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DTMF5410
- DTMF 编解码器在编码时将击键或数字信息转换成双音信号并发送,解码时在收到的DTMF 信号中检测击键或数字信息的存在性.采用ccs2.2开发。运行在DES5410APP-U开发版上。 子程序_start_ac01，完成AD 及DSP 的多通道缓冲串口（McBSP）初始化。 子程序_iir_to_dtmf，通过由函数set_freq_coff()初始化的系数，分别迭代运算产生行 频和列频，该子程序计算出的两个频率信号样本值分别放入累加器a 和b，相加之 后作为新的一个音频样本发送
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.)
dtmf
- 基于DE1-SoC 开发板的双音多频（DTMF）代码。IDE 是 Eclipse DS-5(The code for a DTMF application based on DE1-SoC develop board. The IDE is Eclipse DS-5)
stm8s
- 实现stm8s控制mt8888进行双音多频(To achieve stm8s control, MT8888 dual tone multifrequency)
4
- MATLAB中数字信号处理在双音多频拨号系统中的应用(Application of digital signal processing in MATLAB to dual tone multifrequency dialing system)
fsk_dtmf
- 来电显示国家标准 以及双音多频 信号的数据格式(National standard of caller ID and data format of dual tone multifrequency signal)
sydpbh
- 根据分配的频率，任意输入6位（8位）电话号码，打印出相应的幅度谱和6位（8位）电话号码。(According to the frequency of distribution, 6 phone numbers are randomly input, and the corresponding amplitude spectrum and 6 bit telephone number are printed out.)
DTMF -
- stm用于双音多频软件解码，这个网页提示不能少于20个字，那我就多说一句，我用的单片机是stm32f103zet6的，程序已经试验成功(I can not speak English)
DTMF
- GUI界面设计实现DTMF双音多频电话拨号(GUI design and DTMF source code)