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DTMF
- DTMF(Dual Tone Multi Frequency)信号是音频电话的拨号信号。由美国AT&T贝尔实验室研制, 双音多频信号编码技术易于识别，抗干扰能力强，发号速度快，且比用modem进行远程传输的方法更为经济实用,因此这种拨号方法取代了传统的脉冲拨号。 电话中的双音多频信号有两种用途：一是用于双音多频信号的拨号，去控制交换机接通被叫的用户电话机；二是利用双音多频信号遥控电话机各种动作，如播放留言，语音信箱。这些都离不开DTMF信号的产生。 有详细的需求分析 功能说明 流程图及代
user
- HT9200双音多频信号的发送,各个功能函数的说明-HT9200 dual tone multi-frequency signal is transmitted
124345678
- matlab dtmf 双音多频信号产生与检测 正确 -matlab dtmf dual tone multi-frequency signal generation and detection correctly
DTMF_Generator_Code(AN)
- DTMF是Dual Tone Multi Frequrency 的缩写，意为双音多频，广泛应用于电话机的拨号上.本文介绍使用单片机生成DTMF信号。-DTMF Dual Tone Multi Frequrency is the acronym meaning dual tone multi-frequency, widely used in telephone dial-up paper describes the use of SCM generate DTMF signals.
DTMF_Receiver_Code(AN)
- 终端交换机将主叫识别信息以移频键控(FSK)或双音多频(DTMF)的信号方式传送给被叫使用者终端设备。本文主要介绍DTMF方式.-Identification information of the calling terminal to the switch frequency shift keying (FSK) or dual tone multi-frequency (DTMF) signal transmitted to the called user terminal equipmen
Lab-03
- DSP 实现双音多频(DTMF)信号的实现，在ccs环境下操作-Dual tone multi-frequency (DTMF) signals to achieve
Lab-05
- dsp实现双音多频(DTMF)信号的检测，在ccs下使用汇编完成-Dual Tone Multi-Frequency (DTMF) signal detection
AVR------MT8880DTMF
- dtmf双音多频收发系统，时序流程-DTMF DTMF transceiver system, flow..........................
DTMF
- 产生、播放DTMF音频，基于Goertzel算法估计DTMF音频，完成双音多频(DTMF)信号的检测-Generating, playing DTMF tones, DTMF tones based on the estimated Goertzel algorithm to detect the completion of dual tone multi-frequency (DTMF) signal
dtmf
- 双音多频 DTMF（Dual Tone Multi Frequency），双音多频，由高频群和低频群组成，高低频群各包含4个频率。-Dual-tone multi-frequency signaling (DTMF) is used for telecommunication signaling over analog telephone lines in the voice-frequency band between telephone handsets and other communic
DTMF
- DTMF模块,双音多频（DTMF）是一种在话音信道用音调来表示数字的方法，它可以用来在模拟话音信道传输信令，因此在通信中有广泛的应用。 -DTMF module, dual tone multi-frequency (DTMF) tones are used to represent a number of ways in the voice channel, which can be used to transmit analog voice channel signaling, it i
DTMF
- 基于MATLAB的双音多频（DTMF）信号的产生、接收以及可视化拨号系统的实现-MATLAB-based dual-tone multi-frequency generation (DTMF) signals, the receiver and dial visualization system
Cpp1
- 双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。DTMF信号有16个编码。利用DTMF信令可选择呼叫相应的对讲机。-Dual tone multi-frequency, high-frequency and low-frequency group composed of groups, high-frequency group contains four frequencies each. A high-frequency s
shuangyinduopin
- 双音多频信号，根据输入的音频信号判断实际对应的数字-Dual tone multi-frequency signal, the audio signal is determined based on the actual input of the corresponding number
DTMF
- 精确估计双音多频信号的频率 ◆通过不同窗函数，画语图分析双音多频信号 ◆估计各个时段的频率，频谱分辨率要求≤10Hz（含戈泽尔算法） ◆检测信号包含的电话号码信息 -Accurate estimation of the frequency of a dual tone multi frequency signal. ◆Through different window functions, the picture is drawn to analyze the dual ton
lab4
- 双音多频信号的合成和检测 可以实现按键音的形成和按键的检测-Synthesis and detection of dual tone multi-frequency signals can be tested key tone formation and keys
dtmf
- 双音多频DTMF 使用功率谱密度估计解码-Dual-tone multi-frequency DTMF decoding using the power spectral density estimation
DTMF
- 双音多频 DTMF（Dual Tone Multi Frequency），由高频群和低频群组成，高低频群各包含 4 个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。本代码对一段输入的语音信号文件进行分析，得到对应的数字 -DTMF (Dual Tone Multi Frequency), by the high frequency group and low frequency group, high and low frequency group each conta
dtmf
- DSP双音多频信号（行频和列频来表示电话机键盘上的一个数字）的产生和检测源码。好用，易懂。-DSP dual tone multi-frequency signal (line frequency and column frequency to represent a number on the telephone keyboard) to generate and detect the source code. Easy to use, easy to understand.
频率
- 精确估计双音多频信号的频率，数据文件采样频率为8kHz，“double”格式，估计出电话号码。(Accurate estimation of the frequency of dual tone multifrequency signals, data files, sampling frequency of 8kHz, double format, to estimate the number of the phone.)