WB AMR Speech codec by CONSILIENT TECHNOLOGIES PVT LTD

Audio and Voice Solutions

Product Description

The WB-AMR codec utilizes the principle of Algebraic Code Excited Linear Prediction algorithm. The WB-AMR speech codec consists of nine modes with bit-rates of 23.85, 23.05, 19.85, 18.25, 15.85, 14.25, 12.65, 8.85 and 6.60 kbits/s. It operates at 16kHz sampling rate and sends out encoded data bits every 20ms.

This firmware complies with the different applicable 3GPP standards, and has been tested for compliance with bit-exact test vectors. It is C-callable and frame level reentrant. WB-AMR library (encoder and decoder) takes about 70MIPS on arm9e processor. This firmware can support multi-channel operation of the WB-AMR codec on ARM based platforms, with the number of channels limited only by the availability of processor resources.

WB AMR Speech codec

Market Segment(s)

• Embedded
• Mobile

Target Platform(s)

• Android
• Linux

ARM Processor(s)

• ARM946E-S
• Cortex-A9
• Cortex-M4
• ARMv5
• ARMv6
• ARMv7

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