Algorithm and Program Flow for CVSD Speech Compression

Algorithm and program flow for CVSD speech compression. The quantization step δ features adaptive control that dynamically scales according to the average slope magnitude of the input signal, allowing decoded output signals to achieve near-ideal approximation of the original input. To further enhance CVSD modulation performance, we implemented an efficient CVSD modulation scheme in programmable logic devices (FPGA) using a hardware description language (HDL) approach. This implementation incorporates key algorithmic components including slope detection logic, step-size adaptation modules, and continuous variable modulation circuits. Through this architecture, we achieve superior speech compression while maintaining high audio quality output. The technology demonstrates broad application prospects and is poised to bring significant advancements to voice communication and audio processing fields through its real-time processing capabilities and hardware-optimized design.