TTM Two C Tone Modulation

This paper introduces the technique of using PSTN as the transfers medium for remote control where the DTMF is used to get the control command.

文章引用公用电话网作为远程控制信号的传输媒体实施远程遥控的技术,利用双音频信号获取控制命令;剖析如何利用单片机芯片和语音芯片设计电话远程智能遥控系统。

The sound card is used to play the DTMF signal in order to control the multi-media equipment and realize all the functions of the multi-media controller.

研究计算机通过利用双音多频码(即DTMF码)进行控制的多媒体集中控制系统的工作原理,运用计算机声卡播放DTMF双音多频信号来控制多媒体仪器设备,实现多媒体控制器的全部功能,方法简单可靠,使多媒体集中控制系统完全自动化。

Detection of DTMF Signals Based on MATLAB

基于MATLAB的双音多频信号识别

The Multichannel Real-time Audio Signal Processing System Based on TMS320C6713 DSPs;

基于TMS320C6713DSPs的多路实时音频信号处理系统

The Optical-Fiber Transmission System of Multiple Audio Digital Signals

多路音频信号的数字化光纤传输系统

Performance requirements of pushbutton dialer with DTMF

GB/T9035-1988电话用双音多频式按键号盘技术要求

Methods of measurement for pushbutton dialer with DTMF

GB/T12198-1990电话用双音多频式按键号盘测试方法

Tone or Pulse Dialing

设置音频或脉冲信号

AMC audio/modem codec

音频/调制解调器多媒体数字信号编解码器

Study on the Technology of DTMF Communications and Its Applications;

窄带网中双音多频编码通信技术及应用研究

Talking about the Digitalization of Video and Audio Signals and Source Encoding

视频及音频信号的数字化与信源编码

An ISO standard codec for computer audio and video.

它是ISO标准的计算机音频、频多媒体数字信号编解码器。

A method used by the telephone system to communicate the keys pressed when dialling.

双音多频：电话系统拨号时通过按键按下的事件来通讯。

A Method of High Frequencies Reconstruction of Audio Signal Based on Reconstructed Octave

一种基于重构八度音的音频信号高频重建方法

Fourier Domain Multi-Resolution Analysis and Coherence Analysis for Symmetric Dual Channels EES;

对称双通道脑电信号频域多分辨分析和相干分析

Effects of distribution system on the outbound spectrum of TWACS

配电系统对双向工频通信上行信号频谱的影响

A continuous signal, or sound, of one particular frequency.

一种具有特定频率的连续信号或声音。

Performance analysis of echo synchronous signal in audio watermarking

音频水印中回声同步信号的性能分析

Research of Speech Spectrograph Based on DSP;

基于DSP的语音信号频谱分析仪的研究

Musical Istruments Signal Study Based on the Bayesian Algorithm;

基于贝叶斯算法的乐器音频信号研究