Analysis and implementation of a cost effective voice encoder for conversion of G.711, G.723 and G.729 for up to 128 simultaneous voice channels. Industry: Tele communication 

• Description:
• * Requirements specification, technology analysis and recommendation of suitable technology. 
• * Implementation of voice encoding system based on Nios-II in an FPGA.
• * Integration of an IP-core in the FPGA, ADPCM-core from Amphion.
• * Test environment with prototype card and software for test and debug.
• * Support for integration of the FPGA-system into a product.

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• Tools, Methods and Technology:
• * DSP-solutions from Texas Instruments and Analog Devices.
• * Altera Quartus-II with SOPC-builder.
• * Amphion ADPCM IP-core.
• * VHDL-93.
• * Nios-II with software developed in Alteras Eclipse based environment.
• * CVS for revision management.

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• Result:
• * Voice Encoder for VoIP-gateway implemented in FPGA.