Multi Wave Oscillator!

This app generates the audio signal of six channels. [Features]- There are four types of waveform. (Sine, Triangle, Squire, Saw)- It can adjust the volume of each channel (Input) and set OFF / ON that, and can change the 6-channel mixer volume the (Output) in the bottom of the slider.- It can set the value of the frequency in 20.0Hz - 20000.0Hz.- In -1 / + 1 Octave button, it can set the frequency value of -1 / + 1 octave from the current value.- In the Preset button (Guitar, Bass), it can set the frequency value of Guitar (E A D G B E), 6-string bass (B E A D G C).