!iM: iKlavka, classic monophonic (two voice) sound synthesizer with full screen piano keyboard. Free version.

特点
*单声道，在这样一个特殊时刻的一类合成器演奏一个音符
*振荡器模块
*双振荡器
*广场，三角波，锯齿波，反向锯齿波
*倍频选择，支持5个八度
*滑翔音符之间的（时滞处理器）
*振荡器微调（不止一个完整的八度）
*振荡器同步
*低通滤波器模块
*调制模块
*颤音/波
*颤音/间距
*过滤器
*包络发生器模块
*支持ADSR（攻击，衰减，维持，释放）
*音量
*滤波器（低通滤波器）
*琶音

Features
* Monophonic, playing one note at a time like a class synthesizer
* Oscillator Module
* Dual oscillators
* Square, Triangle, Sawtooth, Reverse Sawtooth waves
* Octave selector, supporting 5 octaves
* Glide between notes (Lag Processor)
* Oscillator fine tune (more than one full octave)
* Oscillator sync
* Low Pass Filter Module
* Modulation module
* Tremelo/Wave
* Vibrato/Pitch
* Filter
* Envelope Generator module
* Supports ADSR (Attack, Decay, Sustain, Release)
* Volume
* Filter (amount of low pass filter)
* Arpeggio