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FSK-DTMF
- AVR mega16单片机上实现FSK和DTMF解码的程序，信号由AD 7.2K采样，是可用的，但具体使用时需要根据硬件条件对参数略作调整。-mega16 achieve FSK and DTMF decoder procedures, AD 7.2K signal from the sample is available, but the specific use of the hardware required under the right conditions parameters sl
DTMF 通过matlabGUI设计电话拨号界面
- 通过matlabGUI设计电话拨号界面，实现电话双音多频DTMF的仿真，根据所给数据制作拨号盘，并产生相应音调。-Design by matlabGUI dial interface to achieve multi-frequency DTMF tone telephone simulation, produced according to the data dial, and generates tones.
tapiwave
- ATAPI是對微軟TAPI的封裝，可以很好的在C#環境下開發TAPI應用程序，呼入呼出及DTMF的檢測等等，還可以錄音及放音-ATAPI is a Microsoft TAPI package, can be a very good environment in the C# development TAPI applications, inbound and outbound, and DTMF detection, etc., can also be recording and playba
dtmf
- 单音多频信号的产生和识别，采用FFT变换。应用于电话拨号。是学习数字信号处理的大作业。-Tone multi-frequency signal generation and recognition, the use of FFT transform. Applies to telephone dial-up. Digital Signal Processing is the study of large operations.
dtmf
- 本程序用于检测音频文件中是否具有DTMF信号，若有则将其检出。 程序首先使用Goertzel算法求出以FRAMESIZE（默认200）为大小的一帧数据在8个DTMF频点上的能量。 对Goertzel算法的改进，对于系数的计算不是采用2*cos[2*pi*k/N]，而是采用2*cos[2*pi*fn/fs],这样能够降低误差。 确定了8个频点的能量后运用一系列判决门限来确定有没有DTMF信号，以及信号是什么。 -This procedure used to detect wh
DTMF
- WAV格式的DTMF的音源，其中有对DTMF的介绍和应用。做DTMF识别的时候应该要用到。-DTMF WAV format audio source, including the introduction and application of DTMF. DTMF recognition should be made to use the time to.
cgacomtapi
- TAPI (1.4 )控件的特性如下：打外线电话，接听或拒绝内线电话。呼叫ID检测，DTMF音频，从电话记录或向电话回放WAV文件。-TAPI (1.4) controls the characteristics are as follows: get an outside line, or refuse to answer phones inside. Call ID detection, DTMF audio, from phone to phone records or WAV file
DTMF
- 通过STMF，IIR滤波器构建方法实现电话按键声音的功能-Through STMF, IIR filter construction method to achieve the functions of voice call button
dialdtmf_0_04_src
- dtmf 拨号程序，Pocket PC ，vc 工程演示-dialDTMF a Pocket PC (Pocket Contact) plugin to dial telephone numbers using DTMF s (aka Dual Tone Multi-Frequency) (tested under PPC2000 MIPS, PPC2000 ARM, PPC2002 ARM, Xscale WMPPC2003 and WM2003SE, WM5- if you want y
MT8870DataSheet
- The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters the decoder uses digital counting te
dsp.DTMF
- 在DSP基础上实现的DTMF双音频拨号，内含接受和发送代码-Implemented on the DSP-based DTMF DTMF dial-up, containing the code to receive and send
DTMF
- 通过单片机（例如：HT95系列、EMC78系列、MCS51系列等）和外围电路的设计应用三级管的3个特性区，结合程序来实现来电显示的解码。此方法能提供比较高的稳定性和可靠性。在设计应用中，免去了因采用FSK或DTMF专有解码芯片的高额成本。-Through the SCM (eg: HT95 series, EMC78 series, MCS51 series, etc.) and external circuit design and application of the three chara
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
- DTMF(双音多频）检测程序，就是目前PSTN电话中的来电显示的-DTMF (Dual Tone Multi Frequency) testing procedures, is the current PSTN phone calls show stuff
dtmf
- 基于ht9200与ht9170的DTMF信号的发生于接收-To send and receive DTMF signal basic on the ht9200 and ht9170
dtmf
- 由两个不同频率的正弦信号构成dtmf信号，然后根据dtmf信号的频谱检测出dtmf信号-The signal of dtmf is generated and detected
codyaray-dtmf-signaling-08f4143
- dtmf signaling source code using matlab
dtmf-decoder
- 一个DTMF的解码源代码，可以直接运行在Android 1.6以上的版本上，如果需要测试效果需要利用两根带MIC的耳机线做成两端3.5MM音频口直连，发射端直接用手机拨号即可看到另一端能解出相应的按钮-A DTMF decoder source code, can be directly run on Android 1.6 or later on, if the need to test the effect of two with MIC headphone cable made both
DTMF
- 检测8K采样频率，16位PCM码流的DTMF信号 标准的DTMF双频的检测还是可以的 误差检测可能不是很精确......以后再优化 压缩包里有C源码，build出来的elf文件，原始PCM码流(Detect 8K sampling frequency, 16 bit PCM bitstream DTMF signal Standard DTMF dual frequency detection is fine Error detection may not be accurate...
中国来电显示（DTMF）标准
- 中国来电显示（DTMF）标准,用于电话线连接的设备(China caller ID (DTMF) standard)