Development and fixed-point implementation of a multiband dynamic range compression (MDRC) algorithm

Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154) Pub Date : 2000-10-29 DOI:10.1109/ACSSC.2000.910991

N. Magotra, S. Kamath, F. Livingston, M. Ho

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引用次数: 8

Abstract

This paper describes the development and real-time, fixed-point implementation of a Multiband Dynamic Range Compression (MDRC) algorithm on a 16 bit fixed-point platform-Texas Instrument's TMS320C54X. This algorithm has been designed primarily for use in hearing aid applications. It has been implemented on a prototype evaluation system that operates by default in a stereo mode with a minimum sampling rate of 20 KHz per channel. The paper also describes a new algorithm development software environment developed at Texas Instruments to facilitate the task of implementing complex Digital Signal Processing (DSP) algorithms on its DSP chips. This tool is known as eXpress DSP Algorithm Standard (XDAIS). Developing an algorithm that is XDAIS compliant facilitates the easy integration of the algorithm into a system. It also simplifies porting the algorithm to other applications or systems. For example, the XDAIS compliant MDRC algorithm, designed originally for hearing aid applications, could easily be ported for other audio or sensor data processing applications.

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多频带动态范围压缩(MDRC)算法的开发与定点实现

本文介绍了一种多频带动态范围压缩(MDRC)算法在德州仪器公司的TMS320C54X 16位定点平台上的开发和实时、定点实现。该算法主要是为助听器应用而设计的。它已在一个原型评估系统上实现，该系统默认以立体声模式运行，每个通道的最小采样率为20 KHz。本文还介绍了德州仪器公司开发的一种新的算法开发软件环境，以促进在其DSP芯片上实现复杂数字信号处理(DSP)算法的任务。这个工具被称为eXpress DSP算法标准(XDAIS)。开发与XDAIS兼容的算法有助于将算法轻松集成到系统中。它还简化了将算法移植到其他应用程序或系统的过程。例如，最初为助听器应用设计的符合XDAIS的MDRC算法可以很容易地移植到其他音频或传感器数据处理应用中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154)

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