Dual Tone Multifrequency
来源:互联网 发布:甲种本 知乎 编辑:程序博客网 时间:2024/05/22 01:42
Dual Tone Multifrequency (DTMF)
DTMF is the tones heard when pressing a button on a telephone. Those tones are comprised of two tones played together (thus the name "dual tone"), as shown in the table below. These are defined in ITU-T Recommendation Q.23.
http://www.techabulary.com/d/dtmf.html
- Dual Tone Multifrequency
- DTMF ( Dual Tone Multi-Frequency )
- 双音多频信号(Dual-Tone Multi-Frequency, DTMF
- dual
- dual
- dual
- Tone Mapping
- Tone Mapping
- Tone Mapping
- iPhone ring tone
- 近距离观察Tone mapping.
- OpenGL-----Tone Mapping
- tone mapping简介
- Tone mapping进化论
- exchange 2007 dial-tone access
- 真实感渲染之Tone Mapping
- OpenGL-----Reinhard Operator Tone Mapping
- Arduino基础学习-tone函数
- ★ Linux HAL (Hardware Abstraction Layer)的工作原理
- 一个动态多维数组的实现
- 50种方法巧妙优化你的SQL Server数据库
- 记得吗?我们的祖先叫做炎黄!
- sql server 基本语法
- Dual Tone Multifrequency
- 七种程序员的基本技能
- 老森的梦,我的梦,有关预言。 (连载)
- 反 DebugAPI 调试?
- 售前顾问的WHAT及HOW
- Delphi - Top 7 Free component sets
- 《辛德勒的名单》观后感
- 用C#生成随机中文汉字验证码的基本原理
- 5月2日密码的答案