

Tatvik Implementation

Profile

MPEG-4 BSAC (T-DMB Compliant)

Optional Tools

  • Intensity Stereo

  • Mid/side Stereo

  • Temporal Noise Shaping (TNS)

  • Perceptual Noise Substitution (PNS)

Sampling rates

8-48 KHz

Channels

Mono/Stereo

Bit Rate

Any (Compliant with Standard)

Output

16 Bit PCM

Compliance

Compliant with ISO/IEC 14496-4, ISO/IEC 14496-3:2005

Conformance

Verified against ISO bitstream exchange and BSAC streams from T-DMB dump

OS

  • Symbian S60

  • Windows Mobile

  • Windows CE

  • Android

  • iPhone OS X

  • Linux

  • Win XP

Processors#

  • ARM7, ARM9/9E, ARM11

  • Cortex-A8, Cortex-A9

  • XScale, PXA27x, PXA32x

  • MIPS32 4Kec

  • Renesas SH3, SH4

  • Pentium

# For other Processors please contact sales@tatvik.com  

Performance


Tatvik BSAC Audio Decoder implementation has been ported to Symbian OS, WinCE OS and Embedded Linux OS based devices. The detailed benchmark results on ARM Simulator (ARMulator) are shown in the table below:

Sequence Type

MCycles/sec$ on Nokia N93 (ARM11, 330 MHz)

Stereo_48KHz_57Kbps

32.4

Mono_48KHz_32Kbps

25.9

  $ CPU load for core decoding (without file write)
 

For evaluation please contact sales@tatvik.com  


Copyright © 2010 Tatvik Technologies. All rights reserved.

 

February 8, 2010:
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