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shiyan8
- 按键电子琴,用8个按键,输出从中音1到高音1的8个音调。-Key keyboard with eight buttons, output from tone to treble tone 8.
DTMF
- 模拟双音多频(DTMF)拨号系统的MATLAB仿真,形象画出了每个数字键所代表产生的波形-Simulation of dual tone multiple frequency ( DTMF ) MATLAB simulation dialing system, image to draw each digital key represents the waveform
xiangmu
- 基于MATLAB的手机按键音识别系统设计的源代码,并利用GUI界面实现可视化操作功能-MATLAB-based mobile phone key tone recognition system design source code, and use the GUI interface to visualize operational functions
2
- 双音频按键识别 背景: 打电话拨号时,每次按键会发出不同的声音,这些声音实际上是由一些固定频率的正弦信号合成的。因为每个按键声音包含两个不同频率的正弦信号,因此也被称为“双音频”信号,简记为DTMF。这相当于是对不同键位用‘音频’进行了编码,如同计算机领域中用数字0和1对处理对象(包括键盘)进行编码。-Two-tone buttons identify Background: When you call dial, each key emits different sounds, whi
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
