Linear mapping (no companding).

线性映射(无压缩)。

In this paper, a new adaptive delta modulation (ADM) method, hybrid companding delta modulation with algorithm (AHDM), is proposed for speech coding.

本文提出了一种新的自适应增量调制（ADM） 话音编码方案——加性混合压扩增量调制（AHDM）。

This paper provides a new method to regulate the step length of FWCM by nonlinear companding in time domain, so that the error distribution can be controlled in circuit simulation.

本文提出一种通过时域非线性压缩-扩张改变FWCM采样步长，实现电路模拟误差分布控制的方法。

Simulation results show that compared with clipping and the traditional companding techniques, threshold-based companding scheme can effectively improve the performance of PAPR with low complexity.

仿真结果表明，与削波技术和传统的压扩技术相比，门限压扩以较小的系统复杂度获得了峰均比性能的改善。