With the rapid development of dsp technology , it has become a powerful tool in the wideband speech signal processing , which makes it possible to implement the complex algorithms for wideband speech in real time Dsp技术的高速发展为宽带语音信号处理提供了强有力的工具,使得较为复杂的宽带语音编解码算法的实时实现成为可能。
The results of simulation indicated speech signal processed by the optimum algorithm presents obvious periodicity in time domain , and effect of the formant is removed or restrained effectively in frequency domain 处理后的语音信号在时域上表现出明显的周期性特征,同时在频域上也观察到声道的共振峰结构影响得到消除或有效的抑制。
Signal estimation theory for discrete stochastic systems with multiplicative noises ( smn ) is very important in many applications such as oil seismic exploration , underwater remote targets detection and speech signal processing 带乘性噪声系统的最优估计理论在石油地震勘探、水下目标探测、语音处理等诸多领域都有重要的应用价值。
Speech signal is one of the most important methods for people to get and utilize information . speech signal processing is a new cross - subject that process speech signal using digital signal processing technology , and it is a all - around application based on many subjects 提出一种基于支持向量回归的转换方法,与传统的多项式回归、线性多变量回归做了对比实验,并分别从主观和客观两方面进行了评估。
With the great progresses and series of break - through in vlsi technologies , integrated dsp comes . integrated dsp has lots of advantages , such as low power cost , compactness , higher working speed and so on . dsp are very suitable in speech signal processing 随着超大规模集成电路技术上取得的突破进展,高度集成化的dsp数字信号处理器具有体积小、功耗低和运算速度快等诸多优点,因此非常适用于语音信号的压缩处理。
By using computer network , distributed multimedia database , speech signal process and computer graphics technologies , this project use non - diving into virtual reality technology to implement virtual radio detection work environment through the simulation of electromagnetic environment , receiver and recorder among radio detection work to make those who take part in training immerse in similar training environment as real detection work and achieve the same training effect as in real detection work 本课题采用计算机网络、分布式多媒体数据库、语音信号处理和计算机图形学等技术,运用“非投入”式虚拟现实技术方法,通过对无线电监测工作中电磁环境、接收机和录音机的仿真,实现了无线电监测人员工作环境的虚拟,从而使参训人员投入到与监测工作实际相近的训练环境、达到与实际监测工作相同的训练效果。
The main aim of speech signal processing is speech coding , speech recognition and speech understanding by automaton . in this paper , firstly , some basic signal process are discussed , such as signal filter , sampling , fft , pitch detection , then , they are tested on the testing board designed by the author 论文中首先对语音信号的基本处理问题进行了分析和对比,然后在自己设计的基于tms320vc5402的dsp实际系统上,进行了语音处理过程的滤波、采样、傅立叶变换和谱包络提取的算法实现研究,讨论了在算法的dsp实现方法,分析了运行实验结果。
In contemporary digital times , the research about mandarin digit speech recognition is more and more noticed , since some aspects by digital technique , such as speech intensification , speech transmission , speech recognition , speech synthesis and speech deposit , are the front parts of speech signal processing , of which mandarin digit speech recognition is an important part , and used in many areas 在当今数字化的信息时代,用数字化的技术进行语音的增强、传送、识别、合成、存储已成为语音信号处理技术的学科前沿,汉语数码语音识别是这前沿中重要的部分且用途很广,因此,汉语数码语音识别的研究日益受到重视。本文就是在这种情况下对汉语数码语音识别做了一些研究。
In many cases of speech signal processing , the problem of speech detection is involved , such as objective assessment of speech quality in communication systems , encoding and decoding of speech signals , speech recognition and single channel speech toning etc . actually , the practicality of speech signal processing techniques is strongly demanded in many fields , especially the objective assessment technique of speech quality to assess the performance of speech system expediently , rapidly and reliably , has become the goal of researchers world wide 在语音处理的许多场合,例如通信系统语音质量客观评价、以及语音编解码、语音识别和单信道语音增强等领域,都涉及到语音的起点检测这一问题。当前,各领域对语音信号处理技术的实用化都提出了强烈的需求,特别是用以方便、快捷、可靠地评价各种语音系统性能优劣的语音质量客观评价技术,更是成为国内外研究者共同努力的目标。
It can reduce the bit rate greatly and achieve reconstruction speech with high level quality . based on system analysis , a scheme of telephone gateway interface is presented using tetra system as an example to divide the interface into two parts : interface signal processing and speech signal processing by different functions whose hardware structures are designed by using mcu and tms320vc5410 as cores respectively 在系统分析的基础上,以tetra系统为例,设计了一种电话网关接口的组成结构,将整个接口单元按主要功能分为接口信号处理和语音信号处理两部分,并提出了分别采用以单片机和ti公司的tms320vc5410dsp为核心的硬件单元进行实现的设计方案。